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1 Laboratoire des Sciences de la Vigne-lUVV-Université de Bourgogne-BP138-21004 Dijon
cedex. France
2 Laboratoire d'
nologie-UFR Sciences-Université de Reims-BP1039-51687
Reims-France
3 FIBL-Ackerstrasse-Postfach-CH-5070 Frick-Switzerland.
The concentrations of trans-and cis-isomers of four stilbenes produced by grapevines piceid, resveratrol, resveratrol dehydrodimer, and pterostilbene were determined in wines from Burgundy and Switzerland. Analyses were carried out by direct injection high performance liquid chromatography. All red wines studied contained high levels of piceid and resveratrol, but no pterostilbene. Resveratrol dehydrodimer was also detected. It is the first time that this compound is reported as a constituent of wine.
Key words: resveratrol, wine, stilbenes
Submitted on June 16, 1999
Revised on December 12, 1999
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