Terroir 2010 banner
IVES 9 IVES Conference Series 9 Impact of harvest date on the terroir expression and the aroma profile of Touraine Sauvignon wines

Impact of harvest date on the terroir expression and the aroma profile of Touraine Sauvignon wines

Abstract

[English version below]

L’objectif d’une étude sur trois années vise, pour des terroirs différents et connus pour le profil des vins qui en sont issus, à exploiter au mieux le potentiel des raisins en optimisant la date de récolte ; pour chacun des trois terroirs, les minivinifications sont réalisées à partir de trois dates de récolte . Il s’avère, grâce à un suivi analytique important (sol, précurseurs et arômes) et une caractérisation organoleptique bien encadrée (analyse sensorielle pertinente et objective), que le choix de la date de récolte, en fonction du terroir, a une incidence sur le profil du vin et devient un outil pour l’élaborateur. Cela se traduit sur le caractère variétal (cassis, fruits exotiques, agrumes) du vin.

The aim of this three year study is to maximize the revelation of the grapes’ potential by optimizing the harvest dates for different terroirs known for the wine profiles that they produce. For each of these terroirs, mini-vinifications were done from grapes of three harvest dates. A large-scale analytical follow-up (earth, aroma precursors and aromas) and a strictly framed organoleptic characterisation (pertinent and objective sensory analysis) are adopted. All showes that the choice in the harvest date, according to the terroir, has an impact on the wine profile and therefore can become a tool for wine-makers. This effect influences the wines’ varietal character: blackcurrant, exotic and citrus fruits.

DOI:

Publication date: December 2, 2021

Issue: Terroir 2010

Type: Article

Authors

Pascal POUPAULT (1), Vincent COURTIN (2)

1) Institut Français de la Vigne et du Vin (IFV) – Pôle Val de Loire-Centre
46, avenue Gustave Eiffel Ŕ 37100 TOURS
2) Cellule Terroirs Viticoles (CTV)
42, rue Georges Morel – 49070 BEAUCOUZE

Contact the author

Keywords

wine profile, harvest date, organoleptic characterization, aroma precursors

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

Physical-mechanical berry skin traits as powerful indicators of resistance to botrytis bunch rot

The ongoing climate change results in increasing mean air temperature, which is manifested by weather extremes or sudden changes between drought and local heavy rainfalls. These changing conditions are especially challenging for the established grapevine varieties growing under cool climate conditions due to an increased biotic infection pressure. Thus, the scope of most grapevine breeding programs is the selection of mildew fungus-resistant and climatic adapted grapevines with balanced, healthy yield and outstanding wine quality. Since no resistances or candidate genes have yet been described for Botrytis bunch rot (BBR), physical-mechanical traits like berry size and thick, impermeable berry cuticles phenotyped with high-throughput sensors represent novel effective parameters to predict BBR.

Terroir and climate: the role of homoclime matching

Climate is an important component or determinant of terroir, especially at the regional level. One can define three levels of terroir. These are the macro– or regional scale, which applies over tens of kilometres of the landscape. The second level is the meso- scale, which applies over kilometres or hundreds of meters, at the individual vineyard scale.

Impact of nitrogen addition timing on the synthesis of fermentative aromas in alcoholic fermentation

Among the different compounds present in the must, nitrogen is an essential nutrient for the management of the fermentation kinetics but it also plays an important role in the synthesis of fermentative aromas.

Sur la réalité du lien entre le terroir et le produit : de l’analyse sémantique à l’approche écologique

The reflections presented here are a synthesis of a set of research on the construction of a scientific logic concerning the relations between the terroir, the vine, the wine, and on the study of a product, the wine, considered as the resulting from many interactions between factors of various orders. This work has benefited greatly from discussions of an epistemological as well as a technical nature with all the researchers at URVV (Angers) and with our colleagues at the Institut National des Appellations d’Origine, over several years.

Grapegrowing soils

The soil plays a key role in viticulture since it defines the planting depth, development and aeration of the root system and also controls the absorption of mineral elements and water conditions of the plant