Studies on the Potential of bacillus subtilis in the Biodegradation of Engine oil
Harikrishna Yadav Nanganuru1*, Narasimhulu Korrapati2 and Bhanu Prakash M3
Journal Title:Journal of Chemical, Biological and physical sciences
Oil and petroleum products are very toxic to the living organisms. Their detoxification efficiency
indicates good potential for application in bioremediation of oil. Oil in soil is influenced to a great
extent by microbial activity. Microorganisms have ability to degrade oil from a medium. To gain a
better knowledge about oil biodegradation, it is essential to associate hydrocarbon degradation with
specific organisms and metabolic processes. The removal of oil from aqueous solutions by using the
bacterial culture was investigated. The growth of the B. subtilis culture was noticed by oil
supplemented growth medium. In this study, B. subtilis was tested for oil degradation ability. The
degradation of the oil was monitored over a 10 days period. The percentage of biodegradation of oil
by B. subtilis was studied. These bacterial strains could utilize oil hydrocarbons as sole source of carbon
and energy. After testing, it was found that B. subtilis had higher potential to degrade oil up to 71%. B.
subtilis strain showed a significant reduction of oil levels at the end of experiment. The results revealed
that the living biomass of the cultures were more efficient in degrade oil.