The History of Vacuum Bags

Vacuum packaging technology originated in the 40's, since the 50's plastic film was successfully applied to commodity packaging, vacuum packaging technology has been developed rapidly. The level of packaging reflects to some extent the level of science and technology and the degree of affluence in a country. The research and application of vacuum packaging technology in China is still in its infancy.

In 1962, Ordal proposed that impermeable membranes inhibited the growth of pathogenic microorganisms, and that packaging fresh meat could extend its shelf life.

Second, Baltzer believes that vacuum-packed fresh meat than aerobic packaging fresh meat shelf life is long reasons are:

(1) The total number of microorganisms increases slowly under anaerobic conditions;

(2) decay and reduced mucus;

(3) After storage, the amount of final microorganisms in vacuum packaging is less than that in aerobic packaging. This shows that the oxygen film vacuum packaging fresh meat, when the oxygen into carbon dioxide, oxygen membrane can block the outside oxygen into the packaging, so vacuum packaging can extend the shelf life of fresh meat.

In 1970, Pierson et al. proposed that vacuum packaging create an "ecosystem" for selecting the type and level of microorganisms. In 1974, SCOPA first applied MAP (a package that vacuums and then fills a percentage of the mixture) to package meat products.

Fourth, Pesis et al. (1986) put forward that vacuum packaging is the best way to maintain the quality and hardness of persimmon fruit preservation. It can be seen that the development and popularization of storage and preservation technology has been paid more and more attention by producers, operators and consumers.

Another part of the equipment required for vacuum packaging is packaging containers, packaging containers of more types, there are plastic, plastic and paper, aluminum foil and other composite composite composites, glass bottles, metal containers and hard plastic, the selection of packaging containers should be based on the nature of vacuum packaging food, such as canned food is applied glass bottles or metal cans, such as Chinese herbal medicine with aluminum foil or plastic and so on. Although there are many types of container materials in vacuum packaging, the most common is plastic film.