Functional Advantages Of Active Packaging Systems – Packaging, Food Packaging, Active Packaging

Active packaging system for its special features advantages in the areas of domestic and widely used in food packaging, development prospects.

Oxygen system Main oxidants, photochemical agent oxygen film, intelligent oxygen cover. Mitsubishi has introduced the oxygen to iron as the matrix agent, except with oxygen function, but also with a variety of complex functions, such as the absorption of oxygen, produces carbon dioxide; both absorb oxygen, they absorb carbon dioxide; absorb oxygen, to produce ethanol and other . The material used to wrap food to prevent food mold.

Example: adding oxygen agents with the polypropylene film packaging of white bread, shelf life can be extended from five days to 45 days, the drawback is the possible anaerobic microorganisms. CSIRO laboratory in Sydney, Australia through the development of active packaging film, the first film to introduce a photochemical oxygen. The film’s inner wall is coated with a special dye, when exposed to light after being able to absorb oxygen. Rapeseed oil transport in this film packaging, price of peroxide can be reduced 66%, the drawback is no light on does not work. Principles of the United States made of imitation human blood oxygen intelligent oxygen bottle, using a special material processing in the cap liner, can absorb oxygen into the bottle top of the gap. Beer ingredients for highly sensitive to oxygen, so this kind of beer bottle caps for good effect.

Carbon dioxide control system Mainly used for fresh food packaging. Japan has developed a magnetic earth filling of low density polyethylene film with high oxygen, carbon dioxide and ethylene through rate. France developed a carbon dioxide control by chemical substances containing packets porous composition of the bottom of his stick in the packaging, when the food with liquid leakage, the packet will be the release of carbon dioxide within the material to inhibit microbial breeding.

Ethylene Absorption System Because plants release ethylene gas will promote the growth of corruption, and ethylene gas and can be porous, inorganic minerals and silica, zeolite, etc. is absorbed, it will be of such material into powder, mixed with polyethylene direct or polypropylene material, after extrusion, that is made of vinyl with the absorption feature film. In Japan, this film has been packed with vegetables, and can be affixed to the corrugated cardboard boxes used to transport flowers. The main drawback is the price too high, and not with transparency.

Preservative controlled release system Mainly alcohol dose packets, films and other antibiotics. Japan has put a lot of food packaging using alcohol within the packets. The method is, in a paper laminated with EVA copolymer material made of small bag, put food grade alcohol adsorbed on the silicon dioxide powder. Pouch Weight 0.6 ~ 6g, that has the 0.5 ~ 3g of alcohol can be evaporated to the packaging inside the gap. Rice cake with its packaging, alcohol vapor can inhibit 10 different fungi, 15 species of bacteria and three kinds of spoilage bacteria breed, so to extend the storage period from 5 to 20 times.

Antibiotics film is in its inner surface coated with a layer of zeolite and metal combination, when the air through the thin film will produce ozone, it can kill microorganisms. The film used to wrap bread, can be fresh for two weeks is not moldy. In addition, the protection of high-fat foods the easiest way is to join the anti-oxidant coating layer of the inner packaging films, but this method has not yet commercialized. BOLA TANGKAS