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Indication of the biosurfactants that showed the best demulsification results identified by the statistical tests
| Biosurfactant concentration | Demulsification of motor oil (%) by the biosurfactants produced | |
|---|---|---|
| Distilled water | Sea water | |
| Cell-free broth | P. aeruginosa (44.0 ± 0.5) | P. aeruginosa (50.0 ± 0.6) |
| ½ CMC | Bacillus sp. (46.6 ± 0.9) | P. cepacia (45.0 ± 0.9) |
| CMC | P. aeruginosa (48.0 ± 0.9) | Bacillus sp. (54.4 ± 0.9) |
| 2 × CMC | P. aeruginosa (62.0 ± 0.9) | Bacillus sp. (66.0 ± 0.9) |
