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Appl. Environ. Microbiol., 12 1996, 4675-4677, Vol 62, No. 12
Copyright © 1996, American Society for Microbiology

Enrichment of mixed cultures capable of aerobic degradation of 1,2- dibromoethane

LM Freitas dos Santos, DJ Leak and AG Livingston
Department of Chemical Engineering and Chemical Technology, Imperial College, London, United Kingdom. l.santos@ic.ac.uk

1,2-dibromoethane (DBE) is a common environmental contaminant; it is potentially carcinogenic and has been detected in soil and groundwater supplies. Most of the biodegradation studies to date have been performed under anaerobic conditions or in the context of soil remediation, where the pollutant concentration was in the parts per billion range. In this work a mixed bacterial culture capable of complete aerobic mineralization of concentrations of DBE up to 1 g liter(-1) under well-controlled laboratory conditions was enriched. In order to verify biodegradation, formation of biodegradation products as well as the disappearance of DBE from the biological medium were measured. Complete mineralization was verified by measuring stoichiometric release of the biodegradation products. This mixed culture was found to be capable of degrading other halogenated compounds, including bromoethanol, the degradation of which has not been reported previously.


This article has been cited by other articles:

  • Poelarends, G. J., van Hylckama Vlieg, J. E. T., Marchesi, J. R., Freitas Dos Santos, L. M., Janssen, D. B. (1999). Degradation of 1,2-Dibromoethane by Mycobacterium sp. Strain GP1. J. Bacteriol. 181: 2050-2058 [Abstract] [Full Text]  


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