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…

Les micro-zones et les technologies traditionnelles de la viniculture en Géorgie

La Géorgie est un pays d’une tradition très ancienne de viticulture et de viniculture. Là, dans les micro zones spécifiques, en précisant le lieu on produit de différents types du vin d’une

Soil chemistry as a measure of the distinctiveness of american viticultural areas of the Columbia basin, USA

The Columbia Basin, a semi-arid region centered in the eastern part of Washington State, is the second largest wine grape growing region in the United States and presently contains 10 American Viticultural Areas

Effects of wine versus de-alcoholised wine on the microbiota-gut-brain axis in a tau-pathology murine model of Alzheimer’s disease

Alzheimer’s Disease (AD) is the most common disorder associated with cognitive impairment and the main cause of dementia globally. Multiple evidence in the last decade suggest that the gut microbiome plays an important role in the pathogenesis and progression of AD via the microbiota-gut-brain axis, a network wherein microbiome and the central nervous system crosstalk via endocrine, immune, neural, and microbial metabolites signalling pathways.

Volatile compounds of base wines for the production of Lessini Durello sparkling wine

AIM Durello is a sparkling wine produced in the Lessini mountains near Verona. The wine is made from Durella grapes, a native white grape variety with a particularly high acidity. In spite of the small production area (375 ha for only 35 producers), there is a growing interest in this product. However, little is known about the aromatic profiles of these wines. The aim of this work was to characterize the aroma profile of Durella base wines suitable for the production of Lessini Durello sparkling wine. METHODS 14 base wines from Durella grapesfrom different producers were used for this study. Solid Phase Microextraction (SPME) and Solid Phase Extraction (SPE) sampling techniques coupled to GC-MS analysis allowed to identify and quantify a total of 62 volatile compounds. RESULTS Durello base wines showed relatively high levels of vitispirane, ß-damascenone, ß-citronellol and esters.

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.