Abstract

AbstractA method is described for the isolation of bacterial polysaccharide B‐1459 from aqueous dispersion as a calcium hydroxide complex. The polysaccharide is liberated in fibrous form from the complex by means of hydrochloric acid in methanol solution. Overall recovery of the polysaccharide from aqueous dispersion is 85%. Direct conversion of the insoluble calcium hydroxide complex to aqueous polysaccharide solution appears to be a low‐cost procedure for preparing viscous solutions for industrial use.

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