Text/World Network Business Data Analyst Sun Jixia

　

Without consumers, transactions cannot be established. For businesses, data about consumers is very important. At one time, obtaining a consumer report required a long and thorough investigation. With the continuous development of e-commerce and the increasing magnitude of data, various data products serving businesses came into being, and the way to obtain consumer data became more convenient and the cost was lower.

Among them, Alipay data is the largest gold mine in all data. First of all, Alipay data is based on real consumption data, or data generated from each real transaction, which is more reliable than other consumer research data; Secondly, Alipay data not only includes Taobao, but also has a broader user base, which can be said to include all aspects of e-commerce in all fields, and its rich data is unparalleled by any other company.

Therefore, "Tianxia Online Merchant Manager" and Tianxia Online Merchant Data Center jointly launched Alipay Data Compass, starting with the data of merchants outside Taobao, and brought a real online shopping data report of consumers outside Taobao for readers.

In particular, these data samples come from e-commerce websites supported by Alipay in 2012, except Taobao, which has extremely high reference value.

　

Demographic characteristics of online shopping consumers

1. Age distribution of online shopping consumers: Young people are the main force of online shopping.

Amoy e-commerce website accounts for more than 60% of online shopping consumers under the age of 30, and about 10% of online shopping consumers over the age of 40. It can be seen that online shopping consumers are generally young at present.

2. Geographical distribution of online shopping consumers: Online shopping is popular in third-and fourth-tier cities.

At present, consumers of e-commerce websites are mainly distributed in first-and second-tier cities, accounting for 67.9%. According to Alipay’s annual statement, in 2012, the number of online payment users in fourth-tier cities increased by 64%, and the amount of online payment increased by 68%, both exceeding those in first-and second-tier cities. Online shopping has gradually spread from developed areas to less developed areas, and the development speed of small cities can not be underestimated.

The province with the largest number of consumers on e-commerce websites is Guangdong, and Shanghai, Jiangsu, Zhejiang and Beijing also enter the top five. According to CNNIC data, the absolute number of Internet users in Shanghai ranked 13th in China in 2012. Based on Alipay data, it can be seen that the online shopping penetration rate in Shanghai is very high. The distribution of online shopping consumers in the top five provinces accounts for more than 50%, and the top ten provinces account for about 70%, which shows that the regional concentration of online shopping consumers is high.

　

Behavioral characteristics of online shopping consumers

1. Distribution of shopping network age: More than 40% of consumers have been shopping online for less than 2 years.

More than 40% of consumers on the website of Amoy E-commerce are online shopping for less than 2 years, among which the proportion of new consumers in 2012, that is, the proportion of consumers with online shopping for less than 1 year reached 23.4%, with more new consumers.

2. Frequency of purchase: Most consumers only shop online once a month.

70% of e-commerce website consumers only shop online once a month, and the proportion of consumers who shop online more than three times a month is less than 15%. For e-commerce, increasing the online shopping activity of consumers is an important issue.

3. Time distribution of online shopping: Consumers are more enthusiastic about online shopping on weekdays.

Consumers are more enthusiastic about online shopping on weekdays, and the number of online shopping consumers on weekends is significantly reduced. Because consumers can arrange their own time more freely on weekends or holidays, the shopping scene may shift to offline, while on weekdays, consumers do not have a lot of time to go out shopping, so they are more inclined to choose convenient and fast online shopping.

The online shopping time of consumers is consistent with the work schedule, and the shopping time is mainly concentrated in the daytime working hours and the evening at home. Among them, the shopping enthusiasm during the daytime working hours will be higher than that after work at home at night, and the shopping enthusiasm will drop slightly during commuting and eating time. Merchants can adjust their tactics according to the time distribution of online shopping to better meet the online shopping needs of consumers.

4. Customer unit price distribution: More than 70% of consumers’ online shopping customers have a unit price below 200 yuan.

The proportion of consumers whose unit price of e-commerce websites is above 1000 yuan is 9%, but more than 70% of consumers’ unit price of online shopping is below 200 yuan. It can be seen that most consumers tend to buy cheap items in online shopping at present.

5. Shopping preference: Clothing and accessories are everyone’s favorites.

Regardless of men and women, the top two categories that consumers love to buy are clothing and accessories. Household items are the third favorite category for women and the fifth for men, which shows that women love to buy household items more than men. 3C digital products are the fifth favorite category for women and the fourth for men, which shows that men love to buy digital products more than women.

The top two shopping preferences of all ages are clothing and accessories, but the top five shopping preferences will change with the growth of consumers’ age. For example, household items are the fifth category that consumers under the age of 24 prefer to buy, and from the age of 25, household items have risen to the third place; For consumers aged 30-39, maternal and child products have entered the top five, which reflects that most people in online shopping choose to marry late and have children late. Consumers aged 40-49 pay more attention to sports categories, and sports enter the top five shopping preferences in this age group. Consumers over the age of 60 are keen to buy food online, and food ranks among the top five in their shopping preferences. Online food provides convenience for the elderly who are not convenient for young people to move.

via： i.wshang.com

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).

