Crude oil constitutes of variety of polycyclic aromatic hydrocarbons
(PAHs) that consist of fused aromatic rings, which are known pollutants
and potential health hazards. PAHs are also found in processed fossil
fuels, tar and various edible oil. The study highlights the isolation,
identification and the screening of efficient PAHs degradation under
optimal conditions of cultivation. Further the efforts have been made to
study the involvement of genetic and biochemical machinery in
biodegradation of PAHs and to develop a bioprocess technology through
use of mutagenic and immobilization techniques. In such a biodiverse
environment, there is further need to explore possibilities of newer,
more efficient and potential strains with degradative pathways leading
from toxic substrates to eco friendly, safe and nontoxic products.