Abstract
The enzymatic synthesis of N-substituted acrylamides (N-isopropyl acrylamide and N, N-dimethylaminopropyl acrylamide) was demonstrated for the first time. The Rhodococcus erythropolis 37 strain, exhibiting acylamidase activity, was used as a source of enzyme, and water-dissolved acrylamide and isopropylamine/dimethylaminopropylamine served as substrates. The optimum conditions for the synthesis of acrylamide N-substitutes were determined using N-isopropyl acrylamide. The yield of the product was maximum at pH 9.5–10.5, substrate (acrylamide/isopropylamine) ratio within the range from 1.3: 1 to 2: 1, and absolute substrate concentrations of 8.0 (acrylamide) and 4.0% (isopropylamine). These conditions allowed for the synthesis of 22 g/L of N-isopropyl acrylamide.
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Abbreviations
- AA:
-
acrylamide
- GC:
-
gas chromatography
- DIMAPA:
-
N,N-dimethylaminopropyl acrylamide
- IPA:
-
isopropylamine
- IPAA:
-
N-isopropyl acrylamide
- AAC:
-
acrylic acid
- St:
-
acetamide (standard)
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Original Russian Text © K.V. Lavrov, G.A. Larikova, A.S. Yanenko, 2012, published in Biotekhnologiya, 2012, No. 4, pp. 26–30.
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Lavrov, K.V., Larikova, G.A. & Yanenko, A.S. Novel biocatalytic process of N-substituted acrylamide synthesis. Appl Biochem Microbiol 49, 702–705 (2013). https://doi.org/10.1134/S0003683813080048
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DOI: https://doi.org/10.1134/S0003683813080048