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中国精品科技期刊2020
徐飞飞,李跃麒,林珺,等. 典型环境高镉地区常见蔬菜中镉的生物可及性及健康风险评估[J]. 食品工业科技,2022,43(14):293−300. doi: 10.13386/j.issn1002-0306.2021090114.
引用本文: 徐飞飞,李跃麒,林珺,等. 典型环境高镉地区常见蔬菜中镉的生物可及性及健康风险评估[J]. 食品工业科技,2022,43(14):293−300. doi: 10.13386/j.issn1002-0306.2021090114.
XU Feifei, LI Yueqi, LIN Jun, et al. Bioaccessibility of Cadmium in Common Vegetables in Typical Environmental High Cadmium Region and the Health Risk Assessment[J]. Science and Technology of Food Industry, 2022, 43(14): 293−300. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021090114.
Citation: XU Feifei, LI Yueqi, LIN Jun, et al. Bioaccessibility of Cadmium in Common Vegetables in Typical Environmental High Cadmium Region and the Health Risk Assessment[J]. Science and Technology of Food Industry, 2022, 43(14): 293−300. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021090114.

典型环境高镉地区常见蔬菜中镉的生物可及性及健康风险评估

Bioaccessibility of Cadmium in Common Vegetables in Typical Environmental High Cadmium Region and the Health Risk Assessment

  • 摘要: 为研究种植于典型环境高镉(Cadmium,Cd)地区的蔬菜对人体的健康风险,使用电感耦合等离子体质谱(ICP-MS)对种植于该区域的9种常见蔬菜中的元素(Mg、K、Ca、Cu、Zn)及重金属Cd进行检测,并研究蔬菜的烹调方式、消化过程和主要金属元素含量对Cd生物可及性的影响。同时,采用健康风险值(THQ)对膳食消费蔬菜暴露Cd的风险进行评估。结果表明,蔬菜样品中重金属Cd的平均含量范围为0.02~0.30 mg/kg。水煮可显著降低蔬菜中的Cd含量(P<0.05),而生炒对蔬菜中的Cd含量未有显著影响(P>0.05)。对于生物可及性,水煮可显著提高蔬菜中Cd的生物可及性(P<0.05),而生炒则无显著影响(P>0.05)。利用相关分析可知,Cd的生物可及性与K和Cu之间存在负相关关系(P<0.05)。若将Cd生物可及性纳入健康风险评估,仅高消费生菜人群的THQ大于1,提示当地居民消费蔬菜引起的健康风险较小。然而,仍需关注环境高镉地区其他膳食途径暴露Cd的慢性健康危害。因此,当地居民应选择消费低于Cd限量标准的蔬菜,并进行合理烹调以降低健康风险。

     

    Abstract: In order to assess the health risk of consumption of local planted vegetables in high-level Cd contaminated region, inductively coupled plasma mass spectrometry (ICP-MS) was employed to determine the elements of Cd, Mg, K, Ca, Cu and Zn in the commonly consumed vegetables collected from this region. The effects of the cooking methods, the process of gastrointestinal digestion, and the concentrations of elements on the bioaccessibility of Cd were investigated using in vitro RIVM model. In addition, the health risk of Cd exposure via vegetable consumption for the local residents were evaluated using the target hazard quotients (THQs). The results showed that the average contents of Cd in vegetables were ranged from 0.02 to 0.30 mg/kg. Cooking methods did influence the concentration of Cd in the samples, indicating that boiling significantly reduced the concentration of Cd in vegetables (P<0.05), while frying had no significant effect (P>0.05). In contrast, boiling significantly increased the bioaccessibility of Cd (P<0.05), and frying had no significance (P>0.05). The results of correlation analysis showed that Cd bioaccessibility had significantly negative correlation with K and Cu (P<0.05), indicating that mineral elements in vegetables could influence on the bioaccessibility of Cd in vegetables. The results of health risk assessment showed that only the THQ of sub-population of highly consumed with lettuce higher than 1 when the Cd bioaccessibility was considered in the process of health risk assessment, suggesting that the health risk of local residents was low with consumption of local planted vegetables. However, the chronic hazards of Cd exposure should be highly concerned on other dietary sources in this high-level Cd region. Therefore, local residents should choose the vegetables lower than the maximum limit values with appropriate cooking to reduce health risk.

     

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