Quality of cultured eels as affected by pollution sources and risk assessment of dioxins and dioxin-like polychlorinated biphenyls

被引：0
|
作者：
Liu, Hao [1 ,2 ]
Chen, Jianan [1 ]
Dong, Meng [1 ]
Pang, Jie [2 ]
Qin, Lei [1 ]
Huang, Xuhui [1 ]
机构：
[1] Dalian Polytech Univ, Natl Engn Res Ctr Seafood,Dalian Technol Innovat, Collaborat Innovat Ctr Seafood Deep Proc, SKL Marine Food Proc & Safety Control,Sch Food Sc, Dalian 116034, Peoples R China
[2] Fujian Agr & Forestry Univ, Coll Food Sci, Fuzhou 350002, Peoples R China
来源：
FOOD PRODUCTION PROCESSING AND NUTRITION | 2024年 / 6卷 / 01期
关键词：
Eel; Dioxins; Dioxin-like polychlorinated biphenyls; Pollution sources; Risk index; DIBENZO-P-DIOXINS; DIETARY-INTAKE; EUROPEAN EEL; PCBS; EXPOSURE; CONTAMINATION; ACCUMULATION; ENVIRONMENT; TRENDS; FOODS;
D O I：
10.1186/s43014-023-00182-9
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
The aim of this research was to determine the residues of dioxins and dioxin-like polychlorinated biphenyls in cultured eel and find out the source of pollution and the distribution pattern of eels. One hundred samples of eel, 4 fodder samples, and 12 environmental samples (water, plants, and soil) were collected from 4 cities and counties in Jiangxi Province, China. The contents of 17 kinds of dioxins (PCDD/Fs) and 12 kinds of dioxin-like polychlorinated biphenyls (dl-PCBs) were determined by high-resolution gas chromatography-tandem mass spectrometry, and the exposure risk was evaluated by using risk index. The total toxicity equivalence quantity (TEQ) of dioxin and dioxin-like polychlorinated biphenyls in eel and fodder samples collected in the study area were 0.65 +/- 0.31 pg/g and 0.10 +/- 0.02 pg/g, respectively. Dl-PCBs were the main dioxin pollution in eel and fodder samples. 2,3',4,4',5-pentachlorodiphenyl and 2,3,3',4,4'-pentachlorobiphenyl were the main contributing monomers. The environmental samples were mainly polluted by polychlorinated dibenzo-p-dioxins (PCDDs), with the main contributing monomer being Octachlorodibenzodioxins (OCDD), while 3,3',4,4',5-pentachlorobiphenyl and 2,3,4,7,8-pentachlorodibenzofuran were the main toxic compounds in eel and fodder. The dioxin pollution of eels cultured in Jiangxi Province was mainly from fodder polluted via dl-PCBs. The meat segment VI (tail) exhibited a strong enrichment effect of polychlorinated benzofurans (PCDFs). It should be the key part for dioxins and dioxin-like polychlorinated biphenyls assessment. Further, the results were helpful to improve the edible safety of eel products and the efficiency of the risk assessment of dioxins and dioxin-like polychlorinated biphenyls in fish.
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页数：10
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