Abstract: | Polysaccharides were separated from mycelia and culture filtrates of the filamentous fungi Aspergillus niger and Penicillium chrysogenum, and purified by column chromatography on Sephadex G-50, DEAE- and CM-cellulose, successively. No nitrogen and phosphorus were detected in the polymer, and the sugar components were observed to be galactose and mannose. The polysaccharides were confirmed to be galactomannans which were easily hydrolyzed by weak acid, liberating galactofuranose and oligosugar in dialyzable fractions. |