KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Production of Lignin-Degrading Enzymes by White Rot Fungi Immobilized in a Rotating Bioreactor

회전생물반응기에 고정화된 백색부후균에 의한 리그닌 분해효소의 생산

  • 조무환 (영남대학교 응용화학공학부) ;
  • 류원률 (영남대학교 응용화학공학부)
  • Published : 2002.02.01
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Abstract

The objective of this study is to investigate optimum condition for lignin peroxidase production by white rot fungi Phanerochaete chysosporium IFO 31249 immobilized in a rotating bioreactor. The maximum lignin peroxidase activity of batch culture in rotating bioreactor was 300 U/L. The optimum rotating speed and packing ratio of support for lignin peroxidase production in a rotating bioreactor were 1 rpm and 20%, respectively. The optimum concentration of $MnSO_4$$\cdot$$H_2O$ for manganese-dependent peroxidase production in a rotating bioreactor was 50 ppm. The sufficient supply of oxygen was the most important factor to achieve maximum lignin peroxidase production. It was possible to produce lignin peroxidase (LiP) and manganese-dependent peroxidase (MnP) for at least 3 times successive repeated-batch cultures, respectively.

본 연구의 목적은 회전생물반응기에 고정화한 P. chrysosporium IFO 31249를 이용하여 LiP 생산의 최적 조건을 조사하는 것이다. 회전생물반응기에서 batch culture시 최대 LiP 활성도는 300 U/L이었다. LiP 생산의 최적 조건은 드림의 회전 속도는 1 rpm, 담체 충진율은 20%이었다. MnP 생산을 위한 $MnSO_4$$\cdot$$H_2O$ 의 최적 농도는 50 ppm이었다. 그리고 산소의 충분한 공급은 LiP 생산의 가장 중요한 인자이었다. 또한 LiP 및 MnP의 생산에 있어 repeated-batch culture가 3번이나 가능하였다.

Keywords

References

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