[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
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