微量元素在富士苹果中的分布  

Distribution of Six Trace Elements in Fuji Apple

作　　者：芮玉奎[1] 曲桂芹[2] 张福锁[1] 

机构地区：[1]中国农业大学资源与环境学院,北京100094 [2]中国农业大学食品科学与营养工程学院,北京100083

出　　处：《光谱学与光谱分析》2009年第2期509-510,共2页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(30500352);国家科技支撑计划项目(2006BAD25B02;208BADA4B05);长江学者和创新团队发展计划项目(IRT0511);农业部"948"重大国际合作项目(202003-Z53);中国农业大学科研启动基金项目(2005028)资助

摘　　要：微量元素是人体必需的营养成分,微量元素的摄入量直接影响人体的健康。文章应用ICP-MS分析了市场销售的富士苹果果皮和果肉中微量元素的含量。结果显示苹果皮中含有丰富的人体必需元素,特别是Ca,Mn,Fe,Mo和I,含量分别达到197910,1623,14400,47和91 ng.g-1.FW,果肉中分别是58360,281,550,18和24 ng.g-1.FW,果皮含量显著高于果肉,尤其是铁、锰、碘分别高出25.18,4.78和2.79倍。只有Se含量相反,果皮中是2 ng.g-1.FW,果肉中高出一倍是4 ng.g-1.FW。这些结果表明苹果皮微量元素丰富,在食用时尽量减少果皮的损失,如果没有农药、重金属等污染清洗后即可食用。微量元素在苹果果实中分配规律的机理还需要进一步研究。Trace elements are important nutritional elements for human health. Six trace elements in Fuji apple skin and pulp were analyzed by the method of ICP-MS. The results showed that the concentrations of Ca, Mn, Fe, Se, Mo and 1 were 197 910, 1 623, 14 400, 2, 47 and 91 ng · g^-1 . FW in apple skin respectively; and 58 360, 281, 550, 4, 18 and 24 ng · g^-1 . FW respectively in apple pulp. The concentrations of most trace elements （Ca, Mn, Fe, Mo and I） in apple skin were several times higher than those in apple pulp, especially the concentrations of Fe, Mn and I in skin was 25. 18, 4.78 and 2.79 times higher than those in pulp, except Se （2 ng · g^-1 . FW in skin and 4 ng · g^-1 . FW in pulp）. So we should not peel apples before we eat them from regions where were not polluted by pesticides and heavy metals.

关 键 词：富士苹果 ICP-MS 微量元素 

分 类 号：O657.3[理学—分析化学]