Petroleum hydrocarbon degradation by isolated mangrove bacteria

Authors

  • Mayara A. Lustosa - Curso de Engenharia de Petróleo, Universidade Tiradentes, Aracaju, Brasil. - Instituto de Tecnologia e Pesquisa, Aracaju, Brasil.
  • Jorge A. López - Programa de Pós-Graduação em Biotecnologia Industrial, Universidade Tiradentes, Aracaju, Brasil. - Instituto de Tecnologia e Pesquisa, Aracaju, Brasil.
  • Karla C. Santos Freire - Instituto de Tecnologia e Pesquisa, Aracaju, Brasil.
  • Francine F. Padilha - Programa de Pós-Graduação em Biotecnologia Industrial, Universidade Tiradentes, Aracaju, Brasil. - Instituto de Tecnologia e Pesquisa, Aracaju, Brasil. https://orcid.org/0000-0002-5892-4252
  • María Lucila Hernández-Macedo - Programa de Pós-Graduação em Biotecnologia Industrial, Universidade Tiradentes, Aracaju, Brasil. - Instituto de Tecnologia e Pesquisa, Aracaju, Brasil.
  • Rebeca Y. Cabrera-Padilla Instituto de Química, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil. https://orcid.org/0000-0002-2013-9902

DOI:

https://doi.org/10.15381/rpb.v25i4.15537

Keywords:

microorganisms, metabolism, Hydrocarbons, pollution, bioremediation.

Abstract

The petroleum hydrocarbon contamination represents a worldwide problem, since its accumulation promotes a serious environmental impact. Thereby, the use of microorganisms, such as those from mangrove micro biota, as degrading agents of various carbon sources is poorly exploited in environmental remediation processes. Thus, this in vitro study evaluated the degrading potential of isolated bacteria from mangrove sediments in the degradation of petroleum hydrocarbons. Analysis of the genetic diversity using the 16S rRNA marker revealed closely related (99%) sequences with Proteobacterium, Pseudomonas and Exiguobacterium. Results showed the bacterial growth in the mineral saline medium (MSM) containing 1% petroleum or diesel, as carbon sources. This growth was determinated by optical density at 595 nm for 15 days, with sample withdrawal every 48 h. Bacterial growth indicated the hydrocarbon metabolization. However, bacteria were more efficient at degrading petroleum. Overall, experimental data displayed the potential application of these bacteria in bioremediation processes, due to their metabolic and adaptive capacities to grow in a rich hydrocarbon medium.

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Published

12/07/2018

Issue

Vol. 25 No. 4 (2018)

Section

Notes

License

Copyright (c) 2018 Mayara A. Lustosa, Jorge A. López, Karla C. Santos Freire, Francine F. Padilha, María Lucila Hernández-Macedo, Rebeca Y. Cabrera-Padilla

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How to Cite

Lustosa, Mayara A., Jorge A. López, Karla C. Santos Freire, Francine F. Padilha, María Lucila Hernández-Macedo, and Rebeca Y. Cabrera-Padilla. 2018. “Petroleum Hydrocarbon Degradation by Isolated Mangrove Bacteria”. Revista Peruana De Biología 25 (4): 441-44. https://doi.org/10.15381/rpb.v25i4.15537.