Xiaonan and Xiaomei run a fruit shop. They want to earn more money, but they don’t want to waste unsold fruits, so they often cut off some bad fruits and eat them themselves.

However, these seemingly good fruits are the main cause of their liver cancer.

Fruit is an essential part of our daily diet.

Fruits are rich in vitamins, minerals and antioxidants, which can provide the nutrients we need, help regulate our metabolism and promote the normal operation of our body functions.

Therefore, it is very important for our overall health to choose and eat fruits correctly.

These two fruits have been included in the "cancer blacklist"

1. Rotten and moldy fruit: Even if there is only one small mildew spot, the whole fruit will be toxic.

Most fruits contain a lot of juice, sugar and nutrients, so they are an ideal environment for mold growth. When mold grows in large quantities, fruits will begin to rot gradually.

Mold is actually a big family. Usually, mold does not cause fatal harm to human body. But under some suitable conditions, the problem of mold may be more serious than we thought.

For example, in rotten fruits, the most common toxins are patulin, ochratoxin A, aflatoxin and arthrosporin.

These toxins are harmful to human health to varying degrees, and may even lead to cancer, deformity or death.

Penicillin: It can pollute all kinds of fresh fruits and juices, and can damage the intestines and kidney function. The International Agency for Research on Cancer (IARC) lists it as a class 3 carcinogen.

Ochratoxin A: It is toxic to liver and kidney, and can pollute a small number of fruits, such as rotten dried figs and apricots. IARC classified it as a class 2B carcinogen.

Aflatoxin: A strong carcinogen, it can pollute rotten fruits such as sugarcane, raisins and dried figs. IARC classified it as a class 1 carcinogen.

Arthrospermycin: It is a definite carcinogen, which can pollute rotten sugarcane. If pregnant women eat it carelessly, it may lead to fetal malformation.

Therefore, it is recommended not to eat any rotten fruit, even if the bad parts are cut off, there may be toxin residues.

2. Areca catechu: a primary carcinogen

Areca catechu is a first-class carcinogen, and this conclusion was announced by the International Center for Research on Cancer in 2003.

Chewing betel nut for a long time is equivalent to subjecting the oral mucosa to both physical and chemical blows, so that it is constantly injured.

Long-term injury is a very dangerous carcinogen, and many organ cancers are related to persistent injuries, such as lung cancer, liver cancer, esophageal cancer and so on.

In these two cases, the fruit can be eaten after cutting the wound.

1. Low temperature frostbite causes

In the low temperature storage environment, the activity of superoxide dismutase in fruits decreases, and the free radicals in cells cannot be eliminated in time.

With the increase of the number of free radicals, they will change the permeability of fruit cell membrane, thus destroying the cell structure.

In addition, the low temperature environment will also improve the activity of pectin esterase in fruit, which will decompose insoluble pectin in pulp and make the surface of fruit "soft and rotten".

But in fact, the "frostbitten" fruit is only damaged by cells and does not produce microorganisms or toxins, so it can continue to be eaten.

2. Bumped and crushed fruit

In the process of collision, the cytoplasm in the fruit dissolves, and the colorless phenols in the cells are transformed into colored quinones.

In essence, these fruits are not infected by harmful pathogens such as bacteria, so short-term eating will not affect the body.

Of course, if the fruit in your house has been stored for a long time, and it is not clear what caused it to be "a little rotten", it is better to throw it away.

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IT House, a technology portal of Qingdao Soft Media, quickly broadcasts news headlines and mobile phone digital product evaluation, pays attention to smart cars and electric cars, AR/VR virtual reality, Apple iOS/iPadOS, HarmonyOS OS, Google Android, Microsoft Win11/Win10/Win7, and keeps a close eye on digital trends such as iPhone/iPad and Android smart devices and mobile phones.

In 2007, with Vista, there was the Vista House. When we indulged in the splendor of Vista, two years passed in a trance. Looking around, it turns out that it is a little lonely.

When we continue to follow the footsteps of Windows 7, we find that the world has changed. IPhone, iPad, Android, and Chrome OS have invaded our lives, and none of them can be less than mobile phones, tablets, computers, and smart TVs.

It’s a long night, and I can’t help thinking about why we exist, and what to entertain and greet the more than 700,000 friends who regularly visit and increase every day, so I have it, IThome.com. Welcome to IT House.

Where there are people, there are rivers and lakes; Where there is a computer mobile phone tablet, there is an IT home. Home of IT people, fireworks in IT field.

The readers of IT House are concentrated in young, trendy, energetic, sharing-loving, thinking and creating, advocating exploration and innovation, and daring to challenge and care about the future.
Men account for 89%
76% were aged from 20 to 27.
Typical readers: students, office workers, IT practitioners, technology enthusiasts, digital enthusiasts.

General Secretary of the Supreme Leader pointed out: "Health is an inevitable requirement for promoting people’s all-round development, a basic condition for economic and social development, an important symbol of national prosperity and national prosperity, and the common pursuit of the broad masses of the people."

With the continuous progress of building a healthy China, people’s health level has been continuously improved. By the end of the Thirteenth Five-Year Plan, China’s average life expectancy has increased to 77.3 years, and the main health indicators are better than the average level of middle-and high-income countries. The medical service and support capabilities have been continuously improved, and the physical quality and health literacy of the whole people have been continuously enhanced.

Over 7700

Hospitals above the second level that provide online services.

Lao Zhang from Guizhou is 64 years old. More than a year ago, he often had symptoms such as general weakness, chest tightness, shortness of breath and chest pain. He was diagnosed with tuberculosis after examination in a local hospital. In May 2021, Lao Zhang went to Hunan Chest Hospital for treatment accompanied by his family. The hospital organized an expert group to treat Lao Zhang with anti-tuberculosis and nutrition enhancement. Lao Zhang’s condition improved rapidly and his body gradually recovered. "I can walk now, especially thanks to the careful treatment of medical staff!" Lao Zhang’s daughter said excitedly.

China’s medical service capacity has been continuously improved, which can basically meet the medical needs of the broad masses. From January to October 2021, the total number of medical and health institutions in China reached 5.44 billion, a year-on-year increase of 23.4%. The utilization rate of hospital beds in China was 75.1%, up by 3.2 percentage points year-on-year.

National Health Commission has launched the "Action Plan for Further Improving Medical Services" for six consecutive years, striving to make medical treatment safer, more convenient, more effective in communication and more comfortable in experience. The majority of public hospitals further facilitate the majority of patients to seek medical treatment through the application of information technology, the provision of intelligent services, and the aging transformation. The data show that by the end of 2020, 51.2% of public hospitals with secondary and above have made appointments, 91.6% have carried out clinical pathway management, 63.2% have carried out telemedicine services, 86.7% have participated in mutual recognition of examination results at the same level, and 93.7% have carried out quality nursing services.

In recent years, "Internet+medical service" has run out of acceleration. By the end of 2018, there were only over 100 Internet hospitals. By June 2021, the number of Internet hospitals has soared to 1,600, and more than 7,700 hospitals above the second level provide online services. Third-party platforms have opened Internet medical services, further facilitating patients.

"Healthy China 2030" Planning Outline puts forward the goal of greatly improving health service capacity by 2030: a high-quality and efficient integrated medical and health service system and a perfect national fitness public service system are fully established, the health security system is further improved, the overall strength of health science and technology innovation ranks among the top in the world, and the quality and level of health services are significantly improved.

79 years old

Life expectancy per capita in 2030

At the end of 2021, the hemodialysis center of zhuoni People’s Hospital in Gannan Tibetan Autonomous Prefecture was officially opened, with 1 deputy chief physician, 2 assistant physicians and 8 nurses. The newly-built hemodialysis room is fully equipped. "It will be convenient to do treatment in the future." The patient, Lao Ma, said that in the past, dialysis was a time-consuming, costly and laborious task.

In the early days of the founding of New China, China’s medical conditions were extremely backward, and medical and health resources were mainly concentrated in big cities. Data show that at that time, there were only 3,670 medical and health institutions and 505,000 health technicians in China.

Nowadays, China’s medical and health resources have undergone earth-shaking changes. By the end of October 2021, the number of medical and health institutions in China was 1.038 million. Compared with the same period of last year, there were 872 hospitals and 12,745 primary medical and health institutions.

The leap-forward development of medical and health resources can not be separated from continuous funding. In recent years, China has continuously increased financial input in the field of medical and health care. In 2020, the total national health expenditure will reach 7,217.50 billion yuan, and the per capita health expenditure will be 5,112.3 yuan. Among them, government health expenditure was 2,194.19 billion yuan, social health expenditure was 3,027.37 billion yuan, and personal health expenditure was 1,995.94 billion yuan, and the proportion of personal health expenditure continued to decline.

The outline of the "14th Five-Year Plan" proposes to adhere to the public welfare nature of basic medical and health undertakings, take the improvement of medical quality and efficiency as the guide, take public medical institutions as the main body and non-public medical institutions as the supplement, and expand the supply of medical service resources. The "Healthy China 2030" Planning Outline proposes that the average life expectancy will reach 79 years in 2030. In the future, as China’s high-quality medical and health resources are further enriched and medical resources are more abundant, people’s health level will be further improved.

Over 60%

Signing rate of family doctors in key population

In 1967, 16-year-old Ma Wenfang became a "barefoot doctor" in Suliuzhuang Village, Dagang Li Township, Tongxu County, Kaifeng, Henan Province. Today, the village clinic has achieved standardized construction, and Ma Wenfang has become a family doctor. The villagers signed by Ma Wenfang are mainly residents over the age of 65 who suffer from diseases such as hypertension, diabetes and coronary heart disease. China began to implement family doctor contract service in 2017, and now the contract signing rate of key groups has exceeded 60%.

The establishment of county and village three-level medical system and rural cooperative medical system in China has been recognized by the World Health Organization. In 2009, China launched a new round of medical and health system reform, and rural medical and health conditions were further improved. By the end of October 2021, there will be 985,000 grass-roots medical and health institutions nationwide, including 36,000 community health service centers (stations), 35,000 township hospitals, 272,000 clinics (infirmary) and 608,000 village clinics.

The construction of county medical community has been accelerated, and the rural medical service capacity has been continuously enhanced. In April 2017, the General Office of the State Council issued the Guiding Opinions on Promoting the Construction and Development of Medical Consortium, proposing to set up a medical community in the county, give full play to the role of county-level hospitals as a link between urban and rural areas and a leading role in the county, form a division of labor and cooperation mechanism for county-level medical and health institutions, and build a three-level linkage county-level medical service system. Through more than four years of exploration and construction, the number of county medical communities in China has increased rapidly: by the end of March 2021, China had built 4028 county medical communities.

The "14th Five-Year Plan" outlines that high-quality medical resources in provinces and cities should be promoted to support the development of county-level hospitals, and 500 county-level hospitals (including traditional Chinese medicine hospitals) should be added to meet the facilities and service capacity of tertiary hospitals. We will steadily expand the coverage of contracted services for urban and rural family doctors and improve the quality of contracted services. The shortcomings of medical and health care in rural areas will be further supplemented, and rural residents will get more benefits from medical treatment. (Reporter Shen Shaotie)

In this era when everyone is chasing dramas and gossiping, we need to read books.

We need to find a pure land for our hearts and regain the happiness of reading.

Fan Shujun selected ten famous sentences, each sentence is a classic, and each sentence is life.

Life can’t be as good as you think,

But it’s not as bad as you think.

-Mo Bosang’s Life

We always look forward to a happy ending.

Most TV dramas also end when they are broadcast to family fun.

But life is not like this.

It is full of mud and sand, with laughter and tears.

As long as you are alive, you have to experience it. Experience joy, experience sadness.

There is no happy ending.

Always on the road is the only answer to life.

The world won’t care about your self-esteem,

People only see your achievements.

Before you achieve anything,

Don’t overemphasize self-esteem.

-Fitzgerald’s The Great Gatsby

If you want to succeed in the secular sense and gain the recognition and praise of the world, you can’t overemphasize self-esteem.

It is a compulsory course for success to go through all kinds of hardships.

Self-esteem is like white shoes.

People who are always worried about whether their shoes are dirty can’t walk on the dirt road.

Putting down your posture is the first step to success.

When I am silent, I feel full,

When I speak, I feel empty.

-Lu Xun’s "Wild Grass Inscription"

When people reach middle age, they gradually find that people don’t have to talk too much.

Not every fish lives in the same sea.

Everyone’s cognition and understanding are different.

Once you open your mouth, it is easy to bring right and wrong in many cases.

People who know you don’t have to say it, and people who don’t need to say it.

Half of life, slowly understand.

Most of the words should be told to yourself, and you should taste the joys and sorrows yourself.

It is not easy to complain, and you don’t have to spit at will.

Silence is a realm and a practice.

If you can’t avoid it,

You have to put up with it

Cann’t stand what life is destined to endure,

Is a sign of weakness and stupidity.

-Charlotte Brontexq’s Jane Eyre

Life is always impermanent.

Maybe at any time, disaster will befall you.

We are afraid before the disaster comes, and we are afraid in imagination.

I often scare myself.

But once disaster strikes, no matter how hard it is, we must bear it.

People will get used to it gradually.

This is human resilience.

We gritted our teeth and walked away. Until one day, a bright future emerges.

When we look back, we find that we have come a long way.

We are actually braver than we thought.

In the street where sixpence is everywhere,

He looked up at the moon.

-Mao Mu’s The Moon and Sixpence

In the eyes of the world, money has become justice.

But there are still many people who stick to their ideals.

They say: chasing dreams is chasing your own bad luck.

This is like a mockery, but also like a tragic.

Maybe one day, we will become more diverse and inclusive.

There will be more and more people watching the moon.

Unfortunately,

It is the step of genius;

The baptism water of believers;

The priceless treasure of capable people;

The bottomless pit of the weak.

-Balzac’s "Human Comedy"

For different people, the meaning of suffering is different.

For the strong, this is the best test and an excellent advanced journey in life.

But for the weak, it is bottomless darkness.

Suffering is the touchstone of life.

Polish yourself into a real strong person, so as not to be afraid of the wind and rain.

If you want something, you have to set it free.

If it comes back to you, it belongs to you,

If it doesn’t come back, you never had it.

-Dumas "The Count of Monte Cristo"

The tighter you hold something, the easier it is to lose it.

It is better to let go decisively than to be nervous.

It’s yours that others can’t take away, not yours, and it will be lost sooner or later.

In that case, why be persistent.

It is much more difficult to judge yourself than to judge others.

If you succeed in judging yourself correctly,

Then you are a real wise man.

-Exupery’s The Little Prince

People are all the same, their eyes are in front, they can only see other people’s faults, but they are unwilling to reflect on their own.

Man’s greatest enemy is not others, but himself.

Those who always feel right and always pass the buck will be rejected sooner or later.

Only by being aware of one’s own problems can one constantly correct and move forward.

Remember what should be remembered and forget what should be forgotten.

Change what can be changed and accept what cannot be changed.

-Salinger’s good girl

Life is like a mobile phone, no matter how high it is, it will get stuck with use.

Clear the memory regularly so that the mobile phone can be used normally.

The same is true of people.

Clean up the garbage of the mind regularly, learn to accept and learn to give up.

Only in this way can the heart be open-minded and at ease, and life can be comfortable and calm.

Marriage is a besieged city,

People outside the city want to go in,

People in the city want to come out.

—Fortress Besieged by Qian Zhongshu

Marriage has the warmth of marriage, and there is freedom to marry without marriage.

Life is a game of choice.

If you give up, you will get it, and if you get it, you will give up.

Don’t envy other people’s lives, because others may also envy you.

If a man drinks water, he knows it well.

It is enough to choose your own path and go on without complaining or regretting.

Author | Ru Fengjun

Source | Confucianism (ID: rufengdajia), a gathering place for Chinese scholars, the original number of super-quality Chinese studies. Everyone with temperature, value, interest and Confucian style will accompany you to understand China culture.

Layout | afterview

Picture | Picture Worm Creativity

Original title: "The 10 most touching sentences of world famous works should be read at least once in your life"

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　　Shops and convenience stores in Shanghai are being reshuffled.

　　Carrefour has been operating in China for more than 20 years, and the new owner has been replaced by Suning; Metro, which entered almost at the same time as Carrefour, is also looking for the receiver of China business … … Even ordinary consumers can clearly feel this change when walking on the street — — Traditional hypermarkets such as e-mart and Tesco are gradually withdrawing from the downtown area and being replaced by various new supermarkets and convenience stores. Among them, there are foreign brands such as ALDI, the century-old supermarket chain in Germany, Costco, the second largest retail supermarket in the world, and new brands hatched by domestic capital such as Pick’n Go, Suning Store, Ole’s boutique supermarket and G-Super. Shanghai’s supermarket industry has become more and more lively.

　　Every round of survival of the fittest, Shanghai’s supermarket industry is evolving itself. Every brand is constantly trying and growing in this new era of consumption, letting go of the game between technological upgrading and business model change. And all business comes from the most basic variable, the consumer.

　　■ Wen Wei Po reporter Xu Jinghui

　　Giant game

　　Those who can’t run fast will eventually be eliminated

　　In the early 1990s, the supermarket format entered Shanghai for the first time, and it has reached the stage of standing in the thirties. However, this mature system is not calm, and "undercurrent surging" is the most appropriate adjective to describe the current state of this industry.

　　At the end of last month, Suning.cn announced that its wholly-owned subsidiary Suning International planned to invest 4.8 billion yuan to acquire 80% shares of Carrefour China, thus swallowing this "behemoth" with an operating income of nearly 30 billion yuan in China. Not only Carrefour, but also the "Big Mac" supermarkets in the past seem to have a "middle-aged crisis". Lotte, e-mart, Tesco and other brands have withdrawn one after another, while Metro has been seeking to sell its China business … …

　　The "vacancy" in the market has been replaced by new brands with stronger capital. Box Ma Xiansheng, hatched from Alibaba, became the main store for major shopping centers in just three years, and successfully embarked on the "C position"; Tencent invested heavily in Yonghui’s new format "super species", which expanded rapidly nationwide; Greenland Group’s G-Super Greenland, which lays out the retail industry, is preferably fully expanded in first-and second-tier cities, with 31 stores opened in Shanghai alone … … These supermarkets rooted in shopping centers have gradually replaced the original "single-family" hypermarkets.

　　The same situation also appeared in the convenience store industry. Many years ago, small convenience stores such as Keke, Haode, Liangyou and Diatiantian, which were all over the streets of Shanghai, were shrinking, while Japanese brands such as Family and Rosen developed steadily, while a number of new brands such as Suning Store and Convenience Bee rose, with the blessing of giants such as Suning, Tencent and Gaoyou Capital.

　　Looking at the reshuffle of the supermarket industry, behind the giant game is actually the transformation of business philosophy: when the development and reform of a format can’t beat the market and consumers, it will inevitably go downhill. In the past, the supermarket format faced a market that had not been developed by e-commerce, and consumers had to rely on the offline shopping environment. Therefore, the intensive and one-stop shopping environment was favored. With the impact and integration of e-commerce, the past business model has been difficult to meet the needs of current consumers.

　　The re-opening of the supermarket industry, the traditional hypermarkets represented by Yonghui and RT Mart, and the new brands represented by Boxma Xiansheng, have similar paths — — Seamless online and offline links to speed up home service. In March last year, RT Mart’s "online ordering and offline delivery" service was fully rolled out. Bin Yuan, a new retailer in RT Mart, revealed in an interview that although this transformation is difficult, the effect is quite obvious after the integration of online and offline, which not only greatly improves the efficiency, but also makes the consumer structure younger, which is the most desirable change of traditional hypermarkets.

　　Consumer competition

　　Adjust the strategy according to consumer preferences

　　In this round of reshuffle, the change of business model comes from the most basic variable of consumers. A report from Deloitte shows that the rapid economic development in China has stimulated the consumption demand of the younger generation. Different from the previous generation of consumers, young consumers pay more attention to convenient, personalized and high-quality shopping experience.

　　Judging from the shopping habits of the main consumers, such as post-80s, post-90s and even post-00s, they are fundamentally different from the previous generation: post-80s and post-60s like to browse the promotional advertisements stuffed into mailboxes in supermarkets, then get on the free shuttle bus early in the morning and buy all the discounted daily necessities at once in the stores. However, the post-80s and post-90s are not like this. As far as their eyes are concerned, the "June 18th Promotion" and the "double 11" online carnival are the two major shopping labels at the middle and end of the year, respectively. Those daily necessities such as paper towels, toiletries and baby diapers are purchased at a low price at one time. Even if they "improvise" and move their fingers, these standard products can basically be purchased from all over the country in one day.

　　The change of consumers’ shopping habits has a great impact on hypermarkets. Some surveys show that in first-tier cities, the frequency of young consumers going to large supermarkets can be calculated by "month", which makes the "Big Mac" have to make strategic adjustments around the changes in consumer demand.

　　At present, a relatively successful adjustment model is the development of large-scale enterprises with ultra-miniaturization. For example, Easy Carrefour is a successful case. Its most obvious benefit lies in cost saving. On the one hand, those goods with high online shopping rate gradually withdraw from the shelves, greatly reducing the area of the supermarket; On the other hand, these supermarkets, with an area of about 1,000 square meters, mainly focus on fresh food, imported food, beverages and other products with high repurchase rate and instant consumption, which can filter the positive impact brought by e-commerce to the maximum extent.

　　The development of large-scale supermarkets towards miniaturization is also helpful to its site selection. Previously, "Big Mac" stores loved "single-family" stores, with all kinds of parking lots and shuttle buses. Now, entering shopping centers is not only easier to operate than big stores, but also easier to reach young consumers, and it is also convenient for large-scale expansion.

　　From a deep perspective, the miniaturization of big stores is also a reasonable combination of the whole supply chain to optimize in depth. Nowadays, these scattered supermarkets are already composed of two parts — — Front store and back warehouse. The function of "front store" further flies away in the direction of "emergency+experience", such as fresh products, beverage products and so on; The "back warehouse" has turned into a "front warehouse" for online shopping users, stocking according to big data and responding to online shopping needs.

　　Cost bottom line

　　Looking for breakthrough direction in "actuarial science"

　　The reshuffle of Shanghai Shangchao format is also closely related to cost. At the end of 1990s, when the first batch of hypermarkets entered Shanghai, they signed multi-year leases in one breath. Now, most of them quit because the leases expired and they could not afford high rents.

　　But the latecomers also have to face the cost game — — The premise of any business model is profitability. In the era of supermarkets with high rents and high labor costs, new solutions are needed.

　　Starting from the "variable" of consumers, fresh products with high gross profit have become the main direction of major brands. In this matter, as big as box horse fresh, super species, Ole’ Boutique supermarkets, as small as Suning stores and Haode convenience stores, are all making efforts. As a matter of fact, the fresh-keeping strategy has achieved very good results in the early stage. This kind of goods with high repurchase rate and high gross profit margin can directly drive profit growth. Fresh products have made extremely important contributions to the reason why Box Horse Fresh Life’s first store in China can realize single-store profit so quickly.

　　However, we have to pay attention to the fact that when all brands are heading for running all the way, the rapidly saturated market makes this once-tried-and-tested model "kick the iron plate". Box Ma Xiansheng has closed its store for the first time this year, and Wanda Store in Wujiaochang, the first store of Yonghui Yunchuang’s super species in Shanghai, has recently closed its doors. According to Suning.cn’s financial report, the loss of Suning Store only reached 296 million yuan in the first seven months of 2018. With the rapid expansion of the store, this loss will expand sharply. How to stop loss will be a difficult problem that these brands must face.

　　To cope with the high cost, another way to solve the problem is to replace manpower with technology. For example, the newly-emerging brand Convenience Bee is equipped with unmanned payment equipment in all stores in Shanghai. In convenience stores that are open 24 hours a day, the work of the night clerk is mainly to receive goods, replenish goods, tally, etc., and the cashier work is replaced by intelligent technology equipment.

　　Before this, unmanned supermarkets were indeed booming. In 2017, Taobao’s "Amoy Coffee" became popular at the Creation Festival. Since then, all parts of the country have tried water without retail. However, from the current development, the cost of artificial intelligence is much higher than that of labor, which hinders the promotion of unmanned supermarkets. A retired employee of Binguo Box, an unmanned convenience store, told reporters that the company started to lay off employees at the end of last year, and it has plummeted from more than 500 people at its peak to more than 100 people now. However, Wei Xueqi, an associate professor in the Department of Information Management and Information Systems, School of Management, Fudan University, believes that the launch of the 5G commercial tide will be of great help to unmanned supermarkets in the next year or two. Once the technical cost can be greatly reduced, it will be able to support this new format. Accelerate development.

　　In addition, it is also a strategy to open a shop in the suburbs where the land price is cheaper. Whether it is a Sam member store in Qingpu or Pudong, or a market opening guest who is about to open, it is such a prudent business. Andrew Miles, president of Sam member store’s China business, calculated an account for the reporter: the cost of opening a store in the suburbs is only half of that of an urban supermarket, while the sales volume brought by strict control of product quality can reach 5 to 10 times that of an ordinary supermarket, which gives the possibility of a virtuous circle of supermarket formats.

　　Personalized development

　　Thousands of stores and thousands of faces, to "change" to meet the trend.

　　The transformation of Shanghai supermarket industry is far from over, because from this summer, a large wave of new stores will be unveiled in Shanghai — —

　　At the end of June, Oleqi, a famous cheap supermarket brand in Europe, opened two offline stores in one breath and officially entered the retail battlefield in China.

　　On July 2nd, Box Horse opened a new convenience store in Shanghai — — Pick’n go, the "smallest" box horse store in history, covers an area of less than 20 square meters. It is mainly engaged in fresh food and is also the latest attempt of box horse.

　　On July 4th, Yonghui Supermarket "Market Life" opened in Sanlin Impression City, Pudong, with the combination of traditional market culture and fashionable and modern farmer’s market decoration as its selling point.

　　In late July, Yonghui Supermarket’s first mini community store will soon land in Nanxiang, Jiading, which is also a new exploration of Yonghui Supermarket after "super species" … …

　　New brands emerge one after another, and "change" is the only constant theme. Hou Yi, CEO of Box Horse Fresh Life, once said that in addition to Box Horse Fresh Life, they are actively exploring new formats such as Box Horse Vegetable Market and Box Horse mini, and studying the best format model in different cities, different regions, different population densities and different scenarios, so as to make strategic reserves for the development in the next decade.

　　Not long ago, Convenience Bee got the first hot meal business license of convenience store in Shanghai. Nowadays, in every store, you can see a hot meal sales area enclosed by a glass curtain wall, which is equipped with steaming oven, cleaning and disinfection washing pool, warm water heat preservation cabinet and other equipment and facilities for supplying hot food. After the hot meal is heated, it can be stored in the warm water heat preservation cabinet, which can maintain a constant temperature, which means that no matter the first guest or the last guest, they can get the meal with the same temperature.

　　At the same time, theme stores and exclusive imported goods are also important "playing methods" for major brands. At the end of May, Rosen’s first Hello Kitty theme convenience store in the world opened in Nanjing East Road subway station. Before that, this convenience store had launched theme stores such as "Shanghai Football", "Teddy Bear" and "Detective Conan" to attract consumers to stop. The G-Super Green Space Optimization is based on the spillover effect of the import Expo, trying to improve its core competitiveness while introducing more new overseas products and bringing global good goods into the domestic market more efficiently.

