Isolation and identification of Crystalline Cellulose Hydrolyzing Bacterium and its Enzymatic Properties

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概要

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• A bacterium, strain CB4,which produced an extracellular extracellular enzyme with strong hydrolyzing activity on crystalline cellulose, was isolated from brewery sewage. Strain CB4 was identified as Cellulomonas uda from its taxonomical characteristics. However, it differed greatly from other Cellulomonas strains, including the type strain of Cellulomonas uda, in production of a cellulolytic enzyme. The maximal activity for hydrolyzing crystalline cellulose was obtained by cultivation of CB4 in medium containing crystalline cellulose and Polypepton at 30℃ for 2 days. Activities for hydrolyzing crystalline cellulose, CM-cellulose and cellobiose were detected in the culture filtrate. The optimum pH and temperature for the crystalline celulose hydrolyzing activity were pH 5.5 and 45-50℃, respectively, and the enzyme was activated by Mn<2+>, Co<2+> and Ca<2+>.

• 公益社団法人日本生物工学会の論文
• 1982-08-25

著者

• KITAMURA Kumpei

  The Research Laboratories of Kirin Brewery Co.

• Nakamura Katsumi

  The Research Laboratories Of Kirin Brewery Co. Ltd.

関連論文

• Lysis of Yeast Cells Showing Low Susceptibility to Zymolyase
• Isolation and identification of Crystalline Cellulose Hydrolyzing Bacterium and its Enzymatic Properties
• A High Yeast Cell Wall Lytic Enzyme-Producing Mutant of Arthrobacter luteus
• Effect of Culture Medium on Susceptibility of Yeast Cells to Zymolyase
• Re-examination of Zymolyase Purification
• A protease that participates in yeast cell wall lysis during zymolyase digestion.

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