Terroir 1996 banner
IVES 9 IVES Conference Series 9 Analyse du rôle du terroir dans la définition d’une appellation d’origine

Analyse du rôle du terroir dans la définition d’une appellation d’origine

Abstract

In France, the definition of appellations of origins is entrusted to the Institut National des Appellations d’Origine. (‘NAO). With the increase in price of appellations of origin vine­yards and considering the interests at stake, Institut National des Appellations d’Origine and the Institut National de Recherche Agronomique (INRA) established a work group in 1993 in order to study the “terroir-wine” relationship as precisely as possible, taking into account the knowledge acquired by researchers of the INRA and the experience in the field of the agents of the INAO. Four years of work by this group have allowed for significant progress to be made in the knowledge of the role of terroir in the definition of appellations of origin in France. Thus, the group carried out, among other things, a research based on the different situations in France on the respective importance of natural factors and human factors in the conception of AOC (Appellations d’Origine Contrôlées); it demonstrated how the historical and human evolution of certain regions have led to the recognition of several appellations within identical terroirs or group of terroirs, or the definition of certain AOCs within several different terroirs. This study clearly specified the respective rotes of natural factors (soil, climate) and humanfactors in the definition of AOC. It shows that in certain cases, human factors play a ro/e which is much more important than what was acknowl­edged so far. However, it does not diminish the essential role of terroir as an exceptional natural medium for the vineyard.

DOI:

Publication date: March 2, 2022

Issue: Terroir 1998

Type: Article

Authors

JACQUES FANET

I.N.A.O., 138 Champs Elysées, 75008 PARIS

Tags

IVES Conference Series | Terroir 1998

Citation

Related articles…

Grapevine root system architecture: empirical insights and first steps towards in silico studies

Root System Architecture (RSA) is crucial for plant resilience and resource uptake, yet remains underexplored in viticulture.

Bio-protection by one strain of M. Pulcherrima: microbiological and chemical impacts in red wines

In oenology, bio-protection consists in adding bacteria, yeasts or a mixture of microorganisms on grape must before fermentation in order to reduce the use of chemical compounds such as sulphites.

Evaluation of methods used for the isolation and characterization of grape skin and seed, and wine tannins

Validation of the phloroglucinolysis and RP-HPLC method showed selectivity and repeatability within acceptable limits for all investigated matrices. Recovery of polymeric phenols by SPE was also acceptable.

SENSORY DEFINITION OF A TECHNICAL UNAVOIDABLE TRANSFER OF AROMA COMPOUNDS VIA SEALING IN A BOTTLING LINE IN ORDER TO PREVENT PROSECUTION DUE TO FRAUDULENT AROMATIZATION OF A SUBSEQUENTLY FILLED WINE

In 2020, 12% of all bottled German wines were aromatized, which may increase further due to rising popularity of dealcoholized wines. As sealing polymers of a bottling line absorb aroma compounds and may release them into regular wines in the next filling¹, this unintentional carry-over bears the risk to violate the legal ban of any aromatization of regular wine. However, following EU legislation, German food control authorities accept a technical unavoidable transfer of aroma compounds, if this is of no sensory significance.

OTA DEGRADATION BY BACTERIAL LACCASEST

Laccases from lactic acid bacteria (LAB) are described as multicopper oxidase enzymes with copper union sites. Among their applications, phenolic compounds’ oxidation and biogenic amines’ degradation, have been described. Besides, the role of LAB in the toxicity reduction of ochratoxin A (OTA) has been reported (Fuchs et al., 2008; Luz et al., 2018). Fungal laccases, but not bacterial laccases, have been screened for OTA and mycotoxins’ degradation (Loi et al., 2018). OTA is a mycotoxin produced by some fungal species, such as Penicillium and Aspergillus sp., which infect grape bunches used for winemaking.