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　　On Wednesday, Eastern Time, US chip stocks experienced a one-day rebound tour, which weakened in an all-round way overnight, and the market was also dragged down. The three major indexes were mixed. In addition, after the release of heavy inflation data, the market also lacked catalysts, and the overall performance was relatively dull.

　　At the close, the Dow Jones index rose 0.10% to 39,043.32 points; The S&P 500 index fell 0.19% to 5,165.31 points; The Nasdaq index fell 0.54% to 16,177.77 points.

　　The yield of US bonds has rebounded, with the benchmark 10-year US bond yield closing at 4.1879% and the 2-year US bond yield, which is most sensitive to the Fed’s policy interest rate, closing at 4.6324%.

　　It may take some time for the market to digest the inflation data, because the last interest rate meeting in the first quarter will be held next week. At this meeting, the bitmap and economic outlook will be announced, when investors will have a clearer expectation for the prospect of interest rate cuts. Before that, if there is no heavy news, US stocks may be more inclined to defensive trading strategies.

　　Some analysts said that although the latest CPI data is a relief, people are still cautious about the basic data. In the short term, the macro narrative around the Fed will be the primary and central issue.

　　Let’s pay attention to the progress of the US presidential election again. According to Xinhua News Agency, according to calculations and reports from many mainstream media in the United States, former President Trump locked in the Republican presidential nomination for the 2024 US presidential election on the 12 th. That is to say, if there is no accident, Biden and Trump will fight for the second time in the presidential election, but the market has not obviously responded to this at present, and the policies pursued by the two are worthy of attention.

　　In terms of enterprises and industries, it is not as dull as the broader market. Tesla, in particular, has been under the headwind so far this year, and was once again slashed by two investment banks overnight. UBS maintained Tesla’s neutral rating and lowered its target price from $250 to $165. Wells Fargo lowered Tesla’s target price from $200 to $120. Tesla fell more than 4% overnight to $169.5, and there was still 30% room for decline from Wells Fargo’s target price.

　　Colin Langan, an analyst at Wells Fargo, reported that the growth of the electric car manufacturer in the core market has slowed down. He downgraded Tesla’s rating to the equivalent of selling. It is expected that Tesla’s sales will be flat this year and will decline in 2025. Langan writes that Elon Musk’s company is a "growth company without growth". He pointed out that in the second half of 2023, sales only increased by 3% compared with the first half, while prices fell by 5%. Analysts have become more and more cautious about Tesla, and the bullish rating ratio has dropped to the lowest since April 2021.

　　In the future, see how Musk will fight back.

　　In terms of AI, Figure, a robot startup company blessed by Amazon and NVIDIA, has released its first robot demo blessed by OpenAI. Although only a neural network is used, it can be used to hand apples to humans, put black plastic bags into frames, and put cups and plates on the drain rack in order to obey human orders. The video shows that the whole operation of the robot is very smooth.

　　In addition, Cerebras Systems, a California semiconductor company, released the third-generation wafer-level AI acceleration chip "WSE-3", whose specifications and parameters are even crazier, and its performance has doubled under the premise of constant power consumption and price. It can train the next generation AI model which is ten times as large as GPT-4 and Gemini, and can store 24 trillion parameters in a single logical memory space without partition or reconstruction.

　　However, it should be noted that the EU passed the world’s first heavy artificial intelligence supervision bill, which is expected to take effect in May.

　　[Hot stocks]

　　Most large technology stocks fell, with Apple down 1.21%, Microsoft down 0.04%, NVIDIA down 1.12%, Google up 0.93%, Amazon up 0.66%, Meta down 0.84% and Tesla down 4.54%.

　　In terms of Chinese stocks, Nasdaq China Jinlong Index rose by 1.04%, Alibaba rose by 0.43%, JD.COM rose by 2.34%, Pinduoduo rose by 3.55%, Weilai Automobile fell by 4.36%, Xpeng Motors fell by 3.10%, LI fell by 3.30%, Blilly fell by 1.42%, Baidu rose by 2.49% and Netease rose by 1.94%.

　　[global index]

　　In European stock markets, the FTSE 100 index rose slightly by 0.31% to 7772 points. The French CAC40 index rose slightly by 0.62% to 8138 points. Germany DAX index fell slightly by 0.02% to 17,961 points.

　　In Asian stock markets, the Hang Seng Index fell slightly by 0.07% to 17,082 points. The index of state-owned enterprises fell slightly by 0.29% to 5932 points.

　　[foreign exchange commodities]

　　The main contract of Brent crude oil closed at $83.95 per barrel, up 2.48%; The main contract of crude oil in the previous period closed at 630.90 yuan per barrel overnight, up 1.64%.

　　Overnight, the Shanghai gold main contract closed up 0.76% to 508.84 yuan per gram.

