GABASTON, Julien; CANTOS-VILLAR, Emma; BIAIS, Benoit; WAFFO TEGUO, Pierre; RENOUF, Elodie; CORIO-COSTET, Marie-France; RICHARD, Tristan; MERILLON, Jean-Michel

doi:10.1021/acs.jafc.7b00241

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GABASTON, Julien

Unité de Recherche Oenologie [Villenave d'Ornon] [OENO]

CANTOS-VILLAR, Emma
Unité de Recherche Oenologie [Villenave d'Ornon] [OENO]

BIAIS, Benoit
Unité de Recherche Oenologie [Villenave d'Ornon] [OENO]

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Journal of Agricultural and Food Chemistry. 2017-04-05, vol. 65, n° 13, p. 2711-2718

Résumé en anglais

Stilbene-enriched extracts from Vitis vinifera waste (cane, wood, and root) were characterized by UHPLC-MS. Eleven stilbenes were identified and quantified as follows: ampelopsin A, (E)-piceatannol, pallidol, (E)-resveratrol, hopeaphenol, isohopeaphenol, (E)-ε-viniferin, (E)-miyabenol C, (E)-ω-viniferin, r2-viniferin, and r-viniferin. The fungicide concentration inhibiting 50% of growth of Plasmopara viticola sporulation (IC) was determined for the extracts and also for the main compounds isolated. r-Viniferin followed by hopeaphenol and r2-viniferin showed low IC and thus high efficacy against Plasmopara viticola. Regarding stilbene extracts, wood extract followed by root extract showed the highest antifungal activities. These data suggest that stilbene complex mixtures from Vitis vinifera waste could be used as a cheap source of bioactive stilbenes for the development of natural fungicides.< Réduire

Mots clés en anglais

Fungicides

Industrial

Molecular Structure

Oomycetes

Plant Diseases

Plant Extracts

Plant Roots

Stilbenes

Vitis

Waste Products

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Stilbenes from Vitis vinifera L. Waste: A Sustainable Tool for Controlling Plasmopara Viticola.

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