Elemental analysis of the Taiwanese health food Angelica keiskei by INAA
Elemental analysis of the Taiwanese health food Angelica keiskei by INAA
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DOI：
10.1023/a:1015863006311
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发表时间：
2002-06
影响因子：
1.6
通讯作者：
Chien‐Yi Chen
中科院分区：
文献类型：
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作者：
Chien‐Yi Chen
保健食品当归是作为东方草本植物种植和食用的，来自台湾五个农场。在植物的根、鲜叶和茎以及茶包和胶囊等最终产品中确定的微量和微量元素的测定，对于估计建议的每日摄入量以确保最佳健康安全至关重要。样品在冷冻干燥前均质，并用约2.0.1012n.cm-1.s-1的中子通量照射。用中子活化分析法对17种元素进行了分析。在采集的样品中，元素的浓度差异很大，不同农场的含量从105到10-2 mg/g不等。我们发现，铝在植物的根中比在植物的任何其他部位都高度集中。硒是叶片中唯一被分析到10-1毫克/克的元素。同时，根和茎中的砷含量也接近10-2毫克/克。这种草药的元素浓度和最大日摄入量(MDI)与当归(官话中的当归)、川芎(官话中的川芎)和人参(官话中的人参)进行了比较，并与世界卫生组织制定的台湾消费者每日饮食推荐摄入量进行了比较。
The health foodAngelica keiskei, planted and consumed as an oriental herb, was sampled from five farms in Taiwan. The determination of minor and trace elements identified in the roots, fresh leaves and stems of the plant, as well as in end-products such as tea bags and capsules, is essential for estimating the recommended daily intake for ensuring optimum health safety. Samples were homogenized prior to freeze-drying, and were irradiated with a neutron flux at about 2.0.1012n.cm-1.s-1. A total of 17 elements were analyzed using INAA. In the collected samples the elements exist in widely differing concentrations, ranging from 105to 10-2mg/g for different farms. We found that aluminum is more highly concentrated in roots than in any other part of the plant. Selenium was the only element analyzed down to 10-1mg/g in the leaves. Meanwhile, arsenic was also found in the roots and stems at levels of nearly 10-2mg/g. The elemental concentrations and maximum daily intake (MDI) of this herb are compared with those ofAngelica sinensis(Danggui in Mandarin),Ligusticum chuanxiony(Chuanxiong in Mandarin) andPanax ginseng(Ginseng in Mandarin) as well as with the recommended daily dietary intake values for Taiwanese consumers, developed by the WHO.