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Title: Hydrocarbon degradation potentials of yeast isolates from a polluted lagoon
Authors: Amund, O. O.
Nwokoye, N.
Keywords: Hydrocarbons
Hydrocarbons degradation
Yeast isolates
Polluted lagoon
Issue Date: 1993
Publisher: Journal of Scientific Research and Development
Citation: Amund, O. O., & Nwokoye, N. (1993). Hydrocarbon degradation potentials of yeast isolates from a polluted lagoon.
Abstract: The population counts of heterotrophic and hydrocarbon-utilising yeasts were monitored at six sampling stations in the Lagos lagoon over a four-week period. Although the population counts were relatively constant in each locality, the highest counts occurred in areas heavily polluted by domestic and industrial effluents. A total of thirty-two hydrocarbon-degrading yeasts were isolated from water at the sampling stations using n-hexadecane as sole carbon source. The isolates were identified as belonging to the genera Candida (25 strains), Endomycopsis (4 strains) and Schizosaccharomyces (3 strains). All the organisms grew on long-chain n-alkane, kerosene, diesel oil and crude oil but failed to grow on short-chain nalkane, aromatic and alicyclic hydrocarbons. Measurement of growth attributes of the isolates using n-hexadecane, diesel oil oil and crude oil as substrates showed that the Candida species were better utilizers of hydrocarbon substrates relative to Endomycopsis and Schizosaccharomyces species.
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