The chemodiversity of wines can reveal a metabologeography expression of cooperage oak wood.
Wine chemical compositions, which result from a complex interplay between environmental factors, genetic factors, and viticultural practices, have mostly been studied using targeted analyses of selected families of metabolites. Detailed studies have particularly concerned volatile and polyphenolic compounds because of their acknowledged roles in the organoleptic and therapeutic properties. However, we show that an unprecedented chemical diversity of wine composition can be unraveled through a nontargeted approach by ultrahigh-resolution mass spectrometry, which provides an instantaneous image of complex interacting processes, not easily or possibly resolvable into their unambiguous individual contributions. In particular, the statistical analysis of a series of barrel-aged wines revealed that 10-year-old wines still express a metabologeographic signature of the forest location where oaks of the barrel in which they were aged have grown.
Gougeon
Régis D
RD
Equipe Eau Molécules actives Macromolécules Activité EA 581, Institut Universitaire de la Vigne et du Vin, Université de Bourgogne, Dijon, France. regis.gougeon@u-bourgogne.fr
Lucio
Marianna
M
Frommberger
Moritz
M
Peyron
Dominique
D
Chassagne
David
D
Alexandre
Hervé
H
Feuillat
François
F
Voilley
Andrée
A
Cayot
Philippe
P
Gebefügi
Istvan
I
Hertkorn
Norbert
N
Schmitt-Kopplin
Philippe
P
D006801:Humans; D013058:Mass Spectrometry; D029963:Quercus / Q000737:chemistry*; D014920:Wine / Q000032:analysis*; D014934:Wood / Q000737:chemistry