Ethylene scavenger packaging

Active food packaging is a film or coating that is directly or indirectly in contact with any food surfaces to increase the shelf life or improve the quality of the packaged food. The big classifications fall under either oxygen-scavenging or antimicrobial but other upcoming types such as ethylene-scavenging, moisture absorbers, taint removers, and color and flavor enhancers have also been identified. 

Other additives to be used in food packaging include ethylene scavengers (e.g., potassium permanganate) on silica, CO2 scavenger (e.g., calcium hydroxide reacting to calcium carbonate), and CO2- generating additives (e.g., ferrous carbonate). Further additives to be used for content protection incorporated in plastics provide antimicrobial effects, for example, silver or ethanol release, antioxidant release, flavor release, flavor absorption, and moisture control [66]. 

Another active packaging technique is the use of O, CO, or ethylene scavengers/ emitters. Such scavengers/emitters are capable of establishing a rapid equilibrium atmosphere within hermetically sealed produce packages (Labuza 1990). 

Additives are also used in films for scavenging of ethylene and other compormds developed within the package space. 

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