Enantioselective oxidation of (RS)-2-phenyl-1-propanol to (S)-2-phenylpropanoic acid with Gluconobacter oxydans: simplex optimization of the biotransformation
F. Molinari et al., Enantioselective oxidation of (RS)-2-phenyl-1-propanol to (S)-2-phenylpropanoic acid with Gluconobacter oxydans: simplex optimization of the biotransformation, TETRAHEDR-A, 10(15), 1999, pp. 3003-3009
The microbial oxidation of racemic 2-phenyl-1-propanol by Gluconobacter oxy
dans DSM 50049 was investigated. Whole bacterial cells were used to produce
(S)-(+)-2-phenylpropanoic acid with high enantiomeric excess (E>200). A si
mplex sequential method was employed as an experimental design to guide the
optimization process. Temperature of 26-28 degrees C, pH 6.0-6.2, substrat
e concentration of 20-25 mM and agitation of 150 rpm have been found the be
st conditions to achieve the highest reaction rates and enantioselectivitie
s. (C) 1999 Elsevier Science Ltd. All rights reserved.