　　[Highlights]

　　Yellen: US interest rates are unlikely to fall back to the pre-epidemic level. The slowdown in rent growth will push inflation down.

　　As to why the forecast released by the White House on Monday shows that the interest rate forecast in the next few years is significantly higher than that of a year ago, Yellen said that the relevant economic forecast of the White House reflects the current market reality, and she also refuted the concerns about stagflation, insisting that the progress in inflation has not stagnated.

　　Figure launches robot demo blessed by OpenAI big model.

　　Robot startup Figure released its first robot demo blessed by OpenAI big model. Although only a neural network is used, it can be used to hand apples to humans, put black plastic bags into frames, and put cups and plates on the drain rack in order to obey human orders. The video shows that the whole operation of the robot is very smooth.

　　The world’s first AI chip upgrades 4 trillion transistors and 900,000 cores.

　　Cerebras Systems, a California semiconductor company, released the third-generation wafer-level AI acceleration chip "WSE-3", with even crazier specifications and doubled performance under the premise of unchanged power consumption and price. WSE-3 was upgraded to TSMC’s 5nm process again, but the area was not mentioned, but it should be similar. However, the number of transistors continued to increase to an astonishing 4 trillion, the number of AI cores further increased to 900,000, the cache capacity reached 44GB, and the external matching memory capacity was 1.5TB, 12TB and 1200TB. The number of cores and cache capacity have not increased much, but the performance has achieved a leap. The peak AI computing power is as high as 125PFlops, which is 1.25 billion floating-point calculations per second, comparable to the top supercomputing. It can train the next generation AI model which is ten times as large as GPT-4 and Gemini, and can store 24 trillion parameters in a single logical memory space without partition or reconstruction. Four parallel, it can complete the adjustment of 70 billion parameters in one day, and support up to 2048 interconnections, and it can complete the training of Llama 700 billion parameters in one day.

　　UBS and Wells Fargo slash Tesla’s target price

　　On March 13th, local time, Tesla closed down 4.54% to $169.48, and its market value evaporated by about $257 overnight, with a total market value of $539.8 billion. UBS maintained Tesla’s neutral rating and lowered its target price from $250 to $165. Wells Fargo lowered Tesla’s target price from $200 to $120.

　　The European Parliament passed the Artificial Intelligence Act.

　　On March 13th, the European Parliament passed the landmark Artificial Intelligence Act with 523 votes in favor, 46 votes against and 49 abstentions. The European Parliament said that the bill aims to protect basic rights, democracy, the rule of law and environmental sustainability from the impact of high-risk artificial intelligence, while promoting innovation to "build Europe into a leader in this field". The bill will ban some artificial intelligence applications that "threaten citizens’ rights", including biometric classification systems based on sensitive features, as well as capturing facial images from the Internet or closed-circuit television videos to create a facial recognition database. Artificial intelligence that manipulates human behavior or exploits human weaknesses will also be banned.

　　Musk confirmed that Tesla’s German factory resumed operations.

　　Musk issued a document on March 13 that Tesla’s super factory in Berlin has resumed operations and thanked the employees for their support. It is reported that the Tesla German factory was blacked out for a week due to arson. The power company responsible for solving the power outage said later on Monday that the factory had been reconnected to the power grid. It is reported that the factory has about 12,500 employees.

　　It is reported that Samsung Electronics plans to increase the price by 15-20% with downstream manufacturers on the price negotiation of NAND flash memory.

　　Samsung Motor plans to renegotiate the price of NAND flash memory with major mobile, PC and server customers from this month to next month, with a target price increase of 15-20%. After more than a year of oversupply, the price of Samsung Electronics’ NAND flash memory was once flat, so it plans to negotiate with big customers to bring the price back to a reasonable level.

　　GPT-4.5 is suspected to be available. OpenAI official website webpage was indexed by netizens. GPT-4.5Turbo was officially released on Thursday.

　　Search engines such as Bing and DuckDuck Go have indexed the product pages of GPT-4.5Turbo, and netizens speculated that the official release date of GPT-4.5 Turbo might be this Thursday-the anniversary of the release of GPT-4.

　　[financial calendar]

　　Life is easy to get old, but it’s hard to get old. The ninth day of the ninth lunar month is China’s Double Ninth Festival, which is also called "Old People’s Day". Respecting the elderly is the traditional virtue of the Chinese nation. Just after the Double Ninth Festival, Luo Tianjiong, director of the geriatrics department of Nanjing Hospital of Traditional Chinese Medicine, sent nine health guides, aiming at caring for the elderly and caring for their health.
Correspondent Xia Fan Yangzi Evening News/Zi Niu News Trainee Reporter Lu Yanlin

　　1. Pay attention to fall prevention.

　　Due to the increase of osteoporosis and bone fragility, the elderly are prone to fracture, soft tissue injury, psychological trauma and other serious consequences when they fall, and their incidence rate rises sharply with age. Luo Tianqiong said that the elderly need to pay attention to the prevention of falls at home, shoes should be anti-slip, and the light should be bright enough. Once they fall, they should be actively sent to the hospital. 48 hours after the fall of the elderly is the prime time for treatment.

