Paperchromatographic Determination of Anthocyanin contained in the Flower of Pharbitis Nil Chois. “Scarlet O'Hara”
1969 年 82 巻 973 号 p. 278-286
詳細
1969 年 82 巻 973 号 p. 278-286
Six different anthocyanins are contained in the flower of a morning glory cultivar (Ipomea Nil Roth.=Pharbitis Nil Chois. Scarlet O'Hara). It is surprising that all of them are pelargonidin glycosides and four of them are acylated. They were separated from one another by repeated masspaperchromatographic process, and obtained in purified pigment, respectively. Each pigment was subjected to total and partial hydrolysis, saponification, visible and UV spectroscopy, for characterization. Through these experiments, it was found that S2-anthocyanin is pelargonidin 3-diglucosido-5-glucoside (raphanusin), S3 and S4 are caffeoylraphanusin, S5 and S6 are p-coumaroyl-caffeoyl-raphanusin. Further investigation is necessary of S1-anthocyanin, which was, however, postulated to be tetraglucoside of pelargonidin (pelargonidin 3-diglucosido-5-diglucoside or pelargonidin 3-triglucosido-5-glucoside).
