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Title 

Preparation of enantiomerically pure (S)-flurbiprofen by an esterase from Pseudomonas sp. KCTC 10122BP

Authors 

Eun Gyo LeeHye Soon WonHyeon Su RoY W RyuBong Hyun Chung

Publisher 

Elsevier

Issue Date 

2003

Citation 

Journal of Molecular Catalysis B:Enzymatic, vol. 26, no. 3, pp. 149-156

Keywords 

enantioselective hydrolysisflurbiprofenpseudomonasrecombinant esteraseescherichia coliestershydrolysisstereochemistrychiral resolutionenzymes

Abstract 

Esterase PF1-K from Pseudomonas sp. KTCC 10122BP was overproduced by the fed-batch culture of Escherichia coli. The soluble expression of esterase PF1-K was achieved by shifting the culture temperature from 37 to 25°C at the time of IPTG induction. The enzyme was partially purified to about 75% purity by a single-step hydrophobic interaction column chromatography. The purified enzyme exhibited a fairly high enantioselectivity towards the hydrolysis of rac-flurbiprofen ethyl ester. The enzymatic chiral resolution was further improved by optimizing the reaction conditions in terms of reaction rate and enantioselectivity. The optimal reaction conditions were found to be 40°C, pH 10.5 and 600mM of initial rac-flurbiprofen ethyl ester. After 90min of batch reaction under the optimal conditions, 50% of the initial rac-flurbiprofen was hydrolyzed with an enantiomeric excess of 99%.

ISSN 

1381-1177

Link 

http://dx.doi.org/10.1016/j.molcatb.2003.05.004

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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