真空食品包装复合胶袋里面的食物能储存多久

How long can the food in the vacuum food packaging compound plastic bag be stored

真空袋能储存多久。包装袋尺寸是怎么样的，接下来小编要讲的东西，可以分成三个点：主要功能是去除氧气、防止食品氧化、充气的环节，

How long can the vacuum bag be stored. What is the size of the packing bag? The next thing I want to talk about can be divided into three points: the main function is to remove oxygen, prevent food oxidation and inflate,

1、主要功能是去除氧气。事实上，真空包装机的保存原理并不复杂。重要的一个环节是从包装好的产品中去除氧气。只有包装袋和食品中的氧气被泵出，然后包装被密封以防止空气进入，从而不会发生氧化，从而达到保鲜的效果。真空包装机的使用和使用有助于防止食品腐败。其原理表明，由于食品霉变主要是由微生物的活动引起的，大多数微生物生存需要氧气，真空包装就是利用这一原理将氧气从包装袋和食品细胞中抽出，从而导致微生物失去生存环境。真空包装不能抑制由厌氧菌繁殖和酶反应引起的食品腐败和变色，因此需要与其他辅助方法相结合，如冷藏、速冻、脱水、高温、辐照、微波、盐腌等。

1. The main function is to remove oxygen. In fact, the preservation principle of vacuum packaging machine is not complicated. The most important step is to remove oxygen from packaged products. Only the oxygen in the packaging bag and food is pumped out, and then the packaging is sealed to prevent air from entering, so that oxidation will not occur, so as to achieve the effect of fresh preservation. The use and application of vacuum packaging machine help to prevent food corruption. Its principle shows that food mildew is mainly caused by the activities of microorganisms, and most microorganisms need oxygen for survival. Vacuum packaging uses this principle to extract oxygen from packaging bags and food cells, resulting in the loss of living environment for microorganisms. Vacuum packaging can not inhibit food corruption and discoloration caused by anaerobic bacteria reproduction and enzyme reaction, so it needs to be combined with other auxiliary methods, such as cold storage, quick freezing, dehydration, high temperature sterilization, irradiation sterilization, microwave sterilization, salt pickling, etc.

真空食品包装

Vacuum food packaging

2、防止食品氧化。因为油和脂肪食品含有大量不饱和脂肪酸，它们在氧气的作用下被氧化，这使得食品味道变坏。此外，氧化还会导致维生素a和维生素c的损失，食品色素中的不稳定物质会受到氧气的影响，从而使颜色变暗。因此，脱氧可以有效防止食物变质，并保持其颜色、香味、味道和营养价值。

2. Prevent food oxidation. Because oil and fatty foods contain a lot of unsaturated fatty acids, they are oxidized under the action of oxygen, which makes the food taste bad. In addition, oxidation will also lead to the loss of vitamin A and vitamin C. unstable substances in food pigments will be affected by oxygen, which will darken the color. Therefore, deoxidation can effectively prevent food deterioration and maintain its color, flavor, taste and nutritional value.

3、充气的环节。真空充气包装的主要功能不仅是去除氧气和确保质量，还能抵抗压力、阻挡气体和保持新鲜。它能长期有效地保持食物原有的颜色、香味、味道、形状和营养价值。此外，许多食物不应该用真空包装，而必须用真空包装。例如脆而易碎的食物、易结块的食物、易变形的除油食物、边缘锋利或硬度高的食物，这些食物会刺破包装袋等。食品真空包装机对食品进行真空充气后，包装袋内的充气压力大于包装袋外的大气压力，可以有效防止食品在压力下被挤压变形，不影响包装袋的外观和印刷装饰。

3. Inflation link. The main function of vacuum inflatable packaging is not only to remove oxygen and ensure quality, but also to resist pressure, block gas and keep fresh. It can effectively maintain the original color, flavor, taste, shape and nutritional value of food for a long time. In addition, many foods should not be vacuum packed, but must be vacuum packed. For example, crisp and fragile food, caking food, deformable degreasing food, food with sharp edges or high hardness, which will pierce the packaging bag, etc. After the food vacuum packaging machine vacuum inflates the food, the inflation pressure in the packaging bag is greater than the atmospheric pressure outside the packaging bag, which can effectively prevent the food from being extruded and deformed under pressure and does not affect the appearance and printing decoration of the packaging bag.

真空充气包装在真空后再充入氮气、二氧化碳、氧气单一气体或2-3种气体的混合气体。其中氮气是惰性气体，起充填作用，使袋内保持正压，以防止袋外空气进入袋内，对食品起到一个保护作用。二氧化碳气体可以溶解在各种脂肪或水中，形成弱酸性的碳酸，并具有抑制微生物如霉菌和腐败细菌的活性。氧气具有抑制厌氧菌生长和繁殖、保持水果和蔬菜的新鲜度和颜色的功能，高浓度的氧气可以保持鲜肉鲜红色。

Vacuum inflatable packaging is filled with nitrogen, carbon dioxide, oxygen, single gas or a mixture of 2-3 gases after vacuum. Nitrogen is an inert gas, which plays the role of filling and keeps the positive pressure in the bag, so as to prevent the air outside the bag from entering the bag and protect the food. Carbon dioxide gas can be dissolved in various fats or water to form weakly acidic carbonic acid, and has the activity of inhibiting microorganisms such as molds and spoilage bacteria. Oxygen can inhibit the growth and reproduction of anaerobic bacteria and maintain the freshness and color of fruits and vegetables. High concentration of oxygen can keep fresh meat bright red.

以上就是为大家介绍的有关济南复合塑料袋的详细介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以的态度,为您提供服务http://www.jingmeisuliao.com

The above is the detailed introduction of Jinan composite plastic bag. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://www.jingmeisuliao.com