Abstract：
:Four bacterial species each were isolated from soil and a sewage oxidation pond using enrichment culture technique, and the bacterial isolates were identified to belong to the two genera Bacillus and Corynebacterium. The axenic cultures of the isolates utilized monochloroacetic acid (MCA), trichloroacetic acid (TCA), CHCl3 and CCl4 for growth up to 1 g substrate l(-1) (w/v) and growths were enhanced in the mixed cultures of the isolates. The specific growth rate constants in the media ranged from 0.144 to 0.475. This is lower than the comparatively high values observed for the glucose medium, which varied significantly (P < 0.05) between 0.699 and 0.792 h(-1). Serial adaptation of the individual isolates in the organochloride media significantly (P < 0.05) affected the bacteria growth yields. The dehalogenase specific activity observed in the cell-free extracts of the mixed cultures of the isolates was significantly higher (P < 0.05) than those of their respective monocultures. Optimal pH of the dehalogenase activity was between 7.6 and 8.0, while temperature optima were between 30 degrees C and 35 degrees C.
journal_name
Chemospherejournal_title
Chemosphereauthors
Olaniran AO,Babalola GO,Okoh AIdoi
10.1016/s0045-6535(01)00075-3subject
Has Abstractpub_date
2001-10-01 00:00:00pages
45-50issue
1eissn
0045-6535issn
1879-1298pii
S0045-6535(01)00075-3journal_volume
45pub_type
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