Abstract
The main polysaccharide of A. cylindrospora, [α] D+15.0°, in a highly complicated heteroglycan composed of fucose, mannose, glucose, galactose, N-acetylglucosamine, and N-acetylgalactosamine in a relative ratio of 10: 25: 4: 2: 2: 1 and that of M. mucedo, [α] D+30.4°, contains the same componental sugars in a molar ratio of 10: 25: 2.1: 3.6: 4: 2. The results of periodate oxidation and partial acid hydrolysis of both polysaccharides indicate a similarity in their structural feature.
The minor polysaccharide of A. cylindrospora, [α] D+43.6°, has the same componental sugars as the main polysaccharide but that of M. mucedo, [α] D-65.0°, is an acidic heteroglycan consisting of fucose, galactose, and glucuronic acid.
