Terroir 1996 banner
IVES 9 IVES Conference Series 9 Influence du terroir sur la composition en flavonoïdes de la baie de raisin de Cabernet franc en Moyenne Vallée de la Loire

Influence du terroir sur la composition en flavonoïdes de la baie de raisin de Cabernet franc en Moyenne Vallée de la Loire

Abstract

Le terroir offre une grande variabilité de la typicité des vins produits. A la suite de dégustations intégrant plusieurs millésimes, l’analyse factorielle multiple des données sensorielles a fait ressortir un groupe de critères gustatifs contribuant à la notion de “Puissance”, référencé “Puissance et Harmonie”, qui permet de différencier les vins issus de divers terroirs de la Moyenne Vallée de la Loire (Pages et al., 1987). Cette notion fait référence à des données sensorielles regroupant le velouté, l’intensité d’attaque et l’intensité de fin de bouche. Ces critères gustatifs présentent des similitudes importantes avec ceux que l’on accorde aux polyphénols (Asselin et al, 1992). Afin de mieux comprendre l’effet terroir ainsi défini, une analyse détaillée des constituants phénoliques dans les pépins et les pellicules de raisins de Cabernet franc issus de différents terroirs a été réalisée.

DOI:

Publication date: March 25, 2022

Issue: Terroir 1996

Type : Poster

Authors

F. BROSSAUD (1), J. RIGAUD (2), VERONIQUE CHEYNIER (2), C. ASSELIN (1), M. MOUTOUNET (2)

(1) I.N.R.A. Unité de Recherches sur la Vigne et le Vin – 42, Rue Georges Morel -BP 57- 49071 Beaucouzé Cedex
(2) I.N.R.A. – I.P. V. Unité de Recherches des Polymères et des Techniques Physico-Chimiques 2, Place Viala – 34060 Montpellier Cedex

Tags

IVES Conference Series | Terroir 1996

Citation

Related articles…

Physiological and growth reaction of Shiraz/101-14 Mgt to row orientation and soil water status

Advanced knowledge on grapevine row orientation is required to improve establishment, management and outcomes of vineyards on terroirs with different environmental conditions (climate, soil, topography) and in view of a future change to more extreme climatic conditions. The purpose of this study was to determine the combined effect of row orientation, plant water status and ripeness level on the physiological and viticultural reaction of Shiraz/101-14 Mgt.

Effects of mechanical leafing and deficit irrigation on Cabernet Sauvignon grown in warm climate of California

San Joaquin Valley accounts for 40% of wine grape acreage and produces 70% of wine grape in California. Fruit quality is one of most important factors which impact the economical sustainability of farming wine grapes in this region. Due to the recent drought and expected labor cost increase, the wine industry is thrilled to understand how to improve fruit quality while maintaining the yield with less water and labor input. The present study aims to study the interactive effects of mechanical leafing and deficit irrigation on yield and berry compositions of Cabernet Sauvignon grown in warm climate of California.

The effects of cane girdling on berry texture properties and the concentration of some aroma compounds in three table grape cultivars

The marketability of the table grapes is highly influenced by the consumer demand; therefore the market value of the table grapes is mainly characterized by its berry size, colour, taste and texture. Girdling could cause accumulation of several components in plants above the ringing of the phloem including clusters and resulting improved maturity. The aim of the experiments was to examine the effect of girdling on berry texture characteristics and aroma concentration.

Application of a fluorescence-based method to evaluate the ripening process and quality of Pinot Blanc grape

The chemical composition of grape berries at harvest is one of the most important factors that should be considered to produce high quality wines. Among the different chemical classes which characterize the grape juice, the polyphenolic compound, such as flavonoids, contribute to the final taste and color of wines. Recently, an innovative non-destructive method, based on chlorophyll fluorescence, was developed to estimate the phenolic maturity of red grape varieties through the evaluation of anthocyanins accumulated in the berry skin. To date, only few data are available about the application of this method on white grape varieties.

Different yield regulation strategies in semi-minimal-pruned hedge (SMPH) and impact on bunch architecture

Yields in the novel viticulture training system Semi-Minimal-Pruned Hedge (SMPH) are generally higher compared to the traditional Vertical Shoot Positioning (VSP). Excessive yields have a negative impact on the vine and wine quality, which can result in substantial losses in yield in subsequent vintages (alternate bearing) or penalties in fruit quality. Therefore yield regulation is essential. The bunch architecture in SMPH differs from VSP. Generally there is a higher amount but smaller bunches with lower single berry weights in SMPH compared to VSP.