Chemical Structure of an Intracellular Polysaccharide of Penicillium chrysogenum : Studies on Fungal Polysaccharides. VI.

Abstract

Gradual partial hydrolysis and methylation studies of the intracellular polysaccharide from P. chrysogenum showed that the structural feature is a straight chain and it contains following units : 1) acid-labile 1→5 linked D-galactofuranose residue, 2) smaller amount of 1→3 linked D-galactopyranose residue, 3) O-β-D-mannopyranosyl-(1→3)-D-mannose, [α]_D+11.1°, 4) O-β-or α-D-mannopyranosyl-(1→2 or →3)-O-β- or α-D-mannopyranosyl-(1→3 or →2)-D-mannose, [α]_D+16.6°. The most probable structure of the polysaccharide is discussed.