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A novel application of whole cells of Nocardia corallina B-276 for the deracemisation of ibuprofen is reported. This microorganism successfully hydrolysed ibuprofen nitrile to ibuprofen amide, and ibuprofen amide to ibuprofen, using a suspension of cells in a potassium phosphate buffer solution (0.1 M, pH = 7.0). These results can be explained by the presence of NHase and amidase enzymes, but the reactions are not enantioselective and low ee values were obtained. However, (R)-ibuprofen was isolated with >99% ee by a deracemisation process catalysed by N. corallina B-276. This is the first report of this kind of catalysis with this microorganism.
Nocardia corallina, Hydrolysis, amidase, <em>Nocardia corallina</em>; deracemisation; ibuprofen; nitrile hydratase; amidase, Organic chemistry, nitrile hydratase, Ibuprofen, Stereoisomerism, Amides, Article, Nocardia, Amidohydrolases, deracemisation, QD241-441, Bacterial Proteins, Nitriles, Biocatalysis, Biotransformation, Hydro-Lyases, ibuprofen
Nocardia corallina, Hydrolysis, amidase, <em>Nocardia corallina</em>; deracemisation; ibuprofen; nitrile hydratase; amidase, Organic chemistry, nitrile hydratase, Ibuprofen, Stereoisomerism, Amides, Article, Nocardia, Amidohydrolases, deracemisation, QD241-441, Bacterial Proteins, Nitriles, Biocatalysis, Biotransformation, Hydro-Lyases, ibuprofen
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