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Fungal Assessment of Soil Receiving Palm Oil Mill Effluents in Otuoke, Bayelsa State

Meregini-Ikechukwu, Precious Chinyereugo

Abstract

Discharge of Palm oil mill effluents into the soil possess both positive and negative impact on the environment. The study was done to isolate and identify fungi associated with soil receiving palm oil mill effluents. Soil samples were collected from two palm oil mill factories in Otuoke Bayelsa State, Nigeria. The samples were aspetically collected and transported to the microbiology laboratory for microbiological analysis using standard procedure. Samples were collected for a period of 3 months. Result from this study revealed that the total fungal count of soil samples receiving palm oil mill effluents ranged from 3.65 x 104 in the month of May while the least count for the month of May was recorded in Highness Road Mill A 0.8 x 104 which was the control. The month of June 0.35 x 104 was recorded as the lowest count, while the highest counts were recorded in Beach Road Mill 1.85 x 104. Beach Road Mill A had the least count of 1.8 x 104 as against Highness Road Mill 4.55 x 104 which had the highest number of counts in the month of July.Isolates obtained include Aspergillus niger, Aspergillus flavus, Penicillium sp, Mucor sp and Candida sp. The findings show that Aspergillus niger and Rhizopus spp had the highest percentage of occurrence followed by Penicillum spp while Candida spp had the lowest percentage of occurrence. The results from the study show the potential of palm oil mill effluents exhibiting a environmental impacts on the ecosystem, therefore there is need to for proper effluent management in order to prevent adverse effects on soil health and microbial diversity.

Keywords

Palm oil mill effluentsoilTotal heterotrophic fungiOtuoke

References

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