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Vacuum Machine The Main Role Is To Prevent Oxygen From Food In Order To Prevent Deterioration
- Oct 20, 2017 -

Life can be seen everywhere in the vacuum packaging of food, after the packaging of food looks both health, and good-looking, let us look at the specific role of the vacuum machine.

The main role of vacuum packaging is to remove oxygen, in order to help prevent food deterioration, the principle is relatively simple, due to food mold rot deterioration caused by microbial activities, and most microbes (such as mold and yeast) is the need for oxygen Of the vacuum packaging is the use of this principle, the bags and food cells within the oxygen removed, so that the loss of micro-material "living environment." Experiments show that when the oxygen concentration in the bag is less than or equal to 1%, the growth and reproduction speed of the microorganism decreases sharply. When the oxygen concentration is less than or equal to 0.5%, most microorganisms will be inhibited and stop breeding. (Note: Vacuum packaging can not inhibit the proliferation of anaerobic bacteria and enzyme reactions caused by food deterioration and discoloration, and therefore need to be combined with other auxiliary methods, such as cold storage, quick freezing, dehydration, high temperature sterilization, irradiation sterilization, microwave sterilization, salt Pickled, etc.)

Vacuum deaerator In addition to inhibiting the growth and reproduction of microorganisms, another important function is to prevent the oxidation of food, because the fat food contains a large number of unsaturated fatty acids, the role of oxygen and oxidation, so that food taste, deterioration, in addition, Vitamin A and C loss, food pigment in the unstable material by the role of oxygen, so that the color darkens. Therefore, the oxygen can effectively prevent food deterioration, to maintain its color, smell, taste and nutritional value.

The main role of vacuum inflatable packaging In addition to vacuum packaging with the oxygen barrier function, there are mainly pressure, gas barrier, preservation and other effects, can more effectively keep the food long-term color, smell, taste, shape and Nutritional value. In addition, there are many food is not suitable for vacuum packaging and must be vacuum inflatable packaging. Such as crispy fragile food, easy to agglomerate food, easily deformed oil products, sharp edges and corners or higher hardness will puncture the food bags and so on. After the food is vacuum-filled, the inflatable pressure in the bag is greater than the atmospheric pressure outside the bag, which can effectively prevent the deformation of the food from crushing and does not affect the appearance and printing decoration of the bag.

Vacuum inflatable packaging in a vacuum and then filled with nitrogen, carbon dioxide, oxygen, a single gas or two or three kinds of gas mixture. The nitrogen is an inert gas, from the filling effect, so that the bag to maintain a positive pressure to prevent the bag outside the air into the bag, the food play a protective role. Its carbon dioxide can be dissolved in various types of fat or water, lead to acid weak carbonic acid, inhibit the fungus, corrupt bacteria and other microbial activity. Its oxygen has the effect of inhibiting the growth and reproduction of anaerobic bacteria, keeping the freshness and color of fruits and vegetables, and the high concentration of oxygen can keep the fresh meat fresh.