Biodegradation Potential of Soil Fungus on Low Density Polyethylene

Aspergillus candidus was isolated from a local dumpsite of Shivamogga district for use in the biodegradation of polyethylene. Degradation was carried out using surface sterilized polyethylene. Degradation was confirmed by observing weight loss and changes in physical structure by Scanning Electron Microscopy and Fourier Transform Infrared Spectroscopy. Aspergillus candidus was able to degrade surface sterilized polyethylene (1.7%). Enzymes responsible for polyethylene degradation were screened from Aspergillus candidus. Enzymes were identified as laccase and manganese peroxidase. By observing these results we can conclude that, this organism may act as solution for the problem caused by polyethylene in nature.