A representative mucilage, named Hibiscus-mucilage Mo, was isolated from the roots of Hibiscus moscheutos L.; it was homogeneous by ultracentrifugal analysis, electrophoresis, and gel chromatography. Its intrinsic viscosity in aqueous solution was 32.2. It is a partially acetylated, acidic polysaccharide of molecular weight ≈1,900,000, and is composed of l-rhamnose: d-galacturonic acid: d-glucuronic acid in approximately equimolar ratio. Methylation of the carboxyl-reduced derivative and partial hydrolysis studies indicated a repeating unit of the following structure [see in the text].
Publication DOI: 10.1016/S0008-6215(00)90327-6Journal NLM ID: 0043535Publisher: Elsevier
Institutions: Kyoritsu College of Pharmacy, Tokyo, Japan
Methods: 1H NMR, partial acid hydrolysis, TLC, acid hydrolysis, methylation analysis, CC, cellulose acetate membrane electrophoresis, glass-fiber paper electrophoresis; PAGE