　　2. Reasonable diet and balanced nutrition

　　Light diet, less oil and salt, fresh and hygienic food, and balanced nutrition. The diet is mainly cereal, with a matching thickness. Eat regularly and quantitatively, chew slowly, ensure that there are vegetables in the meal and fruits every day, take in some high-protein foods such as fish, meat and eggs, often drink milk to supplement calcium, and take vitamin D in the sun for 15-20 minutes every day to promote the absorption of calcium, actively replenish water and pay attention to prevent sunburn. Advocate not smoking, drinking less and drinking too much.

　　3. Exercise properly and do what you can.

　　With the growth of age, many elderly people are more and more reluctant to exercise. Although they understand that proper exercise can promote health, what they don’t know is that due to lack of exercise, elderly people often suffer from decreased resistance, muscle atrophy, physical decline, etc. Over time, diseases come one after another. It is suggested that the elderly choose appropriate exercise methods, such as walking, square dancing, Tai Ji Chuan, Baduanjin, etc., and the exercise intensity should be tolerated by individuals.

　　4. Ensure sleep and take a proper lunch break.

　　The sleep of the elderly is shallow and easy to wake up. Half of the elderly in China have sleep disorders. Long-term lack of sleep will cause mental fatigue, dizziness, weakness of limbs, etc. Luo Tianjiong suggested that the elderly should ensure six hours of sleep and take a proper lunch break for half an hour every day, which is conducive to physical and mental health. When insomnia occurs, they can massage points such as Neiguan, Shenmen and Sanyinjiao to help sleep.

　　5. Brush your teeth frequently, wash your hands frequently and take a bath frequently.

　　Brush your teeth in the morning and evening, and rinse your mouth after meals. For the elderly with dentures, brush them clean and soak them in cold water when not in use, and change your toothbrush every three months. Wash your hands and bathe frequently to resist the invasion of bacteria and enhance your resistance.

　　6, keep the stool unobstructed

　　Due to the continuous decline of physical function, the gastrointestinal peristalsis of the elderly will also be very obvious, often manifested as constipation. In view of constipation of the elderly, Luo Tianjiong suggested keeping the habit of regular defecation, drinking more water, not eating laxatives indiscriminately, or massaging the abdomen clockwise around the navel to relieve constipation.

　　7. Don’t stop drugs for chronic diseases.

　　Many elderly people think that chronic diseases such as hypertension and diabetes have no impact on their lives, so they choose to stop taking drugs, but they don’t know that stopping taking some drugs is likely to cause recurrence or "rebound" of the original diseases and even accidents. Luo Tianqiong stressed that if there is a need to stop taking drugs, you must first consult a doctor and gradually stop taking drugs under the guidance of a doctor.

　　8. Keep a good attitude

　　Luo Tianjiong reminded that emotional excitement and bad emotions will affect the physical and mental health of the elderly, keep a calm mind, communicate with people more, and avoid depression, anxiety and mood swings, especially patients with basic diseases such as hypertension, heart disease and cerebral infarction.

　　9. Strengthen self-health management.

　　Director Luo Tianqiong said that it is very necessary for the elderly to have a physical examination. It is necessary to actively prevent the occurrence and development of diseases, so as to achieve early detection, early diagnosis and early treatment. It is recommended that the elderly have a physical examination once a year, and people with basic diseases should have regular physical examinations on the advice of doctors, and be responsible for individuals and their lives.

"When I was here in Dong Tang, I could make money by selling yellow mud …"

Speaking this sentence, Xiong Wenzheng, deputy director of the office of Changsha Tongcheng Holding Co., Ltd., was sitting in the office on the seventh floor of Golden Family. He had been working and living in Dong Tang business circle for more than 30 years. At the peak of Dong Tang Department Store, Xiong Wen, who was in his early twenties, was passionate and splashed ink, writing a magnificent chapter "Four acres of brilliant land" for Dong Tang Department Store. (Originally published in Changsha People’s Congress Magazine)

Today, standing on the 7th floor of Golden Family, looking out from the window, Dong Tang business circle in late autumn of 2020 is still lively. The construction of the subway station has been basically completed, and the streets are crowded with people.

For an old man like Xiong Wen in Changsha, such a scene made him feel a little sentimental.

Dong Tang in the 1980s.

In the south city of Changsha, the Dong Tang business circle once flourished, bearing the memory of old Changsha. There used to be a reputation of "selling yellow mud can make money", and it also suffered from the embarrassment of declining popularity. "The road to the revival of Dong Tang business circle" has always been a hot topic.

What was the prosperity of Dong Tang business circle? Why did it once decline? Where is the road to its revival?

The east wind came overnight? Here once dominated the evolution theory of Changsha’s business.

