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Seed and skin-derived flavanols in red wine: a study of Syrah, Marselan, and Tannat cultivars by Guzmán Favre; Sergio Gómez-Alonso; José Pérez-Navarro; Esteban García-Romero; Adela Mena-Morales; Diego Piccardo; Gustavo González-Neves is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Seed and skin-derived flavanols in red wine: a study of Syrah, Marselan, and Tannat cultivars about?

The flavanol composition of red wine, stemming from grape skins and seeds, is a determinant factor of its quality. It has been proposed that the wine flavanol structure depends on the grape cultivar but with skin-derived flavanols prevailing in traditional red winemaking from mature grapes. However, this has not been confirmed for many cultivars. This study analysed the flavanol composition in grapes, wines, and pomace of Syrah, Marselan, and Tannat, Vitis vinifera cultivars known for their potential to yield tannic wines. Across two vintages, 20 wines were produced through traditional winemaking. Flavanols were analysed by HPLC-MS/MS before and after acid-catalysed depolymerisation of proanthocyanidins. Grapes of different ripeness were considered as vineyard with different agronomical characteristics. Nevertheless, each cultivar exhibited a characteristic flavanol composition in both grapes and wines. Notably, all Marselan wines had high proportions of seed-derived flavanols (high proportions of monomers, dimers and low of prodelphinidins), from grapes with high skin flavanol content. In contrast, Tannat and Syrah wines had high proportions of skin-derived flavanols, irrespective

Who reads Seed and skin-derived flavanols in red wine: a study of Syrah, Marselan, and Tannat cultivars?

Author

Guzmán Favre; Sergio Gómez-Alonso; José Pérez-Navarro; Esteban García-Romero; Adela Mena-Morales; Diego Piccardo; Gustavo González-Neves

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)