Distribution of six trace elements in Fuji apple

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 x g(-1) x FW in apple skin respectively; and 58 360, 281, 550, 4, 18 and 24 ng x g(-1) x 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 x g(-1) x FW in skin and 4 ng x g(-1) x FW in pulp). So we should not peel apples before we eat them from regions where were not polluted by pesticides and heavy metals.