抄録
An extracellular polysaccharide (I) was isolated from the viscous culture filtrate of S. libertiana and subjected to methylation study, enzymic hydrolysis and Smith degradation. From the results, I was concluded to be a polysaccharide composed of a backbone of β-(1→3)-linked D-glucopyranosyl residues and possessed a single β-n-glucopyranosyl residue joined through C-6 of every third D-glucopyranosyl residue of the backbone.
