蜡螟
蜡
聚乙烯
傅里叶变换红外光谱
生物降解
聚合物
化学
微生物学
材料科学
细菌
生物
核化学
有机化学
化学工程
生物化学
毒力
基因
工程类
遗传学
作者
Ren Liu,Lina Men,Zhiwei Zhang,Feifei Guan,Jian Tian,Bin Wang,Jihua Wang,Yuhong Zhang,Wei Zhang
标识
DOI:10.3390/ijerph16111941
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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