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| 东北稻蟹中18种微量元素含量及健康风险评价 |
| The levels of 18 trace elements and health risk assessment in rice-crab (Eriocheir sinensis) from northeast China |
| 投稿时间：2018-05-12 |
| DOI：10.13254/j.jare.2018.0119 |
| 中文关键词: 河蟹，微量元素，稻田养殖，食用安全，东北 |
| 英文关键词: river crab, trace element, rice paddy culture, food safety, northeast China |
| 基金项目:中国水产科学研究院基本科研业务费项目（2018HY-ZD0604）；国家公益性行业（农业）科研专项（201503108） |
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| 中文摘要: |
| 为探讨东北地区（黑龙江省、吉林省和辽宁省）稻田养殖河蟹的微量元素含量水平和食用安全性，于2017年9月在东北主要养殖区采集稻田养殖河蟹56份，利用电感耦合等离子体质谱法（ICP-MS）检测了河蟹体内18种微量元素的含量，并采用单因子污染指数（Pi）和每周可耐受摄入量（PTWI）、目标危害商值（THQ）法分别评价了其污染程度和食用安全性。结果表明：河蟹中检出的大多数微量元素含量远高于该地区池塘养殖的淡水鱼类；吉林省河蟹体内的Cr、Cd、U等10种微量元素含量与其他两省份相比存在显著性差异（P<0.05）；所有样品的Cu、Pb、Cd和Cr含量均未超出国家食品安全标准；5种重金属（Cu、Zn、Pb、Cd和Cr）的成人每周实际摄入量（AWI）低于食品添加剂联合专家委员会（JECFA）推荐的每周可耐受摄入量；5种重金属和其他4种有害微量元素（Ba、U、Ag和Be）的人体每日摄入量（EDI）低于美国环保署（USEPA）推荐的参考剂量（RfD）。研究表明食用东北稻田养殖河蟹摄入的微量元素对食用人群没有明显的健康风险。在检测的18种微量元素中，Ba、Pb和Cd对复合污染物风险指数（HI）贡献率较高，是主要的风险元素。 |
| 英文摘要: |
| In order to investigate the concentrations and food safety of 18 trace elements in rice-crab(Eriocheir sinensis) from northeastern China (including Heilongjiang, Jilin and Liaoning Provinces), a total of 56 crab samples were collected from main rice-crab aquiculture area in September 2017. The concentrations of 18 trace elements were detected by inductively coupled plasma-mass spectrometry(ICP-MS), and the pollution levels and potential health risks were estimated by single-factor pollution index(Pi), provisional tolerated weekly intake(PTWI) and target hazard quotient(THQ), respectively. Results showed that contents of most trace element in crab were much more higher than in freshwater fish obtained from pond. Significant differences in ten trace element including Cr, Cd and U were found in samples between Jilin Province and the other two regions(P<0.05). The contents of Cu, Pb, Cd and Cr in all the samples were not exceeded national standards. The adult weekly intake(AWI) of analyzed five heavy elements(including Cu, Zn, Pb, Cd and Cr) were lower than PTWI recommended by JECFA. The estimated daily intake(EDI) of the five heavy elements and four toxic trace elements(including Ba, U, Ag and Be) were lower than the reference dose(RfD) recommended by USEPA. All results indicated that trace elements intake form the rice crab had no significant health risk to the health risks. The trace elements of Ba, Pb and Cd were the main risk elements, which had high contribution rate to HI. |
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