• Title/Summary/Keyword: B-MCM-22

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Optimal Condition for Mycelial Growth of Beauveria bassiana and Its Extracellular Enzyme Activity (백강균(Beauveria bassiana)의 균사체 최적 배양조건 및 효소활성)

  • 민응기;한영환
    • Korean Journal of Microbiology
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    • v.38 no.1
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    • pp.50-53
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    • 2002
  • The optimum temperature and pH for mycelial growth of B. bassiana DGUM 34001 were $24^{\circ}C$ and pH 7.0, respectively. Among the complex media used, mushroom complex medium (MCM) was the most favorable for mycelial growth. When Czapek-Dox medium was used as a minimal medium, glucose was an excellent source for carbon and energy. Soytone and sodium phosphate were favorable constituent for culture medium as a source of organic nitrogen and phosphorus, respectively. When the fungus was grown in MCM broth, the specific activity of extracellular enzyme of ${\alpha}$-amylase, lipase, chitinase, CMCase and pretease were 297.0, 0.058, 0.33, 0.21 and 22.8 units/mg protein, respectively. When various sources of organic nitrogen and chitin were supplemented to determine the production of enzymes, casein and soluble chitosan enhanced the production of extracellular protease and chitinase.