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. 2014 Jan 20;2014:863272. doi: 10.1155/2014/863272

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
n-C17/Pr 0.95 0.41 0.75 0.61 0.32
n-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
n-C17/Pr 0.95 0.33 0.61 0.52 0.28
n-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
n-C17/Pr 0.95 0.31 0.44 0.37 0.25
n-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
n-C17/Pr 0.95 0.28 0.36 0.31 0.17
n-C18/Ph 0.82 0.30 0.38 0.32 0.16
 CPI 1.06 1.05 1.00 1.01 1.13