Biodegradation of phenol by Klebsiellaoxytocaisolated from oil contaminated environments

Noor Mohammad Ali, Ecology Department College of Sciences, University of Al-Qadisiyah, IraqFollow
Aamal Ghazi Mahdi Al-Saadi, Ecology Department College of Sciences, University of Al-Qadisiyah, IraqFollow

Document Type

Article

Abstract

The degradation of phenol by microorganisms in the soil is an important method through which these materials are removed from the environment, thus reducing environmental pollution. Biodegradation by bacterial species provides unique opportunities to destroy or convert phenolic compounds into other less toxic compounds. In this study, two Klebsiella oxytoca isolates were selected from petroleum contaminated soils using mineral salts medium supporting with phenol as the only carbon source.The isolates were identified by microscopic, morphological, and biochemical approaches, and their capabilities of biodegrading phenol were analyzed by 4-aminoantipyrine assay. The results showed that the selected Klebsiella oxytoca isolates were able to remove 100% of phenol even at a the highest used concentration(500 mg / L).The results of the current study indicate the possibility of using Klebsiella oxytoca in bioremediation of phenol contaminated environments.

Keywords

Isolation, identification, Klebsiella oxytoca, phenol, Biodegradation

Recommended Citation

Ali, Noor Mohammad and Al-Saadi, Aamal Ghazi Mahdi (2020) "Biodegradation of phenol by Klebsiellaoxytocaisolated from oil contaminated environments," Al-Qadisiyah Journal of Pure Science: Vol. 25 : No. 4 , Article 14.
Available at: https://doi.org/10.29350/qjps.2020.25.4.1202