ESTIER, Tom; MARCHAL, Axel

doi:10.1016/j.foodchem.2024.139503

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ESTIER, Tom
Unité de Recherche Œnologie [Villenave d'Ornon] [OENO]

MARCHAL, Axel

Unité de Recherche Œnologie [Villenave d'Ornon] [OENO]

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Food Chemistry. 2024-09-01, vol. 451, p. 139503

Résumé en anglais

Whereas bitterness perception can modify the taste balance of white wines, its molecular origin remains largely unclear. This work aimed at determining the influence of a selection of the most cited bitter compounds on the bitterness of commercial dry white wines. Forty-two wines were sensorially characterized by a trained panel and divided into two statistically different groups depending on their bitterness. Twenty-seven bitter compounds were selected and five quantitation methods were developed and validated. The methods were used to measure the levels of all the 27 compounds in dry wine, 25 of them in sweet wine and 22 of them in grape juice. The detected concentrations were generally below the taste detection thresholds. No significant positive correlation between the bitterness intensity of the tasted samples and the concentration of the assayed bitter compounds was observed, suggesting the existence of other markers of bitterness in white wines.< Réduire

Mots clés en anglais

Bitter taste

White wine

Orbitrap mass spectrometry

Wine tasting

Taste balance

Phenolic compounds

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Towards an understanding of bitterness in white wines: Contribution of 27 compounds assessed by LC-HRMS and sensory analysis

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