Original research articles

Relation entre les difficultés de fermentation et certaines activités enzymatiques de la levure

Abstract

The arrest of fermentation in medium rich in sugar (grape must) is not related to the inhibition of hexokinase and alcohol-dehydrogenase activities of Sacch. cerevisiae. When yeast are grown in the presence of some inhibitory factors (ethanol, octanoic and decanoic acids), the alcohol-dehydrogenase activity is strongly increased.

Authors


Françoise Larue

Affiliation : Institut D'OEnologie, Université de Bordeaux II, 351, cours de la Libération, 33405 Talence cedex (France)

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Suzanne Lafon-Lafourcade

Affiliation : Institut d'OEnologie, Université de Bordeaux II & Institut National de la Recherche Agronomique, 351, Cours de la Libération, 33405 Talence Cédex (France)


Pascal Ribéreau-Gayon

Affiliation : Faculté d’OEnologie, Université Victor Segalen Bordeaux 2, 351 cours de la Libération, 33405 Talence cedex (France)

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