Flavonoids, phenolic acids and abscisic acid in Australian and New Zealand Leptospermum honeys
Yao, Lihu and Datta, Nivedita and Tomas-Berberan, Francisco A and Ferreres, Federico and Martos, Isabel and Singanusong, Riantong (2003) Flavonoids, phenolic acids and abscisic acid in Australian and New Zealand Leptospermum honeys. Food Chemistry, 81 (2). pp. 159-168. ISSN 0308-8146Full text for this resource is not available from the Research Repository.
Flavonoids, phenolic acids and abscisic acid of Australian and New Zealand Leptospermum honeys were analyzed by HPLC. Fifteen flavonoids were isolated in Australian jelly bush honey (Leptospermum polygalifolium), with an average content of 2.22 mg/100 g honey. Myricetin (3,5,7,3′,4′,5′-hexahydroxyflavone), luteolin (5,7,3′,4′-tetrahydroxyflavone) and tricetin (5,7,3′,4′,5′-pentahydroxyflavone) were the main flavonoids identified. The mean content of total phenolic acids in jelly bush honey was 5.14 mg/100 g honey, with gallic and coumaric acids as the potential phenolic acids. Abscisic acid was quantified as twice the amount (11.6 mg/100 g honey) of the phenolic acids in this honey. The flavonoid profile mainly consisted of quercetin (3,5,7,3′,4′-pentahydroxyflavone), isorhamnetin (3,5,7,4′-tetrahydroxyflavone 3′-methyl ethyl), chrysin (5,7-dihydroxyflavone), luteolin and an unknown flavanone in New Zealand manuka (Leptospermum scoparium) honey with an average content of total flavonoids of 3.06 mg/100 g honey. The content of total phenolic acids was up to 14.0 mg/100 g honey, with gallic acid as the main component. A substantial quantity (32.8 mg/100 g honey) of abscisic acid was present in manuka honey. These results showed that flavonoids and phenolic acids could be used for authenticating honey floral origins, and abscisic acid may aid in this authentication.
|Uncontrolled Keywords:||ResPubID18340, honey, Leptospermum, botanical origin, flavonoids, phenolic acids, floral markers, Abscisic acid|
|Subjects:||FOR Classification > 1199 Other Medical and Health Sciences
Faculty/School/Research Centre/Department > School of Biomedical and Health Sciences
|Date Deposited:||03 Jun 2011 04:57|
|Last Modified:||20 Jul 2014 00:39|
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|Citations in Scopus:||83 - View on Scopus|
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