Effect of Adding Rhamnolipid Biosurfactant and Inoculating Rhamnolipid-producing Strain on Oil Biodegradation
Environmental Science & Technology(2010)
Abstract
The effect of adding rhamnolipid and inoculating biosurfactant-producing strain to the biodegradation system of petroleum hydrocarbons was investigated. The addition of rhamnolipid increased the biodegradation extent of total petroleum hydrocarbon from 35.7% to 57.6% within 20 days. The biodegradation rates of both saturate and aromatic fractions were enhanced.Biosurfactant-producing strain O-2-2 could utilize saturate fractions of crude oil and excrete rhamnolipid biosurfactant,resulting in a higher biodegradation of total petroleum hydrocarbon. Co-inoculating biosurfactant-producing strain O-2-2 could enhance the biodegradation of saturate fractions greatly,but decrease that of aromatic fractions,which indicated that there might be competition between biosurfactant-producing strain and the hydrocarbon-degrading consortium.
MoreTranslated text
Key words
biodegradation,rhamnolipid,bioavailability,petroleum hydrocarbon contaminant,biosurfactant
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined