Efficient immobilization technique for enhancement of cellobiose dehydrogenase activity on silica gel

Eunji Kim, Yoon Seok Song, Han Suk Choi, Hah Young Yoo, Seong Woo Kang, Kwang Ho Song, Sung Ok Han, Seung Wook Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)


In this study, cellobiose dehydrogenase (CDH) of Phanerochaete chrysosporium ATCC 32629 was immobilized on silica gel for the further application of CDH in the saccharification process of biomass. To prevent the loss of enzyme activity during enzyme immobilization, the pretreatment of CDH was performed by various pretreatment materials before immobilization. When pretreated enzymes were used in immobilization, the activities of immobilized CDH were higher than non-pretreated CDH even in same amounts of immobilized protein. The specific activity of pretreated immobilized CDH with lactose was about two times higher than that of non-pretreated immobilized CDH. Moreover, the pretreated immobilized CDH showed better reusability than non-pretreated immobilized CDH, with 67.3% of its original activity being retained after 9 reuses.

Original languageEnglish
Pages (from-to)55-59
Number of pages5
JournalBiotechnology and Bioprocess Engineering
Issue number1
Publication statusPublished - 2012 Feb 1



  • Cellobiose dehydrogenase (CDH)
  • Immobilization
  • Phanerochaete chrysosporium
  • Pretreatment
  • White-rot fungi

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology
  • Biomedical Engineering
  • Bioengineering

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