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Volatiles from a Rare Acer spp. Honey Sample from Croatia
Faculty of Chemistry and Technology, University of Split, N. Tesle 10/V, 21000 Split, Croatia
Marko Marulić Polytechnic in Knin, P. Krešimira IV 30, 22300 Knin, Croatia
Department of Biotechnology, University of Rijeka, S. Krautzeka bb, 51000 Rijeka, Croatia
Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia
* Author to whom correspondence should be addressed.
Received: 10 June 2010; Accepted: 23 June 2010 / Published: 24 June 2010
Abstract: A rare sample of maple (Acer spp.) honey from Croatia was analysed. Ultrasonic solvent extraction (USE) using: 1) pentane, 2) diethyl ether, 3) a mixture of pentane and diethyl ether (1:2 v/v) and 4) dichloromethane as solvents was applied. All the extracts were analysed by GC and GC/MS. The most representative extracts were 3) and 4). Syringaldehyde was the most striking compound, being dominant in the extracts 2), 3) and 4) with percentages 34.5%, 33.1% and 35.9%, respectively. In comparison to USE results of other single Croatian tree honey samples (Robinia pseudoacacia L. nectar honey, Salix spp. nectar and honeydew honeys, Quercus frainetto Ten. honeydew as well as Abies alba Mill. and Picea abies L. honeydew) and literature data the presence of syringaldehyde, previously identified in maple sap and syrup, can be pointed out as a distinct characteristic of the Acer spp. honey sample. Headspace solid-phase microextraction (HS-SPME) combined with GC and GC/MS identified benzaldehyde (16.5%), trans-linalool oxide (20.5%) and 2-phenylethanol (14.9%) as the major compounds that are common in different honey headspace compositions.
Keywords: Acer spp. honey; ultrasonic solvent extraction (USE); headspace solid-phase microextraction (HS-SPME); gas chromatography and mass spectrometry (GC and GC/MS); syringaldehyde
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Jerković, I.; Marijanović, Z.; Malenica-Staver, M.; Lušić, D. Volatiles from a Rare Acer spp. Honey Sample from Croatia. Molecules 2010, 15, 4572-4582.
Jerković I, Marijanović Z, Malenica-Staver M, Lušić D. Volatiles from a Rare Acer spp. Honey Sample from Croatia. Molecules. 2010; 15(7):4572-4582.
Jerković, Igor; Marijanović, Zvonimir; Malenica-Staver, Mladenka; Lušić, Dražen. 2010. "Volatiles from a Rare Acer spp. Honey Sample from Croatia." Molecules 15, no. 7: 4572-4582.