A mucilage, Hibiscus-mucilage ML, from leaves of Hibiscus moscheutos was found to be peptidoglycan with a molecular weight of ca 1800000. Its intrinsic viscosity in aqueous solution was 26.1. The major constituent is a partially acetylated, acidic polysaccharide composed of L-rhamnose: D-galactose: D-glucose: D-galacturonic acid: D-glucuronic acid in a molar ratio of 18:12:1:12:11. Chemical and physico-chemical studies indicated its main structural features. It had considerable hypoglycemic activity when administered to mice.
ASJC Scopus subject areas