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Evaluation of biosurfactant production by measuring the emulsification rate (E24) of different substances as hydrophobic organic phase.
| E24 (%) |
||||
|---|---|---|---|---|
| Fraction tested | Toluene | Xylene | Mineral oil | Soybean biodiesel |
| Bacillus sp. C3 | ||||
| Whole culture | NEa | NE | 40 ± 0.7 | NE |
| Supernatant | NE | NE | 39 ± 0.5 | NE |
| Bacillus sp. P5 | ||||
| Whole culture | 59 ± 0.5 | NE | 40 ± 0.2 | 24 ± 0.0 |
| Supernatant | 57 ± 0.0 | NE | 42 ± 0.5 | 24 ± 0.0 |
aNE, no emulsification
