Enantioselective production of levofloxacin by immobilized porcine liver esterase

Sang Yoon Lee, Byung Hyuk Min, Sung Ho Hwang, Yoon Mo Koo, Choul Kyun Lee, Seong Won Song, Sun Young Oh, Sang Min Lim, Sang Lin Kim, Dong II Kim

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Porcine liver esterase, which cleaves ofloxacin butyl ester enantioselectively to levofloxacin, was successfully immobilized in calcium alginate and polyacrylamide gel. Immobilized esterase in 5% (w/v) calcium alginate exhibited 58% immobilization efficiency and could be reused five times without severe loss of enzyme activity. On the other hand, entrapped esterase in polyacrylamide gel, composed of 20% of total monomer and 8.3% of cross-linking agent, could be reused 10 times, and 51% of enzyme activity remained after the 10th batch without decrease of enantioselectivity. Compared with entrapped methods, significant reduction of enzyme activity was found in the case of physical adsorption on to QAE-Sephadex.

Original languageEnglish
Pages (from-to)1033-1037
Number of pages5
JournalBiotechnology Letters
Volume23
Issue number13
DOIs
StatePublished - 2001

Bibliographical note

Funding Information:
This work was supported by the Center of Advanced Bioseparation Technology, Inha University. The support is deeply appreciated.

Keywords

  • Immobilized enzyme
  • Levofloxacin
  • Ofloxacin
  • Porcine liver esterase

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