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Crude Oil Biodegradation by Newly Isolated Bacterial Strains and Their Consortium Under Soil Microcosm Experiment.

Authors
  • Bidja Abena, Marie Thérèse1, 2
  • Sodbaatar, Naranjargal1, 2
  • Li, Tongtong1
  • Damdinsuren, Narantuya3
  • Choidash, Battsetseg3
  • Zhong, Weihong4
  • 1 College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, China. , (China)
  • 2 International College, Zhejiang University of Technology, Hangzhou, 310032, China. , (China)
  • 3 Department of Biology, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar, 14201, Mongolia. , (Mongolia)
  • 4 College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, China. [email protected] , (China)
Type
Published Article
Journal
Applied Biochemistry and Biotechnology
Publisher
Springer-Verlag
Publication Date
Dec 01, 2019
Volume
189
Issue
4
Pages
1223–1244
Identifiers
DOI: 10.1007/s12010-019-03058-2
PMID: 31236896
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Bioremediation has been attracting researchers' attention to develop as a technique to remove the pollution of crude oil in the environment. However, more or stronger novel strains capable of crude oil removal are still required. In this study, the potential of five newly isolated bacterial strains for crude oil abatement was evaluated in the liquid medium and contaminated soil individually and as a mixed consortium. Raoultella ornithinolytica strain PS exhibited the highest ability and degraded up to 83.5% of crude oil. Whereas Bacillus subtilis strain BJ11 degraded 81.1%, Acinetobacter lwoffii strain BJ10 degraded 75.8%, Acinetobacter pittii strain BJ6 degraded 74.9%, and Serratia marcescens strain PL degraded only 70.0% of crude oil in the liquid media. The consortium comprising the above five strains degraded more than 94.0% of crude oil after 10 days of incubation in the liquid medium. The consortium degraded more than 65.0% of crude oil after 40 days incubation even in the contaminated soil. The five crude oil degrading strains, especially their consortium, exhibited a high capability to break down a wide range of compounds in crude oil including straight-chain alkanes, branched alkanes, and aromatic hydrocarbons. These strains, especially as consortia, have good potential of application in the remediation of crude oil-contaminated environments.

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