The hottest food packaging development trend in th

Development trend of food packaging in the United States and Japan

at present, countries all over the world attach great importance to food preservation technology

Showa chemical company of Japan is developing a variety of fresh-keeping materials, one of which is to infiltrate a mineral concentrate with phosphoric acid as raw material into absorbent paper bags, and use this paper container to pack vegetables and fruits. During transportation, vegetables and fruits can get nutrition from the mineral concentrate. The company also developed a film made of high-purity calcium phosphate mixed with polyethylene film with xuniti subsidiary. Practice has proved that calcium phosphate can absorb ethylene and carbon dioxide gas, inhibit the decomposition of chlorophyll, maintain freshness, and open up broad prospects for the cooperation between the two countries

recently, a kind of quick cooked food packaging, which can avoid soaking food with water vapor when it is hot, has been listed in Japan. The packaging material is composed of polypropylene film, polyethylene film, paper and aluminum foil. When heated, the water vapor will condense on the surface of the film and then be absorbed by the paper, so as to achieve the purpose of avoiding soaking food. In recent years, the application of aseptic packaging of food, which is the most popular in the world, is not only limited to fruit juice and fruit juice drinks, but also expanded to packaging milk, mineral water and wine. Experts believe that due to the limitations of refrigeration equipment, means of transportation and storage facilities, developing countries can prevent the loss of data caused by sudden power failure and forgetting to save the disk; Aseptic packaging is more suitable

the United States and Japan have also made many gratifying achievements in the research and development of edible packaging films. The cereal film developed by cremson University in South Carolina in the United States uses corn, soybean and wheat as raw materials to make corn protein into paper, which can be used for the packaging of sausage and other foods. After use, it can be used for poultry consumption or as fertilizer. The collagen film developed by "Natick" in the United States is made of animal protein collagen, which has the characteristics of high strength, water resistance and good performance of isolating water vapor. It is soluble and edible when thawing and cooking, and dry packaged meat food will not change its flavor. The film developed by Mitsubishi man-made fiber company in Japan is made of natural polysaccharides extracted from red algae. It is translucent, tough and has good heat sealing property

in addition, there are some edible protein films, such as milk protein film, casein white film, zein film load sensor force measurement, and the newly developed edible packaging with antibacterial function, such as adding lysozyme and other antibacterial components to zein or soybean protein amniotic membrane, which can control the growth of pathogens in food and food corruption caused by microorganisms

in the printing of food packaging, the United States and Japan advocate the use of flexographic printing technology. This pollution-free printing technology has the characteristics of no benzene, heavy metals, non-toxic and tasteless products, no toxic gas emissions, and no odor residue in printing materials. At present, 80% of product packages in the United States use this printing technology