中国农业科技导报 ›› 2023, Vol. 25 ›› Issue (1): 223-233.DOI: 10.13304/j.nykjdb.2022.0475

• 海洋农业 淡水渔业 • 上一篇    

湛江市养殖墨西哥湾扇贝中14种微量元素的分布特征及其膳食暴露评估

方昕1(), 黄和1(), 周雪巍2()   

  1. 1.广东海洋大学食品科技学院,广东省水产品加工与安全重点实验室,广东普通高等学校水产品深加工重点实验室,广东 湛江 524088
    2.北京工商大学食品与健康学院,北京 100048
  • 收稿日期:2022-06-06 接受日期:2022-08-20 出版日期:2023-01-15 发布日期:2023-04-17
  • 通讯作者: 黄和,周雪巍
  • 作者简介:方昕 E-mail:m18545655699@163.com
  • 基金资助:
    广东海洋大学引进人才科研启动费项目(060302042008);广东省科技计划项目(2014A02020812);国家自然科学基金项目(31972163);广东省高校科技创新团队项目(2021KCXTD021)

Distribution of 14 Trace Elements in Argopecten irradians concentricus from Zhanjiang City and Their Dietary Exposure Assessment

Xin FANG1(), He HUANG1(), Xuewei ZHOU2()   

  1. 1.Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety,Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution,College of Food Science and Technology,Guangdong Ocean University,Guangdong Zhanjiang 524088,China
    2.College of Food and Health,Beijing Technology and Business University,Beijing 100048,China
  • Received:2022-06-06 Accepted:2022-08-20 Online:2023-01-15 Published:2023-04-17
  • Contact: He HUANG,Xuewei ZHOU

摘要:

为阐明湛江市养殖墨西哥湾扇贝中14种微量元素的含量及分布特征,并进行膳食暴露风险评估,采用电感耦合等离子体质谱法(inductively coupled plasma mass spectrometry, ICP-MS)测定了6个养殖区域扇贝全部软体部分、性腺、外套膜、消化腺、闭壳肌、鳃和海水中14种微量元素的含量,通过目标危害系数(target hazard quotient,THQ)评估有害微量元素潜在的膳食暴露风险。结果表明,全部样品中14种微量元素均有检出,含量由高到低依次为Mn>Fe>Zn>Sr>As>Cd>V>Cu>Co>Ba>Pb>Cr>Ni>Ga,并且表现出区域差异性。微量元素主要分布在扇贝的性腺、消化腺和鳃中,养殖区域海水中与扇贝中Cd的含量变化趋势相同,扇贝体内的微量元素含量存在季节性差异。扇贝中As与Cd含量间呈极显著正相关(P<0.01),可能对人体有害微量元素的复合目标危害系数(total target hazard quotient, TTHQ)值为0.208(<1)。综上,扇贝体内微量元素分布具有组织特异性,其中As与Cd可能具有相同的污染源,并且Cd的蓄积受养殖环境的影响,食用墨西哥湾扇贝不存在有害微量元素暴露风险,不会引起健康风险。研究结果为扇贝中有害元素膳食暴露风险评估提供科学数据。

关键词: 墨西哥湾扇贝, 微量元素, 可能有害元素, 分布, 膳食暴露

Abstract:

In order to clarify the contents and distribution characteristics of 14 trace elements in Argopecten irradians concentricus in different aquaculture areas in Zhanjiang city, and to evaluate the dietary exposure risks, fourteen trace elements in whole soft parts, gonad, mantle, digestive gland, muscle, gill and seawater of farmed shellfish from 6 aquaculture areas were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The target hazard quotient (THQ) was used to evaluate potential dietary exposure risks of toxic trace elements. The results indicated that 14 trace elements were detected in all samples, and the content rank was as follows: Mn>Fe>Zn>Sr>As>Cd>V>Cu>Co>Ba>Pb>Cr>Ni>Ga, which also showed regional differences. Trace elements were mainly presented in the gonad, digestive gland and gill. The contents of Cd in aquaculture seawater had the same trends with that in the Argopecten irradians concentricus, and there were seasonal differences among trace elements in shellfish. Significantly positive correlation was observed between As and Cd (P<0.01). The total target hazard quotient (TTHQ) value of potentially toxic elements was 0.208. Therefore, the distributions of trace elements in Argopecten irradians concentricus were present tissue-specific, in which As and Cd might have the same pollution source, and the accumulation of Cd was affected by the aquaculture environment. There was no dietary exposure risk of toxic trace elements and no health risk induced by the ingestion of Argopecten irradians concentricus, which provided scientific data for the risk assessment of dietary exposure to harmful elements in Argopecten irradians concentricus.

Key words: Argopecten irradians concentricus, trace elements, potentially toxic elements, distribution, dietary exposure

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