Can irradiation sterilization be used to sterilize food after close fitting packaging?
2023-09-12
Today, a customer asked me, can irradiation sterilization be used to sterilize food after close fitting packaging? After searching for relevant information on irradiation sterilization and combining with the characteristics of vacuum SMT packaging films for food, the Fengyuan SMT Packaging Network Information Department has concluded that after vacuum SMT packaging for salmon, seafood, seafood, cold fresh meat, beef, and other foods, irradiation sterilization can be used to kill bacteria, without any adverse effects on the SMT packaging itself or the packaged food.
Concept of irradiation sterilization for food packaging
Irradiation (or irradiation) sterilization of salmon, seafood, aquatic products, cold meat, and beef is the sterilization of food (including raw materials) using a certain dose of ultra-short wave ionizing radiation and the production of radioactive isotope Cobal γ Ray or β Radiation irradiated packaged food. T 60 and cesium 157. Handle. Delaying the development of certain physiological processes (germination and maturation) in fresh food, or treating food with insecticides, disinfections, sterilization, and mold prevention to extend storage time, stabilize, and improve food quality. The commonly used radiation in food sterilization includes χ Radiation γ X-rays and electron rays. Electrons are mainly generated by electron accelerators χχ- Ray generator, gamma ray, mainly composed of radioactive isotopes, commonly used radioactive isotopes 60 co and 137 cs. Gamma rays have strong penetration. Suitable for internal disinfection of various packaged and finished foods. The penetration of electron rays is weak. Generally used for sterilization of small packaged or frozen foods, especially for surface sterilization of food. The sterilization temperature is basically the temperature of the product itself, and the food packaging film is made of imported raw materials from the United States. This material has a great characteristic of good chemical resistance, so after irradiation, it has no adverse effect on the packaging film itself. While vacuum packaging the packaged food, its chemical properties do not change during irradiation, so it has no impact on packaged foods such as salmon, seafood, and cold fresh meat and beef.
Types of irradiation sterilization for food close fitting packaging
1) Complete irradiation sterilization
Irradiation of sealed food at 25-50 KGy can kill all pathogenic microorganisms in damaged food, achieving disinfection effects. Before irradiation, salt and sodium triphosphate can be added to food to reduce water loss and improve the ability of radiation to kill bacteria. After complete irradiation sterilization, beef, chicken, ham, pork, sausages, fish, and shrimp can be stored for more than 2 years at normal temperatures (21 ℃~38 ℃), maintaining good color and taste.
2) Radiation disinfection and sterilization
A dose of 4-10KGy can effectively inhibit the growth of microorganisms and pathogenic microorganisms that are harmful to public health. It can effectively eliminate Salmonella harmful to high protein foods such as meat, dairy products, and egg products that have undergone vacuum mount packaging. When irradiated with 5KGy, it can reduce the number of Salmonella by hundreds of millions and kill Salmonella in deep frozen food.
3) The irradiation sterilization of food packaging is safe and reliable.
Over 40 years of practice in the world have proven that vacuum packaged irradiated food has never found any residual radioactive substances, which can maintain its original quality, color, and aroma. In the United States, food irradiation in close fitting packaging has proven to be harmless to humans after being consumed by astronauts in space. The advantage of irradiated food is that it can remain fresh for several years after irradiation, not only killing bacteria, but also inhibiting and delaying the metabolism of the food itself, eliminating the root cause of food spoilage. Irradiation sterilization can save a lot of energy. Any food packaging that has undergone irradiation sterilization can be stored in ordinary packaging, which can save a lot of materials and energy for production, freezing, refrigeration, etc. It can also be used to replace some refrigerators with irradiation preservation.
After the above analysis, it is completely possible to use the correct and reasonable dose of irradiation sterilization when packaging food in close proximity. If you have any other questions, please consult Fengyuan Body Fit Packaging Marketing Expert. Fengyuan Body Fit Packaging, a well-known enterprise in Guangdong, creates aesthetic value for body fit packaging.
2023-09-12
2023-09-12
2023-09-12
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