Food vacuum sealing machine working process is as follows:
vacuum chamber cover, vacuum pump, vacuum chamber began pumping air into vacuum state, bags in vacuum at the same time, the vacuum gauge pointer to rise to the rated vacuum (
By the time relay ISJ control)
Vacuum pump stop working, and the vacuum stopped.
In a vacuum, at the same time the work of two work the 3-way magnet valve (IDT, vacuum heat sealing, thermal in situ.
food vacuum sealing machine is the main function of oxygen, is beneficial to prevent food spoilage, its principle is simple, because food metamorphism causing mold mainly caused by the activity of microorganism, and most microorganisms (
Such as mold and yeast)
Survival is need oxygen, and using this principle, the packaging and food within the cell oxygen smoke, lose microbial survival environment.
Experimental results show: when the concentration of oxygen in the packaging & le;
1%, microbial growth and reproduction rate fell sharply, oxygen concentration & le;
0.
5%, most microbes will be reined in and stop breeding.
(
Note: vacuum packing can inhibit anaerobic bacteria breeding and enzyme reaction caused by food metamorphism and discoloration, so still need to combine with other auxiliary methods, such as cold storage, frozen, dehydrated, high temperature sterilization, irradiation sterilization, microwave sterilization, salting, and so on.
)
