Effects of polystyrene nanoplastics on the amino acid composition of Asian Clam ( Corbicula fluminea )

文献类型： 外文期刊

第一作者： Hu, Fengyang

作者： Hu, Fengyang;Cai, Yajie;Kong, Lingliang;Zhou, Min;Sun, Dafa;Guo, Xue;Wang, Xuesong;Mai, Yongzhai;Li, Wei

作者机构：

关键词： Corbicula fluminea; Polystyrene nanoplastics; Tissue damage; Muscle nutrition; Amino acids

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.0； 五年影响因子：6.0 ）

ISSN： 0023-6438

年卷期： 2024 年 198 卷

页码：

收录情况： SCI

摘要： Because the effect of nanoplastics (NPs) on muscle nutrition is poorly understood, a systematic study of the growth performance, tissue damage, and amino acid composition of Asian clam ( Corbicula fluminea ) under polystyrene nanoplastic (PS-NP) treatment was performed by combining short- and long-term treatments together. The primary results showed the shell length, height, and width increased as time progressed, whereas the body weight of C . fluminea revealed no significant difference between the PS-NP -treated clams and the blank control during the entire experiment. Histopathology analyses manifested the inflammatory cell infiltration and vacuolization rates of gill, gut, gonads, and muscle were elevated under PS-NP treatment in comparison with those of the blank control, indicating PS-NP -induced tissue damage occurred irreversibly. Downregulated SOD activity and upregulated CAT and GPX activities were detected, accompanied by increased MDA and GSH levels, suggesting PS-NPs induced tissues damage associated with its role as an antioxidant system disruptor. Levels of four bitter amino acids (Val, Met, Ile, Leu) significantly increased in the PS-NP-treated group compared to levels in the blank control, which was the dominant variation in muscle nutrition. As a result of these changes, the meat quality of C . fluminea decreased, which is a novel discovery of this work.

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