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Title 

Isolation and characterization of a novel e-caprolactamdegrading microbe, Acinetobacter calcoaceticus, from industrial wastewater by chemostat-enrichment

Authors 

S RajooJungoh AhnHong-Weon LeeJoon Ki Jung

Publisher 

Springer Verlag (Germany)

Issue Date 

2013

Citation 

Biotechnology Letters, vol. 35, no. 12, pp. 2069-2072

Keywords 

ε-CaprolactamAcinetobacter calcoaceticusBioremediationChemostat-enrichmentIndustrial wastewaterMicrobial degradation

Abstract 

For the isolation of a ε-caprolactam-degrading microbe from wastewaters of a factory producing caprolactam, we applied a chemostat-enrichment technique with a selective medium containing caprolactam as sole source of carbon and nitrogen. This allowed for the isolation of a novel caprolactam-degrading microbe, identified as Acinetobacter calcoaceticus. The strain had a critical tolerance of 19 g caprolactam l-1 in minimal medium, which is higher than any previously reported caprolactam-degrading microbe. A. calcoaceticus also decreased the caprolactam content in medium by 65 % within 72 h despite the high caprolactam content (10 g l-1). This study highlights the potential use of A. calcoaceticus strain for the bioremediation of recalcitrant synthetic polymers, such as caprolactam.

ISSN 

0141-5492

Link 

http://dx.doi.org/10.1007/s10529-013-1307-2

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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