한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)

  • 제40권5호
  • /
  • Pages.282-287
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  • 2007
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  • 0374-8111(pISSN)
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  • 2287-8815(eISSN)
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)
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연안 갯벌에서 분리한 Chloroaniline 화합물 분해 미생물의 특징

Characterization of Chloroanilines-degrading Bacteria Isolated from Seaside Sediment

  • Kang, Min-Seung (Department of Food Science & Technology, Pukyong National University) ;
  • Kim, Young-Mog (Department of Food Science & Technology, Pukyong National University)
  • 발행 : 2007.10.31
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초록

Chloroanilines are aromatic amines used as intermediate products in the synthesis of herbicides, azo-dyes, and pharmaceuticals. 3,4-dichloroaniline (DCA) is the degradation product of some herbicides (diuron, propanil, and linuron) and of trichlorocarbanilide, a chemical used as an active agent in the cosmetic industry. The compound, however, is considered a potential pollutant due to its toxicity and recalcitrant property to humans and other species. With the increasing necessity for bioremediation, we sought to isolate bacteria that degraded 3,4-DCA. A bacterium capable of growth on 3,4-DCA as the sole carbon source was isolated from seaside sediment using a dilution method with a culture enriched in 3,4-DCA. The isolated strain, YM-7 was identified to be Pseudomonas sp. The isolated strain was also able to degrade other chloroaniline compounds. The isolated strain showed a high level of catechol 2,3-dioxygenase activity on exposure to 3,4-DCA, suggesting that this enzyme is an important factor in 3,4-DCA degradation. The activity toward 4-methylcatechol was 53.1% that of catechol, while the activity toward 3-methylcatechol, 4-chlorocatechol and 4,5-chlorocatechol was 18.1, 33.1, and 6.9%, respectively.

키워드

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피인용 문헌

  1. Isolation of a Nonylphenol-degrading Microbial Consortium vol.44, pp.4, 2011, https://doi.org/10.5657/KFAS.2011.0325