| Title: | Detection and quantification of natural contaminants of wine by gas chromatography-differential ion mobility spectrometry (GC-DMS) |
| Author(s): | Camara M; Gharbi N; Lenouvel A; Behr M; Guignard C; Orlewski P; Evers D; |
| Address: | "Department of Research in Automotive Equipment, Centre de Recherche Public Gabriel Lippmann , 41 Rue du Brill, L-4422 Belvaux, Luxembourg" |
| ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
| Abstract: | "Rapid and direct, in situ headspace screening for odoriferous volatile organic compounds (VOCs) present in fresh grapes and in wines is a very promising method for quality control because the economic value of a wine is closely related to its aroma. Long used for the detection of VOCs in complex mixtures, miniature differential ion mobility spectrometry (DMS) seems therefore adequate for in situ trace detection of many kinds of VOCs of concern appearing in the headspace of selected foodstuffs. This work aims at a rapid detection, identification, and quantification of some natural and volatile contaminants of wine such as geosmin, 2-methylisoborneol (2-MIB), 1-octen-3-ol, 1-octen-3-one, and pyrazines (2-isopropyl-3-methoxypyrazine, IPMP, and 3-isobutyl-2-methoxypyrazine, IBMP). In the present study, these compounds were spiked at a known concentration in wine and analyzed with a hyphenated trap-GC-DMS device. The detection of all target compounds at concentrations below the human olfactory threshold was demonstrated" |
| Keywords: | Camphanes/analysis Gas Chromatography-Mass Spectrometry/*methods Humans Ketones/analysis Naphthols/analysis Octanols/analysis Olfactometry Pyrazines/analysis Smell Vitis/chemistry Volatile Organic Compounds/*analysis Wine/*analysis; |
| Notes: | "MedlineCamara, Malick Gharbi, Nasser Lenouvel, Audrey Behr, Marc Guignard, Cedric Orlewski, Pierre Evers, Daniele eng 2013/01/30 J Agric Food Chem. 2013 Feb 6; 61(5):1036-43. doi: 10.1021/jf303418q. Epub 2013 Jan 28" |
