Journal of Science and Geosciences

Extraction of anthocyanins from cassava leaf stalks (Manihotesculenta Crantz)

Abstract


Robert Byamukama, Jane Namukobe and Bernard Kiremire

The anthocyanins, cyanidin 3-O-(6’’-O-?-rhamnopyranosyl-?-glucopyranoside) (1) and delphinidin 3-O- (6’’-O-?-rhamnopyranosyl -?-glucopyranoside) (2) isolated from the leaf stalks of cassava (Manihotesculenta Crantz) by a combination of chromatographic techniques, and their structures were elucidated mainly by the use of homo- and heteronuclear magnetic resonance spectroscopy. The relative amounts of 1 and 2 in the extracts were approximately 92 and 4%, respectively. The absolute amount was 124 mg/100 g.

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