Research Article

Isolation and Identification of Pyrene Mineralizing Mycobacterium spp. from Contaminated and Uncontaminated Sources

Table 4

Growth of Mycobacterium sp. isolates on various surfactants, phenols, hydrocarbons, and PAHs. Growth was scored visually on the basis of turbidity and ranked accordingly (see Table 3 for turbidity rankings).

SubstrateMycobacterium sp. strain BS5Mycobacterium sp. strain KA5Mycobacterium sp. strain KF4

Surfactants

Triton X-100+++++
Tween 20+++++
Tween 80+++
Tergitol NP-10+++++
Dowfax

Phenols

3-chlorophenol, 4-chlorophenol, Cresol, Pentachlorophenol, 2,4,5-trichlorophenol

Hydrocarbons

Benzene++++++
Toluene++++++
Xylene++++
Diesel, Heptane, Hexane, Hexadecane+++++++++

PAHs

Acenaphthylene, Benzo[a]pyrene, Fluorene, Naphthalene
Phenanthrene+++++++++
Anthracene+++
Pyrene+++++++++
Fluoranthene++++
Benz[a]anthracene++++++
Chrysene+++
Dibenz[a,h]anthracene++++++