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Cited by 38Microbial bioremediation and biosurfactantsSurfactants and Colloidal SystemsEnvironmental Chemistry and Analysis

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Biosurfactant Production by Pseudomonas aeruginosa SNP0614 and its Effect on Biodegradation of Petroleum

Liu, W. J., Duan, X. D., Wu, L. P., Masakorala, K.·2018·Applied Biochemistry and Microbiology
DOI 10.1134/s0003683818020060
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Abstract

An efficient biosurfactant-producing strain was isolated and cultured from Dagang oil field (China) using crude oil as sole source of carbon. Based on partial sequenced 16S rDNA analysis, the isolated strain was identified as Pseudomonas aeruginosa SNP0614. The bacterium P. aeruginosa SNP0614 produced a type of biosurfactant with excessive foam-forming properties. After microbial cultivation at 37°C and 150 rpm for 12 h, the produced biosurfactant was found to reduce the surface tension to 25.4 mN/m with critical micelle concentration (CMC) of 45.0 mg/L. After 20 days of incubation, the biosurfactant exhibited 90% emulsification activity (E 24 ) on crude oil. FTIR spectroscopy of extracted biosurfactant indicated the biosurfactant as lipopeptide. The significant synergistic effect between P. aeruginosa SNP0614 and the mixed oildegrading bacteria resulted in increasing n -alkanes degradation rate by 30%. The strain P. aeruginosa SNP0614 represented as a promising biosurfactant producer and could be applied in a variety of biotechnological and industrial processes, particularly in microbial enhanced oil recovery and the bioremediation of oil pollution.

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Metadata

Authors
Liu, W. J., Duan, X. D., Wu, L. P., & Masakorala, K.
Affiliations
  • Shanxi University (CN)
  • University of Science and Technology Beijing (CN)
  • University of Ruhuna (LK)
Corresponding author
Liu, W. J.
ORCID
Masakorala, K.
Venue
Applied Biochemistry and Microbiology
Publisher
Pleiades Publishing Ltd
Published
2018-03
Volume
54
Issue
2
Pages
155-162
ISSN
  • 0003-6838 (ISSN-L)
  • 1608-3024
DOI
10.1134/s0003683818020060
OpenAlex
W2792354103
Cited by
38
References
0
Citations by year
2026: 2 · 2025: 6 · 2024: 2 · 2023: 7 · 2022: 7 · 2021: 8 · 2020: 4 · 2019: 1 · 2018: 1
FWCI
1.27
Type
journal article
Language
en
Open access
closed
Licence
Locations
Applied Biochemistry and Microbiology (publishedVersion)
Funders
  • National Natural Science Foundation of China
  • Ministry of Science and Technology of the People's Republic of China
Topics
  • Physical Sciences › Environmental Science › Pollution › Microbial bioremediation and biosurfactants
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Surfactants and Colloidal Systems
  • Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
Keywords
biosurfactant production, Pseudomonas aeruginosa, crude oil biodegradation, lipopeptide biosurfactant, surface tension reduction, critical micelle concentration, emulsification activity, n-alkane degradation, microbial enhanced oil recovery, Dagang Oilfield

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