Quantification of megastigmatrienone, a potential contributor to tobacco aroma in spirits
Slaghenaufi, Davide | Perello, Marie-Claire | Marchand, Stéphanie | de Revel, Gilles | Unité de Recherche Oenologie [Villenave d'Ornon] (OENO) ; Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB)-Institut des Sciences de la Vigne et du Vin (ISVV)
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Показать больше [+] Меньше [-]Английский. A SPME-GC-MS method was adapted and validated in order to quantify 5 megastigmatrienones and related odorous compounds from oak wood: guaiacol, cis-whisky lactone, trans-whisky lactone, gamma-cnonalactone, eugenol, vanillin, and acetovanillone in a single run. The five megastigmatrienone isomers (tabanones) were quantified, for the first time, in Cognac, Armagnac and rum, as contributors to tobacco-like aromas. Spirits aged in oak barrels contain higher amounts, but megastigmatrienones are also present in freshly-distilled spirits. Statistical analysis revealed that freshly-distilled and barrel-aged spirits were differentiated by their megastigma-4,7E, 9-trien-3-one levels. The Armagnac and Cognac samples were distinguished by their concentrations of the megastigma-4,6Z, 8E-trien-3-one isomer.
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