Abstract
On the basis of chemical and physicochemical evidence, two major saponins named Mi-saponin A and Mi-saponin B, which were isolated previously from the seed kernels of Madhuca longifolia (L.) MACBRIDE (syn. Bassia longifolia L.), have been elucidated to be expressed respectively as 3-O-β-D-glucopyranosyl-28-O-[α-L-rhamnopyranosyl (1→3)-β-D-xylopyranosyl (1→4)-α-L-rhamnopyranosyl (1→2)-α-L-arabinopyranosyl]-protobassic acid (9) and 3-O-β-D-glucopyranosyl-28-O-{3-O-β-D-apio-D-furanosyl-4-O-[α-L-rhamnopyranosyl (1→3)-β-D-xylopyranosyl]-α-L-rhamnopyranosyl (1→2)-α-L-arabinopyranosyl}-protobassic acid (10).
