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Detoxification and degradation of petroleum and diesel oil by microbial marine consortia

Grant number: 14/13205-2
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): September 01, 2014
Effective date (End): March 31, 2016
Field of knowledge:Biological Sciences - Microbiology - Applied Microbiology
Acordo de Cooperação: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Lara Durães Sette
Grantee:Lidia de Azevedo Duarte
Host Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil


The high industrial activity and the use of petroleum as the current primary energy resource are some of the factors that contribute to the frequent release of Polycyclic Aromatic Hydrocarbons (PAHs) in the environment. The use of hydrocarbons as carbon and energy source by microorganisms requires the presence of enzymes able to converting the complex molecules of the PAHs in common compounds from its catabolic routes which are usually associated to the ligninolytic enzyme system, dioxygenases, monooxygenases (P450) and epoxide hydrolases. Additionally, despite the paucity of studies, the use of lipolytic micro-organisms in the degradation of petroleum and its derivatives has been described. In this context, the aim of this work is to analyze the detoxification and degradation of crude oil and diesel samples including two marine lipolytic yeasts from Antarctica, a marine lipolytic fungus isolated from the Brazilian coast and a marine lipolytic fungus from Antarctica, in the best microbial consortium selected in the project of Gabriela Licursi Vieira that have been carrying out at UNESP/Rio Claro. The detoxification of these compounds will be evaluated through the analysis of acute toxicity in microtox and the best consortium selected will be subjected to experiments to determine the optimal conditions for detoxification of crude oil and diesel. Subsequently, will be evaluated: (i) the degradation of crude oil and/or diesel oil by classical liquid chromatography analysis and gas chromatography coupled to mass spectrometer, and (ii) enzymes production during the process of degradation/detoxification. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
GIOVANELLA, PATRICIA; DUARTE, LIDIA DE AZEVEDO; KITA, DANIELA MAYUMI; DE OLIVEIRA, VALERIA MAIA; SETTE, LARA DURAES. Effect of biostimulation and bioaugmentation on hydrocarbon degradation and detoxification of diesel-contaminated soil: a microcosm study. JOURNAL OF MICROBIOLOGY, v. 59, n. 7, p. 634-643, . (13/19486-0, 16/17488-4, 14/13205-2)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
DUARTE, Lidia de Azevedo. Detoxification of petroleum and diesel oil by microbial consortium from marine environment. 2016. Master's Dissertation - Universidade Estadual Paulista (Unesp). Instituto de Biociências. Rio Claro Rio Claro.

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