Study on immobilization of marine oil-degrading bacteria by carrier of algae materials

World Journal of Microbiology & Biotechnology
Yiran ZhangLi Zheng

Abstract

This study investigated the immobilizations with of bacteria two kinds of algal materials, Enteromorpha residue and kelp residue. The lipophilicity of them were compared by diesel absorption rates. The immobilization efficiency of Bacillus sp. E3 was measured to evaluate whether these carriers would satisfy the requirement for biodegradation of oil spills. The bacteria were immobilized through adsorption with the sterilized and non-sterilized carriers to compare the differences between the two treatments. Oil degradation rates were determined using gravimetric and GC-MS methods. Results showed the absorption rates of Enteromorpha residue and kelp residue for diesel were 411 and 273% respectively and remained approximately 105 and 120% after 2 h of erosion in simulated seawater system. After immobilized of Bacillus sp. E3, the oil degradation rates of them were higher than 65% after 21 days biodegradations. GC-MS analysis showed that two immobilizations degraded higher than 70% of the total alkane and the total PAHs, whereas the free bacteria degraded 63% of the total alkane and 66% the total PAHs. And the bacteria immobilized with the carriers degraded more HMW-alkanes and HMW-PAHs than the free bacteria. The bacteria immobiliz...Continue Reading

References

Jan 1, 1995·International Journal of Systematic Bacteriology·S E DyksterhouseJ T Staley
Oct 24, 2007·Journal of Applied Microbiology·S S RadwanM Eliyas
Apr 5, 2011·Biodegradation·Preethy Chandran, Nilanjana Das

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Citations

Jan 23, 2021·International Journal of Environmental Research and Public Health·Yiyun CaiXiaoya Zhou
Aug 14, 2021·Environmental Science and Pollution Research International·Mohammad Daher Hazaimeh, Enas S Ahmed

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Methods Mentioned

BETA
scanning electron microscopy
PCR
electrophoresis

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