• Title/Summary/Keyword: Phytase-producing Microorganism

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Phytase-producing Microorganisms and Their Effects on the Fermentation of Soybean and Corn Meals -Isolation of Phytase-producing Microorganisms and Conditions for Enzyme Production- (콩과 옥수수 가루의 발효과정에서의 Phytase 생산균과 그들의 발효에 미치는 영향 - Phytase 생산균의 분리와 효소생산조건 -)

  • 강성구;강성국;정희종
    • Microbiology and Biotechnology Letters
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    • v.16 no.6
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    • pp.433-473
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    • 1988

  • Two isolates of C-7 and S-34, which were identified as Bacillus licheniformis and Enterobacter cloacae, were shown the highest phytase productivities among the 23 and 44 strains isolated from the fermenting corn and soybean meals, respectively. The phytase productivity with B. lichenifrmis was maximized at pH 6.0, 3$0^{\circ}C$ after 5 days of incubation and E. cloacae was maximized at pH 1.0, 35$^{\circ}C$ after 5 days of incubation. The bacterial phytase productivity with each bacterium was significantly increased or decreased by the addition of various concentrations of 6 carbon and 7 nitrogen sources including glucose, sucrose, KNO$_3$, and NH$_4$Cl.

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