| Conversion and degradation of crude oil by Bacillus SP3 |
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| 作者姓名： | 郝瑞霞 鲁安怀 |
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| 作者单位： | Department of Geology Peking University，Department of Geology Peking University，Beijing 100871 China，Beijing 100871 China |
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| 基金项目： | Acknowledgements This study was supported by CNPC Innovation Funds. Thank are due to the Shengli Petroleum Administrative Bureau for providing the samples and information about the oil reservoirs. The authors also are grateful to Xu Mengshan for analysis of metabolites, and to Dong Xiuhu for identification of bacteria. |
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| 摘 要： | The objective of this study is to demonstrate the basic characteristics of Bacillus SP3 and evaluate its effect on different crude oils. Strain SP3 is a motile, gram-positive, spore-producing rod that was isolated from a reservoir of the Shengli oil field in East China. The cells of strain SP3 grew at high temperatures up to 58℃ at the pH range of 5.5–8.5. Strain SP3 grew facultatively and could use different organic substrates, and produce some metabolites such as 4-hydroxy-4-methyl-2-pentanone, methyl-2-nitrogen benzene and 1, 2-benzenedicarboxylic acid bis ester. Laboratory studies have demonstrated that the strain converted and degraded different components and changed the physical and chemical properties of crude oils. Strain SP3 degraded crude oil and the growth of bacteria on crude oil resulted in loss of aromatic hydrocarbons, resins and asphaltenes. The bioconversion of crude oils would lead to an enrichment in lighter hydrocarbons and an overall redistribution of saturate hydrocarbons. The interactions of microorganisms with crude oils are variable, depending on the microbial species and the chemical compositions of crude oils.
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| 关 键 词： | 芽孢杆菌SP3 原油 生物转化 生物降解 |
| 收稿时间： | 2006-01-06 |
| 修稿时间： | 2006-03-27 |
Conversion and degradation of crude oil by <Emphasis Type="Italic">Bacillus</Emphasis> SP3 |
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| Hao?Ruixia,Lu?Anhuai.Conversion and degradation of crude oil by Bacillus SP3[J].Chinese Journal of Geochemistry,2007,26(2):201-206. |
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| Authors: | Hao Ruixia Lu Anhuai |
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| Institution: | (1) Department of Geology, Peking-University, Beijing, 100871, China |
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| Abstract: | The objective of this study is to demonstrate the basic characteristics of Bacillus SP3 and evaluate its effect on different crude oils. Strain SP3 is a motile, gram-positive, spore-producing rod that was
isolated from a reservoir of the Shengli oil field in East China. The cells of strain SP3 grew at high temperatures up to
58°C at the pH range of 5.5–8.5. Strain SP3 grew facultatively and could use different organic substrates, and produce some
metabolites such as 4-hydroxy-4-methyl-2-pentanone, methyl-2-nitrogen benzene and 1, 2-benzenedicarboxylic acid bis ester.
Laboratory studies have demonstrated that the strain converted and degraded different components and changed the physical
and chemical properties of crude oils. Strain SP3 degraded crude oil and the growth of bacteria on crude oil resulted in loss
of aromatic hydrocarbons, resins and asphaltenes. The bioconversion of crude oils would lead to an enrichment in lighter hydrocarbons
and an overall redistribution of saturate hydrocarbons. The interactions of microorganisms with crude oils are variable, depending
on the microbial species and the chemical compositions of crude oils. |
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| Keywords: | Bacillus SP3 metabolite bioconversion biodegradation crude oil |
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