Bitte verwenden Sie diesen Link, wenn Sie dieses Dokument zitieren oder verlinken wollen: https://nbn-resolving.org/urn:nbn:de:gbv:9-opus-83103
Urethanases for the Enzymatic Hydrolysis of Low Molecular Weight Carbamates and the Recycling of Polyurethanes
- Enzymatic degradation and recycling can reduce the environmental impact of plastics. Despite decades of research, no enzymes for the efficient hydrolysis of polyurethanes have been reported. Whereas the hydrolysis of the ester bonds in polyester‐polyurethanes by cutinases is known, the urethane bonds in polyether‐polyurethanes have remained inaccessible to biocatalytic hydrolysis. Here we report the discovery of urethanases from a metagenome library constructed from soil that had been exposed to polyurethane waste for many years. We then demonstrate the use of a urethanase in a chemoenzymatic process for polyurethane foam recycling. The urethanase hydrolyses low molecular weight dicarbamates resulting from chemical glycolysis of polyether‐polyurethane foam, making this strategy broadly applicable to diverse polyether‐polyurethane wastes.
Download full text files
Additional Services
Statistics
| Author: | Yannick Branson, Simone Söltl, Carolin Buchmann, Ren Wei, Lena Schaffert, Christoffel P. S. Badenhorst, Lukas Reisky, Gernot Jäger, Uwe T. BornscheuerORCiD |
|---|---|
| URN: | urn:nbn:de:gbv:9-opus-83103 |
| DOI: | https://doi.org/10.1002/anie.202216220 |
| ISSN: | 1521-3773 |
| Parent Title (English): | Angewandte Chemie International Edition |
| Publisher: | Wiley |
| Place of publication: | Hoboken, NJ |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2023/01/02 |
| Date of first Publication: | 2023/02/20 |
| Release Date: | 2024/03/25 |
| Tag: | Aromatic Diamine; Glycolysis; Polyether Polyol; Polyurethane; Urethanase |
| Volume: | 62 |
| Issue: | 9 |
| Article Number: | e202216220 |
| Page Number: | 5 |
| Faculties: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie |
| Collections: | weitere DFG-förderfähige Artikel |
| Licence (German): |  Creative Commons - Namensnennung-Nicht kommerziell-Keine Bearbeitung 4.0 International |