期刊
MARINE BIOTECHNOLOGY
卷 11, 期 5, 页码 551-556出版社
SPRINGER
DOI: 10.1007/s10126-008-9162-1
关键词
Biosurfactant; Emulsification; Hydrocarbon; Crude oil; Waste motor lubricant oil; Peanut oil cake
资金
- DOD
- CSIR, Government of India
Preliminary characterization of a biosurfactant-producing Azotobacter chroococcum isolated from marine environment showed maximum biomass and biosurfactant production at 120 and 132 h, respectively, at pH 8.0, 38A degrees C, and 30aEuro degrees salinity utilizing a 2% carbon substrate. It grew and produced biosurfactant on crude oil, waste motor lubricant oil, and peanut oil cake. Peanut oil cake gave the highest biosurfactant production (4.6 mg/mL) under fermentation conditions. The biosurfactant product emulsified waste motor lubricant oil, crude oil, diesel, kerosene, naphthalene, anthracene, and xylene. Preliminary characterization of the biosurfactant using biochemical, Fourier transform infrared spectroscopy, and mass spectral analysis indicated that the biosurfactant was a lipopeptide with percentage lipid and protein proportion of 31.3:68.7.
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