Heavy metal contamination and risk assessment in winter jujube (Ziziphus jujuba Mill. cv. Dongzao)

文献类型： 外文期刊

第一作者： Xu, Min

作者： Xu, Min;Kong, Xiabing;Han, Lingxi;Wan, Haoliang;Nie, Jiyun;Chen, Qiusheng;Zhang, Qiang;Liu, Lu;Li, Qingjun;Hao, Bianqing;Zhao, Xubo;Nie, Jiyun

作者机构：

关键词： Winter jujube; Heavy metals; ICP-MS; Potential risks

期刊名称：FOOD AND CHEMICAL TOXICOLOGY （ 影响因子：4.3； 五年影响因子：5.1 ）

ISSN： 0278-6915

年卷期： 2023 年 174 卷

页码：

收录情况： SCI

摘要： Winter jujube (Ziziphus jujuba Mill. cv. Dongzao) is a major fresh-eating jujube fruit with various important nutrients for humans. It can absorb heavy metals from polluted air, water and soils and applied pesticides, which may pose potential threats to consumers. Here, to evaluate the content of heavy metals in winter jujube and systematically evaluate the potential risks, we collected 212 winter jujube samples from four main producing areas in China and determined the contents of eight heavy metals (Cd, Cr, Pb, Ni, Cu, Zn, As, and Mn) using inductively coupled plasma mass spectrometer (ICP-MS). Based on the integrated pollution index (IPI) evaluation standard, more than 99.06% of samples were at safe levels. Moreover, clustering analysis divided the eight heavy metals into four groups, namely Cr/Ni, Cd/Pb, Cu/Mn/Zn, and As. Importantly, none of the analyzed heavy metals posed risks to adults as indicted by the average carcinogenic and non-carcinogenic risks. Notably, Cr and Cd could pose low carcinogenic risks to children (<= 12 age group) when their concentration reached the 90th percentile. This study systematically assessed the health risks associated with heavy metal intake through winter jujube consumption and highlighted the necessity of constant heavy metal monitoring in winter jujube.

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