| abstract |
A polysaccharide having a molecular weight of about 5 x 10 3 to 10 x 10 6 as measured by gel permeation chromatography and composed of 5 saccharides, viz. D-glucose, D-galactose, D-glucuronic acid, D-ribose and D-riburonic acid, in a molar ratio of D-glucose : D-galactose : D-glucuronic acid : D-ribose: D-riburonic acid = 10 : 1.8-2.9 : 1.8-2.6 : 0.5-1.7 : 0.5-1.7, with the content of o-acetyl groups in the polysaccharide being 0-10% by weight. |