PMID- 18590926 OWN - NLM STAT- MEDLINE DCOM- 20090210 LR - 20220409 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 73 IP - 1 DP - 2008 Aug TI - Laccase mediated biodegradation of 2,4-dichlorophenol using response surface methodology. PG - 81-5 LID - 10.1016/j.chemosphere.2008.05.005 [doi] AB - The effects of different environmental parameters, i.e., pH, temperature, time and enzyme concentration on the biodegradation of 2,4-dichlorophenol (2,4-DCP) in aqueous phase was evaluated with laccase from Pleurotus sp. using response surface methodology (RSM) in the present investigation. The Box-Behnken design of experiments was used to construct second order response surfaces with the investigated parameters. It was observed that the maximum degradation efficiency of approximately 98% was achieved at pH 6, temperature of 40 degrees C, time 9h and an enzyme concentration of 8 IU ml(-1). The adequacy of the model was confirmed by the coefficient of multiple regression, R(2) and adjusted R(2) which were adjudged to be 87.9% and 73.6%, respectively indicating a reasonably good model for practical implementation. Despite the fact that many successful attempts have been taken in the past for biodegradation of 2,4-DCP using whole cells, the present study emphasizes the fastest biodegradation of 2,4-DCP, a potent xenobiotic compound. FAU - Bhattacharya, S S AU - Bhattacharya SS AD - Microbial Biotechnology and Downstream Processing Laboratory, Indian Institute of Technology, Kharagpur 721302, India. FAU - Banerjee, R AU - Banerjee R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080630 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Chlorophenols) RN - 0 (Environmental Pollutants) RN - 0 (Xenobiotics) RN - EC 1.10.3.2 (Laccase) RN - R669TG1950 (2,4-dichlorophenol) SB - IM EIN - Chemosphere. 2009 Jan;74(3):479 MH - Biodegradation, Environmental MH - Chlorophenols/analysis/*metabolism MH - Environmental Pollutants/analysis/*metabolism MH - Hydrogen-Ion Concentration MH - Laccase/*metabolism MH - Models, Statistical MH - Pleurotus/metabolism MH - Temperature MH - Time Factors MH - Xenobiotics/analysis EDAT- 2008/07/02 09:00 MHDA- 2009/02/12 09:00 CRDT- 2008/07/02 09:00 PHST- 2008/01/13 00:00 [received] PHST- 2008/04/26 00:00 [revised] PHST- 2008/05/05 00:00 [accepted] PHST- 2008/07/02 09:00 [pubmed] PHST- 2009/02/12 09:00 [medline] PHST- 2008/07/02 09:00 [entrez] AID - S0045-6535(08)00624-3 [pii] AID - 10.1016/j.chemosphere.2008.05.005 [doi] PST - ppublish SO - Chemosphere. 2008 Aug;73(1):81-5. doi: 10.1016/j.chemosphere.2008.05.005. Epub 2008 Jun 30.