![]() ![]() Agar clearing tests indicated that 19 strains had the ability to degrade the dispersed PUR. We tested their ability to degrade, at 15☌, conventional polyethylene (PE) and the biodegradable plastics polyester-polyurethane (PUR Impranil ®) ecovio ® and BI-OPL, two commercial plastic films made of polybutylene adipate-co-terephthalate (PBAT) and polylactic acid (PLA) pure PBAT and pure PLA. Here, we isolated 34 cold-adapted microbial strains from the plastisphere using plastics buried in alpine and Arctic soils during laboratory incubations as well as plastics collected directly from Arctic terrestrial environments. ![]() ![]() Temperature is a crucial parameter affecting biodegradation rates, but so far microbial plastic degradation has mostly been studied at temperatures above 20☌. Microorganisms have a great potential to enable a more sustainable plastic economy by biodegradation and enzymatic recycling of polymers. Increasing plastic production and the release of some plastic in to the environment highlight the need for circular plastic economy. 2Institute of Biogeochemistry and Pollutant Dynamics, Swiss Federal Institute of Technology ETH, Zurich, Switzerland.1Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland.Joel Rüthi 1,2, Mattia Cerri 2, Ivano Brunner 1, Beat Stierli 1, Michael Sander 2 and Beat Frey 1 * ![]()
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