A novel approach to stimulate the biphenyl-degrading potential of bacterial community from PCBs-contaminated soil of e-waste recycling sites
[Display omitted] •Effect of SRpf on the performance of biphenyl biodegradation was evaluated.•Biphenyl at concentration of 1500mg/L was almost completely degraded in 24h.•Six biphenyl-utilizing strains were isolated using SRpf.•A novel approach to stimulate biphenyl-degrading bacteria was proposed....
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Published in | Bioresource technology Vol. 146; pp. 27 - 34 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Kidlington
Elsevier Ltd
01.10.2013
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | [Display omitted]
•Effect of SRpf on the performance of biphenyl biodegradation was evaluated.•Biphenyl at concentration of 1500mg/L was almost completely degraded in 24h.•Six biphenyl-utilizing strains were isolated using SRpf.•A novel approach to stimulate biphenyl-degrading bacteria was proposed.
SRpf, culture supernatants from Micrococcus luteus containing the resuscitation-promoting factor (Rpf), was used to enhance the biphenyl-degrading capability of potential microorganisms. The obtained results suggest that the enrichment culture produced by the addition of SRpf (enrichment culture treatment group, ECT) enhanced the biphenyl degradation efficiency, cell growth and bacterial diversity significantly. Biphenyl at concentration of 1500mg/L was almost completely degraded in 24h using SRpf at a dosage of 15% (v/v). Six strains unique to the ECT were isolated in pure cultures. This study provides a new insight into bacterial degradation of biphenyl for PCBs-bioremediation, and could be developed as a novel efficient method for obtaining highly desirable pollutant-degrading microorganisms. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0960-8524 1873-2976 |
DOI: | 10.1016/j.biortech.2013.07.028 |