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Original Articles

Characterization of D-Lactate Dehydrogenase Producing D-3-Phenyllactic Acid from Pediococcus pentosaceus

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Pages 853-855 | Received 12 Dec 2011, Accepted 13 Jan 2012, Published online: 22 May 2014
 

Abstract

D-Lactate dehydrogenase (D-LDH) from Pediococcus pentosaceus ATCC 25745 was found to produce D-3-phenyllactic acid from phenylpyruvate. The optimum pH and temperature for enzyme activity were pH 5.5 and 45 °C. The Michaelis-Menten constant (K m), turnover number (k cat), and catalytic efficiency (k catK m) values for the substrate phenylpyruvate were estimated to be 1.73 mmol/L, 173 s−1, and 100 (mmol/L)−1 s−1 respectively.

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