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1. A shelf-life extender for extending shelf-life of foods wherein said shelf-life extender is a non-aromatic cyclic ketone selected from a group consisting cyclobutanone, 2-methylcyclopentanone, 3-methylcyclopentanone, 2,2-dimethylcyclopentanone, 2,4-dimethylcyclopentanone, 2-chlorocyclopentanone, cyclohexanone, 2-methylcyclohexanone, 2-tert-butylcyclohexanone, 3-methylcyclohexanone, 4-methylcyclohexanoe, 4-ethylcyclohexanone, 4-tert-butylcyclohexanone, 2,2-dimethylcyclohexanone, 2,6-dimethylcyclohexanone, menthone, 2,2,6-trimethylcyclohexanone, 3,3,5,5-tetramethylcyclohexanone, 2-chlorocyclohexanone, 2-hydroxycyclohexanone dimer, 2-methoxycyclohexanone, 8-mercaptomenthone, 2-nitrocyclohexanone, cycloheptanone, cyclooctanone, cyclononanone, cyclodecanone, cycloundecanone, cyclododecanone, cyclotridecanone, cyclopentadecanone, nopinone, 2-hydroxy-3-pinanone, norcamphor, fenchone, camphor, 3-chloro-2-norbornanone, 3-bromocamphor, 3-bromocamphor, 3,9-dibromocamphor, 9,10-dibromocamphor, 3,9,10-tribromocamphor, thiocamphor, bicyclo(3,2,1)octan-2-one, bicyclo(3,3,1)nonan-9-one, 1-decalone, trans-1-decalone, 2-decalone, 8-ketotricyclo(5,2,1.0(2,6)decane, 2-adamantanone, chrysanthemyl alcohol, 1-acetyl-2-methyl-1-cyclopentene, 1-acetyl-1-cyclohexene, 4-acetyl-1-methylcyclohexene, alpha-ionone, beta-ionone, 2-acetyl5-norbornene, 2-methyl-2-cyclopenten-1-one, 3-methyl-2-cyclopenten-1-one, 2-pentyl-2-cyclopenten-1-one, 4,4-dimethyl-2-cyclopenten-1-one, 2,3,4,5-tertamethyl-2-cyclopentanone, cis-jasmone, 3-methyl-1,2-cyclopentanedione, 3-ethyl-2-hydroxy-2-cyclopenten-1-one, 6,7-dihydrocyclopenta-1,3-dioxin-5(4H)-one, 2-cyclohexen-1-one, 3-methyl-2-cyclohexen-1-one, 4,4-dimethyl-2-cyclohexen-1-one, 3,5,-dimethyl-2-cyclohexen-1-one, 2,4,4-trimethyl-2-cyclohexen-1-one, isophorone, pulegone, dihydrocarvone, carvone, carvone, 2,4,4,6-tetrabromo-2,5-cyclohexadienone, 4-methyl-4-trichloromethyl-2,5-cyclohexadien-1-one, 5-(1-hydroxy-1-methylethyl)-2-methyl-2-cyclohexen-1-one, 3-ethoxy-2-cyclohexen-1-one, 3-ethoxy-2-methyl-2-cyclohexen-1-one, 4,4-dimethoxy-2,5-cycloheadien-1-one, 3-amino-5,5-dimethyl-2-cyclohexen-1-one, 3-(dimethylamino)-5,5-dimethyl-2-cyclohexen-1-one, 3-(2-hyrdoxyehtylamino)-5,5-dimethyl-2-cyclohexen-1-one, 2-cyclohepten-1-one, tropolone, 8-cyclohexadecen-1-one, verbenone, 3-methylene-2-norbornanone, 4,4A,5,6,7,8-hexahydro-4A-methyl-2(3H)-naphthalenone, bicyclo(10,3,0)pentadec-12(1)-en-13-one, 1-methoxymethyl-5-norbornen-2-one, 7-syn-methoxymethyl-5-norbornen-2-one, 2-acetylcyclopentanone, 2-acetylcyclohexanone, tetramethyl-1,3-cyclobutanedione, 3,3,5,5-tetramethyl-1,2-cyclopentanedione, 1,3-cyclopentanedione, 2-methyl-1,3-cyclopentaedione, 2-ethyl-1,3-cyclopentanedione, 1,3-cyclohexanedione, 1,4-cyclohexanedione, 1,3-cyclohexanedione, 2-methyl-1,3-cyclohexanedione, 5-methyl-1,3-cyclohexanedione, 5-isopropyl-1,3-cyclohexanedione