1. Methyl salicylate, a grape and wine chemical marker and sensory contributor in wines elaborated from grapes affected or not by cryptogamic diseases
- Author
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Philippe Darriet, Xavier Poitou, Axel Marchal, Laurence Geny-Denis, Céline Cholet, Alexandre Pons, Emilie Bruez, Pascaline Redon, Laurent Delière, Unité de Recherche Oenologie [Villenave d'Ornon], Université de Bordeaux (UB)-Institut des Sciences de la Vigne et du Vin (ISVV)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Santé et agroécologie du vignoble (UMR SAVE), and Université de Bordeaux (UB)-Institut des Sciences de la Vigne et du Vin (ISVV)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
- Subjects
Vine ,Cryptogamic diseases ,Guignardia ,Wine ,Methyl salicylate ,Stem ,Red wines ,01 natural sciences ,Gas Chromatography-Mass Spectrometry ,Analytical Chemistry ,chemistry.chemical_compound ,0404 agricultural biotechnology ,Chemical marker ,Ascomycota ,Green aromas ,Humans ,Vitis ,Chromatography, High Pressure Liquid ,Plant Diseases ,Grapevine Trunk Disease (Esca) ,Black rot ,biology ,010401 analytical chemistry ,Solid Phase Extraction ,fungi ,food and beverages ,04 agricultural and veterinary sciences ,General Medicine ,biology.organism_classification ,040401 food science ,Salicylates ,0104 chemical sciences ,Horticulture ,chemistry ,Plasmopara viticola ,Fruit ,Taste ,[SDE]Environmental Sciences ,Downy mildew ,Grape black rot ,Food Science - Abstract
International audience; Methyl salicylate (MeSA) is a plant metabolite that induces plant defence resistance and an odorous volatile compound presenting green nuances. This volatile compound was shown to be present in wine samples, sometimes at concentrations above its olfactory detection threshold. MeSA is localized in grapes, particularly in the skins and stems, and is extracted during red wine vinification. It was detected at the highest concentrations in wines of several grape varieties, made from grapes affected by cryptogamic diseases, namely downy mildew caused by Plasmopara viticola, and black rot caused by Guignardia bidwellii. It has also been detected in wines from vines affected by Esca, a Grapevine Trunk Disease. MeSA can also be considered to be a chemical marker in grapes and wine indicative of the level of development of several vine cryptogamic diseases.
- Published
- 2021