The hottest food packaging technology in the Unite

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Food packaging technology in the United States and Japan at present, countries around the world attach importance to food preservation technology. Japan Zhaohe Chemical Co., Ltd. is developing a variety of fresh-keeping materials, one of which is to concentrate a mineral with phosphoric acid as raw material into absorbent paper bags. Next year, the life science department will increase our market promotion by participating in industry exhibitions, launching networking seminars and holding various offline customer activities. During transportation, Vegetables and fruits can be supplied with nutrients from mineral concentrates

the company has also jointly developed a high-purity calcium phosphate film mixed with polyethylene film with Asahi nitrate subsidiary. Practice has proved that calcium phosphate can absorb ethylene and carbon dioxide gas, inhibit the decomposition of chlorophyll and maintain freshness. Recently, a quick cooked food package that can avoid soaking food with water vapor when heated 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 avoid soaking food. In recent years, the most popular aseptic food packaging 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 the impact testing machine is accurate in this energy range. Due to the limitations of refrigeration equipment, transportation means and storage facilities, it is more suitable to develop and use it in bacteria packaging in developing countries. There are also many gratifying achievements in the research and development of edible packaging film. The cereal film developed by cremson University of 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 packaging sausage and other food. After use, it can be used for poultry or as fertilizer. The collagen film developed by "Natick" in the United States is made of protein collagen, which is the knowledge object detected by the pipeline of the dynamic ring stiffness tester. It has the characteristics of high strength, good water resistance and good performance of isolating water vapor. It can be dissolved and edible when thawed and cooked, and will not change its flavor when used to pack meat food

the film developed by Mitsubishi man-made fiber company of 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, caseinase, zein film, etc., as well as the newly developed edible packaging with antibacterial function, such as adding lysozyme and other antibacterial components to the zein or soybean protein single film, which can control the growth of pathogenic bacteria in food and food corruption caused by microorganisms. In the printing of food packaging materials, flexographic printing technology is adopted. This pollution-free printing technology has the characteristics of no benzene and heavy metals, non-toxic and tasteless products, no toxic gas emission, and no odor residue in printed materials. At present, 80% of product packages in the United States use this printing technology

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