Nature is responding to plastic pollution with new enzymes

New research has identified new enzymes with the potential to degrade plastic, and their numbers correlate with pollutant count.

@AdamHuntTT
Published Wed, Dec 15 2021 5:00 AM CST   |   Updated Sat, Jan 8 2022 3:32 AM CST

Researchers from the Chalmers University of Technology in Sweden have identified a host of new plastic-degrading enzymes associated with an uptick in plastic pollution.

Nature is responding to plastic pollution with new enzymes 01 | TweakTown.com

The researchers analyzed DNA samples from hundreds of locations globally and found a correlation between local levels of plastic pollution and the number of microbial enzymes capable of breaking down said plastic. Computer analysis identified plastic-degrading potential in the DNA, and the results were cross-referenced with official numbers for plastic waste pollution at the locations where the DNA was sampled.

"Using our models, we found multiple lines of evidence supporting the fact that the global microbiome's plastic-degrading potential correlates strongly with measurements of environmental plastic pollution-a significant demonstration of how the environment is responding to the pressures we are placing on it," said Aleksej Zelezniak, associate professor in systems biology at Chalmers University of Technology.

Over 30,000 homologous enzymes were identified, with the potential to degrade ten different types of common plastics. With eight million tons of plastic entering the ocean annually and some varieties taking hundreds of years to degrade naturally, these enzymes could provide a promising way to deal with the pollution.

The researcher's published an article in mBio, entitled 'Plastic-Degrading Potential across the Global Microbiome Correlates with Recent Pollution Trends,' which you can read here.

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NEWS SOURCES:phys.org, doi.org

Adam grew up watching his dad play Turok 2 and Age of Empires on a PC in his computer room, and learned a love for video games through him. Adam was always working with computers, which helped build his natural affinity for working with them, leading to him building his own at 14, after taking apart and tinkering with other old computers and tech lying around. Adam has always been very interested in STEM subjects, and is always trying to learn more about the world and the way it works.

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