Application of high-performance liquid chromatography to the study of the biological transformation of adiponitrile.
J L Moreau, S Azza, F Bigey, A Arnaud, P Galzy
Index: J. Chromatogr. B, Biomed. Appl. 656(1) , 197-202, (1994)
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Abstract
A procedure for the assay of nitrile hydratase and amidase activity by high-performance liquid chromatography is described. The method can be used to assay the intermediate compounds resulting from the hydrolysis of adiponitrile into adipic acid, and to determine the kinetics of the hydrolysis of these compounds using whole cells and enzyme extracts. The precision of the method makes it suitable for the determination of the enzyme parameters: Km and Vm (nitrile hydratase and amidase). Using cyanovaleramide as substrate, Km and Vm were respectively 370 mM and 2060 U/mg for nitrile hydratase and 6.6 mM and 33 U/mg for amidase.
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