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Biotransformation of Adiponitrile to 5-cyanovaleramide by Pseudomonas Sp. SY031 Resting Cells
Abstract:
Resting cells of Pseudomonas sp. SY031 were used for the direct transformation of adiponitrile to 5-cyanovaleramide (5-CVAM), which is an important intermediate of azafenidin, a new kind of herbicide with high efficiency, low toxicity and non-pollution. In this study, reaction conditions for this nitrile hydratase mediated conversion were optimized. It was observed that the maximum conversion of adiponitrile to 5-CVAM was in a solution containing 50 mM phosphate buffer (pH 6.4), 10 mM adiponitrile at 35 °C. 10 mM adiponitrile was completely converted into 5-CVAM and adipamide in shaking flasks with 5-CVAM as the main product (9.004 mM) and adipamide as a low yield (0.896 mM), indicating high regio-selectivity of the nitrile hydratase in Pseudomonas sp. SY031.
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204-207
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September 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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