Unique Raoultella species isolated from petroleum contaminated soil degrades polystyrene and polyethylene
Polyolefin plastics, such as polyethylene (PE) and polystyrene (PS), are the most widely used synthetic plastics in our daily life. However, the chemical structure of polyolefin plastics is composed of carbon-carbon (C-C) bonds, which is extremely stable and makes polyolefin plastics recalcitrant to...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651323007364 |
| _version_ | 1827816212526006272 |
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| author | Yingbo Yuan Pan Liu Yi Zheng Qingbin Li Junling Bian Quanfeng Liang Tianyuan Su Longyang Dian Qingsheng Qi |
| author_facet | Yingbo Yuan Pan Liu Yi Zheng Qingbin Li Junling Bian Quanfeng Liang Tianyuan Su Longyang Dian Qingsheng Qi |
| author_sort | Yingbo Yuan |
| collection | DOAJ |
| description | Polyolefin plastics, such as polyethylene (PE) and polystyrene (PS), are the most widely used synthetic plastics in our daily life. However, the chemical structure of polyolefin plastics is composed of carbon-carbon (C-C) bonds, which is extremely stable and makes polyolefin plastics recalcitrant to degradation. The growing accumulation of plastic waste has caused serious environmental pollution and has become a global environmental concern. In this study, we isolated a unique Raoultella sp. DY2415 strain from petroleum-contaminated soil that can degrade PE and PS film. After 60 d of incubation with strain DY2415, the weight of the UV-irradiated PE (UVPE) film and PS film decreased by 8% and 2%, respectively. Apparent microbial colonization and holes on the surface of the films were observed by scanning electron microscopy (SEM). Furthermore, the Fourier transform infrared spectrometer (FTIR) results showed that new oxygen-containing functional groups such as -OH and -CO were introduced into the polyolefin molecular structure. Potential enzymes that may be involved in the biodegradation of polyolefin plastics were analyzed. These results demonstrate that Raoultella sp. DY2415 has the ability to degrade polyolefin plastics and provide a basis for further investigating the biodegradation mechanism. |
| first_indexed | 2024-03-12T00:11:38Z |
| format | Article |
| id | doaj.art-ed72b2d585d042c8a571ba70ea98f889 |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-03-12T00:11:38Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-ed72b2d585d042c8a571ba70ea98f8892023-09-16T05:28:15ZengElsevierEcotoxicology and Environmental Safety0147-65132023-09-01263115232Unique Raoultella species isolated from petroleum contaminated soil degrades polystyrene and polyethyleneYingbo Yuan0Pan Liu1Yi Zheng2Qingbin Li3Junling Bian4Quanfeng Liang5Tianyuan Su6Longyang Dian7Qingsheng Qi8State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, Qingdao 266237, ChinaState Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, Qingdao 266237, ChinaState Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, Qingdao 266237, ChinaState Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, Qingdao 266237, ChinaState Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, Qingdao 266237, ChinaState Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, Qingdao 266237, ChinaCorresponding authors.; State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, Qingdao 266237, ChinaCorresponding authors.; State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, Qingdao 266237, ChinaState Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, Qingdao 266237, ChinaPolyolefin plastics, such as polyethylene (PE) and polystyrene (PS), are the most widely used synthetic plastics in our daily life. However, the chemical structure of polyolefin plastics is composed of carbon-carbon (C-C) bonds, which is extremely stable and makes polyolefin plastics recalcitrant to degradation. The growing accumulation of plastic waste has caused serious environmental pollution and has become a global environmental concern. In this study, we isolated a unique Raoultella sp. DY2415 strain from petroleum-contaminated soil that can degrade PE and PS film. After 60 d of incubation with strain DY2415, the weight of the UV-irradiated PE (UVPE) film and PS film decreased by 8% and 2%, respectively. Apparent microbial colonization and holes on the surface of the films were observed by scanning electron microscopy (SEM). Furthermore, the Fourier transform infrared spectrometer (FTIR) results showed that new oxygen-containing functional groups such as -OH and -CO were introduced into the polyolefin molecular structure. Potential enzymes that may be involved in the biodegradation of polyolefin plastics were analyzed. These results demonstrate that Raoultella sp. DY2415 has the ability to degrade polyolefin plastics and provide a basis for further investigating the biodegradation mechanism.http://www.sciencedirect.com/science/article/pii/S0147651323007364Plastic pollutionBiodegradationPolyethylenePolystyreneRaoultella sp |
| spellingShingle | Yingbo Yuan Pan Liu Yi Zheng Qingbin Li Junling Bian Quanfeng Liang Tianyuan Su Longyang Dian Qingsheng Qi Unique Raoultella species isolated from petroleum contaminated soil degrades polystyrene and polyethylene Ecotoxicology and Environmental Safety Plastic pollution Biodegradation Polyethylene Polystyrene Raoultella sp |
| title | Unique Raoultella species isolated from petroleum contaminated soil degrades polystyrene and polyethylene |
| title_full | Unique Raoultella species isolated from petroleum contaminated soil degrades polystyrene and polyethylene |
| title_fullStr | Unique Raoultella species isolated from petroleum contaminated soil degrades polystyrene and polyethylene |
| title_full_unstemmed | Unique Raoultella species isolated from petroleum contaminated soil degrades polystyrene and polyethylene |
| title_short | Unique Raoultella species isolated from petroleum contaminated soil degrades polystyrene and polyethylene |
| title_sort | unique raoultella species isolated from petroleum contaminated soil degrades polystyrene and polyethylene |
| topic | Plastic pollution Biodegradation Polyethylene Polystyrene Raoultella sp |
| url | http://www.sciencedirect.com/science/article/pii/S0147651323007364 |
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