Terroir 2008 banner
IVES 9 IVES Conference Series 9 Influence of the year and the environmental factors on condensed tannins from Cabernet franc grapes

Influence of the year and the environmental factors on condensed tannins from Cabernet franc grapes

Abstract

The composition in condensed tannins of the grape berries is essential for the quality of the harvest. Proanthocyanidins have a significant influence on the organoleptic properties of the red wines.
The influence of the environmental factors on the Cabernet franc composition in condensed tannins was studied in Saumurois and Touraine. For 3 years, a network of 14 plots was conducted in an identical way in terms of viticultural management. The biochemical composition of the berries was analysed, in particular for the condensed tannins, by RP-HPLC after fractionation and thiolysis.
The results showed that the type of soil did not discriminate the plots. However, the quantity of tannins was influenced by the climatic variables except for sunshine. The duration of the vegetative cycle and its precocity had a significant influence on the percentage in prodelphinidin. The average degree of polymerization was correlated with the delta C13 and with rainfall between flowering and ripening. This study showed a year effect on the content of tannins, expressed in g/kg, the DPm and the percentage in prodelphinidin. The proportion in galloyled units was correlated with the water stress during the period previous veraison and by the vigour of the vine.

DOI:

Publication date: December 8, 2021

Issue: Terroir 2008

Type : Article

Authors

Réjane CHAMPENOIS, Yves CADOT, Nicolas BOTTOIS, Gérard BARBEAU

INRA, UE 1117 Vigne et Vin, F-49070 Beaucouzé, France

Contact the author

Keywords

terroir, tanins condensés, Cabernet franc, Vitis vinifera

Tags

IVES Conference Series | Terroir 2008

Citation

Related articles…

Terroir effects on wine aromatic metabolomics in the eastern foot of Helan Mountain, Ningxia, China

Aim: The eastern foot of Helan Mountain, Ningxia, China is one of the most important wine production regions in China and grape cultivation has spread in several sub-regions with different soils and cultivars. Large diversity in wine aromas have been observed at Ningxia region but which terroir factors drive those diversity in aromas remain to uncover. This study aims to investigate the impacts of grape varieties and soil chemical properties on wine aromas at Ningxia, in order to characterize the aromatic typicality of Ningxia wines and provide foundation for developing a ‘Protected Designation of Origin’ system. 

Natural sparkling wine pétillant naturel: technological features and sensory profile

The article presents the results of a study on the technological features of producing sparkling wines of the Pétillant Naturel (Pet-Nat) type, made using the ancestral method from the Muscat Ottonel and Pinot Noir grape varieties.

Sensory profiles and European Consumer Preference related to Aroma and Phenolic Composition of Wines made from Fungus Resistant Grape Varieties

New grape varieties with several resistance loci towards powdery and downy mildew allows to significantly reduce the use of fungicides

Elucidating contributions by vineyard site on volatile aroma characteristics of pinot noir wines

Correlations between vineyard site and wine have, historically, been limited due to lack of uniformity in scion and rootstock clone and lack of controlled pilot-scale winemaking conditions, particularly temperature

Characterization of vine performance using remote sensing tools

Today, a variety of remote sensing tools are used to characterise plant performance. However, the vine is rarely studied, as a major crop specificity is canopy discontinuity. Registered images of the vineyard are anisotropic, therefore difficult to analyse.