Fungal biodegradation of lignopolystyrene graft copolymers
| Autor: | Aloys Hüttermann, O. Milstein, Meng-Jiu Chen, J. J. Meister, Rolf Gersonde |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
macromolecular substances
Lignin complex mixtures Applied Microbiology and Biotechnology Styrene 03 medical and health sciences chemistry.chemical_compound Organic chemistry Biotransformation 030304 developmental biology Trametes versicolor 0303 health sciences Ecology biology 030306 microbiology Basidiomycota fungi technology industry and agriculture food and beverages Biodegradation biology.organism_classification Biodegradation Environmental Peroxidases chemistry Microscopy Electron Scanning Gloeophyllum trabeum Polystyrenes Phanerochaete Polystyrene Pleurotus ostreatus Research Article Food Science Biotechnology Nuclear chemistry |
| Zdroj: | Applied and Environmental Microbiology. 58:3225-3232 |
| ISSN: | 1098-5336 0099-2240 |
| DOI: | 10.1128/aem.58.10.3225-3232.1992 |
| Popis: | White rot basidiomycetes were able to biodegrade styrene (1-phenylethene) graft copolymers of lignin containing different proportions of lignin and polystyrene [poly(1-phenylethylene)]. The biodegradation tests were run on lignin-styrene copolymerization products which contained 10.3, 32.2, and 50.4% (wt/wt) lignin. The polymer samples were incubated with the white rot fungi Pleurotus ostreatus, Phanerochaete chrysosporium, and Trametes versicolor and the brown rot fungus Gloeophyllum trabeum. White rot fungi degraded the plastic samples at a rate which increased with increasing lignin content in the copolymer sample. Both polystyrene and lignin components of the copolymer were readily degraded. Polystyrene pellets were not degradable in these tests. Degradation was verified for both incubated and control samples by weight loss, quantitative UV spectrophotometric analysis of both lignin and styrene residues, scanning electron microscopy of the plastic surface, and the presence of enzymes active in degradation during incubation. Brown rot fungus did not affect any of the plastics. White rot fungi produced and secreted oxidative enzymes associated with lignin degradation in liquid media during incubation with lignin-polystyrene copolymer. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|