　　In the ever-changing, Shangchao industry is working hard in the direction of segmentation and personalization. These differentiated explorations may become the keys for brands to settle down in the future. Liu Min, deputy director of the Shanghai Municipal Commission of Commerce, said that the retail industry in Shanghai experienced the last round of information technology development, and now it has returned to quality and service again, forming a positive spiral upward trend, which will bring brand-new vitality and energy to the supermarket industry in Shanghai.

　　According to the public data of the Ministry of Commerce, in April this year, the national building materials and home furnishing prosperity index (BHI) was 117.65, and the sales of building materials and home furnishing stores above designated size exceeded 110 billion yuan, and the cumulative sales from January to April exceeded 420 billion yuan.

　　Although the above data decreased slightly compared with the same period of last year, with the introduction of "trade-in" policies in various places since April, and the favorable factors such as the overlapping market entering the traditional peak season, the household sector continued to release consumption vitality, the industry prosperity rebounded, and the "Xiaoyangchun" market in the home building materials market also continued.

　　The market potential of "trade-in" is huge.

　　At present, China’s real estate market is still in the adjustment stage, but since the beginning of this year, favorable policies have been implemented in various places, and industry insiders expect that the industry will accelerate its stabilization. As the downstream industry of the real estate market, the consumer demand of the national building materials and home furnishing market continued to be released from January to April. Although the sales data decreased slightly year-on-year, thanks to the help of the policy side, the overall situation was still improving.

　　In March this year, the State Council issued the Action Plan for Promoting Large-scale Equipment Renewal and Trade-in of Consumer Goods (hereinafter referred to as the Plan) to promote economic transformation and upgrading and improve the quality of life of urban and rural residents.

　　The "Proposal" pointed out that for the trade-in of household appliances, it is necessary to improve the convenience as the core and smooth the consumption chain of household appliances; In order to promote the replacement of home improvement consumer goods, it is required to support residents to carry out local renovation of old houses, kitchens and bathrooms, continue to promote the aging renovation of homes, and actively cultivate new consumption such as smart homes. Promote home improvement model rooms to enter shopping malls, communities and platforms, encourage enterprises to build online model rooms, and provide affordable products and services to meet diversified consumer needs.

　　"The introduction of the trade-in policy is a major positive for the home furnishing industry." Qin Zhanxue, president of China Building Materials Circulation Association, pointed out that the relevant data of the Ministry of Housing and Urban-Rural Development showed that by the end of 2022, the total number of urban and rural housing construction in China had exceeded 600 million, with huge market potential. "As houses enter the aging cycle one after another, the demand for renovation and functional upgrading will gradually increase. It is expected that the industry will usher in a new round of trade-in climax in the future."

　　According to incomplete statistics, in the past year, the total output value of China’s home improvement industry was about 2.77 trillion yuan, of which the demand for local decoration exceeded 35%. "It is conservatively estimated that the replacement scale of the home and home improvement market will exceed one trillion yuan." Hu Yanan, secretary-general of China Building Decoration Association’s Residential Decoration and Parts Industry Branch, said that according to the association’s rough calculation, there are more than 200 million houses in urban housing that are over 20 years old, and the demand for renovation and transformation at the consumer end is strong.

　　Grasp the "renewal" cycle and accelerate the layout of enterprises

　　The promulgation of the "Program" has given industry support and guidance at the policy level and brought new development opportunities at the development level. Many home associations and head home stores have acted quickly, actively responding to the policy call and helping to release the potential of home consumption by issuing trade-in coupons, promoting in communities, and granting subsidies.

　　At the end of April, at the annual meeting of the housing industry in 2023-2024, the Residential Decoration and Parts Industry Branch of China Building Decoration Association, in conjunction with the head home improvement enterprises and parts and materials enterprises all over the country, officially launched the "Home Improvement Trade-in Action". "I hope that through this action, a group of’ home improvement practitioners’ will be cultivated, and typical cases of enterprises will be launched to create a more assured, worry-free and secure consumption environment." According to the relevant person in charge of China National Equipment Association, this action aims to promote the effective implementation of "trade-in" related programs in the home improvement and home furnishing industries, and call on the whole industry to respond to the replacement of home improvement consumer goods, and encourage member units to actively carry out local upgrading and renovation of old houses, kitchens and bathrooms, and aging renovation of homes.

　　On May 6th, in response to the "Consumption Promotion Year" policy of the Ministry of Commerce, and vigorously promoting the trade-in of the household industry, China Building Materials Circulation Association also launched the "Third National Green Smart Home Consumption Festival", which empowered enterprises by implementing the relevant action plan of "trade-in" and issuing exchange vouchers for trade-in.

　　Focus on home stores. According to our understanding, the heads including Red Star Macalline and Easyhome made relevant implementation plans as early as the "trade-in" scheme was put forward.

　　Among them, Beijing Red Star Macalline has invested more than 10 million yuan since March to promote trade-in, benefit consumers, and help people rejuvenate. It is reported that in order to make more consumers enjoy the trade-in benefits easily, Beijing Red Star Macalline not only joined hands with 17 brand enterprises such as Xilinmen, Wrigley Sanitary Ware and Boloni to participate in the trade-in activities of green smart consumer goods, but also distributed subsidies of about 8 million yuan in different forms through online and offline channels.

　　The relevant person in charge of Red Star Macalline said that consumers can make an appointment to drag the old service through the "Red Star Home" applet, and they can enjoy the 600 yuan subsidy at the highest; Go to the offline store for "replacement", and you can also enjoy the government subsidy and superimpose the joint discount. "At present, relevant subsidies have been launched in five major shopping malls in Beijing, and consumers can get subsidies and enjoy the benefits of renewal."

　　The data shows that since the beginning of this year, Red Star Macalline has launched a large-scale "trade-in" campaign for home appliances in many shopping malls across the country, taking the demand for trade-in as the contact point to obtain accurate store traffic for shopping malls, and guiding the related sales between home appliances and other categories through refined operation.

　　On May 9, Easyhome also revealed the progress of "trade-in" on the investor interaction platform. It said that this year, it will comprehensively promote the three major IPS of "trade-in furniture and household appliances", "old houses for new looks" and "it is difficult for families to find them", which will drive the rapid growth of home sales.

　　The relevant person in charge of Real Home pointed out that the company released the "trade-in" strategy as early as 2022 and carried out related business. "According to statistics, a number of IP activities related to’ trade-in’ achieved remarkable results last year, achieving 207,000 customers, guiding sales of 650 million yuan and recycling 68,000 old things." The person in charge said.

　　At the same time, many home furnishing enterprises also seize the favorable market cycle and fully exert their strength in the stock market.

　　At the beginning of May, Qumei Home officially launched this year’s trade-in activities in the "Huanxin Plan Conference". In fact, since the first launch of this activity in 2013, Qumei Home has positioned it as a long-term and far-reaching important action. Zhao Ruihai, chairman of Qumei Home Furnishing Co., has repeatedly said that "trade-in" is not only a commitment to consumers, but also a manifestation of corporate social responsibility.

　　"Among about 300,000 customers accumulated by enterprises, some of them are currently in the consumption cycle that needs to be updated and iterated." Recently, Meike Home also publicly stated that this year, it will increase visits to early users, carry out maintenance and clue acquisition, with a view to providing consumers with diversified replacement programs. Oupai Home has launched the whole house renovation and whole package services, such as package storage, package discount, package design and help to move, to meet the diversified needs of consumers.

　　The industry believes that promoting the trade-in of household products requires both upstream and downstream synergy, and the household industry needs to continuously and deeply tap its own resources to promote the sustainable development of trade-in in a more market-oriented way and more convenient activities.

　　Both ends of supply and demand still face corresponding difficulties.

　　Although the market potential of trade-in is huge, it faces many difficulties in practical operation.

　　From the consumer side, how to deal with the replaced furniture, where to store the old furniture, and how to find a "reliable" decoration company and foreman may all hinder the implementation of the old-for-new policy. On the supply side, trade-in, local renovation and other links have a large amount of work, relatively low customer list value, and most of them are concentrated in old communities, so the construction difficulty is relatively high.

　　"At present, the residual value of many furniture recycling and dismantling wastes is relatively low, and the willingness of large-scale platform enterprises to participate in recycling is insufficient, but consumers do not have the ability to handle large pieces of furniture by themselves, which will become a constraint for replacing new ones to some extent." Zhu Jiagui, CEO and general manager of Red Star Macalline Home Furnishing Group, said that it is not easy for most home furnishing enterprises to provide large-scale trade-in services and handle old furniture well. "It is necessary to pay higher operating costs in terms of management, operation, normative environmental protection and demolition." Zhu Jiagui said.

　　In view of the problem that "trade-in is easy to abandon the old", Qin Zhanxue believes that the focus of trade-in should be on the "new" and the treatment of the "old" should not be ignored. "Old products should not be treated as garbage, but should be reused." He said, for example, furniture products can be dismantled and recycled, while construction waste can be reprocessed into floor tiles for municipal decoration materials.

