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Vacuum Machine Prevent Food Oxidation
- Sep 13, 2017 -

Vacuum machine consists of vacuum pump, vacuum chamber, sealing strip, plexiglass board lid, airbag, solenoid valve and other components. The main role of vacuum packaging is to remove the oxygen and air in a variety of gases in order to help prevent food spoilage, to prevent food oxidation. Vacuum inflatable packaging of the main role in addition to the vacuum packaging, with the addition of oxygen quality, fresh-keeping function, the main also has the pressure, crushing, gas, preservation and other functions, can more effectively keep the original color of food, fragrance, taste, shape and nutritional value.

The main role of vacuum packaging is to remove oxygen and air in various gases, in order to help prevent food spoilage, its principle is also relatively simple, because the food spoilage is mainly caused by microbial activity, and most microorganisms (such as mold and yeast) survival is required oxygen, and vacuum packaging is the use of this principle, Remove the oxygen from the inside of the bag and the food cell, so that the micro-material loses its "living environment". The experimental results show that when the oxygen concentration in the bag is ≤1%, the growth and propagation rate of microorganism drops sharply, and the oxygen concentration ≤ 0.5%, most microorganisms will be inhibited to stop breeding. (Note: Vacuum packaging can not inhibit the reproduction of anaerobic bacteria and enzyme-induced food spoilage and discoloration, and therefore need to be combined with other ancillary methods, such as refrigeration, frozen, dehydration, high-temperature sterilization, irradiation sterilization, microwave sterilization, salt pickling and so on. )

In addition to inhibiting the growth and reproduction of microorganisms, the other important function of vacuum oxygen removal is to prevent food oxidation, because the oil food contains a large number of unsaturated fatty acids, by the role of oxygen oxidation, so that food stale, spoilage, in addition, oxidation also makes vitamin A and C loss, food pigments in the unstable substances in the role of oxygen, so that the color dimming. Therefore, the removal of oxygen can effectively prevent food spoilage, maintain its color, aroma, taste and nutritional value. Has a very secret business value.

Vacuum inflatable packaging of the main role in addition to the vacuum packaging, with the addition of oxygen quality, fresh-keeping function, the main also has the pressure, crushing, gas, preservation and other functions, can more effectively keep the original color of food, fragrance, taste, shape and nutritional value. In addition, a lot of food is not suitable for vacuum packaging and must adopt vacuum inflatable packaging. such as crisp fragile food, easy to caking food, easy to deformation of oil food, sharp edges and corners or hardness will pierce the packaging bag of food. After the food is packed in vacuum, the pressure of the packing bag is strong in the outer atmosphere of the packing bag, which can effectively prevent the crushing and deforming of the food and the appearance of the packaging bag and the printing decoration.

Vacuum inflatable packaging In the vacuum after filling into nitrogen, carbon dioxide, oxygen single gas or two or three of gases mixed gas. The nitrogen is inert gas, filling the bag, so that keep positive pressure in order to prevent outside the bag of air into the bag, the food play a protective role. Its carbon dioxide can dissolve in all kinds of fat or water, lead to acidic weak carbonic acid, inhibit mold, corrupt bacteria and other microorganisms activity. Its oxygen can inhibit the growth and reproduction of anaerobic bacteria, keep fruit, vegetables fresh and color, high concentration of oxygen to keep fresh meat in its bright red.