Now most of the food all need to use the vacuum
packaging machine for packaging, so that you can avoid it to rot in the problems in a certain period of time, so as to ensure that its freshness very well.
So, small cooked food vacuum
packaging machine is to use what kind of the same principle to ensure food quality, fresh reason is introduced in detail as follows.
1, small cooked food vacuum packaging machine 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 C loss, volatile substances in food pigment by the role of oxygen, make the color darker.
So, oxygen can prevent food spoilage.
2, vacuum packaging, in addition to vacuum packaging of oxygen quality features, main and compressive strength, the air resistance, the preservation effect, can make better food for a long time to keep the original color, aroma, taste, shape, and nutritional value.
3 again after vacuum, vacuum packaging, filling the single gas such as nitrogen, carbon dioxide, oxygen, or two, three kind of a mixture of gases.
The nitrogen is inert gas, filling effect, make the bag to maintain positive pressure, in order to prevent the outside air into the bag, bag of food plays a protective role.
carbon dioxide can dissolve all kinds of fat or water, leads into the weak acid carbonate, and corruption have inhibitory activity of bacteria and other microorganisms.
The oxygen is inhibit the growth of anaerobic bacteria breeding, keep fruits, vegetables, fresh and color, high concentration of oxygen to keep fresh meat, its bright red.
the above is the reason why small fresh cooked food vacuum packaging machine, which shows that the main cause of food spoilage is carbon dioxide, oxygen, these two kinds of gas, and the air of nature, the two gases is everywhere, so you need to use vacuum to isolate them, to keep the food fresh.
: wp
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