Table 5.

Growth and biodegradation efficiency of selected isolates using different organic compounds as a sole carbon source.

Tested hydrocarbons (500 mg/l)	sp29		sp48		sp50
	OD at 600 nm	Removal%	OD at 600 nm	Removal%	OD at 600 nm	Removal%
Phenol	0.163	36.47	0.609	79.77	0.141	31.76
Naphthalene	0.192	30.69	0.509	73.46	0.16	37.4
Naphthalene.2.sulfonate N2S	0.19	28.7	0.08	7.3	0.242	23.53
Phenantherene	0.00	0.8	0.037	6.7	0.024	5.2
Hexane	0.181	42.2	0.144	41.6	0.188	52.5
Heptane	0.246	53.1	0.158	43.7	0.276	54.7
Pentadecane	0.215	48.38	0.344	62.32	0.327	58.1