Biotransformation of R-2-hydroxy-4-phenylbutyric acid by D-lactate dehydrogenase and Candida boidinii cells containing formate dehydrogenase coimmobilized in a fibrous bed bioreactor.

Abstract

R-2-hydroxy-4-phenylbutyric acid (R-HPBA) is an important intermediate in the manufacture of angiotensin converting enzyme inhibitors. In this work, a recombinant D-lactate dehydrogenase (LDH) was used to transform 2-oxo-4-phenylbutyric acid (OPBA) to R-HPBA, with concomitant oxidation of beta-nicotinamide adenine dinucleotide (NADH) to NAD(+). The cofactor… (More)

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