In the memory of the old Changsha people, anyone who dabbles in the local business community will never forget the lively and beautiful era of "Fighting with Five Tigers in Changsha" …

In January, 1983, Dong Tang Department Store (the original site of Cash Family) located in the northwest corner of Dong Tang was completed and opened. In the following years, the nearby clothing trading building, cloth market and Changsha Workers’ Cultural Palace were completed and put into operation. Around this small area of Dong Tang, the integration of various formats has gradually formed. At that time, it really started an era of Changsha commerce, and the Dong Tang business circle also took shape.

The completed Dong Tang Department Store.

The salesperson of Dong Tang department store is picking up the goods for the customers.

There is a constant flow of traffic and people coming and going near Dong Tang Department Store.

In the commercial map of Changsha at that time, with the Dong Tang business circle raising the war flag in the southeast, Dong Tang Department Store, Shaoshan Road Department Store, Zhongshan Road Department Store, Xiaoyuan Department Store and Friendship Store at that time, ignited a commercial competition war of "five tigers fighting in Changsha".

Xiaoxiang Cinema at that time

Competition has promoted the development of business, but also brought an opportunity to take off.

Around 1995, a number of Changsha local time-honored brands, such as Friendship Mall, Fire Palace and Xinhua Building, successively settled in Dong Tang, which led to the completion of a large-scale upgrade of the business circle. The Dong Tang business circle and the Wuyi business circle echoed each other from a distance and became the main focus of Changsha’s business in the south of the city.

At this point, the Dong Tang business circle has entered a stage of rapid development-

17 years ago, Tongcheng Electric built a flagship store in Dong Tang, which is known as "the first store in Central China".

In 2004, Tongcheng Electric entered Dong Tang as a flagship store, which is also the largest store of Tongcheng Electric in the province.

In 2005, Dong Tang Metropolis Commercial Street opened, which is the first underground commercial street in Changsha with a total length of 624 meters.

In 2012, Friendship Mall achieved a turnover of 1.3 billion yuan with a business area of 27,000 square meters on the upper and lower floors, ranking first in Hunan’s commerce and trade industry.

With the vigorous development of commerce, in this small area of Dong Tang at that time, the Yuhua District Government embodied strategic and forward-looking policy support and planning guidance, and formed a teaching and training industry around the educational resources of Dong Tang business circle; The cultural tourism industry formed around Xiaoying Group has gradually taken shape. These characteristic industries once formed the basic market of Dong Tang business circle outside commerce. This all-round industrial layout once led the evolution and development of Changsha’s commerce …

Internet e-commerce impacts consumers’ shopping habits are quietly changing.

If you go back to more than ten years ago, if you come to Dong Tang at that time, you will see that the popularity is no less than the lively scene of Wuyi Square or Taiping Street today-

Dong Tang Department Store and Friendship Shopping Mall are separated on both sides of the square, where most famous brands that can be bought in Changsha at that time are gathered. And across the intersection, in the bustling metropolis commercial street and Dong Tang clothing exchange building, you can find all kinds of cheap and fashionable clothing accessories.

As an old-fashioned commercial street, the metropolitan commercial street ushered in its heyday after the Millennium.

According to the memories of merchants who used to do business here, people crowded around Dong Tang every day, and many Changsha citizens even bought clothes and swept the goods with big sacks. "Business will not be interrupted from morning till night. At that time, merchants had to go to the clothing building early every morning to grab goods, and there would be no best-selling styles if they were late. In the metropolitan commercial street and Dong Tang clothing exchange building, all fashionable clothes could be found at that time. Many young people go to Dong Tang to go shopping, eat, buy clothes or trinkets after work or after class … "

The once bustling commercial street in Dong Tang metropolis.

At that time, the Dong Tang business circle has become a rival to the May Day business circle. When it comes to Dong Tang business circle, if the admission of Pinghetang, Dong Tang Department Store and other groups is just a prelude, then the opening of Dong Tang Clothing Exchange Building and Metropolitan Commercial Street is the booster for Dong Tang business circle to reach its peak.

However, no one ever thought that after 2012, the decline of Dong Tang business circle came quietly …

With the popularity of online e-commerce shopping and the upgrading of people’s consumption level and business model, the business of underground commercial streets began to decline. Many shops are promoting sales with various discounts, but few people still patronize them, and their business is still very deserted. Some shops have already posted advertisements for subletting.

"At that time, e-commerce developed rapidly, and many popular styles of clothes were also available online, and the price was cheaper. The popularity here suddenly cooled down. Moreover, compared with other emerging business districts with rapid development and complete facilities in Changsha, the shopping environment of underground commercial streets here is not good. The business in other parts of Changsha is developing, but here in Dong Tang is stagnant … "Zhao Xu, the floor supervisor of Friendship Mall, has lived in Dong Tang for 26 years, and he can’t help but be deeply touched when he sees that the business circle in Dong Tang has grown from bustling to deserted.

