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Can food be sterilized by irradiation after skin packaging?


Today, a customer asked me, can food be sterilized by irradiation after vacuum skin packaging?After searching for relevant information on irradiation sterilization and combining the characteristics of vacuum skin packaging film for food, the Information Department of Fengyuan Skin Packaging Network concluded that salmon seafood, cold fresh meat, beef and other foods can be sterilized by irradiation after vacuum skin packaging, without any adverse effects on the skin packaging itself and the packaged food.

 

   

 

 

Concept of irradiation sterilization for food skin packaging

Irradiation (or irradiation) sterilization of salmon, seafood, aquatic products, cold meat, and beef uses a certain dose of ultra-short wave ionizing radiation to sterilize food (including raw materials), and irradiates packaged foods with gamma rays or beta rays produced by radioactive isotopes such as Cobal, T 60, and cesium 157.It delays the development of certain physiological processes (germination and maturation) in fresh foods, or performs insecticidal, disinfectant, sterilization, and moldproof treatments on foods to prolong storage time and stabilize and improve food quality.The commonly used rays in food sterilization are χ rays, γ rays, and electron rays.Electrons are mainly generated by electron accelerators using χχ-ray generators, and gamma rays are mainly produced by radioactive isotopes, commonly used radioactive isotopes such as 60 co and 137 cs.Gamma rays have strong penetrating power.They are suitable for internal disinfection of various packaged foods and finished foods.Electron rays have weaker penetrating power.They are generally used for sterilization of small packaged foods or frozen foods, especially for surface sterilization of foods.The temperature of sterilization is basically the temperature of the product itself, and the raw materials used in the skin-on packaging film are imported from the United States. One of the great characteristics of this material is that it has excellent chemical resistance. Therefore, after irradiation, it has no adverse effect on the skin-on packaging film itself.While vacuum packaging the packaged food, its chemical properties will not change after irradiation, so it has no effect on the irradiated salmon seafood aquatic products, cold fresh meat beef and other foods.

Type of irradiation sterilization for food skin packaging

1) Irradiation for complete sterilization

Irradiating sealed foods with 25-50 KGy can kill all pathogenic microorganisms in damaged foods and achieve disinfection effects.Before irradiation, salt and sodium triphosphate can be added to the food to reduce water loss and improve the radiation's ability to kill bacteria.The irradiated sterilization method completely treats beef, chicken, ham, pork, sausage, fish, and shrimp, which can be stored for more than 2 years at normal temperatures (21°C-38°C) and maintain good color and taste.

2) Irradiation disinfection

A dose of 4-10 kGy can effectively inhibit the growth of microorganisms and pathogenic microorganisms that are harmful to public health.It can effectively remove Salmonella from high-protein foods such as meat, dairy products, and egg products that are vacuum-packed with skin-on packaging.When irradiated with 5 kGy, it can reduce the number of Salmonella by hundreds of millions and kill Salmonella in deep-frozen foods.

3) The irradiation sterilization of food skin packaging is safe and reliable.

More than 40 years of practice in the world has proved that irradiated foods vacuum-packed have never been found to contain any residual radioactive substances, and can maintain their original quality, color, and aroma.In the United States, irradiated foods with skin-on packaging have been proven to be harmless to the human body after being eaten by astronauts in space.The advantage of irradiated foods is that they can remain fresh for several years after irradiation, not only sterilizing, but also inhibiting and delaying the metabolism of the food itself, eliminating the root cause of food deterioration.Irradiation sterilization can save a lot of energy. Any food with skin-on packaging can be stored in ordinary packaging after irradiation sterilization, which can save a lot of materials and energy for production, freezing, and refrigeration. It can also replace some refrigerators with irradiation preservation.

 

 

After the above analysis, it is completely possible to use a correct and reasonable dose of radiation sterilization for food skin packaging.If you have any further questions, please consult the experts of Fengyuan Skin Packaging.Fengyuan Skin Packaging, a well-known enterprise in Guangdong skin packaging, creates aesthetic value of skin packaging.

 

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Can food be sterilized by irradiation after skin packaging?

Today, a customer asked me, can food be sterilized by irradiation after vacuum skin packaging?After searching for relevant information on irradiation sterilization and combining the characteristics of vacuum skin packaging film for food, the Information Department of Fengyuan Skin Packaging Network concluded that salmon seafood, cold fresh meat, beef and other foods can be sterilized by irradiation after vacuum skin packaging, without any adverse effects on the skin packaging itself and the packaged food.