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重庆济南复合塑料袋包装食品防止变质

来源:http://cq.jingmeisuliao.com/news802456.html 发布时间:2022-5-5 14:43:00

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重庆方便袋包装食品防止变质

Convenience bag packaging food to prevent deterioration

食品变质一般是因为微生物增殖

Food deterioration is generally due to microbial proliferation

所以要从控制微生物的角度来考虑

Therefore, it should be considered from the perspective of controlling microorganisms

1、降低产品中微生物数量,可在包装前通过高温、紫外灯手段实现;

1. Reducing the number of microorganisms in products can be realized by means of high temperature and UV lamp before packaging;

2、抑*微生物的繁殖,通过真空包装可以抑*好氧微生物的生长(铝膜袋强度好于方便袋,但就对产品保质来说没有本质区别);通过低温储存运输亦可抑*微生物的繁殖。

2. Inhibit the propagation of * microorganisms. The growth of * aerobic microorganisms can be inhibited through vacuum packaging (the strength of aluminum film bag is better than that of convenience bag, but there is no essential difference in terms of product quality); Low temperature storage and transportation can also inhibit the reproduction of microorganisms.

此外降低产品的水活度、增加产品压也可以达到延长保质期的目的,如用高盐或高糖溶液浸泡等

In addition, reducing the water activity of the product and increasing the pressure of the product can also prolong the shelf life, such as soaking in high salt or high sugar solution

济南复合重庆塑料袋

方便袋包装食品能久放吗?这主要看是那种方便袋,如果是真空方便袋,那么就可以(一般使用真空包装的食品大概可以存放1-3个月,具体时间得看是什么东西。如果是普通的方便袋,比如我们日常生活中常用的重庆背心袋则不行,为什么呢?

Can food packaged in convenience bags be kept for a long time? This mainly depends on the kind of convenience bag. If it is a vacuum convenience bag, it can be (generally, the food packaged in vacuum can be stored for about 1-3 months, depending on what it is. If it is an ordinary convenience bag, such as the vest bag commonly used in our daily life, it can't be. Why?

真空方便袋的主要作用是除氧,以有利于防止食品变质,其原理也比较简单,因食品霉腐变质主要由微生物的活动造成,而大多数微生物(如霉菌和酵母菌)的生存是需要氧气的,而真空包装就是运用这个原理,把包装袋内和食品细胞内的氧气抽掉,使微生物失去“生存的环境除氧除了抑*微生物的生长和繁殖外,另一个重要功能是防止食品氧化,因油脂类食品中含有大量不饱和脂肪酸,受氧的作用而氧化,使食品变味、变质。此外,氧化还使维生素A和维生素C损失,食品色素中的不稳定物质受氧的作用,使颜色变暗。所以,除氧能地防止食品变质,保持其色、香、味及营养价值。

The main function of vacuum convenience bag is to remove oxygen to help prevent food deterioration. Its principle is also relatively simple. Because food mildew and deterioration are mainly caused by the activities of microorganisms, and the survival of most microorganisms (such as molds and yeasts) requires oxygen. Vacuum packaging uses this principle to pump out the oxygen in the packaging bag and food cells, Loss of microorganisms "In addition to inhibiting the growth and reproduction of microorganisms, another important function of living environment deoxidation is to prevent food oxidation. Because fat foods contain a large amount of unsaturated fatty acids, they are oxidized by oxygen, which makes food taste and deteriorate. In addition, oxidation also causes the loss of vitamin A and vitamin C, and the unstable substances in food pigments are darkened by oxygen. Therefore, deoxidation can effectively prevent food deterioration and maintain its color Aroma, taste and nutritional value.

现在大家知道为什么真空方便袋包装的食品能久放了吧。而普通方便袋是无法做到这点的,事实证明如果使用普通方便袋包装食品不仅不能久放,反而会加速食品的变质,所以在日常生活中建议大家不要用普通方便袋装食品,一是并不能保鲜,二是不健康,要知道我们生活中常用的大多都是料制作,并不能卫生。

Now we all know why the food packaged in vacuum convenience bags can be stored for a long time. Ordinary convenience bags can't do this. Facts have proved that if ordinary convenience bags are used to package food, they can't be put for a long time, but will accelerate the deterioration of food. Therefore, it is recommended not to use ordinary convenience bags in daily life. First, they can't keep fresh, and second, they are unhealthy. You should know that most of the foods commonly used in our life are made of materials and can't be hygienic.

按照国家标准,目前允许直接盛装食品的方便袋都是PE材质的,这样的方便袋是可以盛装食品放在冰箱里的。我们生活中在超,市购买的食品保鲜袋、保鲜膜、一次性手套以及标有食品字样的方便袋基本都属于这一类

According to national standards, at present, the convenience bags that are allowed to directly contain food are made of PE. Such convenience bags can contain food in the refrigerator. In our life, the food fresh-keeping bags, plastic wrap, disposable gloves and convenience bags marked with food purchased in Chaoshi basically belong to this category

总的来说,只要是正规的食品包装方便袋,都可以用来装食物放冰箱里。

Generally speaking, as long as it is a regular food packaging convenience bag, it can be used to put food in the refrigerator.

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