Wang Yigao, deputy director, researcher and professor of Hunan Institute of Economic Geography, has lived in Dongtang business circle for more than 20 years. He analyzed the dilemma faced by Dong Tang business circle from a more professional perspective. "Internet e-commerce has a greater impact on physical stores, which has changed people’s consumption patterns and habits to some extent; In addition, shops in Dong Tang business district are generally expensive in rent and lack of functional supporting facilities. The times are developing, and citizens’ demand for shopping conditions and consumption environment is constantly improving. As an old business district, Dong Tang basically has no large underground parking lots, no boulevards for leisure walks, and no squares for fun … "

Professor Wang Yigao also said: Compared with the "Fire Palace" and "Taiping Old Street" with a strong sense of history in the May 1 business district, the Dong Tang business district lacks historical precipitation, which affects the development of diversified business patterns; For a long time, the architectural layout of Dong Tang was also lack of planning, and office buildings, factories, institutions, research institutions and commercial complexes were blindly confused, resulting in a chaotic pattern and mixed roads, which did not form a three-dimensional traffic pattern. All along, the businesses in Dong Tang have been fragmented and have not formed a unified alliance. Coupled with the subway construction in Dong Tang in recent years, various factors have caused the rapid decline of Dong Tang business circle in recent years.

Dong Tang Business Circle, Friendship Shopping Mall, Metropolis Commercial Street … These nouns have accompanied a generation of Changsha people through beautiful memories of youth. However, with the development of the times, the "old business circle" has become a lonely term.

When you make a comeback! Night economy and the "revival" assisted by subway lines

Dong Tang business district is bustling with night.

On June 28th, 2020, Changsha Metro Line 3 along Dong Tang was opened.

In the eyes of some insiders, this is a new opportunity and new kinetic energy for the revival of Dong Tang business circle. However, is it enough to solve the grand proposition of "revival of the old business district" just by a subway line?

Wang Lin, a professor at Central South University, once said in an interview with the media that all businesses in the Dong Tang business circle are fragmented, which has led to the current decline. To revitalize the business circle, we must first conform to the natural development of the economy, and then the guidance of the government.

Some people in the industry also pointed out that if the opening of the subway brings good times to the revival of Dong Tang business circle and Dong Tang’s own location is favorable, then it is necessary to find the "harmony between people" in the revival of business circle, that is, to face the shortcomings of business circle directly, and enterprises and the government should come up with some effective ways to break the situation.

Dong Tang Metropolitan Commercial Street

On July 15th, 2020, Liu Suyue, deputy secretary of Yuhua District Committee and district head, led a team to investigate the surrounding environment of Dong Tang business circle, and visited Golden Family, Xiaoxiang Film Group and other enterprises, and then organized some business representatives from Dong Tang business circle to hold a symposium on the theme of "How to revive Dong Tang business circle".

At the symposium, representatives of Xiaoxiang Film Group, Fire Palace, Golden Family, Pinghetang, SINOMACH International, Tongcheng Electric Appliances, Xinhua Building and other enterprises launched a heated discussion around the "revival" of Dong Tang business circle.

The person in charge of Hunan Xiaoxiang Cultural Industry Investment Co., Ltd. proposed that the Dong Tang business circle is in urgent need of transformation and upgrading! With the arrival of the economic development tide in experience tourism, Xiaoxiang Film Group wants to build an experience city of film and television culture, attract more people to know about film and television culture, and turn it into a "meeting room of film and television culture" in Hunan, so as to drain the business circle and provide a new engine for its development, thus driving the development of the whole business circle.

The relevant person in charge of Friendship Mall said that during the epidemic, the mall launched a series of live online activities, which was a great success. The sales performance in May and June increased by about 3% compared with last year. Through practice, it is found that the influence of live broadcast sales is very strong, so the next step will continue to deepen online channels, and at the same time, fashion brands that young people love will be introduced one after another.

Think about how to transform and upgrade, how to attract consumers, especially young consumers, and how to strengthen linkage, dislocation management and information sharing between businesses?

This is the thinking put forward by Liu Suyue, deputy secretary of Yuhua District Committee and district head, to Dong Tang business circle at this meeting.

Today’s Dong Tang business circle

At the meeting, the specific arrangements made by the Yuhua District Government for the development of Dong Tang business district are also ready to come out: good guidance, good planning, scientific positioning, focusing on Dong Tang’s characteristics and advantages; Plan more activities related to consumption festival according to time nodes, and guide businesses to strengthen linkage consumption and related consumption; It is necessary to take the lead in setting up business alliance institutions and strengthen the linkage between enterprises and governments and between enterprises; With the help of Tik Tok and other new media, strengthen the publicity of Dong Tang business circle; It is necessary to improve the basic supporting facilities of the business circle, strengthen the rectification of advertising spaces, improve the lighting at night, and solve the problem of parking difficulties through the sharing of parking spaces, so as to create a good market environment for the business circle.

