Role of oak coumarins in the taste of wines and spirits: identification, quantitation, and sensory contribution through perceptive interactions - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Journal of Agricultural and Food Chemistry Année : 2020

Role of oak coumarins in the taste of wines and spirits: identification, quantitation, and sensory contribution through perceptive interactions

Résumé

During barrel aging, wines and spirits undergo sensory changes as a result of the release of aroma and taste molecules. Among the nonvolatile compounds, various coumarins have already been identified in oak wood but their sensory role remained unclear. In this study, the presence of coumarins in oak wood extract, wine, and spirits was first assessed by targeted screening. Fraxetin was identified for the first time in these matrices. After development and validation of a liquid chromatography–high-resolution mass spectrometry quantitation method, esculetin, scopoletin, fraxetin, umbelliferone, 4-methylumbelliferone, and coumarin were assayed in various wines and spirits. The concentrations measured were generally below the gustatory detection thresholds determined in wines and spirits. Nevertheless, by adding a mixture of coumarins in wines and spirits, a significant increase in bitterness was observed, thus demonstrating their potential contribution to the taste of wines and spirits through perceptive interactions.
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Dates et versions

hal-02912004 , version 1 (05-08-2020)

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Delphine Winstel, Eric Gautier, Axel Marchal. Role of oak coumarins in the taste of wines and spirits: identification, quantitation, and sensory contribution through perceptive interactions. Journal of Agricultural and Food Chemistry, 2020, 68 (28), pp.7434-7443. ⟨10.1021/acs.jafc.0c02619⟩. ⟨hal-02912004⟩

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