Identification of the main odor-active compounds in musts from French and Romanian hybrids by three olfactometric methods |
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| Authors: | Serot T Prost C Visan L Burcea M |
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| Institution: | 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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| Abstract: | 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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