There are indications that Dong Tang, the "old business district", seems to have signs of oriental wind. With the comprehensive promotion of Changsha’s "Night Star City" consumption festival and the launch of Yuhua District’s "Slow Nightlife, Meet You" activity, the Dong Tang business circle reappeared after the epidemic.

Dong Tang business circle in the future, just like a young man gearing up, is coming back with a new attitude, which is expected to reproduce the "paradise for shopping and leisure" in Changsha people’s mind.

Text | Li Jie

Poster | Wan Tao

Editor | Fan Jin

Source | Netease Hunan

　　The Central Meteorological Observatory issued a blue rainstorm warning at 18: 00 on August 29:　

　　It is estimated that there will be heavy rains in parts of southern Gansu, southwestern Shaanxi, western Sichuan Basin, central and western Yunnan, northern Heilongjiang, central Inner Mongolia and southeastern Tibet from 20: 00 on August 29th to 20: 00 on 30th, among which there will be heavy rains (100-200mm) in western Sichuan Basin and western Yunnan. Some of the above areas are accompanied by short-term heavy rainfall (the maximum hourly rainfall is 20 ~ 50 mm, and the local area can exceed 60 mm), and there are strong convective weather such as thunderstorms and strong winds.

　　　

　　Defense guide:　

　　1. It is suggested that relevant departments should do a good job in emergency defense against rainstorm according to their responsibilities;　

　　2. Cut off the outdoor power supply in dangerous areas and suspend outdoor operations;　

　　3, do a good job in urban and farmland drainage, pay attention to prevent possible disasters such as flash floods, landslides and mudslides.　

　　(Editor: Wang Meili)　

　　CCTV News:The Party’s Report to the 20th CPC National Congress has drawn a grand blueprint for the future development of China. Delegates to the congress said in succession that in the new journey, we should be upright and innovative, move forward bravely, put the major decision-making arrangements made by the 20th National Congress of the Communist Party of China into action, see results, and create new great achievements with new great struggles.

　　Deputies believe that the Party’s Report to the 20th CPC National Congress is our Party’s political declaration and program of action that unites and leads the people of all ethnic groups throughout the country to uphold and develop Socialism with Chinese characteristics in the new era and new journey, and further points out the direction of the cause of the Party and the country.

　　The brilliant achievements in the past ten years are inspiring, and the bright future of Chinese modernization is desirable. Representatives from all walks of life unanimously said that it is the right time to forge ahead in a new journey and struggle, and we should unite and struggle for building a socialist modern country in an all-round way and promoting the great rejuvenation of the Chinese nation under the guidance of the spirit of the 20th Party Congress.

　　Ke Xiaohai, representative of the 20th National Congress:I am very excited, and there is a kind of motivation that makes me feel anxious to return to my hometown, lead our party member people to work hard, and plan our rural revitalization industry, so that our people can really enjoy the dividends brought by the spirit of the 20th National Congress.

　　Wang Xiujie, representative of the 20th National Congress:I must, as the Supreme Leader General Secretary requested in Report to the 20th CPC National Congress, enhance my ability to think boldly and be good at fighting, and help the early realization of the goal of building a world-class science and technology power with more excellent scientific research achievements.

　　Chen Ziliang, representative of the 20th National Congress:After the meeting, let the spirit of the 20th Party Congress take root in the sub-branches, innovate and serve Guangdong-Hong Kong-Macao Greater Bay Area, Pilot Zone and Qianhai Free Trade Zone, and improve the quality and efficiency of manufacturing financial services.

　　Zhao Shiqing, representative of the 20th National Congress:In the future, the twin-city economic circle in Chengdu-Chongqing region will work together to build world-class advanced manufacturing clusters such as aerospace, rail transit and power generation equipment, and become an important growth pole for high-quality development in the country.

　　Ye Ling, representative of the 20th National Congress:In the future, we should improve the level of medical services, enhance the balance of medical resources, and protect the physical and mental health of the people.

　　Bai Mei, representative of the 20th National Congress:Next, we will focus on the concept of green, intelligent and low-carbon construction, and strive to create a beautiful and livable living space for the people.

　　Gersila &bull, the representative of the 20th National Congress; Rehati:We all ethnic groups will hold together like pomegranate seeds, make concerted efforts and work hard to create a better future, and continue to struggle for the goal of the second century under the leadership of the Party.

Bid for 350 thousand? Guangzhou Auto Show will be unveiled soon.

According to the previous news, Huawei will also launch a model between M7 and M9 to fill the gap in the market, that is, Wenjie M8. The M8 will be unveiled at the Guangzhou Auto Show in November, and recently the rendering of the car was exposed on the Internet.

This set of renderings comes from the appearance declaration of Celestial in China Patent Network. As the manufacturer of Jiejie automobile, Celestial announced the appearance patent drawing of the brand-new model at this time, so we judged that this automobile is Jiejie M8.

