Polysaccharides Elaborated by Pullularia pullulans. Part I. The Neutral Glucan Synthesized from Sucrose Solutions.

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Abstract
From the crude polysaccharide isolated from cultures of the fungus Pullularia pullulans in solutions of sucrose, a neutral glucan and an acidic polysaccharide, containing largely glucose, have been obtained. Structural investigation of the former yielded evidence of an essentially linear molecule of more than 250 [alpha]-D-glucopyranose residues linked (1 [forward arrow] 6) and (1 [forward arrow] 4) in the ratio 1:2.