PP Gas Flush Food Packaging MAP Tray

Frozen fresh meat vacuum shrink packaging and modified atmosphere packaging

Frozen fresh meat refers to the cooling treatment of livestock and poultry after slaughtering according to the health and quarantine standards, so that the temperature of fresh meat drops to 0 to 4 °C within 24 hours, and can continue to maintain 0 in the subsequent processing, transportation and sales links. Meat foods at a temperature of ~4°C. Commonly used fresh-keeping packaging methods include vacuum shrink packaging and modified atmosphere packaging. Tipack®, a total solution provider of fresh packaging, provides shrink film, shrink bag, barrier bags, plastic casing, vacuum bag, skin film, lidding film thermoforming film, fruit cup, plastic tray, packaging machine, etc. product and service.
The fresh-keeping function of vacuum shrinkable product packaging is mainly accomplished by using the barrier and shrinkage properties of the product packaging. It can prevent the oxygen in the air from contacting with fresh meat, thereby preventing the growth and reproduction of bacteria, preventing the discoloration of fresh meat, and alleviating the deterioration of fresh meat. The shrinked product packaging is close to the fresh meat, which is equivalent to the "second skin" of the fresh meat, and can play an excellent protective function.
Modified atmosphere product packaging is a kind of product packaging method that fills the gas into the packaging material with barrier properties according to the corresponding specific gravity to change the environment in the product packaging, so as to inhibit the growth and reproduction of bacteria and increase the shelf life. The gas used in the packaging of frozen fresh meat modified atmosphere products is generally oxygen, carbon dioxide, nitrogen or a combination of gases according to the corresponding specific gravity. Oxygen prevents the growth and reproduction of anaerobic bacteria and keeps fresh meat bright red; carbon dioxide prevents mold infection and the growth and reproduction of aerobic bacteria; nitrogen is mainly used as filling gas in the packaging of modified atmosphere products. In addition, the packaging of modified atmosphere products should also take into account the specific gravity of various gases and the permeability of packaging materials.
environment) to achieve ideal results.

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