Vacuum powder packing machine One link is oxygen. The main role is to take advantage of the vacuum-packed oxygen removal to help prevent food spoilage, its principles are relatively simple, due to food mold rot metamorphism mainly caused by microbial activity, and most
The survival of micro-organisms (such as mold and yeast) need oxygen, while the vacuum packaging is the use of this principle, deprived of the oxygen in the bag and food cells, the microbial lost "living environment". Experiments show: When packing bag
≤ 1% oxygen concentration, the growth and reproduction of microorganisms on a sharp decline in oxygen concentration ≤ 0.5%, the majority of micro-organisms will be inhibited and stop breeding. (Note: Vacuum packaging can not inhibit the propagation of anaerobic bacteria and enzyme reaction caused food becomes
Quality and discoloration, and therefore need to combine with other auxiliary methods, such as cold storage, quick-frozen, dehydrated, high-temperature sterilization, irradiation sterilization, microwave sterilization, salted, etc..
Vacuum oxygen removal in addition to inhibit microbial growth and reproduction, another important function is to prevent the oxidation of food, fats and oils in foods containing large amounts of unsaturated fatty acids, the role of oxygen and oxidation, food taste, deterioration. In addition, the oxidation
So that the loss of vitamin A and vitamin C, oxygen unstable substances in food coloring to darken. Deaerator can effectively prevent the deterioration of food to maintain its color, smell, taste and nutritional value. As long as the small vacuum packaging machine can reach a
Given the degree of vacuum, is also the same effect.
The inflatable vacuum packaging machine
Another important link in the vacuum packaging machine is inflated. Vacuum packaging major role in addition to the shelf life of vacuum packaging with deaerator function there are compression, gas barrier, preservation role more effectively to make food in the long-term to maintain the original
Color, smell, taste, shape and nutritional value. In addition, there the many food should not be vacuum packaging, but must use the vacuum packaging. As fragile crunchy food, easy caking food, easy to deform to take the oil food, sharp edges or hardness higher will pierce package
Bagging food. Food after food vacuum packaging machine vacuum packaging bag filling machines pressure greater than atmospheric pressure bags, can effectively prevent the food under pressure crushing deformation, does not affect the appearance of the bags and printing and decorating.
Vacuum packaging in a vacuum and then charged with nitrogen, carbon dioxide, oxygen, a single gas or 2-3 gas mixed gas. Wherein the nitrogen gas is an inert gas, from the filling, so that the bag to maintain a positive pressure in order to prevent the bag outside air into the bag,
Food play a protective role. The carbon dioxide gas can dissolve in various types of fat or water to form a weak acid carbonic acid, can inhibit the activity of mold, spoilage bacteria and other microorganisms. Oxygen can inhibit the growth and reproduction of anaerobic bacteria, keep fruit, vegetables
Freshness and color, high concentrations of oxygen in the fresh meat can retain its bright red.