Biodegradation of Petroleum Products Using Phylloplane Fungi Isolated From Selected Plants.
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Adeogun, O. O.
Adekunle, A. A.
University of Lagos.
Petroleum Products degrading fungi were isolated from leaves surfaces of selected plants: Alcornea cordifolia, Lantana camara, Mangnifera indica, Manihot esculenta, and Panicum maximum. An assessment of the relative ability of each fungus to degrade crude oil, diesel, kerosene, spent engine oil and unspent engine oil on minimal salt solution was done using the change in optical density read on a spectrophometre and gas chromatographic analyses. Eight fungi were isolated from monthly sampling of the selected plant leaves for a period of six months: Aspergillus flavus, Aspergillus fumigatus, Aspergillus niger, Aspergillus wentii, Collectotricum sp., Mortierella sp., Penicillium sp. and Trichoderma sp. and the degrading ability of the fungi were observed after 40 days of incubation. All the fungi used in this study were found capable of biodegrading petroleum hydrocarbons, though at different rates. Collectotricum sp. and Penicillium sp. had the highest degrading ability in kerosene while A. wentii had the least ability to degrade kerosene. In degradation of diesel, A. flavus had the highest degrading ability while A. wentii had the least ability to degrade. In unspent engine oil, Mortierella sp. had the highest degrading ability while A. wentii had the least ability to degrade. In spent engine oil, A. fumigatus and A. niger had the highest degrading abilities while Penicillium sp. had the least ability to degrade. In crude oil, A. flavus had the highest degrading ability while Penicillium sp., Collectotricum sp. and Mortierella sp. had the least abilities to degrade. The gas chromatographic (GC) analyses showed that Collectotricum sp. degraded kerosene and Mortierella sp. degraded unspent engine oil after 40 days of incubation.
Phylloplane fungi , petroleum products , oil pollution , biodegradation
Adeogun, O. O. and Adekunle, A. A. (2015). Biodegradation of Petroleum Products Using Phylloplane Fungi Isolated From Selected Plants. Journal of Scientific Research and Development 15: 45 - 53