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Time: 2022-07-07 16:27:40

Author: Jining Xieli Special Gas Co., Ltd.

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Gas is widely used in the food field, liquid nitrogen can make quick frozen food keep fresh longer; Nitrogen can control the oxygen content of dry food so as to prevent discoloration, taste change or

Gas in food, is also used more, especially in packaging, can prevent food oxidation deterioration, play a role in keeping fresh.

1. Frozen foods

The use of liquid nitrogen cryogenic freezing technology, can freeze the storage of aquatic products, so that aquatic products reach the highest level of freshness standard, freezing temperature to -32℃, can be stored and transported, keep for a long time, quality can be maintained for a long time.

2. Dry food

For naturally dried or artificially dried peanuts, tea, milk powder, potato chips and other food, vacuum filled with nitrogen, can control the content of oxygen, to prevent food discoloration, flavor or deterioration phenomenon.

3. Cooked food

In the air conditioning packaging filled with food-grade carbon dioxide, the ratio of 40%-60%, can inhibit oxidation, prevent the growth of bacteria, microorganisms or mold, so as to prevent food mildew.

4. Fish, meat, fruits and vegetables

For this kind of food, it is not only required to prevent rot and deterioration, but also to keep fresh, and microorganisms or bacteria are easy to breed and grow in this kind of food, so it is necessary to achieve the above purpose by filling *** proportion of mixed gas, generally carbon dioxide and oxygen mixed gas.

For fresh meat, carbon dioxide accounts for 20% - 35%, oxygen accounts for 40% - 70%; For seafood, carbon dioxide accounts for 20%, oxygen accounts for 60% - 80%; For fruits and vegetables, carbon dioxide accounts for 1.35%-3.65%, oxygen accounts for 12.5%-17.5%.

5. Eggs

Carbon dioxide is usually used because it is so effective in keeping it fresh.

6. Beer

Neutral nitrogen is usually used because it maintains the physicochemical properties of beer better than acidic carbon dioxide, and liquid nitrogen costs 30% less to produce.

When nitrogen bubbles are injected into beer water to reduce the amount of oxygen in the water, the bubbles create a concentration gradient that forces the dissolved oxygen to diffuse.

7. Canned fruit drinks

Generally filled with liquid nitrogen, on the one hand, can eliminate the air in the tank, on the other hand, can also reduce the thickness of the tank wall, extend its shelf life, is conducive to storage.


Food
Gas is widely used in the food field, liquid nitrogen can make quick frozen food keep fresh longer; Nitrogen can control the oxygen content of dry food so as to prevent discoloration, taste change or
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Tel: 0537-2115207 


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