Table 2.

Degradation of aliphatic, aromatic and NSO fractions of crude oil by bacterial consortia and in presence of biosurfactant after 30 days

Bacterial strain	Aliphatic fraction degraded (%)	Aromatic fraction degraded (%)	NSO compound degraded (%)
Control	12.2 ± 0.5	08.9 ± 0.5	05.2 ± 0.7
Consortium I	78.6 ± 0.5	42.7 ± 0.7	21.6 ± 0.3
Consortium II	80.4 ± 0.8	42.4 ± 0.4	19.2 ± 0.4
Consortium I + biosurfactant	80.7 ± 0.3	43.8 ± 0.5	22.5 ± 0.7
Consortium II + biosurfactant	81.6 ± 0.7	42.6 ± 0.2	20.7 ± 0.5

Determination on the basis of crude oil 2.0 ml (1.849 g). Results represented mean ± SD of three individual experiments