Soil chemistry and meteorological conditions influence the elemental profiles of West European wines - INSA Toulouse - Institut National des Sciences Appliquées de Toulouse Access content directly
Journal Articles Food Chemistry Year : 2019

Soil chemistry and meteorological conditions influence the elemental profiles of West European wines

Abstract

Elemental profiles of wines have been used successfully to distinguish their geographical provenience around the world; however, underlying mechanisms are poorly understood. In this study, Ba, Ca, Mg, Mn and Sr contents were determined in 215 wines from several West European wine-growing areas using an easy-to-perform analysis based on ICP-OES. Major environmental and wine-making parameters (soil type as "calcareous" or not, rainfall, temperature and wine color) were used to explain variations within the dataset. The combined effects of wine-making processes (expressed by wine color) and soil type explained 28.5% of total variance. The effect of climatic conditions explained 24.1% of variance and could be interpreted as intensity of drought stress. Finally, carbonate occurrence in soils and climatic conditions systematically influenced the elemental composition of the wines. These findings provide insights into the mechanisms underlying elemental fingerprinting and allow prediction of which wine-growing regions can easily be distinguished based on elemental profiles as a marker of the terroir in viticulture.
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Dates and versions

hal-02501076 , version 1 (20-09-2020)

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Simon Blotevogel, Eva Schreck, Christophe Laplanche, Philippe Besson, Nicolas Saurin, et al.. Soil chemistry and meteorological conditions influence the elemental profiles of West European wines. Food Chemistry, 2019, 298, pp.125033. ⟨10.1016/j.foodchem.2019.125033⟩. ⟨hal-02501076⟩
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