Animal-Derived and Plant-Derived Protein Supplement Feeds Are Important Sources of Organophosphate Esters in the Food Supply

文献类型： 外文期刊

第一作者： Zhao, Nannan

作者： Zhao, Nannan;Liu, Yifei;Wang, Peilong;Su, Xiaoou;Li, Xiaomin;Fu, Jie

作者机构：

关键词： plant-derived protein feed; animal-derived protein feed; organophosphate esters; flame retardants; analytical methods

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

ISSN： 0021-8561

年卷期： 2020 年 68 卷 42 期

页码：

收录情况： SCI

摘要： Animal protein supplement feeds (APFs) are important raw feed materials for livestock. APFs might be susceptible to organophosphate esters (OPEs) but have not been paid attention yet. In the present study, animal-derived (meat meal, feather meal, and blood meal) and plant-derived APFs were all found to contain detectable levels of OPEs, with 16 target OPEs ranging from 12.6 ng/g dry weight (dw) to 301 ng/g dw. Meat meal contained the highest OPE level (mean: 117 +/- 75.6 ng/g dw), followed by feather meal (54.6 +/- 30.0 ng/g dw), plant-derived feed (41.9 +/- 16.0 ng/g dw), and blood meal (28.0 +/- 12.0 ng/g dw). Considering its widespread consumption, plant-derived APFs might be an important source of OPE exposure for livestock. Dust adhesion contributed to OPE contamination both in feather meal and plant-derived APFs. Congener patterns varied among the different APFs. Tris(2-chloroisopropyl) phosphate dominated in the plant-derived feed and blood meal, while tris(2-chloroethyl) phosphate and triphenyl phosphate were the major contributors in meat meal and feather meal, respectively. Tributyl phosphate and tri-iso-butyl phosphate were found to be statistically correlated in all APFs (p < 0.01), indicating their similar behavior and common sources. The protein-associated transport pathways of OPEs need to be studied separately for different protein matrices in the future.

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