Trans-Astringin

Yitrac X, Bornet A, Yanderlinde R, Vails JM, Richard T, Delaunay J-C, Merillon J-M, Teissedre P-L. 2005. Determination of stilbenes (8-viniferin, trans-astringin, trans-piceid, cis- and trans-resveratrol, e-viniferin) in Brazilian wines. J Agric Food Chem 53 5664-5669. 

Vitrac, X., Bomet, A., Vanderlinde, R., Vails, J., Richard, T., Delaunay, J.-C., MeriUon, J.-M., Teissedre, P.-L. (2005). Determination of stilbenes (5-viniferin, trani-astringin, trans-friceid, cis- and trani-resveratrol, e-viniferin) in Brazilian wines. J. Agric. Food Chem., 53, 5664-5669. 

Stilbenes are minor compounds in grapes. However, their importance is due to the fact that grape is the main source of stilbenes in diet. Stilbenes are essentially located in grape skin [36, 37] but have also been reported in grape seeds [38] and grape stem [39] (Fig. 83.2g). The main stilbenes in grape are resveratrol (trans and cis) and piceid (trans and cis), but some others have also been described piceatannol, astringin, pterostilbene, s-viniferin, and 8-viniferin [40]. 

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