Flavonol profiles in berries of wild Vitis accessions using liquid chromatography coupled to mass spectrometry and nuclear magnetic resonance spectrometry
Langue
EN
Article de revue
Ce document a été publié dans
Food Chemistry. 2015, vol. 169, p. 49-58
Résumé en anglais
The flavonol profiles of grape berry skins were analysed in order to assess phenotypic variation between six grapevines belonging to six different species: Vitis vinifera, Vitiscandicans, Vitischampinii, Vitisamurensis, ...Lire la suite >
The flavonol profiles of grape berry skins were analysed in order to assess phenotypic variation between six grapevines belonging to six different species: Vitis vinifera, Vitiscandicans, Vitischampinii, Vitisamurensis, Vitiscinerea and Vitisdoaniana. High-performance liquid chromatography coupled to mass spectrometry (LC-MS) and NMR spectrometry (LC-NMR) were used to separate and identify the flavonols present in these species. The combination of LC-MS and LC-NMR data resulted in the identification of eighteen flavonols. In particular, the new flavonol diglycoside and pentoside derivatives were determined. In addition, the antioxidant capacities of flavonol grape skin extracts were evaluated by using an oxygen radical absorbance capacity method (ORAC).< Réduire
Mots clés
Polyphénol
Vitis Vinifera
Vitis Champinii
Vitis Candicans
Vitis Amurensis
Vitis Cinerea
Vitis Doaniana
Baie de raisin
Peau
Oxygène
Flavonol
Spectrométrie de Masse
Chromatographie en phase liquide
Mots clés en anglais
Flavonol
Grapevine
Identification
Lc–Ms
Lc–Nmr
Polyphenol
Vitis