Co-biomass degradation of fluoranthene by marine-derived fungi; Aspergillus aculeatus and Mucor irregularis: Comprehensive process optimization, enzyme induction and metabolic analyses

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Date
2022
Authors
Bankole, P.O.
Omoni, V.T.
Mulla, S.I.
Adebajo, S.O.
Adekunle, A.A.
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Publisher
Elsevier B.V
Abstract
The application and relevance of marine-derived fungi in the mycoremediation of environment polluted with polycyclic aromatic hydrocarbons (PAHs) is promising whilst limiting envi- ronmental hazards. The present study investigated the fluoranthene degradation efficiency of marine-derived fungal co-culture, Aspergillus aculeatus (AA) and Mucor irregularis (MI) in batch processes (Plackett-Burman experiments) enhanced with the addition of surfactants and solid- state substrates. Further optimization studies done through fractional factorial design revealed that the co-culture exhibited 98.4% fluoranthene degradation capacity after 7 days of incubation. The role played by enzymes was revealed with 93, 85 and 71% induction of laccase, lignin peroxidase and manganese peroxidase respectively during fluoranthene degradation. The Gas Chromatography-Mass Spectrometry analysis revealed the formation of five metabolites; 1,2- dihy- droxyfluoranthene, 9H-fluorene-1,9-dicarboxylic acid, benzene-1,2,4-tricarboxylic acid, benzene- 1,3-dicarboxylic acid and benzoic acid after fluoranthene degradation by AA + MI co-culture which was used in predicting a metabolic pathway. The findings of this study elucidated the promising potentials of marine-derived fungal co-biomass in the eco-friendly remediation of polycyclic aromatic hydrocarbons thus promoting green technology
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Citation
Bankole, P.O., Omoni, V.T., Mulla, S.I., Adebajo, S.O., Adekunle, A.A. (2022). Co-biomass degradation of fluoranthene by marine-derived fungi; Aspergillus aculeatus and Mucor irregularis: Comprehensive process optimization, enzyme induction and metabolic analyses, Arabian Journal of Chemistry, 15, 11p.