SCREENING OF LOW DENSITY POLYETHYLENE DEGRADING BACTERIA FROM POLLUTED SOIL WITH PLASTICS...........

The accumulation of polyethylene waste in the environment is causing an ever-increasing ecological threat. Biodegradable plastics are regarded environmentally favourable since they have an expanding range of potential applications, which is fueled by the increased usage of plastics in packaging. From 10 plastic trash accumulated places in and around Sivakasi city, Tamil Nadu, India, 350 microbiological isolates (bacteria: 324 isolates, fungal: 31 isolates) were isolated. Bacterial isolates were subjected to primary and secondary screening based on their ability to grow in low density polyethylene solid and liquid media. Eight isolates degraded LDPE with a high efficiency. Pseudomonas sp., Bacillus sp., Staphylococcus sp., Serratia sp., Aspergillus japonicus, Aspergillus fumigatus, Penicilliun funiclosum, and Fusarium moniliforms were identified as the seven isolates. Aspergillus japonicus (60.15 percent) and Bacillus sp (58.96 percent) were the most active of the eight isolates. As a result, the current study concludes that bacteria have sufficient capability to destroy plastic over time.

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