OXYGEN SCAVENGING COMPOSITIONS AND METHODS OF USE

Oxygen is removed or maintained in a sealed container by electrochemically reducing the oxygen to water using an enzymatic O2 scavenging system based on a laccase enzyme. Activation of the O2 scavenging system typically occurs by water (liquid or vapor) adsorption; in preferred embodiments, ascorbat...

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Bibliographische Detailangaben
Hauptverfasser:	DAMORE, MICHAEL, B, FARNETH, WILLIAM, E, HASTY, NOEL, M, CHISHOLM, DEXTER, ALLAN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR ADHESIVES APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS OR TEST PAPERS THEREFOR CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING DYES ENZYMOLOGY HANDLING THIN OR FILAMENTARY MATERIAL HUMAN NECESSITIES HYGIENE INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEASURING MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS MEDICAL OR VETERINARY SCIENCE METALLURGY MICROBIOLOGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MUTATION OR GENETIC ENGINEERING NATURAL RESINS PACKAGES PACKAGING ELEMENTS PACKING PAINTS PERFORMING OPERATIONS PHYSICS POLISHES PROCESSES OF PREPARING SUCH COMPOSITIONS SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS SPIRITS STORING TESTING TRANSPORTING VINEGAR WINE
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Beschreibung
Zusammenfassung:	Oxygen is removed or maintained in a sealed container by electrochemically reducing the oxygen to water using an enzymatic O2 scavenging system based on a laccase enzyme. Activation of the O2 scavenging system typically occurs by water (liquid or vapor) adsorption; in preferred embodiments, ascorbate and isoascorbate (and their corresponding acids) are especially advantageous for their dual role as reductant and hygroscopic agent. The capacity of the O2 scavenging system can be manipulated by altering the concentration of reductant that is included in the O2 scavenging composition. The O2 scavenging system can be prepared in a variety of formats (e.g., inks, labels, packets, liners, patches, caps, within the packaging material itself) and is readily produced by apparatuses conventionally used in the industry on a high speed continuous basis.