Identification of the main odor-active compounds in musts from French and Romanian hybrids by three olfactometric methods.
Three olfactometric methods (frequency of detection, time--intensity method, and aroma extract dilution analysis) were used to evaluate the main odorants of three musts obtained from French--Romanian hybrids (Valerien, Admira, and Brumariu). The three methods allow detection of the same odor-active compounds. The results obtained from these methods were closely related. Nineteen odor-active compounds were detected, and 13 were identified. The three methods showed the importance of an unidentified compound with a grape and grape juice aroma note in the three musts. Among the other compounds, 3-hexen-1-al, (E,Z)-2,6-nonadien-1-ol, and 1-ccten-3-one seemed to contribute actively to the odor of Valerien must. 3-(Methylthio)propanal and hexanal were contributors to the Admira and Brumariu odor. Phenylacetaldehyde was one of the main odor-active compounds in must from Admira.
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Ecole Nationale d'Ingénieurs des Techniques et Industries Agro-Alimentaires, Laboratoire de Biochimie Industrielle Alimentaire, Rue de la Géraudière, B.P. 82225, 44322 Nantes Cedex 3, France. tserot@ifremer.fr
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Visan
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Burcea
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D002849:Chromatography, Gas / Q000379:methods*; D005602:France; D006824:Hybridization, Genetic; D009812:Odorants / Q000032:analysis*; D012383:Romania; D019685:Rosales / Q000737:chemistry*; D014920:Wine / Q000032:analysis*