Journal
FOOD CHEMISTRY
Volume 70, Issue 4, Pages 427-435Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0308-8146(00)00127-8
Keywords
non-peroxide antibacterial activity; manuka; clover; heather; honeydew honey
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High performance liquid chromatograms of the phenolic fraction of 19 samples of New Zealand manuka honey, some with high levels of non-peroxide antibacterial activity and some with no such activity, were identical, which indicated that phenolic components of this honey are not responsible for the presence or absence of this activity in manuka honey. Similarly, the result showed that geography does not influence the phenolic composition of manuka honey. Antibacterial bee peptides and the antibacterial beta-triketone leptospermone were not detected in manuka honey. Methyl syringate constituted approximately 70% w/w of the phenolic fraction of manuka honey and can be regarded as a floral marker for this honey. High performance liquid chromatographic profiles of the phenolic components of manuka, heather, clover and beech honeydew honeys were significantly different and could be used to differentiate honeys if they can be shown to be as consistent as those of manuka honey. (C) 2000 Elsevier Science Ltd. All rights reserved.
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