Biodegradation of Polyethylene by Enterobacter sp. D1 from the Guts of Wax Moth Galleria mellonella
文献类型： 外文期刊
作者： Ren, Liu 1 ; Men, Lina 3 ; Zhang, Zhiwei 3 ; Guan, Feifei 2 ; Tian, Jian 2 ; Wang, Bin 4 ; Wang, Jihua 1 ; Zhang, Yuhong; 1 ;
作者机构： 1.Harbin Normal Univ, Coll Life Sci & Technol, 1 Shida Rd, Harbin 150025, Heilongjiang, Peoples R China
2.Chinese Acad Agr Sci, Biotechnol Res Inst, 12 Zhongguancun South St, Beijing 100081, Peoples R China
3.Shanxi Agr Univ, Coll Forestry, Taigu 030801, Peoples R China
4.Xinjiang Acad Agr Sci, Inst Soil Fertilizer & Agr Water Saving, Urumqi 830091, Peoples R China
关键词： environmental impact; Enterobacter sp; plastic biodegradation; polyethylene; wax moth
期刊名称：INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH （ 影响因子：3.39； 五年影响因子：3.789 ）
ISSN： 1660-4601
年卷期： 2019 年 16 卷 11 期
页码：
收录情况： SCI
摘要： Plastic polymers are widely used in agriculture, industry, and our daily life because of their convenient and economic properties. However, pollution caused by plastic polymers, especially polyethylene (PE), affects both animal and human health when they aggregate in the environment, as they are not easily degraded under natural conditions. In this study, Enterobacter sp. D1 was isolated from the guts of wax moth (Galleria mellonella). Microbial colonies formed around a PE film after 14 days of cultivation with D1. Roughness, depressions, and cracks were detected on the surface of the PE film by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Fourier transform infrared spectroscopy (FTIR) showed the presence of carbonyl functional groups and ether groups on the PE film that was treated with D1. Liquid chromatography-tandem mass spectrometry (LC-MS) also revealed that the contents of certain alcohols, esters, and acids were increased as a result of the D1 treatment, indicating that oxidation reaction occurred on the surface of the PE film treated with D1 bacteria. These observations confirmed that D1 bacteria has an ability to degrade PE.
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