Vacuum packaging machine 'rational'

vacuum representative & other; Nothing & throughout; , is what we call a vacuum, within a specified space under an atmospheric pressure gas state are collectively referred to as vacuum. Vacuum degree of thin gas called vacuum ( degreeofvacuum) , usually expressed as pressure value. Vacuum and vacuum packaging actually is not completely, USES the vacuum packing technology of food container vacuum degree in the 600 - usually 1333Pa。 So, also called vacuum packaging vacuum packaging or exhaust packaging.

when the concentration of oxygen in the vacuum bags & le; 1%, microbial growth and reproduction rate fell sharply, oxygen concentration & le; 0. 5%, most microbes will be reined in and stop breeding. So, the main purpose of the vacuum packing bag is 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 vacuum packing is using this principle, the packaging and food within the cell oxygen smoke, lose micro physical & other; The survival of the environment & throughout; 。 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 effectively prevent food spoilage, maintain its color, aroma, taste and nutritional value.

the place on put together is narrated, summarizes the mechanism of action of vacuum bags mainly lies in: 1, relative to ordinary packaging method, vacuum bags to reduce the items take up space. And has the advantages of moistureproof and dustproof prevent bacteria. 2, some accident is greatly reduced and the possibility of loss. 3, vacuum packaging to reduce the oxygen content of the packing, prevent the deterioration of food per side, extend the shelf life of food.