紫皮洋葱和黄皮洋葱矿质元素的比较分析

Comparative Analysis Between Pink Skin Onion and Yellow Skin Onion in Mineral Elements

为洋葱的药用和开发利用提供科学依据。采用ICP法测定了2种洋葱中的矿质元素。紫皮洋葱和黄皮洋葱中均含有Fe、Mn、Cu、Zn等7种人体必需的矿质元素,且Zn/Cu比值较小。洋葱的抗衰老及防治冠心病和高血压等作用可能与其含有多种矿质元素有关。

To provide a scientific basis for application of onion.Mineral elements in two kinds of onion were determined by the method of ICP.The results showed that pink skin onion and yellow skin onion contained seven essential microelements（Fe、Mn、Cu、Zn,et al） and Zn/Cu was small.Onion has effects on prevention and treatment of hypertension and coronary heart disease and aging.