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Authors: Carole Lambert, Tristan Richard, Elodie Renouf, Jonathan BissonORCID , Pierre Waffo-Téguo, Louis Bordenave, Nathalie Ollat, Jean-Michel Mérillon, Stéphanie Cluzet
Journal: Journal of Agricultural and Food Chemistry (RoMEO status: White)
Subjects: Pharmacognosy Phytochemistry Vine Wine Stilbenoids Polyphenols NMR Mass Spectrometry
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.
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Authors: Carole Lambert, Jonathan BissonORCID , Pierre Waffo-Téguo, Yorgos Papastamoulis, Tristan Richard, Marie-France Corio-Costet, Jean-Michel Mérillon, Stéphanie Cluzet
Journal: Journal of Agricultural and Food Chemistry (RoMEO status: White)
Subjects: Pharmacognosy Phytochemistry Vine Wine Stilbenoids Polyphenols Bioactivity Antifungal
The interaction between Vitis vinifera and trunk disease fungi requires better understanding. We studied the role of phenolics as possible plant defense compounds in this context. The impact of 24 grapevine phenolic compounds was determined on 6 major wood decay fungi by an in vitro agar plate assay. Hydroxystilbenoids, especially oligomers such as miyabenol C, isohopeaphenol, and vitisin A and B, greatly reduced the growth of the fungi, except that of Phaeoacremonium aleophilum.
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