The key of the vacuum bag is the oxygen tension, which is also caused by a short-term and vacuum packaging. This fact is because the transformation of food moldy and rotten is mainly caused by the movement of microorganisms, which is conducive to avoid food spoilage, and the life of most microorganisms (such as mold and yeast) is the necessary oxygen, which makes the food and oxygen bag smoke in the cell, and microorganisms lose their "living environment".

　　真空包装意味着更少的限制厌氧细菌生长和酶反应引发食品变形和变色,真空脱气除了抑制微生物繁殖的发展,与其余的帮助共同分离方法,如制冷、脱水、低温、辐照、微波、冻结,咸,另一个神经功能是为了避免食品氧化,氧化的氧的影响,因为油腻的食物含有大量的不饱和脂肪酸，使食物变酸、变质。

　　Vacuum packaging means less restriction on the growth of anaerobic bacteria and enzyme reaction to cause food deformation and discoloration. In addition to inhibiting the development of microbial reproduction, vacuum degassing can help with other separation methods, such as refrigeration, dehydration, low-temperature sterilization, irradiation sterilization, microwave sterilization, freeze-thaw, saltiness, and the other nerve function is to avoid the influence of food oxidation and oxidized oxygen, Because the greasy food contains a lot of unsaturated fatty acids, which makes the food sour and bad.

　　你知道真空包装如何防止细菌生长吗?

　　Do you know how vacuum packaging can prevent bacteria from growing?

　　实验证实:当包装袋内的氧气浓度小于1%，氧气浓度小于0.5%时，微生物的发育率和繁殖率急剧下降，大多数微生物会受到真空紧袋和末端繁殖的抑制。

　　The results show that when the concentration of oxygen in the packaging bag is less than 1%, and the concentration of oxygen is less than 0.5%, the growth rate and reproduction rate of microorganisms decrease sharply, and most of them will be inhibited by vacuum tight bag and end propagation.

　　此外，食品色素中的不稳定物质受到氧气的影响，使颜色变暗，氧化还会造成维生素A和维生素C的损失，为了去除氧气可以有效地避免食品变质，坚持其色、香、味和营养价值。

　　In addition, the unstable substances in food pigment are affected by oxygen, which makes the color dark. Oxidation will also cause the loss of vitamin A and vitamin C. in order to remove oxygen, it can effectively avoid food deterioration and adhere to its color, fragrance, taste and nutritional value.