« Previous AbstractDo apes smell like humans? The role of skin bacteria and volatiles of primates in mosquito host selection    Next Abstract"Identification of partners of TIF34, a component of the yeast eIF3 complex, required for cell proliferation and translation initiation" »

Food Chem

Title:		"Determination of 5-hydroxymethylfurfural in honey, using headspace-solid-phase microextraction coupled with a polyoxometalate-coated piezoelectric quartz crystal"
Author(s):		Verissimo MI; Gamelas JA; Evtuguin DV; Gomes MT;
Address:		"CICECO & Department of Chemistry, University of Aveiro, Aveiro, Portugal; CESAM & Department of Chemistry, University of Aveiro, Aveiro, Portugal. CIEPQPF & Department of Chemical Engineering, University of Coimbra, Coimbra, Portugal. CICECO & Department of Chemistry, University of Aveiro, Aveiro, Portugal. CESAM & Department of Chemistry, University of Aveiro, Aveiro, Portugal. Electronic address: mtgomes@ua.pt"
Journal Title:		Food Chem
Year:		2017
Volume:		20160930
Issue:
Page Number:		420 - 426
DOI:		10.1016/j.foodchem.2016.09.204
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"High concentrations of 5-hydroxymethylfurfural (HMF) in honey provide an indication of overheating under inappropriate storage conditions or aging. Conventional methods for determining HMF are cumbersome and require expensive equipment or hazardous reagents. Hence the aim of this study was to propose a new analytical tool for HMF determination in honey, using a low cost acoustic wave sensor. Volatile organic compounds (VOCs) of honey samples were extracted, using the solid phase microextraction (SPME) technique, and HMF was quantified, using a piezoelectric quartz crystal with gold electrodes coated with a layer of decamolybdodivanado phosphoric acid, sensitive to HMF. The reliability of the proposed method was confirmed after comparing the results of HMF quantification with those obtained by the conventional spectrophotometric White method, and no statistical differences were found (alpha=0.05)"
Keywords:		Biosensing Techniques/*instrumentation Food Contamination/*analysis Furaldehyde/*analogs & derivatives/analysis Honey/*analysis Quartz/*chemistry Reproducibility of Results Solid Phase Microextraction/*methods Spectrophotometry Tungsten Compounds/*chemist;
Notes:		"MedlineVerissimo, Marta I S Gamelas, Jose A F Evtuguin, Dmitry V Gomes, M Teresa S R eng England 2016/11/20 Food Chem. 2017 Apr 1; 220:420-426. doi: 10.1016/j.foodchem.2016.09.204. Epub 2016 Sep 30"