Communication Dans Un Congrès Année : 2023

An overview of the impact of clone, environmental factors and viticultural techniques on rotundone concentration in red wines

Résumé

Context and purpose of the study – Rotundone is the main aroma compound responsible for peppery notes in red wine. This positive and very potent molecule has an odor threshold of 8 ng/L in water and 16 ng/L in red wine. It has been detected in several grape varieties with some of the highest concentrations recorded in Syrah, Duras, Tardif and Noiret, an interspecific hybrid grown in the North-East of the USA. If several winemaking practices have been identified to lower rotundone in wine, up to date, no enological solution has proved its efficiency to maximize it. This means that efforts to produce high rotundone wines must be undertaken in vineyards. This work provides practical ways that can be used by winegrowers to modulate rotundone levels in their wines.

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hal-05007279 , version 1 (27-03-2025)

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  • HAL Id : hal-05007279 , version 1

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Olivier Geffroy, T. Baerenzung Dit Baron, M. Denat, Didier Kleiber, Alban Jacques. An overview of the impact of clone, environmental factors and viticultural techniques on rotundone concentration in red wines. 22nd GiESCO meeting, Jul 2023, Ithaca, United States. ⟨hal-05007279⟩
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