Terroir 1996 banner
IVES 9 IVES Conference Series 9 Les effets du terroir ou l’expression des potentiels à valoriser

Les effets du terroir ou l’expression des potentiels à valoriser

Abstract

La recherche des effets du Terroir est d’un intérêt majeur pour la fïlière vitivinicole. L’étude des relations Terroir-Vigne-Raisin même si elle est complexe, est fondamentale pour toute la viticulture : en effet, la qualité du raisin doit être le résultat d’une gestion agroviticole de la vigne la plus raisonnée possible, qui doit en premier lieu, respecter un équilibre de production. Le but recherché par le vigneron est l’obtention d’un vin, aboutissement optimisé des interactions Terroir-Cépage. Ce lien au terroir est donc primordial à établir en prenant en compte d’une part le comportement de la vigne (qui en est la cause), et d’autre part, ses effets sur le raisin et finalement sur le vin.

L’intérêt de tous ces aspects est essentiel non seulement pour l’image du producteur, mais surtout pour celle du produit et par conséquent pour l’information et la satisfaction du consommateur. Cette approche est aussi de plus en plus justifiée par le fait que la viticulture, au moins une certaine viticulture, n’a plus pour fin première de produire du “raisin”, mais surtout d’élaborer à partir “d’un raisin”, un vin particulièrement personnalisé, reflet du travail du vigneron en adéquation avec ses terroirs viticoles (Papin, 1996). Pour ces raisons, la connaissance des relations Terroir-Vigne-Raisin permet des avancées considérables pour décrire, analyser, comprendre et gérer, et, au delà, pour identifier les caractéristiques de la typicité des vins qui sont ainsi produits.

DOI:

Publication date: March 25, 2022

Issue: Terroir 1996

Type : Poster

Authors

M. FALCETTl (1), C. ASSELIN (2)

(1) Dip. Prod. Agricola ed Agroalimentare
Istituto Agrario San Michele all’Adige (Trento) Italie
(2) I.N.R.A., Unité Recherches Vigne et Vin
42, rue Georges MOREL, 49071 Beaucouzé Cédex

Tags

IVES Conference Series | Terroir 1996

Citation

Related articles…

NEUROPROTECTIVE AND ANTI-INFLAMMATORY PROPERTIES OF HYDROXYTYROSOL: A PROMISING BIOACTIVE COMPONENT OF WINE

Hydroxytyrosol (HT) is a phenolic compound present in olives, virgin olive oil and wine. HT has attracted great scientific interest due to its biological activities which have been related with the ortho-dihydroxy conformation in the aromatic ring. In white and red wines, HT has been detected at concentrations ranging from 0.28 to 9.6 mg/L and its occurrence has been closely related with yeast metabolism of aromatic amino acids by Ehrlich pathway during alcoholic fermentation. One of the most promising properties of this compound is the neuroprotective activity against pathological mechanisms related with neurode-generative disorders including Alzheimer’s and Parkinson’s disease.

EFFECT OF FUMARIC ACID ON SPONTANEOUS FERMENTATION IN GRAPE MUST

Malolactic fermentation (MLF)¹, the decarboxylation of L-malic acid into L-lactic acid, is performed by lactic acid bacteria (LAB). MLF has a deacidifying effect that may compromise freshness or microbiological stability in wines² and can be inhibited by fumaric acid [E297] (FA). In wine, can be added at a maximum allowable dose of 0.6 g/L³. Its inhibition with FA is being studied as an alternative strategy to minimize added doses of SO₂⁴. In addition, wine yeasts are capable of metabolizing and storing small amounts of FA and during alcoholic fermentation (AF).

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.

Interaction between commercial mannoproteins and phenolic compounds of two red wines from different Portuguese grape cultivars

The interaction between mannoproteins and wine phenolic compounds is a subject of great interest as some studies show the possible impact in color stability and an improvement in the sensory characteristics namely the reduction of red wine astringency.

The use of local knowledge relating to vineyard performance to identify viticultural terroirs in Stellenbosch and surrounds

A terroir represents grouping of homogenous environmental units, or natural terroir units, based on the typicality of the products obtained. Identification and characterisation of terroirs depends on knowledge of environmental parameters, the functioning of the grapevine and characteristics of the final product, which must be placed in a spatial context.