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Exploring Fungi-mediated Biodegradation Pathway of Polymers in Environmental Systems(Dump Sites)
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This study explored how fungi found at waste dump sites can break down plastic polymers including nylon bags. Species such as Aspergillus niger were identified and showed some capacity for polymer degradation, suggesting potential use in plastic bioremediation.
Context: The growing presence of environmental plastic has garnered escalating attention and worry in recent decades. While ease of production, durability, cost-effectiveness, and resistance to corrosion are valued attributes for consumer goods, they contribute to the persistent environmental presence, leading to a widespread surge in plastic pollution. Aim: To find out various microbial- mediated biodegradation pathway of polymers (black nylon and white nylon). Settings and Design: The research was carried out by obtaining dump soil from a mechanic dump site and a hospital dump site in Ibadan, Oyo state. Materials and Methodology: Dump soil were obtained, diluted(serial) and Cultered and morphological and microscopic observation were carried out while polythene bags which are black nylon and white nylon were also degraded at Day 5, 10 ,15 and 20. Results: Biodegradation of polymers is influenced by both polymer characteristics and the presence of specific microorganisms in the environment. Fungi, with species like A. niger, A. flavus, and C. fungus were identified in a dump site. Weight analysis of polythene bags (black nylon and white nylon) over days revealed slight changes, indicating some degradation. PCR analysis confirmed genetic material from fungal isolates, highlighting the specificity and sensitivity of the chosen primers. Conclusion: The presence of Aspergillus species in the dump site suggests their potential for bioremediation efforts in challenging environments
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