Identification and quantification of stilbenes in some Tunisian red wines using UPLC-MS and HPLC-DAD
Kamel Arraki | Élodie Renouf | Pierre Waffo-Téguo | Jean-Michel Mérillon | Tristan Richard | Alain Decendit
Seven Tunisian red wines mainly from the Mornag appellation were analyzed for resveratrol and analogues. The wines of each variety were evaporated, concentrated, and then subjected to fractionation and purification using XAD16 and DOWEX column chromatography. In addition to resveratrol, seven stilbenes were identified by UPLC-MS. The stilbenes derived were shown to be piceatannol, piceid, a-viniferin, e-viniferin, hopeaphenol and isohopeaphenol. From the point of view of the presence of resveratrol derivatives, one wine, Sidi Zahia, was the richest qualitatively.
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