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Residue Analysis and Assessment of the Risk of Dietary Exposure to Domoic Acid in Shellfish from the Coastal Areas of China

文献类型： 外文期刊

作者： Zheng, Guanchao 1 ; Wu, Haiyan 1 ; Che, Hanyu 1 ; Li, Xiaokang 1 ; Zhang, Zhihua 4 ; Peng, Jixing 1 ; Guo, Mengmeng 1 ; Tan, Zhijun 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Testing & Evaluat Aquat Prod Safety & Qual, Minist Agr & Rural Affairs, Qingdao 266071, Peoples R China

2.Ocean Univ China, Coll Food Sci & Engn, Qingdao 266003, Peoples R China

3.Shanghai Ocean Univ, Coll Food Sci & Technol, Shanghai 201306, Peoples R China

4.Hebei Prov Aquat Prod Qual Inspection & Testing St, Shijiazhuang 050011, Peoples R China

5.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Peoples R China

6.Dalian Polytech Univ, Collaborat Innovat Ctr Seafood Deep Proc, Dalian 116034, Peoples R China

关键词： domoic acid; shellfish; liquid chromatography-tandem mass spectrometry (LC-MS; MS); risk assessment; China

期刊名称：TOXINS （ 影响因子：5.075； 五年影响因子：5.305 ）

ISSN：

年卷期： 2022 年 14 卷 12 期

页码：

收录情况： SCI

摘要： Harmful algal blooms in Chinese waters have caused serious domoic acid (DA) contamination in shellfish. Although shellfish are at particular risk of dietary exposure to DA, there have been no systematic DA risk assessments in Chinese coastal waters. A total of 451 shellfish samples were collected from March to November 2020. The presence of DA and four of its isomers were detected using liquid chromatography-tandem mass spectrometry. The spatial-temporal distribution of DA occurrence and its potential health risks were examined. DA was detected in 198 shellfish samples (43.90%), with a maximum level of 942.86 mu g/kg. DA was recorded in all 14 shellfish species tested and Pacific oysters (Crassostrea gigas) showed the highest average DA concentration (82.36 mu g/kg). The DA concentrations in shellfish showed distinct spatial-temporal variations, with significantly higher levels of occurrence in autumn than in summer and spring (p < 0.01), and particularly high occurrence in Guangdong and Fujian Provinces. The detection rates and maximum concentrations of the four DA isomers were low. While C. gigas from Guangdong Province in September showed the highest levels of DA contamination, the risk to human consumers was low. This study improves our understanding of the potential risk of shellfish exposure to DA-residues.

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