一有胞子細菌の生産する高粘性多糖類(第1報)

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タイトル別名
  • High Viscous Polysaccharide Produced by a Spore-forming Bacterium Part I
  • イチユウホウシ サイキン ノ セイサン スル コウネンセイ タトウルイ 1 セイサンブツ ノ カクニン
  • Identification of Product
  • 生産物の確認

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抄録

A spore-forming bacterium, strain No. 271, isolated from soil produced an extracellular polysaccharide in a medium containing glucose by shaking culture for 4 days at 30°C. When fermentation was finished, culture fluids had a viscosity as high as 18, 000 centipoises and contained about 1.6% of polymer.<br> A white polymer was recovered from the viscous fermentation broth by precipitation with methanol in the presence of an electrolyte. The aqueous solution of the polymer had a viscosity comparable with that of guar gum, and the viscosity was enhanced still further by the addition of acids, salts and sugars.<br> The acidic polymer was obtained only from glucose, but the polymer formed from sucrose was the mixture of the acidic and the neutral one. The acidic polymer was composed of glucose, mannose, galactose and glucuronic acid, while the neutral polymer was composed of glucose, mannose, galactose and fructose.

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