title: Comparative analyses of stilbenoids in canes of major Vitis vinifera L. cultivars.
abstract: Grapevine canes are rich in resveratrol and its complex derivatives. These compounds have many biological activities and are needed mainly for health purposes. Canes, which are often wasted, can be used to produce these high-value compounds at low cost. We studied sixteen Vitis vinifera L. cultivars among the most widely cultivated ones worldwide. Polyphenols were extracted from their canes and identified by liquid chromatography-nuclear magnetic resonance spectroscopy. We accurately determined the content of E-ε-viniferin, E-resveratrol, E-piceatannol, and vitisin B and, for the first time, that of hopeaphenol and miyabenol C. The canes did not contain these major stilbene compounds in similar proportions, and their abundance and order of abundance varied according to the cultivar. For instance, Pinot noir has very high levels of E-resveratrol and E-ε-viniferin; Gewurztraminer has very high levels of vitisin B, and Carignan and Riesling have very high levels of hopeaphenol. These findings suggest that the right cultivar should be used to obtain the highest yield of a polyphenol of interest.
authors.affiliation: Univ. de Bordeaux , ISVV, Groupe d'Etude des Substances Végétales à Activité Biologique, EA 3675, F-33140 Villenave d'Ornon, France.
authors.forename: Carole
authors.initials: C
authors.lastname: Lambert
authors.forename: Tristan
authors.initials: T
authors.lastname: Richard
authors.forename: Elodie
authors.initials: E
authors.lastname: Renouf
authors.forename: Jonathan
authors.initials: J
authors.lastname: Bisson
authors.forename: Pierre
authors.initials: P
authors.lastname: Waffo-Téguo
authors.forename: Louis
authors.initials: L
authors.lastname: Bordenave
authors.forename: Nathalie
authors.initials: N
authors.lastname: Ollat
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Mérillon
authors.forename: Stéphanie
authors.initials: S
authors.lastname: Cluzet
mesh_terms: D001572:Benzofurans / Q000032:analysis; D002853:Chromatography, Liquid / Q000379:methods; D010636:Phenols / Q000032:analysis; D018547:Plant Stems / Q000737:chemistry; D059808:Polyphenols / Q000032:analysis*; D000077185:Resveratrol; D013045:Species Specificity; D013267:Stilbenes / Q000032:analysis*; D027843:Vitis / Q000737:chemistry*
chemical_list: D001572:Benzofurans; D010636:Phenols; D059808:Polyphenols; D013267:Stilbenes; C518233:hopeaphenol; C480486:malvidin-3-O-glucoside-4 vinyl; C091891:epsilon-viniferin; C041525:3,3',4,5'-tetrahydroxystilbene; D000077185:Resveratrol