On the market for fresh food with vacuum packaging and vacuum packaging.
In order to preserve food, in addition to the control of ambient temperature and sterile, more important is to control food suitable gas environment, choose appropriate packaging materials, vacuum packaging bags can achieve the desired purpose in preservation.
The characteristics of the vacuum packing bag: (
1)
Can eliminate oxygen for meat food, vacuum packaging, which can inhibit the growth of mold, aerobic bacteria growth, inhibiting lipid oxidation, control of food spoilage, achieve the goal of keeping fresh, with good quality.
To convert the oxygen into carbon dioxide, the accumulation of carbon dioxide can inhibit false single spore bacteria breeding, have the effect of fresh beef.
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2)
In terms of fruit hydrophobic, vacuum packing reduce oxygen content in the bag, fruit thin through anaerobic respiration produces carbon dioxide, and at the same time maintain a certain humidity, this kind of low oxygen and high carbon and high humidity environment, can effectively reduce the fruit transpiration, hydrophobic reduce fruit thin respiration, reduce ethylene formation and nutrient consumption, finally achieve the purpose of preservation;
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3)
Also in terms of other food, vacuum packaging can reduce evaporation, water control due to food and water loss of coherence, curing phenomenon;
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4)
Vacuum packing in addition to the above effect, also has the mechanical pressure, reduce the oscillation, is advantageous to the advantages of long distance transportation, so can more effectively to keep food color, aroma, taste and shape of the original and nutritional value.
Vacuum packaging bags mainly used: although there are a lot of advantages, but it is not suitable for all food preservation.
The scope of application: (
1)
Salted: sausage, sausage and some pickled vegetables, such as preserved vegetable, dried turnip, pickles, etc. ;
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2)
Fresh meat: beef, lamb, pork and so on.
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3)
Soy bean curd cake, bean paste, etc. ;
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4)
Cooked products: dried beef, chicken, etc;
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5)
Convenience food: rice, vegetables and canned, etc. ;
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6)
Fruits and vegetables;
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7)
Besides the above food, vacuum packaging also applies to drugs, chemical raw materials, metal products, electronics, textiles, medical supplies and the preservation of cultural relics.
Vacuum packing combined with some physical methods, such as cold storage, frozen, there will be a better preservation effect.
Vacuum packaging does not apply to fragile brittle food, have sharp edges and is easy to Pierce the plastic bags and soft, easy to deformation of
food packaging and preservation.
Main characteristics and application scope of vacuum packaging field is above all, if you need to know more professional knowledge of vacuum packing bag, please contact.
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