Petroleum Degradation by Filamentous Fungi
Author:
Judith Liliana Solorzano Lemos, Andrea Camaradella de Lima Rizzo, Valeria Millioli, and Ronaldo Santos
Date: 15 December 2003
Abstract:
It is known that bacteria and fungi are the principle petroleum degrading microorganisms. Therefore, the study of the petroleum hydrocarbon degradation was accomplished by filamentous fungi to evaluate the potential of strains, previously isolated from Guararema (SP – Brazil) soil, accidentally contaminated with crude oil. The results of such an evaluation allowed the selection of those microorganisms with ability to degrade petroleum, added as the only carbon and energy source to a mineral medium. The selected strains were submitted to identification, being the following genera detected: Aspergillus Penicillium, Paecilomyces and Fusarium. After that, degradation tests were accomplished at 30 ºC, in the contaminated soil, to select the best microorganism, or a pool of them, working under the following previously established process conditions: 50% of water holding capacity, scheduled aeration, and without nutrients supply.
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