Ethylene scavenging

OS = oxygen scavenger ES = ethylene scavenger MR = moisture regulator AMP = antimicrobial system O = releaser. 

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]. 

Small yields (1-2%) of propane are produced in ethylene-scavenged methane where the process may be that outlined by eq. (50). Interestingly enough, the high yield of propane observed in un-scavenged methane was primarily due to another type of reaction. 

Meyer, M. D. and Terry, L. A. 2010. Fatty acid and sugar composition of avocado, cv. Hass, in response to treatment with an ethylene scavenger or 1-methylcyclopropene to extend storage life. Food Chem. 121 1203-1210. 

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). 

In Austraha, researchers from Food Science Austraha (FSA) developed ethylene scavenging technology, which is based on the irreversible and specific reaction be-... 

Smith, A. W. J., Poulston, S., Rowsell, L., Terry, L. A., and Anderson, J. A. A new palladium-based ethylene scavenger to eontrol ethylene-induced ripening of elimaeterie Fruit. Platinum Metals Rev., 53, 112-122 (2009). 

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