Fourteen ethyl esters of wine can be replaced by simpler ester vectors without compromising quality but at the expense of increasing aroma concentration
2020
De-La-Fuente-Blanco, Arancha | Sáenz-Navajas, María-Pilar | Valentin, Dominique | Ferreira, Vicente | Laboratorio de Análisis del Aroma y Enología (LAAE), Department of Analytical Chemistry ; Universidad de Zaragoza = University of Zaragoza [Saragossa University] = Université de Saragosse-Instituto Agroalimentario de Aragón (IA2) (UNIZAR-CITA)-Associate Unit to Instituto de las Ciencias de la Vid y el Vino (ICVV) (UR-CSIC-GR) | Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA) ; Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Spanish Ministry of Economy and Competitiveness (MINECO): projects AGL2014-59840 and AGL2017-87373-C3-1-R) + MINECO: JCI-2015-23444.
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Show more [+] Less [-]English. Aroma contribution of individual esters has been studied in complex mixtures mimicking red wine models. A mixture containing 14 ethyl esters at concentrations found in wine (V1) was prepared and kept as reference. Isointense and qualitatively similar aroma vectors with a reduced number of esters (V2-V7) were prepared. Those vectors were introduced in two reconstituted wines to assess whether simpler vectors could replace V1 without compromising wine quality. In the simpler young wine model, V1 could be replaced by a vector containing just 3 odorants (ethyl 2-methylbutyrate, ethyl butyrate and hexanoate). In the oaky model, a vector containing just ethyl 2-methylbutyrate (V7) could replace V1 without any discernible sensory change. Results also reveal that sub- or perithreshold odorants play outstanding roles on the overall odour intensity of the mixture and that aroma simplification concomitantly implies an increase in the amount of odorant required to keep the intensity of the aroma vector.
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