Full Length Research Paper
Abstract
The anthocyanins, cyanidin 3-O-(6’’-O-a-rhamnopyranosyl-b-glucopyranoside) (1) and delphinidin 3-O-(6’’-O-a-rhamnopyranosyl-b-glucopyranoside) (2) isolated from the leaf stalks of cassava (Manihot esculenta 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.
Key words: Cassava, Manihot esculenta, anthocyanins, cyanidin 3-O-(6’’-O-a-rhamnopyranosyl-b-glucopyranoside, delphinidin 3-O-(6’’-O-a-rhamnopyranosyl-b-glucopyranoside).
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