3 weeks ago

Fungus Found in Pakistan Landfill Breaks Down Tough Plastic

Fungus Found in Pakistan Landfill Breaks Down Tough Plastic
Scientists Found A Fungus In A Pakistan Landfill That Can Break Down One Of The World's Toughest Plastics · news18.com

Scientists found a tiny living thing called a fungus in a garbage dump in Islamabad, Pakistan.

This fungus, named Aspergillus tubingensis, can break down a very tough kind of plastic called polyurethane.

Polyurethane is used in lots of things like fake leather, cushions, coatings and insulation.

This plastic is very hard to break down and usually stays around for a long time.

In laboratory tests, the fungus grew on the plastic and made it crack, erode, and form holes.

In one liquid experiment, the plastic film was completely broken into smaller pieces after two months.

The fungus uses special helpers called enzymes, like esterase and lipase, to do this.

This does not mean plastic trash will vanish quickly in the real world because the tests were done in a lab.

Still, scientists hope that the fungus or its enzymes could one day help clean up tough plastic waste.

Key facts

Organism
Aspergillus tubingensis
Location found
Municipal waste disposal site, Islamabad, Pakistan
Plastic degraded
Polyester polyurethane (PU)
Study
"Biodegradation of polyester polyurethane by Aspergillus tubingensis", published 2017 in Environmental Pollution
Key enzymes
Esterase and lipase
Lab result
Polyurethane film totally degraded after two months in liquid culture
Significance
First reported case of A. tubingensis degrading polyurethane
Methods used
Laboratory cultures, soil burial experiments, scanning electron microscopy, ATR-FTIR spectroscopy

Sources

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