| Literature DB >> 28288509 |
Julien Gabaston1, Emma Cantos-Villar2, Benoît Biais1, Pierre Waffo-Teguo1, Elodie Renouf1, Marie-France Corio-Costet3, Tristan Richard1, Jean-Michel Mérillon1.
Abstract
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 (IC50) was determined for the extracts and also for the main compounds isolated. r-Viniferin followed by hopeaphenol and r2-viniferin showed low IC50 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.Entities:
Keywords: UHPLC-MS; antifungal activity; cane; grapevine waste; mildew; root; wood
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Year: 2017 PMID： 28288509 DOI： 10.1021/acs.jafc.7b00241
Source DB: PubMed Journal: J Agric Food Chem ISSN： 0021-8561 Impact factor: 5.279