From the exterior view, the closed air intake grille of the new car has a ring-shaped light strip, which is the first time that the ring-shaped light strip element appeared in the car family of the car, which is completely different from the previous car series.

The new car uses a hidden door handle, and the lidar on the roof indicates that the new car will still provide Huawei ADS 3.0 advanced intelligent driving system. At the same time, on the left and right sides of the car body, there is an energy-supplementing cover plate, which means that the new car can be powered by oil and electricity and will provide extended-range power.

As for the price, the price of the M8 product in the world is positioned before M9, and the same price will be between 249,800 and 469,800. We predict that the price of the M8 product in the world will be 359,800 yuan, which is a better choice for car buyers who can’t meet the appearance design of M7 and reach the consumption level of M9 at a more reasonable price.

Since its debut, FAW-Volkswagen B9 has quickly won enthusiastic response from the market with its diversified configuration options, especially its 1.5T high-efficiency power system, which shows more outstanding performance compared with the one launched in the same period, and has become the first choice in the hearts of many consumers. So, what remarkable changes has this Magotan B9 brought? How impressive is its actual performance? Let’s explore together. Magotan B9 also performs well in sound insulation, and its body structure and the use of sound insulation materials effectively isolate the noise inside the car. Both urban driving and high-speed cruising can provide drivers and passengers with a quieter ride environment. In contrast, Passat Pro’s sound insulation effect is slightly insufficient.

Body size comparison, performance of Magotan B9

The body size of Magotan B9 is 4990*1854*1487mm, and the wheelbase is 2871mm. Compared with the old models, the size of Magotan B9 is a big circle, which belongs to the mainstream level in the same class, and the interior space has also been greatly improved.

Larger air intake grille and exquisite chrome decoration

On the front face, the new Magotan B9 adopts a larger air intake grille design, and the chrome decoration also highlights the exquisiteness of the vehicle, which is closely connected with the whole China Net. The diversion grooves and fog lamps on both sides of the bottom form a sports kit, which is also the difference between the Magotan B9 and the old models. In addition, the front enclosure is decorated with a honeycomb grid and a diffuser is designed to enhance the sense of movement of the vehicle. Coming to the side of the car body, the new Magotan B9 is not much different from the design of the old models in terms of lines. The sharp waistline runs from the front of the car to the rear of the car, lengthening the visual effect of the vehicle. The side skirt is decorated with chrome plating, so you don’t have to worry about bumping when the vehicle is driving in bad road conditions. In terms of the rear end, the Magotan B9 model has not changed much, and the penetrating taillight components have high recognition after lighting. The rear enclosure is also designed in a sporty way to show the difference between Magotan B9. The rear enclosure is decorated with chrome, and the diffuser decoration is designed in the middle, and the exhaust pipe decoration is cancelled.

Central control led by big screen, analysis of new Magotan B9 configuration.

After arriving in the car, the interior design of Magotan B9 hasn’t changed much, but the details have been adjusted. The automatic comfort type and the automatic enterprising type adopt an 8-inch central control screen, while the automatic enjoyment type and the automatic luxury type adopt a 9.2-inch central control screen. Unfortunately, the wireless charging of the mobile phone is changed to optional. A penetrating air outlet is added to the center console to enhance the sense of interior grade, and a roller shutter is also added to the cup holder area, with little change in other aspects. The steering wheel adopts a flat-bottomed design, which increases the sports atmosphere of the interior. Magotan B9 comes standard with tire pressure reminder, cruise control, automatic parking, uphill assist, engine start and stop, LED daytime running lights, automatic air conditioning, rear seat air outlet, temperature zone control, heating, electric folding, automatic folding after locking, etc. As a joint venture medium-sized car, this configuration is relatively rich.

Strong performance of 1.5T and 2.0T engines.

Magotan B9 is equipped with 1.5T and 2.0T engines, matching with a 7-speed dual-clutch gearbox. Among them, the 2.0T turbocharged four-cylinder engine has a maximum power of 220 HP and a peak torque of 350 Nm. Equipped with a 7-speed wet dual-clutch gearbox, it provides four driving modes: economy, comfort, sports and personalization to meet different driving needs. The official acceleration time of 100 kilometers is 7.4 seconds, while the comprehensive fuel consumption of WLTC is only 6.71L/100km, which shows excellent performance and low fuel consumption. Therefore, the overall power and acceleration feeling of Magotan B9 is still excellent. In addition, the comprehensive fuel consumption of the 1.5T model is 5.85 liters per 100 kilometers, which has more obvious advantages in fuel economy.

Generally speaking, this car is still very good. MagotanB9 and Magotan B9 are national family cars. The new generation of Magotan B9, which has just been listed, seems to stand out from the crowd. The novel design and larger interior space also make it a little fresh. Of course, Magotan B9 still has the aura of "national sedan", which is probably the only place where Magotan B9 is higher than other models. What do you think of this car? Some netizens teased: There is no national sedan outside Magotan B9.