Abstract
Biosurfactant production was studied by Bacillus licheniformis K51, B. subtilis 20B, B. subtilis R1 and Bacillus strain HS3 using molasses or cheese whey as a sole source of nutrition at 45 °C. The isolates were able to grow and produce biosurfactant under shaking as well as static conditions. Maximum biosurfactant production was achieved with molasses at 5.0-7.0% (w/v). The biosurfactant retained its surface-active properties after incubation at 80 °C at a wide range of pH values and salt concentrations for nine days. Oil displacement experiments in sand pack columns with crude oil showed 25-33% recovery of residual oil.
Original language | English |
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Pages (from-to) | 195-199 |
Number of pages | 5 |
Journal | Bioresource Technology |
Volume | 99 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2008 |
Externally published | Yes |
Keywords
- Bacillus licheniformis
- Bacillus subtilis
- Biosurfactant
- Cheese whey
- Molasses
ASJC Scopus subject areas
- Bioengineering
- Environmental Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal