Composition of Australian Honey Extractives. 1. Norisoprenoids, Monoterpenes, and Other Natural Volatiles from Blue Gum (Eucalyptus leucoxylon) and Yellow Box (Eucalyptus melliodora)

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• 作者：Bruce R. D'Arcy ; Gavin B. Rintoul ; Catherine Y. Rowland ; and Adrian J. Blackman
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：1997
• 出版时间：May 1997
• 年：1997
• 卷：45
• 期：5
• 页码：1834 - 1843
• 全文大小：190K
• 年卷期：v.45,no.5(May 1997)
• ISSN：1520-5118

文摘

Chemical fingerprinting of Australian honey requires information on thecomposition of naturalhoney volatiles if it is to be useful as a honey-sourcing method.The naturally occurring volatilesof Australian blue gum (Eucalyptus leucoxylon) and yellowbox (Eucalyptus melliodora) honeyswereisolated by solvent (ethyl acetate) extraction. Compounds in theextracts were analyzed by gaschromatography (GC) and gas chromatography-mass spectrometry(GC-MS). These procedureshave permitted the identification of 55 compounds that includenorisoprenoids, monoterpenes,benzene derivatives, aliphatic compounds, and Maillard reactionproducts. The following 13compounds were quantitatively identified for the first time in honey:four isomeric 3,4-dihydro-3-oxoactinidols; 8,9-dehydrotheaspirone; two isomeric3-oxoretro--ionols; megastigm-4-ene-3,9-dione;1-phenylbutane-2,3-diol; 1-phenylbutane-2,3-dione; 18-hydroxyoleic acidlactone; 3,5-dihydroxy-2-methyl-4H-pyran-4-one; and2,5-dimethyl-2,4-dihydroxy-3(2H)-furanone. The natureof the volatilesand semivolatiles in these two Australian honeys suggests thatAustralian honeys are quitedistinctive relative to the other honeys that have been chemicallystudied by GC-MS.Keywords: Australian blue gum (Eucalyptus leucoxylon) honey;yellow box (Eucalyptus melliodora);natural volatiles; norisoprenoids; extractives; monoterpenes;composition