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 197 910,1 623,14 400,47和91 ng·g-1·FW,果肉中分别是58 360,281,550,18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 I 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.