Diesel and Kerosene Degradation by Pseudomonas desmolyticum NCIM 2112 and Nocardia hydrocarbonoxydans NCIM 2386
2008
Pseudomonas desmolyticum NCIM 2112 (Pd 2112) and Nocardia hydrocarbonoxydans NCIM 2386 (Nh 2386) demonstrated an ability to degrade diesel and kerosene. Triton X-100 had enhanced the diesel degradation process by reducing the time required for the maximum utilization of total petroleum hydrocarbon. Fourier transform infrared spectroscopy spectrum of degraded diesel indicates the presence of aliphatic and aromatic aldehydes, C=C aromatic nuclei, and substituted benzenes. Surface tension reduction and stable emulsification was increased using consortium when compared to individual strains. Triton X-100 showed increase in microbial attachment to hydrocarbon among the various chemical surfactants tested. For generating a rapid assay to screen microorganisms capable of degrading kerosene, the acetaldehyde produced in the degradation process could be used as an indicator of degradation. These results indicate diesel and kerosene degradation ability of both of the strains.
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