Application prospect of the hottest aseptic packag

2022-10-22
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The application prospect of aseptic packaging in dairy industry

with the increasing demand for dairy products, the packaging of dairy products has become one of the concerns of people. Aseptic packaging technology is complying with the requirements of the development of the times, becoming a rising star in the packaging industry, and has a broader development space in the dairy industry

introduction to sterile packaging technology

sterile packaging technology is a packaging technology that fills and seals in a sterile environment under the condition that the packaging, the packaging, and the packaging auxiliary equipment are sterile. Aseptic packaging was born in the 1940s, applied in the 1960s, developed in the 1970s, and by the middle of the 1990s, dozens of foreign companies have produced various aseptic packaging equipment. At present, aseptic packaging accounts for more than 65% of liquid food packaging in foreign developed countries, and is growing at a rate of more than 5% every year. From the initial introduction of foreign complete aseptic equipment production lines and packaging consumables to independent research and development, China's aseptic packaging technology has gone through a development process from scratch and gradually matured

the main advantages of sterile packaging are:

1 For the sterilization of packaged food, the best method can be selected according to the characteristics and requirements of the food itself. Its purpose is to give the best protection to the color, flavor and nutritional components of the food. The composite packaging materials and vacuum state can prevent the products from the invasion of light, gas, peculiar smell and microorganisms, so that the food does not need to add preservatives, transportation and storage do not need refrigeration, and can extend its storage period, which is convenient for storage, transportation and sales

2. The food and containers used for aseptic packaging are sterilized separately to avoid the reaction between food and packaging containers and reduce the penetration of container components into food

3. It is suitable for automatic continuous production, with high production efficiency, energy saving and labor saving, which is conducive to reducing production costs. Taking beverages as an example, it is calculated that the cost of soft packaging is only a quarter of that of metal cans, and 97% of the total weight after filling is beverages

4. Aseptic packaging is in line with the current trend of environmental protection packaging. Sterile packaging materials are made of paper, which are easy to degrade and conducive to environmental protection. Because aseptic packaging has the above advantages, this technology has been widely used in food, beverage, dairy products and other industries. Today, the vast majority of milk and more than half of fruit juices in developed countries use sterile packaging

Application of aseptic packaging technology

the application and development of aseptic packaging technology in dairy industry is inevitable. With the rapid development of dairy products market, the processing technology and packaging requirements of dairy products have been correspondingly improved. At present, the sales of "Yili", "Mengniu", "Sanyuan", "Guangming" and other brands in China's market are the largest. Taking Shanghai "Guangming" as an example, its annual sales account for only 9% of the market, about 1.5 billion yuan. The main reason is that fresh milk storage, packaging and transportation equipment can't keep up. The market is eager for a packaging method that can effectively extend the shelf life and maintain the flavor and nutrition of products. It is undoubtedly an ideal choice to use plastic composite film for aseptic packaging

at present, aseptic packaging accounts for only 10% of dairy products in China, while developed countries account for 65%. In addition, the per capita share of milk in China is 5.1 kg, while the world's per capita is 38 kg. According to China's tenth five year plan, by 2005, China's per capita milk share will reach 10 kg, with a total output of 13.5 million tons; By 2030, China's per capita share of milk will reach 25 kg, with a total output of 42.5 million tons. At the same time, the state has listed aseptic packaging of liquid milk as a priority development project, and invested 2billion yuan to support the development of liquid milk industry. It can be seen that aseptic packaging of liquid milk in China has great development space and bright market prospects

the application of aseptic packaging technology in dairy industry has its unique advantages. The main advantage of aseptic packaging is that it can retain the original nutritional components and flavor of food to the greatest extent and reduce losses under the condition of ensuring sterility. It can conveniently use ultra-high temperature instantaneous sterilization method to disinfect the food before packaging, while other packaging methods are difficult to do this. Because dairy products have the characteristics of high preservation requirements, short processing cycle and difficult storage and transportation, they have very high requirements for packaging technology. Ultra high temperature instant sterilization technology (UHT) is used to solve the problem of difficult transportation, storage and preservation of liquid milk. At present, this technology has been widely used in developed countries for fresh milk processing: heat the milk to more than 135 degrees Celsius, keep it for only a few seconds, and then quickly drop to normal temperature, and then fill and seal it with 6-layer paper aluminum plastic composite sterile material under sealed sterile conditions. It can maintain the nutritional composition of milk to the greatest extent, kill bacteria, solve the problem of keeping fresh, and make people enjoy nutritious and delicious milk more conveniently and safely

sterile packaging recycling

The recycling and reuse of aseptic packaging technology has aroused widespread concern in society. In today's society, which advocates the concept of environmental protection, we must take recycling and reuse as an important topic to study. At present, liquid milk packaging mainly includes Tetra Pak and Kangmei bag for ultra-high temperature sterilized milk packaging, Tetra Pak pillow for ultra-high temperature instant sterilized milk packaging, roof bag for sterile milk packaging, and plastic bags made of sterile composite film, such as bailibao. As for the aseptic packaging of Tetra Pak, its main recycling technology has the following three points:

1 Hydraulically regenerated pulp technology: separate the pulp from Tetra Pak to produce recycled paper; The plastic and aluminum components in Tetra Pak are extruded into particles, which become good raw materials for the production of plastic and aluminum products

2. Plastic wood technology: Tetra Pak itself contains high-quality paper fibers and plastics. Crushing and extruding them to produce plastic wood products is to make the best use of everything and low cost. Indoor furniture, outdoor gardening facilities, industrial trays, etc. produced from waste Tetra Pak are widely welcomed and praised by consumers

3. Caile board technology: the waste Tetra Pak is directly crushed and hot pressed to make Caile board. Caile board can be made into a variety of products, especially peel boxes, which are beautiful, durable and low-cost

market prospect of sterile packaging

at present, with the continuous updating of sterilization technology, sterile packaging technology has gradually got rid of the traditional mode and developed towards a new sterilization method. For example, the combination of high-intensity ultraviolet light and low concentration hydrogen peroxide is used to sterilize packaging containers. The use of ultraviolet sterilization is beneficial to accelerating the green building revolution and sterilizing packaging containers. The effect of ultraviolet sterilization or hydrogen peroxide sterilization is limited when used alone, and the combination of the two has excellent sterilization effect. Using hydrogen peroxide with a concentration of less than 1% and high-intensity ultraviolet light, the bactericidal efficacy at room temperature is 100 times that of the two alone. As peroxide points out the direction for comprehensively promoting the adjustment of the industrial structure of national new materials and the transformation and upgrading of manufacturing industry, the concentration of hydrogen is very low, and no measures need to be taken for the residual hydrogen peroxide, avoiding the problems of high temperature and long time required for traditional hydrogen peroxide sterilization. The rational use of new sterilization technology is the development direction of sterile packaging

aseptic packaging technology not only has a good development space in the dairy industry, but also has made great progress in other industries. The technical equipment of a large number of large backbone enterprises in China's beverage industry has approached or reached the international advanced level. In the future, the beverage industry has a great demand for packaging equipment, especially the filling equipment for non aerated beverages such as tea and fruit juice, paper plastic aseptic packaging and PET bottle aseptic filling equipment, which has a good market prospect; There is also a large market demand for fruit juice beverage pre-processing equipment, fruit juice freezing and concentration devices, diversified packaging equipment and ultra-high temperature sterilization equipment. Therefore, aseptic packaging technology has a broader development prospect

source: China Food News

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