Abiotic and biotic degradation of oxo-biodegradable plastic bags by Pleurotus ostreatus.
| Autor: | da Luz JM; Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil., Paes SA; Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil., Bazzolli DM; Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil., Tótola MR; Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil., Demuner AJ; Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil., Kasuya MC; Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil. |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | PloS one [PLoS One] 2014 Nov 24; Vol. 9 (11), pp. e107438. Date of Electronic Publication: 2014 Nov 24 (Print Publication: 2014). |
| DOI: | 10.1371/journal.pone.0107438 |
| Abstrakt: | In this study, we evaluated the growth of Pleurotus ostreatus PLO6 using oxo-biodegradable plastics as a carbon and energy source. Oxo-biodegradable polymers contain pro-oxidants that accelerate their physical and biological degradation. These polymers were developed to decrease the accumulation of plastic waste in landfills. To study the degradation of the plastic polymers, oxo-biodegradable plastic bags were exposed to sunlight for up to 120 days, and fragments of these bags were used as substrates for P. ostreatus. We observed that physical treatment alone was not sufficient to initiate degradation. Instead, mechanical modifications and reduced titanium oxide (TiO2) concentrations caused by sunlight exposure triggered microbial degradation. The low specificity of lignocellulolytic enzymes and presence of endomycotic nitrogen-fixing microorganisms were also contributing factors in this process. |
| Databáze: | MEDLINE |
| Externí odkaz: |
|