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VOL. 5, ISSUE 3 (2023)
Biodegradation of low-density plastic by bacterial isolates of polluted sites
Authors
Bhavya Tiwari
Abstract
Polythene plays an important role in our day to day life, from carry bags to storage containers and also food packaging. It is the most consistent commodity that has penetrated its roots deep into our lives. Being so widely used, it also causes nuisance in the environment due to its complex structure, higher molecular weight and recalcitrant nature. Conventional methods of disposal cause further harm by releasing toxic chemicals, gases and leachates into the atmosphere, soil and water. Therefore, to minimize the addition of toxic by-products because of incineration and land filling, biological methods are being adopted to contain the explosion of plastic. In accordance to this, the present study was conducted to assess the effect of bacterial strains isolated from polluted sites on low-density plastics. Bacteria were isolated from two sites of Pantnagar that were almost similar to each other in terms of physicochemical properties but differed in the type of waste being dumped. Site A was dumped with biomedical waste from Veterinary College whereas Site B was dumped with laboratory waste like broken glassware, old stationary and other refuses. The isolated bacteria were tested for biochemical activity and then inoculated in flasks filled with minimal media and strips of low-density plastic in them. After incubating for a period of 30 days, it was observed that isolate Ah8 exhibited maximum degradation efficiency of 8.43% (weight loss percentage). The isolate showed high similarity of 99% with bacterial strain Bacillus altitudinis.
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Pages:52-55
How to cite this article:
Bhavya Tiwari "Biodegradation of low-density plastic by bacterial isolates of polluted sites". International Journal of Ecology and Environmental Sciences, Vol 5, Issue 3, 2023, Pages 52-55
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