hydrate, 4,4-dimethyl-1,3-cyclohexanedione, 5,5-dimethyl-1,3-cyclohexanedione, 2-chloro-5,5-dimethyl-1,3-cyclohexanedione, camphorquinone, camphorquinone, 3-(trifluoroacetyl)camphor, 3-(trifluoroacetyl)camphor, 3-heptafluorobutyryl-camphor, 3-heptafluorobutyryl-camphor, cis-bicyclo(3,3,O)octane-3,7-dione, cis-1,5-dimethylbicyclo(3,3,0)octane-3,7-dione, (3AS, 7AS)-hexahydro-3A-hydroxy-7A-methyl-1,5-indandione, bicyclo(3,3,1)nonane-3,7-dione, trans-1,5-decalindione, pentacyclo(5,4,0,0(2,6),0(3,10),0(5,9))-undecane-8,11-dione, 3,4-dihydroxy-3-cyclobutene, 1,2-dione, 3,4-dihydroxy-3-cyclobutene-1,2-dione,dilithium salt, 3,4-dimethoxy-3-cyclobutene, 1,2-dione, 3,4-diisopropoxy-3-cyclobutene-1,2-dione, 3,4-dibutoxy-3-cyclobutene-1,2-dione, 4-cyclopentene-1,3-dione, 4-hydroxy-5-methyl-4-cyclopentene-1,3-dione monohydrate, 2-allyl-2-methyl-1,3-cyclopentanedione, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 3,5-di-tert-butyl-1,2-benzoquinone, tetrachloro-1,2-benzoquinone, tetrabromo-1,2-benzoquinone, 1,4-benzoquinone, methyl-1,4-benzoquinoine, 2,6-dimethylbenzoquinone, thymoquinone, 2,6-di-tert-butyl-1,4-benzoquinone, duroquinone, 2-chloro-1,4-benzoquinone, 2,5-dibromo-6-isopropyl-3-methyl-1,4-benzoquinone, tetrafluoro-1,4-benzoquinone, tetrachloro-1,4-benzoquinone, tetrabromo-1,4-benzoquinone, 2,5-dihydroxy-1,4-benzoquinone, chloranilic acid, 2,6-dichloroquinone-4-chloroimide, tetrahydroxy-1,4-quinone hydrate, 2-hydroxymethyl-6-methoxy-1,4-benzoquinone, 2,3-dimethoxy-5-methyl-1,4-benzoquinone, coerulignone, 9-methyl-delta/5(10)-octalin-1,6-dione, 1,4,4A,8A-tetrahyrdro-endo-1,4-methano-naphthalene-5,8-dione, 2-acetyl-1,3-cyclohexanedione, rhodizonic acid dihydrate, rhodizonic acid disodium salt, hexakeytocyclohexane octahydrate, 2,3-dichloro-1,4,5,8-naphthalenetetrone, 1-diethylamino-3-butanone, 4-acetoxy-2-azetidinone, 1-methyl-4-piperidone, 1-ethyl-3-piperidone hydrochloride, 1-ethyl-4-piperidone, 1-propyl-4-piperidone, 3-quinuclidinone hydrochloride, 2,2,6,6-tetramethyl-4-piperidone monohydrate, 2,2,6,6,-tetramethyl-4-piperidone hydrochloride, 4-((1-methyl-4(1H)-pyridinyl-idene)ethylidene)-2,5-cyclohexadien-1-one hydrate, 3-hydroxy-1,2-dimethyl-4(1H)-pyridone, 3,5-diacetyl-1,4-dihydro-2,6-dimethylpyridine, 5,5-dibromobarbituric acid, 4-oxo-temp free radical, 2-methyltetrahydrofuran-3-one, dihydro-2,2,5,5-tetramethyl-3(2H)-furanone, tetrahydro-4H-pyran-4-one, 1,4-cyclohexanedione mono-ethylene ketal, 1,4-cyclohexanedione mono-2,2-dimethyl-trimethylene ketal, 4H-pyran-4-one, 2,6-dimethyl-gamma-pyrone, 3-hydroxy-2-methyl-4-pyrone, tropinone, kojic acid, exo-6-hydroxytropinone, tetrahyrdrothiophen-3-one, tetrahydrothiopyran-4-one, beta,beta-dimethyl-gamma-(hydroxy-methyl)-gamma-butyrolactone, 1,6-dioxaspiro(4,4)nonane-2,7-dione, and a mixture thereof for treatment of a food to extend shelf-life of the foods.
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