Determination of key odorant compounds in freshly distilled cognac using GC-O, GC-MS, and sensory evaluation

Journal of Agricultural and Food Chemistry
Gérald FerrariElisabeth Guichard

Abstract

This aim of this work was to identify the odorant compounds responsible for the typical sensory descriptors attributed to freshly distilled Cognac spirits, not matured in barrels. Panelists were first selected and trained for gas chromatography-olfactometry. Among the 150 volatile compounds identified by gas chromatography-mass spectrometry analysis, only 34 are mainly responsible for the odors detected in the spirits. The "butter" descriptor is explained by the presence of diacetyl, the "hay" descriptor by nerolidol, the "grass" descriptor mainly by Z-3-hexen-1-ol, but also by other compounds, the "pear" and "banana" descriptors by 2- and 3-methylbutyl acetates, the "rose" descriptor by 2-phenylethyl acetate, and the "lime tree" descriptor by linalool. This study demonstrated that many odorant molecules are already present in freshly distilled Cognac, thereby giving the spirit its specific aroma.

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Citations

Dec 24, 2008·Journal of Fluorescence·Xiaohua LiOtto S Wolfbeis
Aug 27, 2011·Journal of Agricultural and Food Chemistry·Mark A SeftonDennis K Taylor
Jan 30, 2013·Journal of Chromatographic Science·Georgia Ch Lainioti, George Karaiskakis
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Sep 17, 2013·Journal of the Science of Food and Agriculture·Argyrios TsakirisYiannis Kourkoutas
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Mar 8, 2005·Journal of Mass Spectrometry : JMS
Jun 3, 2005·Phytochemical Analysis : PCA
Mar 9, 2011·Journal of the Science of Food and Agriculture·Roberto Rodríguez MadreraAnna Picinelli Lobo
Jun 13, 2017·Food Science and Biotechnology·Hui NiFeng Chen
Jul 10, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Saša MatijaševićTatjana Popović
Dec 19, 2020·Comprehensive Reviews in Food Science and Food Safety·M M Chayan MahmudRussell Keast
Mar 7, 2021·Foods·Maria KyraleouKieran N Kilcawley
Apr 9, 2021·Journal of Agricultural and Food Chemistry·Fannie ThibaudAlexandre Pons
Aug 11, 2021·Sensors·Dominik DobrzyniewskiJacek Gębicki
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Feb 14, 2020·Journal of Agricultural and Food Chemistry·Fannie ThibaudPhilippe Darriet
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Aug 4, 2005·Journal of Agricultural and Food Chemistry·Daniel OsorioEduardo Agosin

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