Biodegradation of DDT in Soil under Different Conditions by White Rot Fungi and Laccase Extract from White Rot Fungi

Abstract:

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Biodegradation of 2, 2-bis (p-chlorophenyl) -1, 1, 1-trichloroethane (DDT) in soil by white rot fungi and laccase under different experimental conditions was investigated. DDTs stands for the sum of p, p′-DDE, o, p′-DDT, p, p′-DDD and p, p′-DDT in soil. The results shown that the residues of DDTs in soils with different pH levels decreased by 79%, 76%, 73%, 70% and 67% after 28 days of incubation with white rot fungi and laccase, respectively. The residues of DDTs in different pH soils decreasing order was: pH4.5>pH3.5>pH5.5>pH2.5>pH6.5. The residues of DDTs in soils incubated with white rot fungi and laccase decreased with the increase of pollution levels of DDT, the residues of DDTs decrease by 47%, 56% and 70% after 28 days of incubation with white rot fungi and laccase, respectively. The white rot fungi and the laccase extract from white rot fungi can rapidly and efficiently degrade DDT in soil.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

549-553

DOI:

10.4028/www.scientific.net/AMR.233-235.549

Citation:

W. J. Ma et al., "Biodegradation of DDT in Soil under Different Conditions by White Rot Fungi and Laccase Extract from White Rot Fungi", Advanced Materials Research, Vols. 233-235, pp. 549-553, 2011

Online since:

May 2011

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Price:

$35.00

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