小草坝新鲜天麻中多种金属元素评价分析

Evaluation and analysis of many kinds of metal elements in fresh gastrodia elata in Xiaocaoba

中文关键词:  新鲜天麻  小草坝  金属元素  安全评价

英文关键词:fresh gastrodia elata  Xiaocaoba  metallic elements  safety evaluation

中文摘要:

      目的 分析评价云南小草坝新鲜天麻中9种金属元素含量水平。方法 采用电感耦合等离子体质谱法检测云南小草坝新鲜天麻中铁Fe、铜Cu、钴Co、锰Mn、镍Ni、硒Se、砷As、铅Pb、汞Hg的含量, 并使用食品安全指数IFS法进行重金属污染评价。结果 云南小草坝新鲜天麻中各元素均检出, 参照《现行药用植物及制剂进出口绿色行业标准》及《中国药典》2015年版中重金属限量值判定, 54份天麻中Cu、Pb、As、Hg的含量均没有样品超过限量指标。按照GB 2762-2012食品标准进行判定, Pb有40.7%的超标率, As、Hg均未出现超标样品。小草坝产区新鲜天麻中As、Pb、Hg的IFS值均小于1。结论 云南小草坝新鲜天麻中微量元素丰富, 食品安全风险整体上在可接受范围, 但仍需关注可能存在的铅污染水平。

英文摘要:

      Objective To analyze and evaluate the content levels of 9 kinds of metal elements in fresh gastrodia elata of Xiaocaoba in Yunnan. Methods The content of Fe, Cu, Co, Mn, Ni, Se, As, Pb, Hg in fresh gastrodia elata in Xiaocaoba in Yunnan was determined by inductively coupled plasma mass spectrometry, and the food safety index IFS method was used for the assessment of heavy metal pollution. Results All the 9 kinds of metal elements were detected in fresh gastrodia elata of Xiaocaoba in Yunnan. According to the the limit value of heavy metal in Current green industry standards for import and export of medicinal plants and preparations and the 2015 edition of Chinese pharmacopoeia, the content of Cu, Pb, As and Hg in 54 kinds of pieces of gastrodia elata were not over the limit index. According to the GB 2762-2012 food standard, the overstandard rate of Pb was 40.7%, and neither As nor Hg had exceeded the standard. The IFS values of As, Pb and Hg in the fresh gastrodia elata in Xiaocaoba area were all less than 1. Conclusion The trace elements in fresh gastrodia elata in Xiaocaoba in Yunnan are abundant, and the food safety risk is in the acceptable range, but the possible lead pollution level still needs to be concerned.