　　The relevant person in charge of the Consumer Promotion Department of the Ministry of Commerce said that the trade-in work involves thousands of households and the vital interests of consumers. Promoting the trade-in of consumer goods is not only a powerful measure to enhance the momentum of economic growth and consolidate the good momentum of recovery, but also a long-term strategy to promote the high-quality development of the home furnishing industry. In the future, the industry should gradually establish an effective mechanism of "it is easier to get rid of the old and more willing to replace the new", so that consumers can enjoy better services and the trade-in action can be truly and thoroughly carried out in the industry. Text/Zhang Xinyu

　　Source: Beijing Evening News

In the era of smart electric, a real flagship model needs not only excellent design and performance, but also cutting-edge technology support. Aouita 07, based on CHN model, is the crystallization of tripartite cooperation among Changan Automobile, Huawei and Contemporary Amperex Technology Co., Limited, which brings together the top technologies of the three companies. Changan Automobile’s profound experience in building cars, Huawei’s smart car solutions and Contemporary Amperex Technology Co., Limited’s advanced battery technology have jointly injected powerful scientific and technological genes into Aouita 07.

Huawei’s driving ADS 3.0 is the core technology of Aouita 07. Relying on Huawei Gankun Intelligent Driving ADS 3.0, Aouita 07 can not only start and stop on its own, but also show its leading strength in active safety, and can achieve forward, lateral and backward active protection through omni-directional anti-collision CAS 3.0.

The flagship of science and technology in Aouita 07, CHN mode explains the scientific and technological charm of the intelligent electric age with its strength. (information)

Upstream News Kevin·Z

Optimize market access, expand sales channels and strengthen fiscal and taxation support.
Our province introduced measures to support export products to domestic sales.

Fully protect the transportation demand of goods exported to domestic market, and support e-commerce platform to set up online Liaoning foreign trade product sales area … Recently, the provincial government issued "Several Measures to Support Export Products to Domestic Market in Liaoning Province" (hereinafter referred to as "Measures"), and introduced eight measures around strengthening the protection and application of intellectual property rights, broadening channels to support domestic sales, and improving the level of facilitation of domestic sales, so as to support marketable export products to explore the domestic market and promote the mutual promotion of domestic and international double circulation.

According to the relevant person in charge of the Provincial Department of Commerce, our province mainly focuses on the equipment manufacturing industry, and it is difficult to export such products to domestic sales. It is necessary to remove obstacles and provide guarantees from the institutional level to solve the "pain points" of enterprises with different standards, poor channels and high financial pressure.

The "Measures" propose that we should combine the needs of new infrastructure, new urbanization and major engineering construction in our province, organize a batch of qualified export products such as metallurgy, petrochemical, building materials and machinery to be sold domestically, and help foreign trade enterprises integrate into the industrial chain of investment projects.

Different product standards at home and abroad are a common problem that foreign trade enterprises in our province face when exporting to domestic sales. The "Measures" propose to optimize market access and promote the integration of standards. Before the end of this year, foreign trade enterprises are allowed to make relevant written commitments to export products that meet the requirements of China’s mandatory standards through self-compliance statements. In addition, our province will also support foreign trade enterprises to develop "homogeneous products with the same line and standard" and expand the application scope of "homogeneous products with the same line and standard" to general consumer goods and industrial products. The so-called "same line, same standard and homogeneity" refers to the production of products that can be exported and sold domestically on the same production line according to the same standards and quality requirements.

At the same time, our province will open up channels to support domestic sales, including supporting e-commerce platforms to set up online Liaoning foreign trade product sales zones to promote the transformation of foreign trade enterprises to online sales; Encourage foreign trade enterprises to use new formats and new models such as online sales, live broadcast and scene experience to expand the scale of transactions; Encourage the use of pedestrian streets and professional markets to facilitate the sale of export products by foreign trade enterprises; Support foreign trade enterprises with independent brands and strong willingness to sell domestically, and establish long-term direct purchase and supply relations with large chain stores in the province.

Foreign trade enterprises may face problems such as long account period and large capital occupation when exporting to domestic market, and need financial and taxation support. Our province will support financial institutions to develop financial products suitable for foreign trade enterprises to explore the domestic market, and encourage all regions to adopt "policy guarantee+finance+goods pledge" and other ways to innovatively solve the financing problem of foreign trade enterprises to explore the domestic market. Our province will also shorten the time limit for taxation, compress the existing time limit for handling limited matters to 5 to 10 working days, and turn some limited matters into immediate matters; One-stop tax service, allowance handling, invoice mailing and other services are implemented for enterprises that export products to domestic sales. (Reporter Dong Hanbo)

Cctv newsAfter placing an order online, many consumers have received a "favorable cashback" card attached to the goods, or a short message or phone call seeking favorable comments. Recently, Taobao announced that it would prohibit sellers from guiding favorable comments by means of favorable comments cashback.　

Taobao issued a new regulation in official website, pointing out that sellers are not allowed to ask buyers to only write favorable comments, modify evaluations, add evaluations, etc. by themselves or through third parties; It is not allowed to encourage and guide buyers to "praise" on the condition of material or monetary commitment.

Bao Ran, Deputy Secretary General of Zhongguancun Modern Information Consumption Application Industry Technology AllianceBribing consumers or related user groups to make false or distorted product evaluations is illegal in essence.

emergency food（emergence food，EF）It refers to a kind of food used to maintain human survival in emergencies such as disasters, wars and crashes. Common emergency foods mainly include earthquake relief emergency foods, military emergency foods, civil emergency foods and M9 outdoor emergency foods. Due to the late start of research and development,There is still a certain gap between China’s emergency food and developed countries such as the United States and Japan in processing and packaging, nutritional characteristics, food safety and other key technologies.

At present, the problems caused by the insufficient development of emergency food have initially appeared. First of all, during or after natural disasters, food in disaster areas and other affected areas may be contaminated by microorganisms and chemicals, and some food-borne diseases, including hepatitis A, typhoid fever and a series of intestinal diseases, such as cholera and dysentery, are prone to break out, thus affecting the health of victims and the effect of disaster relief.

Secondly, due to the imperfect design of emergency food formula,Its nutritional structure is difficult to meet the nutritional supply needs of specific people.It is difficult to predict the time and place of some emergencies, which also leads to the traditional supply chain processing equipment and storage and transportation system can not meet the stable supply and accurate distribution of emergency food, which makes the rescue efficiency decline.

This paper summarizes the types and characteristics of emergency food, the development status of product development, storage and transportation, processing and packaging technology, and looks forward to the research and development strategy, processing, storage and transportation strategy and food safety of emergency food in order to provide new ideas for the development of emergency food industry in China.

Types and characteristics of emergency food

With the frequent occurrence of emergencies around the world, the demand for emergency food is increasing. In order to better meet the nutritional needs of different rescue scenes and people, and combined with the laws of emergency food diversity, high energy density, storability and convenience for eating, a variety of common emergency food types have appeared in recent years, including canned food, compressed dry food, instant hot food, dehydrated food, etc. The advantages and disadvantages of different types of emergency food are shown in Table 1.

Table 1 Advantages and disadvantages of different types of emergency food

Emergency food has the following characteristics:

(1) Long shelf life: Emergency foods usually have a long shelf life to ensure edibility in emergency situations;

(2) Rich nutrition: under the premise of meeting basic energy, emergency food pays more attention to the functionality and special dietary effect of food according to the needs of the target rescue population;

(3) Portable: Emergency foods are usually packaged in light packages to quickly respond to emergencies;

(4) Food safety: Due to the harsh and changeable emergency rescue environment, the food safety of emergency food is very important.

When selecting emergency food types, it is necessary to make reasonable selection and planning according to disaster types, storage conditions, crowd demand and transportation environment. At the same time,Emergency food should be inspected and updated regularly to ensure food safety.

Development status of emergency food products

In recent years, China’s emergency food has developed steadily in terms of shelf life, taste, flavor and safety, but there is still a big gap compared with foreign countries. The shortcomings include:

(1) Low comprehensive performance. The diversity, nutrition and safety of emergency food need to be further strengthened;

（2）Functional development is limited.Due to the lack of practical experience in functional development and the lack of clear supervision and guidance standards, it is difficult for enterprises to carry out effective innovation and development;

（3）The production cost is high.The research and development of key technologies and formulas of emergency food are lagging behind and the added value is low, which leads to its lack of core competitiveness and affects production costs.

With the increasing market demand for serialized, functional, long shelf life and full nutrition emergency foods, continuous optimization, innovation and enrichment of R&D categories have become the key to the development of emergency foods.

With the development of science and technology,Emergency food is paying more and more attention to functions other than satiety and special dietary effects.Adding some ingredients or nutrients with special physiological functions to raw materials can enhance the overall functionality of emergency food.

At present, China’s self-developed "China 05 compressed food" has many functions, such as improving intestinal health, fighting hunger and promoting physical recovery, which greatly improves the efficiency of emergency rescue. Internationally, the United States has successfully developed military functional foods with different functions, such as anti-altitude sickness, anti-fatigue, refreshing the mind, quickly replenishing energy, improving intestinal function, etc. In order to meet the needs of different groups of people, modular foods with mineral modules, vitamin modules and energy modules have also been developed. Japan’s One Table Company has developed an emergency rescue jelly that is beneficial to swallowing, taking into account the people of all ages, so as to meet the needs of the elderly and children for quick nutrition supplement.

