Studies on metabolic products of the Penicillium luteum series

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Abstract
Two new polysaccharides from strains of P. luteum series, grown on Czapek-Dox glucose medium, by ethanolic fractionation of dialysed culture filtrates were isolated and described. The dextrorotatory neutral polysaccharide, had D-galactose (88%) as the main component sugar; glucose, mannose and fructose were absent. The levorotatory polysaccharide, was acidic and D-glucose (64%) was the main component sugar; galactose, mannose and fructose were absent. Galactose-con-taining polysaccharide was synthesized by the mold from glucose, galactose, maltose, starch, glycerol, and ethanol but not from acetate, citrate, tartrate, sucrose, dulcitol, mannitol or sorbitol as sole sources of carbon.
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