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香菇中7种微量元素含量的调查与分析
引用本文:陆剑飞,梁赤周.香菇中7种微量元素含量的调查与分析[J].浙江农业学报,2014,26(4):1078.
作者姓名:陆剑飞  梁赤周
作者单位:浙江省农产品质量监督检验测试中心,浙江 杭州 310020
基金项目:浙江省公益性技术应用研究项目“特色果蔬安全风险因子评估及关键控制技术研究”(2014C22002)
摘    要: 采用电感耦合等离子体质谱仪(ICP MS)法测定了浙江省10个县(市、区)香菇中Cu,Fe,Zn,Cr,Ni,Se和Mn等7种微量元素的含量,并进行统计分析,7种元素含量均符合正态或对数正态分布。其背景值分别是Zn 86029 mg·kg-1, Fe 53845 mg·kg-1,Mn 22159 mg·kg-1,Cu 10912 mg·kg-1, Se 00473 mg·kg-1, Cr 00056 mg·kg-1,Ni 0 mg·kg-1。结果表明: 7种微量元素含量存在区域差异和总体正相关性;与一般蔬菜相比,Zn含量是其3~5倍,Cu含量是其1~2倍,Mn和Se含量相当;Ni和Cr的含量远低于国家食品安全标准。

关 键 词:香菇  微量元素  背景值  营养安全  

Investigation and analysis of 7 kinds of trace elements in Lentinus edodes#br#
LU Jian fei,LIANG Chi zhou.Investigation and analysis of 7 kinds of trace elements in Lentinus edodes#br#[J].Acta Agriculturae Zhejiangensis,2014,26(4):1078.
Authors:LU Jian fei  LIANG Chi zhou
Institution:Agricultural Products Quality Supervision and Testing Center in Zhejiang Province, Hangzhou 310020,China
Abstract:The content of 7 kinds of trace elements, Cu, Fe, Zn, Cr, Ni, Se and Mn, were determined by ICP MS in 10 counties (cities, districts) of Zhejiang province. The statistical analysis showed that the content of 7 kinds of elements fitted normal or lognormal distribution. The background values were 86029 mg·kg-1 for Zn, 53845 mg·kg-1 for Fe, 22159 mg·kg-1 for Mn, 10912 mg·kg-1 for Cu, 00473 mg·kg-1 for Se, 00056 mg·kg-1 for Cr and 0 mg·kg-1 for Ni. It showed regional differences and overall positive correlation among the content of 7 trace elements. Compared with the ordinary vegetables, the content of Zn was 3-5 times higher, the content of Cu was 1-2 times higher, and Mn and Se content were similar. The contents of Ni and Cr were far lower than the national food safety standards.
Keywords:Lentinus edodes  trace element  background value  nutrition security
  
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