High-intensity rescue work in emergency rescue often makes rescuers in a state of physical and mental fatigue and overwork, which leads to inattention, weakened resistance and reduced work efficiency. Therefore,It is necessary to develop emergency food to delay or eliminate fatigue.

Hao Limin and others designed an anti-fatigue beverage formula, which was composed of oligosaccharides, taurine, caffeine, effervescent and other materials. It was processed into effervescent tablets by mixing, granulating, drying, cooling and tabletting. The animal test results showed that the beverage had obvious anti-fatigue effect. Wu Tianyi et al. conducted related research on anti-hypoxia functional fermented products. Through the screening of animal anti-hypoxia tests, it was found that natto and Schizophyllum commune fermented products from microorganisms had significant anti-hypoxia function, which provided a new design idea for the development of anti-hypoxia functional emergency food in the future.

Research status of emergency food storage, transportation and processing technology

In 2003, China began to pay attention to the research on emergency food storage and transportation, and compared with foreign countries, the research started late. In the "storage and transportation" system, food is generally classified and food quality standards are formulated to ensure food quality, facilitate transportation and improve rescue efficiency.The key to the efficient operation of the storage and transportation system lies in making full use of the electronic information platform.Ensure the coordination and mutual supervision of all links, strengthen the contact between emergency food storage and transportation and electronic information enterprises, so as to improve the rapid response ability of emergency food storage and transportation.

At present, there are many researches on food supply chain at home and abroad, covering the supply chain research of various specific food categories, such as fruits, vegetables, grain, etc. However, the research on emergency food logistics is rarely reported. The problems existing in the existing emergency food storage and transportation system in China are mainly summarized as the following four points:

(1) The layout of emergency material reserve centers around the country is unreasonable;

(2) Due to the asymmetric information flow and the large number of relief materials transfer stations in emergencies, the supply imbalance is prone to occur;

(3) Lack of procurement and operation standards for emergency food storage and transportation;

(4) The improvement of food safety evaluation system in the process of emergency food storage and transportation is not perfect, and the efficiency needs to be improved.

Compared with emergency food in developed countries,Domestic emergency foods generally have the problems of short shelf life and low scientific and technological content.The shelf life of self-heated rice and freeze-dried meat products introduced by American Mountain House Company can reach 30 years. The emergency food supply package launched by Wise Company is not only convenient and fast, but also can meet the needs of families, and its shelf life is as high as 25 years. In contrast, the shelf life of emergency food made of domestic Changwo special food by freeze-drying technology is not half as long as it is.

This shows that in the future, the development of emergency food in China should be oriented towards using emerging technologies to maintain the shelf life of food, thus developing a sustainable food value chain and limiting food waste. In order to prolong the shelf life, optimize the taste and promote nutrient absorption,More and more emerging processing technologies have potential application value.

1. Vacuum freeze-drying technology

Vacuum freeze-drying is to freeze the material below the eutectic point and remove the water in the material by sublimation in vacuum environment, so as to achieve the purpose of freeze-drying.It is common in military emergency food, which is used to improve the retention rate of nutrients and maintain the original color and flavor.Vacuum freeze-dried food can be stored at room temperature for a long time without adding preservatives because of its low water activity, and it is convenient to carry and transport.

Yang et al. used hot air drying, hot air vacuum combined drying and vacuum freeze-drying to dry the velvet antler mushroom. The results showed that vacuum freeze-drying could better keep the color and shape of velvet antler mushroom. However, vacuum freeze-drying has the disadvantages of time-consuming, energy-consuming and high cost when used alone, and these problems can be effectively solved by combining with other drying technologies.

Jiang et al. evaluated that freeze-drying combined with microwave vacuum drying was used to dry functional okra snacks. Compared with freeze-dried samples, the combined drying samples had better hardness and brittleness, and the drying time and energy consumption were reduced by about 75.36% and 71.92% respectively. Therefore,Vacuum freezing combined with vacuum microwave drying can be one of the development directions of emergency food drying.

2. Ultra-high pressure technology

Emergency food needs to have a long shelf life to ensure the safety and edibility of food in an emergency. Ultra-high pressure technology uses high pressure force to act on food,Without using high temperature or chemical additives, the shelf life of food can be prolonged by killing microorganisms and inhibiting enzyme activity, while maintaining the original flavor, color and nutrition of food.

Compared with traditional high-temperature treatment, ultra-high pressure technology hardly reacts with covalent bonds of small molecules, and only destroys non-covalent bonds that form the three-dimensional structure of macromolecules, such as hydration, ionic bonds and hydrogen bonds. By inactivating or activating biomolecules such as polysaccharide and protein in food, the product quality can be improved. It is found that soaking and ultra-high pressure pretreatment can increase the content of fast digestible starch and slow digestible starch in rice starch, and reduce the content of resistant starch, thus improving the digestion characteristics of rice.

It should be noted that ultra-high pressure sterilization technology is not suitable for all types of food, and the composition and structure of different foods have different sensitivity to pressure, so it should be tested according to specific products to determine the best treatment scheme.

3. Ultra-fine grinding technology

Ultra-fine pulverization technology pulverizes material particles to micron level by mechanical or hydrodynamic force, thus reducing particle size, changing composition and internal structure, and improving physical and chemical properties of materials. For example, ultrafine grinding canIncrease the solubility of foodSo that it can be easily dissolved with water or other liquids in a short time and quickly prepared into food; In addition, it can alsoEnhance the digestibility of foodSo that it can be absorbed and utilized by the human body in a short time and provide energy quickly, and reduce the burden on the gastrointestinal tract.

Sun et al. treated dehydrated celery stems with superfine grinding technology, and found that there was no significant difference in chemical composition of celery powder with different particle sizes. However, with the decrease of particle size of celery stem powder, its ability of scavenging free radicals was continuously enhanced, which provided a reference for developing fast-dissolving antioxidant functional foods. Zhang et al. treated oat bran by ultra-fine pulverization technology, which improved the surface properties, water holding capacity and swelling capacity of oat bran. The prepared oat bran powder has good physical and chemical properties and oxidation resistance. The data obtained from this study provide theoretical basis for the application of ultra-fine pulverization technology in emergency food deep processing and functional food development.

4. Microcapsule technology

Microcapsule technology is a new packaging technology, which forms a delicate and tough shell around liquid or solid core materials, so that the core materials can be packaged inside the shell. Nutrient fortification is a common technology to improve the nutrition of emergency food. However, many nutrients or functional components such as vitamins, probiotics and antioxidants are prone to degradation, oxidation and volatile loss during production, storage and transportation due to their unstable physical and chemical properties.Using microcapsule technology to embed nutrients and functional components can play a protective role, reduce the influence of external environment such as light, heat and oxygen, and at the same time make them be digested and absorbed when needed.Improve the nutritional value of emergency food.

The results show that adding microencapsulated nutritional fortifier ferrous sulfate to flour can mask the iron smell and avoid the rancidity of oil caused by direct addition. Das et al. successfully prepared anthocyanin extract from purple rice bran with modified glutinous rice starch as wall material by spray drying technology. Microencapsulation showed that the surface of microcapsules was more uniform and smooth than natural starch and modified starch, and the storage stability of microencapsulated anthocyanins was improved. Generally speaking, microcapsule technology provides a new possibility for emergency food, which can improve the taste and prolong the storage time while ensuring nutrition and convenience.

5. Nanotechnology

Nanotechnology can be used to enhance the nutritional value of food and improve its functional components. For example, processing nutrients to less than 100nm by nanotechnology can improve the absorption and utilization rate of nutrients by human body, which can solve the pain point problem that emergency food has low moisture content and is not easily absorbed and utilized by human body.

Nanotechnology can also improve the texture, taste and flavor of food, and be used to remove harmful pollutants in food, such as pesticide residues, heavy metals and harmful chemicals. The special properties of nano-materials enable them to adsorb or catalyze the degradation of these pollutants and improve food safety. However, the application of nanotechnology in food processing is still in its infancy. In the future, when nanotechnology is applied to emergency food, it is necessary to carry out risk assessment and strict supervision on the safety of nanomaterials to ensure the sustainable development of nanotechnology and food safety.

Research status of emergency food packaging technology

Food packaging is a very important processing link that affects the quality of emergency food. As a barrier layer of food, it can protect food from adverse factors such as external environment, microorganisms and pollutants, maintain food freshness, hygiene and safety, and extend its shelf life.Emergency food is usually stored by sealing, modified atmosphere and vacuum packaging. The packaging forms include vacuum aluminum foil packaging, composite nanotechnology packaging and edible film packaging.

In 2016, China developed the world’s first compressed packaging of disaster relief emergency food. By using this pre-foldable compressed packaging food, each logistics vehicle can carry 50% more goods, and the transportation and supply of disaster relief food is more efficient and faster, and the transportation cost is lower. In recent years, in order to prolong the shelf life of food and ensure the quality and safety of food, a variety of functional food packages have appeared in the market, such as antibacterial packaging that inhibits the growth of microorganisms, intelligent packaging that monitors the quality of food, and biodegradable environmental protection packaging.

