Microbiology and Biotechnology Letters (한국미생물·생명공학회지)

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Enantioselective Hydrolysis of (R,S)-Naproxen Methyl Ester Using Two-step Acetone-treated Candida rugosa Lipase

2단계 아세톤 침전법으로부터 얻어진 Candida rugosa Lipase를 이용한 (R,S)-Naproxen Ester의 광학선택성 수화반응

  • 이은교 (미생물공정 연구실, 생명공학연구소) ;
  • 최순자 (미생물공정 연구실, 생명공학연구소) ;
  • 정봉현 (미생물공정 연구실, 생명공학연구소)
  • Published : 2000.08.01
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Abstract

A novel two-step acetone treatment method was developed to enhance the enantioselectivity of Candida rugosa lipase (CRL) toward the hydrolysis of racemic naproxen methyl ester. The acetone-teated CRL was considerably more enantioselective than the crude CRL, yielding an enantiomeric excess of 98~100%. The crude and acetone-treated CRLs were subjected to anion exchange chromatography, and their chromatography profiles were compared. In consequence, both chromatography profiles were found to be almost identical, resulting in two separate lipase peaks (lipase A and B). The lipase B, which is known to be less enantioselective, was treated with acetone using a two-step treatment method. The enantioselectivity of acetone-treated lipase B was dramatically increased, yielding an enantiomeric excess of 99%.

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References

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