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Multi-substrate biodegradation of chlorophenols by defined microbial consortium #MMPMID28330263
Patel BP; Kumar A
3 Biotech 2016[Dec]; 6 (2): ä PMID28330263show ga
In the present study, a defined mixed microbial consortium was investigated for their ability to utilize three different monochlorophenols (MCPs) and 2,4-DCP individually and in the mixture. None of the individual strains were able to utilize 3-CP and 4-CP, but when they were mixed to form defined consortium, they have shown great potential and degradation of high concentration of 3-CP and 4-CP. Spectrophotometric analysis of metabolites during MCPs degradation establishes the presence of 2-chloromaleylacetate. Multi-substrate degradation study of 2,4-DCP in the presence of three MCPs showed the great prospect of microbial consortium for in situ bioremediation. During multi-substrate degradation, the biodegradation rate (mg L?1 day?1) was observed in the order of 2,4-DCP > 2CP > 3CP > 4CP. Biodegradation kinetic of three MCPs using Andrew?s model showed maximum removal rate (Rm) of 2.78, 0.91, 1.82 mg L?1 h?1 for 2-CP, 3-CP and 4-CP, respectively.