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Decolorization of a Dye by Immobilized Lignin Degrading Enzymes Generated from Transformants of Merulius tremellosus Fr.

아교버섯 형질전환체가 생산한 리그닌분해 고정화효소에 의한 염료 탈색

  • Min, Dong-Suk (Department of Biochemistry, Kangwon National University) ;
  • Ryu, Sun-Hwa (Division of Wood Chemistry and Microbiology, Korea Forest Research Institute) ;
  • Kim, Myung-Kil (Division of Wood Chemistry and Microbiology, Korea Forest Research Institute) ;
  • Choi, Hyoung-T. (Department of Biochemistry, Kangwon National University)
  • 민동숙 (강원대학교 생화학과) ;
  • 유선화 (국립산림과학원 화학미생물학과) ;
  • 김명길 (국립산림과학원 화학미생물학과) ;
  • 최형태 (강원대학교 생화학과)
  • Received : 2012.09.03
  • Accepted : 2012.09.26
  • Published : 2012.09.30

Abstract

Lignin degrading enzymes from white rot fungi show broad substrate specificities, and therefore they can degrade variety of recalcitrant compounds. We have used three different protocols for the generation of immobilized laccase and manganese peroxidase crude enzymes from the genetically transformed strains of Merulius tremellosus Fr. These immobilized enzymes were used in the decolorization of Remazol Brilliant Blue R (RBBR), and they showed about 75% decolorization rates during the 48 h reactions. Although the decolorization efficiency decreased by 10-15% after a repeated use of the immobilized enzymes, these can be reused in various degrading reactions.

Keywords

Merulius tremellosus;decolorization;immobilized enzyme;laccase;manganese peroxidase

Acknowledgement

Supported by : 국립산림과학원

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