Antioxidant White Grape Seed Phenolics: Pressurized Liquid Extracts from Different Varieties

Antioxidants
Carmen García-JaresMarta Lores

Abstract

Grape seeds represent a high percentage (20% to 26%) of the grape marc obtained as a byproduct from white winemaking and keep a vast proportion of grape polyphenols. In this study, seeds obtained from 11 monovarietal white grape marcs cultivated in Northwestern Spain have been analyzed in order to characterize their polyphenolic content and antioxidant activity. Seeds of native (Albariño, Caiño, Godello, Loureiro, Torrontés, and Treixadura) and non-native (Chardonnay, Gewurtzträminer, Pinot blanc, Pinot gris, and Riesling) grape varieties have been considered. Low weight phenolics have been extracted by means of pressurized liquid extraction (PLE) and further analyzed by LC-MS/MS. The results showed that PLE extracts, whatever the grape variety of origin, contained large amounts of polyphenols and high antioxidant activity. Differences in the varietal polyphenolic profiles were found, so a selective exploitation of seeds might be possible.

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Citations

Apr 4, 2019·Critical Reviews in Biotechnology·María Gómez-BrandónJorge Domínguez
Feb 22, 2017·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Nelson F L Machado, Raúl Domínguez-Perles
Feb 17, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Federica PasiniVito Verardo
Mar 23, 2019·Environmental Science and Pollution Research International·María Gómez-BrandónJorge Domínguez
Aug 15, 2018·Evidence-based Complementary and Alternative Medicine : ECAM·Carolina María ViolaMario Eduardo Arena
Aug 23, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Lenka SochorovaJiri Sochor
May 1, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Lenka SochorovaJiri Sochor

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Software Mentioned

Statgraphics XV Centurion

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