| 云南地质高背景区苹果矿质元素富集特征和营养及健康风险评价 |
| 摘要点击 2068 全文点击 565 投稿时间：2023-09-20 修订日期：2023-12-18 |
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| 中文关键词 苹果 矿质元素 营养评价 健康风险评价 地质高背景 |
| 英文关键词 apples mineral element nutritional evaluation health risk assessment high geological background |
| DOI 10.13227/j.hjkx.20240952 |
| 作者 | 单位 | E-mail | | 刘炎 | 中国农业大学资源与环境学院, 农田土壤污染防控与修复北京市重点实验室, 北京 100193 | ly18888481510@163.com | | 樊玉 | 中国农业大学资源与环境学院, 农田土壤污染防控与修复北京市重点实验室, 北京 100193 | | | 刘江 | 中国农业大学资源与环境学院, 农田土壤污染防控与修复北京市重点实验室, 北京 100193 | | | 贾志玮 | 中国农业大学资源与环境学院, 农田土壤污染防控与修复北京市重点实验室, 北京 100193 | | | 万亚男 | 中国农业大学资源与环境学院, 农田土壤污染防控与修复北京市重点实验室, 北京 100193 | | | 李花粉 | 中国农业大学资源与环境学院, 农田土壤污染防控与修复北京市重点实验室, 北京 100193 | | | 孟凡乔 | 中国农业大学资源与环境学院, 农田土壤污染防控与修复北京市重点实验室, 北京 100193 | | | 王琪 | 中国农业大学资源与环境学院, 农田土壤污染防控与修复北京市重点实验室, 北京 100193 | | | 庄重 | 中国农业大学资源与环境学院, 农田土壤污染防控与修复北京市重点实验室, 北京 100193 | zhuangzhong@cau.edu.cn |
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| 中文摘要 |
| 地质高背景区土壤中矿质元素含量较高,探究高背景区矿质元素在土壤-植物系统中迁移特征,评价重金属累积风险至关重要.为解析云南重金属高背景区苹果中矿质元素富集特征、 营养价值和健康风险,从云南苹果主产区采集土壤和苹果点对点样品30对,测定了苹果和土壤中12种矿质元素含量.试验结果表明,土壤样品中Cd、 As、 Pb和Cr含量超出风险筛选值的比例依次为50%、 17%、 48%和30%,而苹果样品中只有ω（Pb）超过新鲜水果安全限值（0.1 mg·kg-1）,超标率为13.3%.除有害元素外,苹果中ω（K）、 ω（Ca）、 ω（Mg）、 ω（Mn）和ω（Zn）较高,均值依次为1.241 g·kg-1、 0.045 g·kg-1、 0.061 g·kg-1、 0.648 mg·kg-1和0.944 mg·kg-1.营养评价结果表明,食用足量苹果提供K和Cu的营养指数（INQ）均值大于2,可以作为人体摄入K和Cu的主要途径之一.健康风险评价结果显示,单一重金属目标危害系数（THQ）依次为：Cu > As > Cr > Pb > Zn > Cd；多种重金属元素危害指数（HI）小于1,表明食用苹果不会引起明显的重金属暴露风险.研究结果将为地质高背景区土壤-作物系统中矿质元素营养和健康风险提供科学依据. |
| 英文摘要 |
| Considering the extremely high content of soil mineral elements in high geological background areas, it is crucial to understand the transportation and health risks of mineral elements in soil-plant systems. In this study, 30 soil and apple-paired samples were collected from the main apple production areas of Yunnan's high geological background region to determine the contents of mineral elements. The aim was to research the enrichment characteristics, nutritional values, and health risks associated with 12 mineral elements in apples. The results revealed that Cd, As, Pb and Cr contents in soil samples exceeded their corresponding risk screening values with percentages of 50%, 17%, 48%, and 30%, respectively. However, only 13.3% of Pb content in apple samples exceeded the safety limit （0.1 mg·kg-1, fresh fruit）. In addition to the toxic elements, apples had higher contents of K, Ca, Mg, Mn, and Zn, with average contents of 1.241 g·kg-1, 0.045 g·kg-1, 0.061 g·kg-1, 0.648 mg·kg-1, and 0.944 mg·kg-1, respectively. The nutritional evaluation results showed that the index （INQ） of K and Cu were higher than 2 through the consumption of apples, suggesting that apple consumption was one of the primary sources of K and Cu intake. The health risk assessment revealed that the target hazard quotient （THQ） of a single heavy metal was： Cu > As > Cr > Pb > Zn > Cd； the hazard index （HI） of all heavy metals was far lower than 1, indicating that apple consumption did not pose significant heavy metal exposure risks. The results of this study will provide a scientific insight into the nutritional aspects and health risks associated with mineral elements in soil-plant systems within high geological background areas. |
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