Degradation of Green Polyethylene by Pleurotus ostreatus
We studied the biodegradation of green polyethylene (GP) by Pleurotus ostreatus. The GP was developed from renewable raw materials to help to reduce the emissions of greenhouse gases. However, little information regarding the biodegradation of GP discarded in the environment is available. P. ostreat...
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| Format: | Online |
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Public Library of Science
2015
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4468114/ |
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pubmed-4468114 |
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pubmed-44681142015-06-25 Degradation of Green Polyethylene by Pleurotus ostreatus da Luz, José Maria Rodrigues Paes, Sirlaine Albino Ribeiro, Karla Veloso Gonçalves Mendes, Igor Rodrigues Kasuya, Maria Catarina Megumi Research Article We studied the biodegradation of green polyethylene (GP) by Pleurotus ostreatus. The GP was developed from renewable raw materials to help to reduce the emissions of greenhouse gases. However, little information regarding the biodegradation of GP discarded in the environment is available. P. ostreatus is a lignocellulolytic fungus that has been used in bioremediation processes for agroindustrial residues, pollutants, and recalcitrant compounds. Recently, we showed the potential of this fungus to degrade oxo-biodegradable polyethylene. GP plastic bags were exposed to sunlight for up to 120 days to induce the initial photodegradation of the polymers. After this period, no cracks, pits, or new functional groups in the structure of GP were observed. Fragments of these bags were used as the substrate for the growth of P. ostreatus. After 30 d of incubation, physical and chemical alterations in the structure of GP were observed. We conclude that the exposure of GP to sunlight and its subsequent incubation in the presence of P. ostreatus can decrease the half-life of GP and facilitate the mineralization of these polymers. Public Library of Science 2015-06-15 /pmc/articles/PMC4468114/ /pubmed/26076188 http://dx.doi.org/10.1371/journal.pone.0126047 Text en © 2015 da Luz et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
| repository_type |
Open Access Journal |
| institution_category |
Foreign Institution |
| institution |
US National Center for Biotechnology Information |
| building |
NCBI PubMed |
| collection |
Online Access |
| language |
English |
| format |
Online |
| author |
da Luz, José Maria Rodrigues Paes, Sirlaine Albino Ribeiro, Karla Veloso Gonçalves Mendes, Igor Rodrigues Kasuya, Maria Catarina Megumi |
| spellingShingle |
da Luz, José Maria Rodrigues Paes, Sirlaine Albino Ribeiro, Karla Veloso Gonçalves Mendes, Igor Rodrigues Kasuya, Maria Catarina Megumi Degradation of Green Polyethylene by Pleurotus ostreatus |
| author_facet |
da Luz, José Maria Rodrigues Paes, Sirlaine Albino Ribeiro, Karla Veloso Gonçalves Mendes, Igor Rodrigues Kasuya, Maria Catarina Megumi |
| author_sort |
da Luz, José Maria Rodrigues |
| title |
Degradation of Green Polyethylene by Pleurotus ostreatus
|
| title_short |
Degradation of Green Polyethylene by Pleurotus ostreatus
|
| title_full |
Degradation of Green Polyethylene by Pleurotus ostreatus
|
| title_fullStr |
Degradation of Green Polyethylene by Pleurotus ostreatus
|
| title_full_unstemmed |
Degradation of Green Polyethylene by Pleurotus ostreatus
|
| title_sort |
degradation of green polyethylene by pleurotus ostreatus |
| description |
We studied the biodegradation of green polyethylene (GP) by Pleurotus ostreatus. The GP was developed from renewable raw materials to help to reduce the emissions of greenhouse gases. However, little information regarding the biodegradation of GP discarded in the environment is available. P. ostreatus is a lignocellulolytic fungus that has been used in bioremediation processes for agroindustrial residues, pollutants, and recalcitrant compounds. Recently, we showed the potential of this fungus to degrade oxo-biodegradable polyethylene. GP plastic bags were exposed to sunlight for up to 120 days to induce the initial photodegradation of the polymers. After this period, no cracks, pits, or new functional groups in the structure of GP were observed. Fragments of these bags were used as the substrate for the growth of P. ostreatus. After 30 d of incubation, physical and chemical alterations in the structure of GP were observed. We conclude that the exposure of GP to sunlight and its subsequent incubation in the presence of P. ostreatus can decrease the half-life of GP and facilitate the mineralization of these polymers. |
| publisher |
Public Library of Science |
| publishDate |
2015 |
| url |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4468114/ |
| _version_ |
1613235905578926080 |