Microbiology and Biotechnology Letters (한국미생물·생명공학회지)

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Optimal Production and Characterization of Fibrinolytic Enzyme from Fomitella fraxinea Mycelia.

Fomitella fraxinea 균사체로부터 Fibrin분해효소의 최적생산 및 효소적 특성

  • 이종석 (부산대학교 자연과학대학 미생물학과) ;
  • 백형석 (부산대학교 자연과학대학 미생물학과) ;
  • 박상신 (동국대학교 자연과학대학 생명공학과)
  • Published : 2002.12.01
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Abstract

investigated to maximize the production of fibrinolytic enzyme from Fomitella fraxinea mycelia. Among the tested media, Coriolus versicolor medium (CVM) showed the highest production for the enzyme. 2% galactose, 0.6% yeast extract and 0.1% $NaNO_3$, 0.1% $K_2HPO_4$, and 0.05% $MgSO_4$.$7H_2O$ as carbon, nitrogen, phosphorus, and inorganic salt sources resulted in the maximum level of the enzyme activity, respectively. The enzyme production from F. fraxinea was reached to highest level after the cultivation for 10 days at $25^{\circ}C$ and pH 9. The enzyme activity of culture supernatant was most active at $40^{\circ}C$ and pH 10. The activity of the enzyme was inhibited by phenylmethylsulfonylfluoride and aprotinin, suggesting that it is a serine protease.

아카시재목 버섯 균사체로부터 혈전용해효소를 생산하기 위한 최적 배양조건을 조사하였다. 복합배지 중 CVM이 가장 우수하였으며, 탄소원, 질소원, 인산원 및 무기질원으로 각각 2% galactose, 0.6% yeast extract와 0.1% $NaNO_3$, 0 0.1 % $K_2HPO_4$, 및 0.05% $MgSO_4$. $7H_2O$의 첨가에 의하여 효소의 활성이 가장 증가하였다. 따라서 F. fraxinea로부터 혈전용해효소를 생산하기 위한 최적 배지조건은 2% galactose, 0.6% yeast extract, 0.1 % $NaNO_3$, 0.1 % $K_2HPO_4$ 및 0.05% $MgSO_4$. $7H_2O$이다. 이상의 배지를 사용하여 배양온도 $25^{\circ}C$ 초기 pH 9에서 10일 동안 배양하였을 때 효소의 생산이 가장 높은 결과를 나타내었다. 배양액 중의 효소의 최적 온도 및 pH는 $40^{\circ}C$ 및 pH 10이었다. 본 효소의 활성이 PMSF와 aprotinin에 의하여 완전히 억제되는 것으로 보아 본 효소가 senne protease 계열의 효소임을 추정할 수 있었다.

Keywords

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