The food vacuum packaging machine is to extract all the air in the packaging container and keep it in a highly decompressed state. The scarcity of air is equivalent to a hypoxic effect, so that microorganisms have no living conditions, and it is important to achieve fresh fruit and no disease. purpose. At present, practical applications include vacuum packaging in plastic bags, aluminum foil packaging, glassware and composite packaging. The packaging material is selected according to the type of the product. Because the fruit is a fresh food, it is still breathing, and high hypoxia will cause physiological diseases. Therefore, the use of food vacuum packaging machines for fruits is relatively rare.
Food vacuum packaging machine is a package that protects products from environmental pollution and prolongs the shelf life of food, thereby improving the value and quality of products. Vacuum packaging technology is polyester, polyethylene plastic film. Since it has been successfully applied to product packaging, vacuum packaging machines have developed rapidly. In the areas of people's life and work, a variety of plastic vacuum packaging abounds. Lightweight sealed, fresh-keeping, anti-corrosion and rust-proof plastic vacuum packaging can be found everywhere from food to medicines, knitwear, and precision products to metal processing plants. And its laboratories, etc. Plastic vacuum packaging is widely used, which has promoted the development of plastic vacuum packaging machines and put forward higher requirements.
The main function of food vacuum packaging machine is to remove oxygen, which is helpful to prevent food spoilage. The working principle is relatively simple, because food mold decay is mainly caused by the activities of microorganisms. Most microorganisms need oxygen for survival. Vacuum packaging is used The basic principle is to remove the oxygen in the packaging bag and the food cells, making the micro-organisms lose their living environment. Vacuum packaging cannot inhibit the deterioration and discoloration of food caused by the proliferation of anaerobic bacteria and enzyme reactions. Other auxiliary methods Combined.