1. active packaging technology

Active packaging is defined as an intelligent system, which aims to extend the shelf life and improve the quality of food through the interaction between packaging materials and the internal environment of food, so as to meet consumers’ demand for fresh, stable and safe food. Active packaging mainly includes antioxidant packaging and antibacterial packaging. Among them, antioxidant packaging can prevent food from deteriorating by absorbing oxygen or releasing carbon dioxide in the packaging, thus prolonging the shelf life of food. Common oxygen adsorbents include ethylene adsorbent, iron powder, activated carbon, biological enzyme and so on.

Antibacterial packaging mainly inhibits the growth of pathogenic and corrosive microorganisms in food by introducing antibacterial agents, prevents the migration of pollutants, and can also show the leakage of some packaging, thus ensuring food safety. These active packaging technologies provide a broader design idea for future emergency food packaging,So that it is no longer limited to dehydration and drying, and fresh food with better experience can be selected.

2. Nano packaging technology

Nano-technology involves the development of single or multi-dimensional materials less than 100nm. Studies have confirmed that packaging materials with nano-size have large specific surface area and small pores, which can effectively isolate the invasion of external gas, moisture and pollutants, prolong the shelf life of food and reduce the loss of food. In addition, the nano-packaging material has excellent mechanical properties,Can give packaging materials high mechanical strength and durability, and is suitable for use in harsh emergency environments.Therefore, nano-materials are expected to improve the mechanical and barrier properties of emergency food packaging.

On the other hand, the surface of nano-materialsAntibacterial agents such as nano silver can also be added to inhibit microbial growth and reduce food pollution and corruption.Thereby improving the safety of food. Compared with ordinary antibacterial packaging, nano-packaging has stronger anti-corrosion and fresh-keeping function, and is less affected by various extreme weather. In the future, with the continuous development of nanotechnology, nano-packaging materials are expected to provide better protection and quality control for emergency food, and ensure that people can get high-quality food supplies in emergencies.

3. RFID packaging technology（RFID）

RFID is a technology to automatically identify objects by using radio waves. Identification is accomplished by storing serial numbers or other information on a microchip connected to an antenna. Based on wireless communication, RFID can provide real-time information about temperature, relative humidity, nutrition and supplier information in the process of products passing through the supply chain, improve traceability and ensure food quality and safety.

The application of RFID in the field of military food packaging mainly focuses on the storage and transportation stage. By adding RFID tags to military food packaging, the whole process information tracking of military food in the distribution process can be realized through the one-object-one-code identification function of tag chip. In case of emergency, the whole distribution process needs no unpacking, and all the information of the product can be obtained directly by scanning the reader, including the processing information, storage status, transportation information and eating methods of the product, so as to realize the rapid and accurate replenishment of emergency food and improve the speed and accuracy of distribution.

At present, RFID technology has been widely used in the field of civil food packaging, and these experiences can be used for reference in the field of emergency food packaging.Realize the whole process tracking and management of emergency food supply chain, and improve the efficiency and quality of emergency food distribution.

4. Time-temperature indicator technology（TTI）

TTI technology aims to monitor the temperature changes in the food supply chain to predict the changes of food heat-sensitive nutrients and indicate the remaining shelf information of products, thus reducing food consumption and ensuring food safety. The basic working principle of TTI technology is based on the changes of machinery, chemistry, electrochemistry, enzymes or microorganisms, which are usually manifested as visible reactions in the form of mechanical deformation, color development or color movement. It can monitor and record some key parameters in the whole food distribution process,By combining the cumulative effect of time and temperature, the remaining shelf life of the product is dynamically displayed.In order to monitor the cumulative effects of time and temperature on specific products, TTI labels are usually attached to food packaging.

Compared with other temperature monitoring equipment, TTI is small in size and cost-effective, and can reflect the time and temperature changes experienced by food by displaying irreversible effects that are easy to observe. At present, the packaging method of emergency food usually follows the date of production, and the date of production and the time limit for eating are printed on the outer packaging. However, in an emergency situation, the quality and safety of food become particularly important due to the instability of storage and transportation environment. By using TTI technology, the quality and safety of emergency food can be better monitored and controlled, and whether the food has been infringed by the external environment can be found in time, which provides great guarantee for enhancing the safety of emergency food.

5. Edible packaging membrane technology

Edible packaging film refers to the packaging film with porous network structure formed by intermolecular interaction with edible materials such as protein, grain matrix, cellulose and other raw materials, supplemented by edible crosslinking agents, plasticizers and other substances.This packaging material can not only effectively protect food quality, but also reduce environmental pollution.

For example, the grain matrix film is usually made of soybeans, which is safe and harmless. At the same time, the packaged products also have the effect of moisture-proof and moisture-proof, which has a good effect on improving the quality of fresh-keeping foods. Compared with traditional packaging materials, edible packaging film has the characteristics of edibility, and it will not produce packaging waste after use, reducing the negative impact on the environment, making edible packaging film a more environmentally friendly choice.

Edible packaging film has a potential application prospect in the field of emergency food, which can provide good food protection and preservation effects, while reducing the generation of packaging waste. However, when edible packaging technology is applied to emergency food in the future,It is necessary to evaluate the stability and performance of this technology under various environmental conditions.

6. Biodegradable packaging technology

With the continuous development of new technologies and new resources, it is another research direction with great potential to use degradable, energy-saving and emission-reducing packaging materials instead of high-energy and refractory packaging materials. At present, researchers have done a lot of research on degradable packaging materials, and their barrier properties need to be improved when they are used in emergency food in the future.Designed as a biodegradable high barrier material.

Microfiberized cellulose material（microfibrillated cellulose，MFC）It is a biodegradable and widely used high-performance material, which usually comes from green beet pulp, bagasse and soybean skin, and is composed of a large number of cellulose microfibril aggregates. Lavoine et al. reported that microfibrillated cellulose materials and plastic film materials can be combined to form nano-composite packaging materials. Through surface chemical modification, the shortcomings of MFC materials in barrier performance and oxygen barrier performance were solved. However, due to the hydrophilic characteristics of bio-base, the moisture resistance of MFC nanocomposites needs to be further studied and improved.

In the future, intelligent packaging technology can be adopted to optimize the packaging barrier performance and design biodegradable multiple high barrier materials.

Prospect of emergency food development strategy

With the frequent occurrence of natural disasters and the increase of emergency situations, the complexity of rescue site environment and the diversification of rescue people, the development of emergency food in the future needs to introduce advanced scientific and technological innovation technology. For example, the use of Internet of Things technology, intelligent warehousing, scientific packaging technology, etc., to achieve traceability and monitoring of emergency food, improve the quality of emergency food and rescue efficiency. In addition, through the dimensions of raw material screening, formula design, texture reorganization, packaging design, etc., emergency foods in different scenes and target groups are developed to accurately match the nutritional needs of specific groups, increase their acceptance and satisfaction in emergency situations, and improve the quality and effect of emergency response.

1. Future research and development strategy of emergency food

Future emergency food is a kind of food that can quickly and accurately match the nutritional needs of specific people according to different emergency situations, and is convenient for transportation and storage. Based on the research results of emergency food in various countries, the future research and development strategy of emergency food in China can be carried out from three aspects: serialized emergency food, functional emergency food and high-tech application of science and technology.

1) Serialized emergency food.The serial development of emergency food is mainly adjusted and customized according to the dietary needs of different disaster environments and different people, which means developing diversified emergency food products.Including vegetarian, gluten-free, lactose intolerance and other products with special dietary needs to meet the needs of different groups of people.

To carry out the research strategy of emergency food serialization, especially for the needs of special groups such as the elderly, children and pregnant women, the following measures can be taken:

① Reasonable formula design, and develop emergency formula according to the nutritional needs and health status of special groups. For example, for the elderly and pregnant women, attention should be paid to the intake of protein, vitamins, minerals and cellulose; For children, energy requirements and digestibility need to be considered.

② Selection and treatment of ingredients. In order to meet the nutritional needs of the elderly and pregnant women, you can choose ingredients that are easy to chew and rich in protein and fiber; For children, you can choose ingredients that suit their taste and digestive system.

③ Safety and non-allergic guarantee. For pregnant women, children, the elderly and other special groups, it is necessary to ensure that food does not contain substances that may cause allergic reactions, such as peanuts, nuts, alcohol and so on.

④ Product form and packaging design. For the convenience of the elderly and children, it can be designed to be easy to open, chew and digest, and adopt easy-to-operate packaging methods, such as vacuum packaging and canned food.

2) Functional emergency food.The development of functional emergency food will pay attention to the nutritional balance of emergency food and the addition of functional ingredients, so as to meet people’s special needs in emergencies and slow down and eliminate the adverse effects of emergency conditions on human physiology or psychology. exploitationAnti-fatigue, anti-hyperreflexia, anti-anxiety, low temperature tolerance, help sleep, improve constipation and improve immunity.Functional emergency food is the focus of research and development of emergency food at present.

When natural disasters occur, they are often accompanied by water pollution, which will lead to serious gastrointestinal diseases and various infections. Studies have confirmed that bioactive substances can be used to treat some diseases, improve the function of biological systems or resist pathogens. For example, intake of polyunsaturated fatty acids can alleviate intestinal inflammation by changing intestinal flora and enhancing intestinal cell barrier function; Polyphenols such as curcumin can reduce the stress of endoplasmic reticulum, thus reducing the inflammatory response of human intestinal epithelial cells.

