Terroir 1996 banner
IVES 9 IVES Conference Series 9 Étude de la flore levurienne de différents terroirs alsaciens

Étude de la flore levurienne de différents terroirs alsaciens

Abstract

L’utilisation de levures sélectionnées est généralement considérée comme le moyen d’éviter les problèmes fermentaires. Néanmoins de nombreux viticulteurs pensent que ces levures sont à l’origine d’une standardisation des vins et militent pour le respect d’une flore indigène (Bourguignon, 1992). De nombreux travaux récents éclairent d’un jour nouveau le concept de flore indigène (Frezier et Dubourdieu, 1992 ; Versavaud et al., 1993 ; Delteil et al., 1996). Dans notre démarche de caractérisation des vignobles alsaciens, ce travail a pour objectifs de fournir des éléments de réponses à deux questions :
– Existe-t’il une flore levurienne “indigène” de Saccharomyces cerevisiae spécifique à chaque terroir ?
– Que devient cette flore au cours d’une vinification traditionnelle ?

DOI:

Publication date: March 25, 2022

Issue: Terroir 1996

Type : Poster

Authors

J.L. LEGRAS, J.P. MEYER, E. LEGNAME, A. SCHAEFFER

INRA, Station de recherches Vigne et Vin, laboratoire d’Oenologie – IPV
8, rue Kleber B.P. 507, 68021 COLMAR Cedex

Tags

IVES Conference Series | Terroir 1996

Citation

Related articles…

Les préparations biodynamiques 500 et 501 ont elles un effet sur la vigne ?

Dans le cadre de TerclimPro 2025, Markus Rienth a présenté un article IVES Technical Reviews. Retrouvez la présentation ci-dessous ainsi que l’article associé : https://ives-technicalreviews.eu/article/view/8396

Composition and molar mass distribution of different must and wine colloids

A major problem for winemakers is the formation of proteinaceous haze after bottling. Although the exact mechanisms remain unclear, this haze is formed by unfolding and agglomeration of grape proteins, being additionally influenced by numerous further factors.

Les AOC : un frein ou un moteur à l’innovation ? Retour sur l’histoire économique, scientifique, sociale et technique des vins d’appellation au XXe siècle en France

At a time when the world’s winegrowing industry is having to adapt to a number of challenges, winegrowers are wondering about the consequent changes they will have to make (grape varieties, changes in vineyard and cellar techniques). For winegrowers and consumers alike, there is also the question of how these changes will affect the taste of their wines. This research, based on the study of numerous sources and archives from the 20th century, some of which have never been published before, aims to show that, in the recent past, the winegrowing world has shown incredible resilience in the face of crises, and that the taste and perception of fine wines has changed considerably in 100 years.

137Cs analysis by gamma spectrometry and its potential for dating Portuguese old wines

Analytical methods for dating wines often rely on assessing anthropogenic and cosmogenic radionuclides, including 14C and 137Cs [1,2].

Re-examination and meta-analysis of previous research as a tool to evaluate the suitability of rootstocks in adaptation to global change. A study case from Spanish viticulture

Meta-analysis (MA) is a method that allows statistical synthesis of the results of several similar individual studies (Figure 1). This term was introduced by Glass in 1976 as a useful tool for the scientific community to pool and summarise the enormous amount of information collected in the literature.