Food vacuum bag and the application of pneumatic flexible packaging bags of food

by:Kolysen     2020-06-21
Is the main purpose of food vacuum bag oxygen, to help prevent food spoilage, its principle is simple, because food metamorphism causing mold mainly caused by the activity of microorganism, and most microorganisms ( Such as mold and yeast) Survival is need oxygen, and the vacuum packing bag is using this principle, the packaging and food within the cell oxygen smoke, lose microbiology & other The survival of the environment & throughout; 。 Experimental results show: when the concentration of oxygen in the packaging & le; 1%, microbial growth and reproduction rate fell sharply, oxygen concentration & le; 5%, the majority of microbes will be reined in and stop breeding. ( Note: vacuum packing can inhibit anaerobic bacteria breeding and enzyme reaction caused by food metamorphism and discoloration, so still need to combine with other auxiliary methods, such as cold storage, frozen, dehydrated, high temperature sterilization, irradiation sterilization, microwave sterilization, salting, and so on. ) Vacuum deaeration besides inhibiting microbial growth and reproduction, another important function is to prevent the oxidation of the food, because the oil kind food contains a lot of unsaturated fatty acid, by the effect of oxygen oxidation, sour food, deterioration. In addition, the oxidation also make vitamin A and vitamin C loss, food pigment in the volatile substances by the role of oxygen, make the color darker. So oxygen can effectively prevent food spoilage, maintain its color, aroma, taste and nutritional value.
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