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J Agric Food Chem

Title:		Differentiation of manuka honey from kanuka honey and from jelly bush honey using HS-SPME-GC/MS and UHPLC-PDA-MS/MS
Author(s):		Beitlich N; Koelling-Speer I; Oelschlaegel S; Speer K;
Address:		"Food Chemistry Department, Technische Universitat Dresden , Bergstrasse 66, 01069 Dresden, Germany"
Journal Title:		J Agric Food Chem
Year:		2014
Volume:		20140626
Issue:		27
Page Number:		6435 - 6444
DOI:		10.1021/jf501818f
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"In the present study, pollen-identical pure manuka and kanuka honeys and an Australian jelly bush honey were analyzed for the nonvolatiles by UHPLC-PDA-MS/MS and for the volatiles by HS-SPME-GC/MS. A chromatographic profile matchup by means of characteristic marker compounds achieved a clear discrimination between manuka, kanuka, and jelly bush honey. UHPLC-PDA profiles of manuka honey show leptosin, acetyl-2-hydroxy-4-(2-methoxyphenyl)-4-oxobutanate, 3-hydroxy-1-(2-methoxyphenyl)-penta-1,4-dione, kojic acid, 5-methyl-3-furancarboxylic acid, and two unknown compounds as prominent, kanuka honey was characterized by 4-methoxyphenyllactic acid, methyl syringate, p-anisic acid, and lumichrome. 2-Methylbenzofuran, 2'-hydroxyacetophenone, and 2'-methoxyacetophenone were markant volatiles for manuka honey, whereas kanuka honey was characterized by 2,6,6-trimethyl-2-cyclohexene-1,4-dione, phenethyl alcohol, p-anisaldehyde, and an unknown compound in HS-SPME-GC/MS. The jelly bush honey differed from the manuka honey by higher contents of 2-methoxybenzoic acid and an individual unknown substance in the PDA profile and by lower intensities of 2'-methoxyacetophenone, higher concentrations of cis-linalool oxide, and 3,4,5-trimethylphenol in the HS-SPME-GC/MS profile"
Keywords:		"Australia Chromatography, High Pressure Liquid/*methods Discriminant Analysis Gas Chromatography-Mass Spectrometry/*methods Honey/*analysis Solid Phase Microextraction/*methods Tandem Mass Spectrometry/*methods Volatile Organic Compounds/*chemistry/isolat;"
Notes:		"MedlineBeitlich, Nicole Koelling-Speer, Isabelle Oelschlaegel, Stefanie Speer, Karl eng Evaluation Study 2014/06/19 J Agric Food Chem. 2014 Jul 9; 62(27):6435-44. doi: 10.1021/jf501818f. Epub 2014 Jun 26"