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Microbial transformation of indole-3-acetonitrile to indole-3-acetamide by Nocardia sp. 108

Paper ID Volume ID Publish Year Pages File Format Full-Text
36194 45124 2006 5 PDF Available
Title
Microbial transformation of indole-3-acetonitrile to indole-3-acetamide by Nocardia sp. 108
Abstract

The ability of Nocardia sp. 108 to hydrate indole-3-acetonitrile to indole-3-acetamide was identified. Cell culture showed that Nocardia sp. 108 acrylonitrile-hydrating activity reached its maximum, 1209.8 U/g DCW, after cultivated at 28 °C for 45 h. Under the biotransformation conditions of 28 °C and pH 7.5, the maximal indole-3-acetonitrile conversion ratio and indole-3-acetamide yield were 34.34 and 32.68% (w/w), respectively. Moreover, the Km and Vmax values for the indole-3-acetonitrile biotransformation catalyzed by Nocardia sp. 108 were 1.18 × 10−2 mol/l and 1.16 × 10−3 mol/l min. Ethanol supplemented to the reaction system dramatically enhanced indole-3-acetonitrile aqueous solubility. Furthermore, 4% (v/v) ethyl acetate raised the indole-3-acetonitrile bioconversion capacity 78%.

Keywords
Indole-3-acetoamide; Indole-3-acetonitrile; Nitrile hydratase; Nocardia; Biotransformation
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Microbial transformation of indole-3-acetonitrile to indole-3-acetamide by Nocardia sp. 108
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 8, August 2006, Pages 1746–1750
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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