Eloi Pale

7-O-methylapigeninidin, an anthocyanidin from Sorghum caudatum

A new anthocyanidin was isolated from the grains of Sorghum caudatum and identified as 7-O-methylapigeninidin on the basis of spectral data. This pigment was found in low concentration both in grains and in leaf sheaths.

Acylated anthocyanins from the flowers of Ipomoea asarifolia

Abstract Among several anthocyanins detected in the flowers of Ipomoea asarifolia, two acylated anthocyanins were isolated and studied using chemical, GC, mass spectrometric and extensive NMR methods (TOCSY-1D, DQF-COSY and HMBC measurements). The first anthccyanin was identified as cyanidin 3-O-[2-O-(6-O-(E- caffeoyl )-β- d -glucopyranosyl )-6-O-(E- caffeoyl )-β- d -glucopyranoside ]-5-O-[β- d - glucopyranoside ] , and the new structure as cyanidin 3-O-[2-O-(6-O-(E-p- coumaroyl )-β- d -glucopyranosyl) -6-O-(E- caffeoyl )-β- d -glucopyranoside ]-5-O-[β- d - glucopyranoside .