Terroir 2008 banner
IVES 9 IVES Conference Series 9 Fermentations management: tools for the preservation of the wine specificity

Fermentations management: tools for the preservation of the wine specificity

Abstract

Development of the indigenous microflora is not insignificant on the wine quality. S. cerevisiae indigenous strains are low tolerant to ethanol. They can lead to sluggish fermentations. B. bruxellensis produce volatile phenols affecting fruity and freshness wines characters. Some indigenous O. oeni strains can be responsible for the presence of biogenic amines in wines. To overcome these problems, the use of selected yeast and bacteria strains is the most efficient tool. However, controlling the native flora industrial strains should not reduce the singularity of each wine. 
Selection process should take into account the aromatic profile of the strains in addition to their fermentative capacity. Researchers should provide large pool of strains suitable to be used for different types of wines. These considerations are crucial for white wines where it is essential to encourage the expression of the varietals qualities. In red wines, strain neutrality aromatic is more recommended and the focus should be made on fermentative kinetics and microbial security. 
The objective of our work is to raise question of the specificity and the diversity of the microbial species and strains involved in winemaking. Probably stemming from their isolation origin, strains exhibited several differences which should be used to encourage the preservation of the differences between each type of wines and to respect the ‘terroir’ impact and the originality of each wine. 

Download the PDF

DOI:

Publication date: December 8, 2021

Issue: Terroir 2008

Type : Article

Authors

Vincent RENOUF (1,3), Charlotte Gourraud (1) and Marie-Laure Murat (2)

(1) Laffort, BP 17, 33072 Bordeaux cedex 15, FRANCE
(2) Laboratoire SARCO, filiale de recherche de la société Laffort, BP 40, 33072 Bordeaux, FRANCE
(3) ENITA de Bordeaux, 1 cours du général de Gaulle, 33175 Gradignan cedex, FRANCE

Contact the author

Keywords

microbial diversity, yeast, bacteria, strains, wine typicity, spoilage 

Tags

IVES Conference Series | Terroir 2008

Citation

Related articles…

Effects of auxin treatment on compositional and molecular ripening dynamics in grape varieties of northern Italy

Context and purpose of the study. The temperature increase related to ongoing climate changes is causing a progressive anticipation of the ripening time, negatively affecting grape quality at harvest.

Read More

Amyndeon‐naoussa: the two faces of Xinomavro

Xinomavro is the most important indigenous red wine variety grown in Northern Greece. It participates in the production of several PGI wines in Macedonia while from 100% Xinomavro the PDO “Amyndeon” and “Naoussa” are produced. The viticultural area of Amyndeon lies in a plateau of 550 ‐700 m of altitude, in a semi‐continental climate with mostly deep sandy loamy soils derived from limestone and marl bedrocks while in Naoussa, Xinomavro is grown in a Mediterranean climate on more heavy textured soils, sandy clay loam to clay, derived from ophiolithic, limestone and marl bedrocks, in an altitude which varies from 150 to 400 m. Different soil, climate and viticultural technique interactions, result in great variability with respect to morphological, ampelographical and physiological characters of Xinomavro as well as in the characteristics of the wines produced. 

Read More

Effect of maceration conditions during the winemaking of withered Corvina grapes on wine polyphenols and anthocyanins

Amarone is an Italian red wine with worldwide recognition and high added value. In Amarone wines, grapes undergo a withering process before vinification; this leads to a modification in the concentrations of sugars, acids, and secondary metabolites.

Read More

Rootstock drought tolerance under dry-farmed conditions in Oregon’s Willamette Valley

Rootstocks are used in vineyards worldwide and have been the focus of many studies. However, rootstock performance varies based on regional climates and soil types. As Oregon experiences warmer seasons and variable precipitation patterns, growers are interested in rootstocks with more drought tolerance than the commonly planted rootstocks: 3309C, Riparia Gloire, and 101-14 Mgt. In Oregon’s Willamette Valley, annual precipitation is typically sufficient to make dry-farming possible and use of irrigation is limited.

Read More

Assessing the feasibility of direct injection for pesticide residue analysis in grape juice by liquid chromatography/triple quadrupole mass spectrometry

In Brazil, the regulation of pesticide residues is guided by the National Health Surveillance Agency (ANVISA) and the Ministry of Agriculture and Livestock (MAPA), emphasizing the importance of monitoring pesticide levels in agricultural products to protect consumer health.

Read More