Previous studies have shown that intestinal inflammation can be improved not only by drugs, but also by improving dietary intake and increasing the intake of polyunsaturated fatty acids, dietary calcium and vitamin D, thus improving intestinal health.

For example, increasing the dietary fiber content in emergency food can promote intestinal peristalsis and defecation, and prevent constipation and gastrointestinal problems; Adding probiotics or fermented food can improve the balance of intestinal flora, enhance the function of immune system and reduce the risk of gastrointestinal infection; Foods rich in vitamin C and antioxidants, such as citrus fruits and vegetables, help to enhance the immune system function, improve the body’s resistance and reduce the risk of infection.

All in all,By improving the nutritional composition of emergency food, we can alleviate the intestinal problems caused by disasters and help people stay healthy in difficulties.The above measures can help to improve the health effect of emergency food on intestine, but in practical application, the preservation and storage conditions of food need to be considered to ensure the safety and nutritional value of food.

3) The application of scientific and high technology.The introduction of high technology is of great significance to the breakthrough of emergency food in shelf life, nutrition and functionality. In terms of extending the shelf life, methods such as microbial control, vacuum packaging and irradiation sterilization can be adopted. In terms of improving nutrition, nutritional enhancers or functional ingredients can be added to emergency food to enhance its nutritional value.

In terms of improving functionality, high-tech can be used to develop emergency food with specific functions, for example, adding natural antioxidants, humectants, thickeners, etc. to increase the antioxidant capacity, water retention and taste of food. In addition, the use of nanotechnology can improve the texture and taste of food. In the aspect of personalized nutrition enhancement, it can be combined with wearable equipment and sensors. According to the results of physiological testing,(such as lack of potassium or vitamin A)Form personalized demand data, send it to the processing base, and generate special nutritious fortified food made of seasoning liquid and powder through additive manufacturing.

To sum up, serialized emergency foods can meet the dietary needs of different groups of people, while functional foods pay attention to nutrition and special needs, while the application of science and technology and high technology is helpful to improve the quality stability, nutrition promotion and functional supplement of emergency foods. These strategies will promote the further development of emergency food in China in the future and ensure that people can get a safe and balanced food supply in disasters.

2. Emergency food processing storage and transportation strategy

Emergency food is an important relief material for survival under emergency conditions, which requires extremely high production environment and product quality in the supply chain.Therefore, it is necessary to establish an automatic, flexible and digital intelligent supply chain system.The following measures can be taken in the production of emergency food in the future.

1) Introduce intelligent equipment.Through intelligent sorting and cascade utilization technology of raw materials, artificial intelligence combined with deep learning of photoelectric equipment, inductive classification combined with manual assistance, the process parameters in the production process are continuously optimized, and a demand-oriented raw material supply system is established, which can realize the automation of raw material pretreatment and processing, reduce the risk of human subjective errors and cross-contamination, and achieve the effect of improving quality and reducing cost.

2) Build a flexible supply chain.Based on the production requirements of serialization, functionalization and science and technology of emergency food in the future, flexible supply chain can help enterprises optimize resource allocation and utilization, thus reducing costs. For example, according to the production demand of emergency products, enterprises promote the digital transformation of production processes to ensure product quality, efficiency and sustainable production capacity; In addition, through flexible adaptation of intelligent filling and packaging technology, we can quickly switch and adjust product specifications and packaging methods, so that enterprises can quickly respond to changes in market demand and improve emergency rescue efficiency.

3) Establish a digital monitoring system.By introducing precise temperature control technology and RFID technology, the key parameters of the process, such as temperature, humidity, flow rate and speed, can be collected in real time by sensors and monitoring equipment, so that the abnormal situation can be adjusted in time to ensure that the products meet the standard requirements. At the same time, considering that the time and place of emergencies are difficult to predict, the joint application of the Internet of Things and smart packaging technology can track the location, transportation conditions and quality of emergency food in real time, and combine with the logistics management system to carry out intelligent distribution and route optimization in real time according to the changes of disaster situation, so as to achieve the best transportation efficiency and save costs.

Different from ordinary food, the demand for emergency food will be affected by various factors.In the future, the development of emergency food should adopt modular design, that is, food should be grouped and packaged according to function or proportion, so that people can choose and combine different types of food according to their needs.And ensure the balanced nutrition of food. Modular design of emergency food has the advantages of flexible selection, balanced nutrition, easy carrying and storage, and improved emergency response flexibility, which can play an important role in future emergency rescue.

3. The prospect of emergency food safety.

There are some harmful substances such as mycotoxins, heavy metals and allergens in the production, processing and transportation of emergency food.It is of great practical significance to establish an emergency food quality management system, analyze the potential hazards in the production process and continuously monitor them.

In recent years, the rapid nondestructive detection technology of food and food raw material hazards has been widely used in the field of food detection and sorting, such as multi-spectral imaging technology, hyperspectral imaging technology, terahertz spectral imaging technology and so on. Because it is simple, rapid and nondestructive, and can obtain the image and spectral information of the detected substance at the same time, it has potential application prospects in food quality and safety detection, mainly including variety identification, adulteration analysis, quality and hazard detection and a series of applications.

Shi et al. realized the rapid nondestructive detection of Fusarium graminearum and vomitoxin in wheat by multi-spectral imaging technology, and explored a new method for monitoring mycotoxin pollution in wheat production, processing and storage. Liu et al. can monitor zearalenone in corn quickly and non-destructively through multi-spectral imaging combined with machine learning technology.（ZEN）The content of mycotoxin is of great significance to the monitoring of mycotoxin pollution during corn storage and transportation.

Du et al. realized the rapid detection of Staphylococcus aureus enterotoxin B in milk by Raman spectroscopy and stoichiometry, which ensured the safety of milk. Liu et al. quickly determined the concentrations of aflatoxin B1 and benzopyrene in soybean oil by terahertz spectroscopy combined with chemometrics, which provided an effective means for food safety monitoring.

In addition, harmful substances, microbial contamination and chemical residues in food processing seriously affect the quality and safety of food. Therefore, through the rapid detection technology of food hazards in the processing process, it can help manufacturers to respond quickly and reduce or avoid unqualified production operations.

Traditional on-line detection technology often has some shortcomings, such as requiring large equipment and professional operators, and complicated pretreatment.Electrochemical detection methodIt has the advantages of high sensitivity, quick response, real-time monitoring and selectivity. By measuring and analyzing electrochemical signals such as current and voltage in food raw materials, it can be judged whether there are harmful substances.

Gao et al., from the perspective of electrochemical detection, used the electrolyte gate-controlled graphene transistor with two-dimensional graphene as the channel material to realize the rapid identification of the freezing and thawing degree of beef. Mao et al. aim at heavy metal Cr in aquatic products（VI）In order to solve the pollution problem, two-dimensional monatomic iron material is used as the colorimetric sensor of peroxidase to detect Cr in fish quickly and simply.（VI）, and achieved good expected results. Zhu et al. developed a portable aptamer sensor, which has the characteristics of simple operation and portability, and can simultaneously detect T-2 toxin and zearalenone in corn and oat flour, thus realizing the on-line detection of mycotoxins during processing.

In the future, multi-functional electrochemical biosensors and nano-devices can be constructed through electrochemical aptamer joint detection technology, so as to realize the detection of complex hazards such as benzopyrene and allergens in the production process and ensure the safety and stability of food quality in the production process. The flow chart of future emergency food research and development strategy is shown in Figure 1.

Figure 1 Future Emergency Food R&D and Development Strategy Process

conclusion

In recent years, emergencies have occurred frequently in China, and the demand for emergency food has been rising continuously. Especially after the COVID-19 epidemic, China residents’ awareness of food nutrition and safety has been continuously enhanced, and food is required to have certain functionality while meeting basic energy. Therefore, one of the first tasks in the post-epidemic period is to accelerate the research on emergency food.

For the development of emergency food in China, there are many problems in the process of modern rescue, such as insufficient nutrition supply of emergency food, imperfect functional food and difficulty in accurate distribution. Based on this actual situation, the design and development of rescue food with complete nutritional functions, convenient eating and convenient storage and transportation, and the realization of industrial production can not only meet the national emergency relief needs, but also fill the food shortage of emergency relief materials.

By analyzing the development gap of emergency food at home and abroad and thinking about the future development trend of food, this paper puts forward three research and development directions of emergency food, and produces a series of safe, fresh, nutritious and stable emergency food through intelligent supply chain and accurate and efficient detection technology, so as to make it have core competitiveness and greater development space in the market, and gradually open and improve the emergency food market in China.

Acknowledgement: Professor Hao Limin, Institute of Quartermaster Engineering Technology, Institute of Systems Engineering, Academy of Military Sciences, gave advice and help; Support of agricultural eco-environmental protection and quality and safety industrial technology system in Anhui Province.

This article comes from WeChat WeChat official account:Science and technology herald (id: streview), published in Science and Technology Herald, No.19, 2023, by Ning Cheng (Ph.D., School of Food and Biological Engineering, Hefei University of Technology), Liu Changhong and Zheng Lei (correspondent, same as before, professor).