Degradation of Structurally Modified Polylactide under the Controlled Composting of Food Waste
The degradation of polylactide (PLA) films of different structures under conditions of controlled composting has been studied. We have demonstrated that PLA underwent degradation within one month in a substrate that simulated standard industrial composting. Regardless of the initial structure of the...
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MDPI AG
2023-10-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/19/4017 |
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| author | Elena Trofimchuk Valeria Ostrikova Olga Ivanova Marina Moskvina Anna Plutalova Tatyana Grokhovskaya Anna Shchelushkina Alexander Efimov Elena Chernikova Shenghua Zhang Vladimir Mironov |
| author_facet | Elena Trofimchuk Valeria Ostrikova Olga Ivanova Marina Moskvina Anna Plutalova Tatyana Grokhovskaya Anna Shchelushkina Alexander Efimov Elena Chernikova Shenghua Zhang Vladimir Mironov |
| author_sort | Elena Trofimchuk |
| collection | DOAJ |
| description | The degradation of polylactide (PLA) films of different structures under conditions of controlled composting has been studied. We have demonstrated that PLA underwent degradation within one month in a substrate that simulated standard industrial composting. Regardless of the initial structure of the samples, the number-average molecular weight (M<sub>n</sub>) decreased to 4 kDa while the degree of crystallinity increased to about 70% after 21 days of composting. Addition of an inoculant to the standard substrate resulted in the accelerated degradation of the PLA samples for one week due to an abiotic hydrolysis. These findings have confirmed that industrial composting could solve the problem of plastic disposal at least for PLA. |
| first_indexed | 2024-03-10T21:36:25Z |
| format | Article |
| id | doaj.art-0de4dcefc5f447419d815cd5a9627534 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T21:36:25Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-0de4dcefc5f447419d815cd5a96275342023-11-19T14:57:43ZengMDPI AGPolymers2073-43602023-10-011519401710.3390/polym15194017Degradation of Structurally Modified Polylactide under the Controlled Composting of Food WasteElena Trofimchuk0Valeria Ostrikova1Olga Ivanova2Marina Moskvina3Anna Plutalova4Tatyana Grokhovskaya5Anna Shchelushkina6Alexander Efimov7Elena Chernikova8Shenghua Zhang9Vladimir Mironov10Department of Chemistry, Moscow State University, Moscow 119991, RussiaWinogradsky Institute of Microbiology, Federal Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, RussiaDepartment of Chemistry, Moscow State University, Moscow 119991, RussiaDepartment of Chemistry, Moscow State University, Moscow 119991, RussiaDepartment of Chemistry, Moscow State University, Moscow 119991, RussiaDepartment of Chemistry, Moscow State University, Moscow 119991, RussiaWinogradsky Institute of Microbiology, Federal Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, RussiaDepartment of Chemistry, Moscow State University, Moscow 119991, RussiaDepartment of Chemistry, Moscow State University, Moscow 119991, RussiaCollege of Harbour and Coastal Engineering, Jimei University, Xiamen 361021, ChinaWinogradsky Institute of Microbiology, Federal Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, RussiaThe degradation of polylactide (PLA) films of different structures under conditions of controlled composting has been studied. We have demonstrated that PLA underwent degradation within one month in a substrate that simulated standard industrial composting. Regardless of the initial structure of the samples, the number-average molecular weight (M<sub>n</sub>) decreased to 4 kDa while the degree of crystallinity increased to about 70% after 21 days of composting. Addition of an inoculant to the standard substrate resulted in the accelerated degradation of the PLA samples for one week due to an abiotic hydrolysis. These findings have confirmed that industrial composting could solve the problem of plastic disposal at least for PLA.https://www.mdpi.com/2073-4360/15/19/4017polylactidecompostinghydrolytic degradationbiodegradationstructuregel permeation chromatography |
| spellingShingle | Elena Trofimchuk Valeria Ostrikova Olga Ivanova Marina Moskvina Anna Plutalova Tatyana Grokhovskaya Anna Shchelushkina Alexander Efimov Elena Chernikova Shenghua Zhang Vladimir Mironov Degradation of Structurally Modified Polylactide under the Controlled Composting of Food Waste Polymers polylactide composting hydrolytic degradation biodegradation structure gel permeation chromatography |
| title | Degradation of Structurally Modified Polylactide under the Controlled Composting of Food Waste |
| title_full | Degradation of Structurally Modified Polylactide under the Controlled Composting of Food Waste |
| title_fullStr | Degradation of Structurally Modified Polylactide under the Controlled Composting of Food Waste |
| title_full_unstemmed | Degradation of Structurally Modified Polylactide under the Controlled Composting of Food Waste |
| title_short | Degradation of Structurally Modified Polylactide under the Controlled Composting of Food Waste |
| title_sort | degradation of structurally modified polylactide under the controlled composting of food waste |
| topic | polylactide composting hydrolytic degradation biodegradation structure gel permeation chromatography |
| url | https://www.mdpi.com/2073-4360/15/19/4017 |
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