Analysis of the plant drug Wilbrandia ebracteata (Cogn.) Cogn.

Abstract

The plant drug “taiuia” is described in the Brazilian Pharmacopeia as the roots of Cayaponia tayuya (Vell.) Cogn. Popularly, however, other species of Cucurbitaceae are also named “taiuia”. Here, we report that products labeled as C. tayuya, in the Brazilian market, may be Wilbrandia ebracteata (Cogn.) Cogn. The major C-glycosylflavones identified in W. ebracteata were spinosin, swertisin, isoswertisin, vitexin, isovitexin, vicenin-2, orientin and isoorientin.