Original research articles

Effects of flusilazole, a sterol biosynthesis inhibitor fungicide, on the free and bound aroma fraction of Muscat of Alexandria wines

Abstract

Vines from Muscat of Alexandria cultivar were subjected to flusilazole treatments, a sterol biosynthesis inhibitor fungicide (SBI), over 2 years. Effects of these treatments on the corresponding wines were assessed by analyzing the free and bound aroma fractions using selective retention on Amberlite XAD-2 and gas chromatography-mass spectrometry. Quantitative changes in the composition of the free and bound fractions of the treated wines were observed. Levels of varietal, prefermentative and fermentative compounds were moditied and a regulatory mechanism for sterol synthesis in yeast involving the monoterpenes could be hypothesized.

Authors


Christophe Aubert

Affiliation : Centre Technique Interprofessionnel des Fruits et Légumes, Route de Mollégès, 13210 Saint Rémy de Provence (France)

editorialsecretary@oeno-one.eu

Raymond L. Baumes

Affiliation : INRA, UMR SPO, 2 place Viala, 34060 Montpellier cedex 1, France


Ziya Günata

Affiliation : Université Montpellier II, Laboratoire de Génie Biologique et Science des Aliments, 34095 Montpellier, France


Jean-Paul Lepoutre

Affiliation : Institut Supérieur de la Vigne et du Vin, INRA-IPV, 2 place Viala, 34060 Montpellier Cedex 1 (France)


Jean-François Cooper

Affiliation : Laboratoire de Chimie Analytique, Faculté de Pharmacie, Avenue Charles Flahault, 34060 Montpellier cedex (France)


Claude L. Bayonove

Affiliation : Laboratoire des Arômes et Substances Naturelles, INRA-IPV, 2 place Viala, 34060 Montpellier cedex 01 (France)

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