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…

Evaluation of intravarietal variability and selection for tolerance to downy mildew: The case of Antão Vaz variety in Portugal 

Antão Vaz is a Portuguese white grapevine variety grown mainly in the wine-growing regions of Southern Portugal, particularly in the Alentejo, Lisbon and Setúbal peninsula regions. It is a very vigorous and productive variety, giving the wines a strong identity. It needs heat and sunlight and prefers deep and dry soils, which makes it tolerant to scald caused by the high summer temperatures of Southern Portugal. However, this variety is very susceptible to downy mildew, caused by plasmopara viticola, a very destructive disease in years with rainy springs.

Grapevine responses to Botrytis cinerea infection: noble rot versus grey rot

The intricate relationship between the necrotrophic pathogen Botrytis cinerea and grape berries (Vitis vinifera spp.) can lead to the development of either the desirable noble rot (NR) or the unfavourable grey rot (GR), depending on the prevailing weather conditions.

Impact of defoliation on leaf and berry compounds of Vitis vinifera L. Cv. Riesling investigated using non-destructive methods)

Climate change has a strong impact on the earlier onset of important phenological stages and plant development in viticulture.

Differences in metabolism among species and hybrids of the genus Saccharomyces during wine fermentation unveiled by multi-omic analysis 

Yeast species S. cerevisiae, S. uvarum, S. kudriavzevii and their hybrids present clear metabolic differences, even when we compared S. cerevisiae wine versus wild strain. These species and hybrids produced significantly higher amounts of glycerol, organic acids, 2,3-butanediol, and 2-phenyl ethanol and a reduction of the ethanol yield, properties very interesting in the sector to deal with climate change effects. To understand the existing differences, we have used several omics techniques to analyze the dynamics of the (intra- and extracellular) metabolomes and/or transcriptomes of representative strains of S. cerevisiae, S. uvarum, S. kudriavzevii, and hybrids.

Influence of the type of flavonol and the presence of mannoproteins in the copigmentation with malvidin 3-O-glucoside

To study the copigmentation between different wine flavonols (myricetin, quercetin, kaempferol, isorhamnetin and syringetin 3-O-glucosides) and malvidin