Research Article
[Retracted] Bacterial Biodegradation of Crude Oil Using Local Isolates
Table 3
Values of Pr/Ph, n-C17/Pr, n-C18/Ph, and CPI for residual crude oil after biodegradation.
| Incubation period | Bacterial strains | Control | P. aeruginosa | B. subtilis | A. lwoffi | Mixture |
| 7 days | | | | | | Pr/Ph | 0.93 | 0.91 | 0.91 | 0.90 | 0.90 | -C17/Pr | 0.95 | 0.41 | 0.75 | 0.61 | 0.32 | -C18/Ph | 0.82 | 0.44 | 0.73 | 0.52 | 0.33 | CPI | 1.06 | 1.18 | 0.98 | 0.97 | 1.25 | 14 days | | | | | | Pr/Ph | 0.93 | 0.93 | 0.94 | 0.94 | 0.90 | -C17/Pr | 0.95 | 0.33 | 0.61 | 0.52 | 0.28 | -C18/Ph | 0.82 | 0.35 | 0.54 | 0.49 | 0.28 | CPI | 1.06 | 0.88 | 1.00 | 1.05 | 0.94 | 21 days | | | | | | Pr/Ph | 0.93 | 0.94 | 0.91 | 0.91 | 0.92 | -C17/Pr | 0.95 | 0.31 | 0.44 | 0.37 | 0.25 | -C18/Ph | 0.82 | 0.33 | 0.42 | 0.36 | 0.21 | CPI | 1.06 | 1.35 | 0.98 | 1.03 | 0.83 | 28 days | | | | | | Pr/Ph | 0.93 | 0.91 | 0.91 | 0.93 | 0.94 | -C17/Pr | 0.95 | 0.28 | 0.36 | 0.31 | 0.17 | -C18/Ph | 0.82 | 0.30 | 0.38 | 0.32 | 0.16 | CPI | 1.06 | 1.05 | 1.00 | 1.01 | 1.13 |
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