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Occurrence of Microplastics in Fish and Shrimp Feeds

文献类型： 外文期刊

作者： Yao, Chunxia 1 ; Liu, Xing 1 ; Wang, Hongmei 2 ; Sun, Xiaolin 3 ; Qian, Qunli 1 ; Zhou, Jiaxin 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Inst Agrofood Stand & Testing Technol, Shanghai 201403, Peoples R China

2.Shanghai Ocean Univ, Coll Marine Ecol & Environm, Shanghai 201306, Peoples R China

3.Shanghai Acad Agr Sci, Ecoenvironm Protect Res Inst, Shanghai 201403, Peoples R China

关键词： Fish meal; Shrimp meal; Microplastics; Statistical analysis

期刊名称：BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY （ 影响因子：2.151； 五年影响因子：2.129 ）

ISSN： 0007-4861

年卷期： 2021 年 107 卷 4 期

页码：

收录情况： SCI

摘要： Plastics with particle sizes of 100 nm to 5 mm are known as microplastics. The contamination of seafood-based feeds by larger microplastics (20 mu m to 5 mm) is a growing concern. Here, we analyzed fish and shrimp meals. Microplastics were extracted using density separation methods and characterized using scanning micro Fourier transform infrared spectroscopy (mu-FT-IR). The average microplastic abundance in shrimp meal was 10.7 microplastics center dot 100 g(-1). In fish meal, 1.02% of the microplastics were smaller than 1 mm, while most of the microplastics in shrimp meal were 1-5 mm. Eight colors of microplastics were observed; black, red, and orange microplastics have been rarely reported in previous studies. The microplastics found included films, fibers, and fragments, with film-type microplastics being the most common. The main chemical components of fiber-type microplastics were olefins and polyester, while film- and fragment-type microplastics were mainly paraffin and polyethylene. Additional in-depth studies of microplastics in feeds are necessary to provide data support for feed safety assessments.

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