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Nitrogen generators are more and more widely used
Nitrogen generator (nitrogen generator) is based on the principle of pressure swing adsorption, using high-quality carbon molecular sieve as the adsorbent, under a certain pressure, from the air to produce nitrogen. The purified and dried compressed air is added to the adsorber. Pressure adsorption and decompression desorption. Due to the aerodynamic effect, the diffusion rate of oxygen in the micropores of carbon molecular sieve is much higher than that of nitrogen, oxygen is preferentially adsorbed by carbon molecular sieve, and nitrogen is enriched in the gas phase to form finished nitrogen. Pressure to atmospheric pressure, the adsorbent desorbs the adsorbed oxygen and other impurities to achieve regeneration

The role of nitrogen:
Because nitrogen is inert at room temperature and is not easy to breed bacteria, it is widely used in the preservation and storage of beverages, fruits, vegetables, cakes, tea, Chinese herbal medicine, pasta and other foods, which can fully maintain the original color, aroma and taste. The storage quality is obviously better than that of mechanical refrigeration.

Specific applications of nitrogen generators in the food industry:
1. Used before beer, wine, fruit wine, edible oil, pressure canning, bottle blowing, and capping, it can remove oxygen to prevent oxidation, corruption and fading of non-carbonated beverages and edible oils. If a cork stopper is used, it can prevent the inside of the bottle. The cork appears moldy.
2. Puffed and fried food: It can prevent the food from being soft and tasteless with a small amount of water, and the appearance and packaging are good-looking, and it is not easy to be crushed during transportation.
3. Cakes, baked goods, egg yolk pie: After nitrogen filling, it can prolong the preservation time and prevent deformation and crushing during transportation.
4. Milk powder and soybean milk powder: The use of trace nitrogen can prevent or reduce the agglomeration of milk powder caused by long-term extrusion storage.
5. Cereals, nuts, fruits, vegetables: Filling with nitrogen can prevent the harm of pests, and leaving trace oxygen can also reduce the respiration rate of fruits, and the preservation effect is obvious.
6. Candy and small food: mainly suitable for packaging in airtight bags.
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