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Título

Flavonoids in monospecific eucalyptus honeys from Australia

AutorMartos, Isabel; Ferreres, Federico ; Yao, Liu H.; D'Arcy, Bruce; Caffin, Nola; Tomás Barberán, Francisco
Palabras claveHoney
Eucalyptus
Botanical origin
Quality
Flavonoids
Floral markers
Fecha de publicación15-sep-2000
EditorAmerican Chemical Society
CitaciónJournal of Agricultural and Food Chemistry 48(10): 4744-4748 (2000)
ResumenThe HPLC analyses of Australian unifloral Eucalyptus honeys have shown that the flavonoids myricetin (3,5,7,3‘,4‘,5‘-hexahydroxyflavone), tricetin (5,7,3‘,4‘,5‘-pentahydroxyflavone), quercetin (3,5,7,3‘,4‘-pentahydroxyflavone), luteolin (5,7,3‘,4‘-tetrahydroxyflavone), and kaempferol (3,5,7,4‘-tetrahydroxyflavone) are present in all samples. These compounds were previously suggested as floral markers of European Eucalyptus honeys. The present results confirm the use of flavonoid analysis as an objective method for the botanical origin determination of eucalyptus honey. Honeys from E. camaldulensis (river red gum honey) contain tricetin as the main flavonoid marker, whereas in honeys from E. pilligaensis (mallee honey), luteolin is the main flavonoid marker, suggesting that species-specific differences can be detected with this analysis. The main difference between the flavonoid profiles of Australian and European Eucalyptus honeys is that in the Australian honeys, the propolis-derived flavonoids (pinobanksin (3,5,7-trihydroxyflavanone), pinocembrin (5,7-dihydroxyflavanone), and chrysin (5,7-dihydroxyflavone)) are seldom found and in much smaller amounts.
Descripción5 pages, 2 figures, 2 tables.
Versión del editorhttp://dx.doi.org/10.1021/jf000277i
URIhttp://hdl.handle.net/10261/18187
DOI10.1021/jf000277i
ISSN1520-5118 (Online)
0021-8561 (Print)
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