食用植物油原料及其产品中金属元素迁移性的统计分析

Investigation of metallic elements migration in edible vegetable oils raw materials and their products

采用原子收光谱法测定6种常用食用植物油原料及其压榨油和渣饼中8种微量金属元素含量并计算迁移率,分析食用植物油原料及其产品中金属元素迁移性。结果表明:6种食用植物油原料中铁元素含量均较高;8种金属元素从原料中迁移到油中的量均比较少,主要残留于渣饼中;有害金属铬元素在油中的迁移率较高,是影响食用植物油品质的关键控制元素。

In order to research the migration of metallic elements in edible vegetable oils raw materials and their products,the contents of eight metallic elements in six common edible vegetable oils raw materials and their pressed oils and oil residue were determined by atomic absorption spectrometry,and the migration rates were calculated.The results showed that the iron content in the six edible vegetable oils materials was higher.The migration amount of metallic elements from raw materials to edible oil was relatively low,mainly remaining in the oil residue.The harmful element chromium was the key control element affecting the quality of edible vegetable oil because of its highest migration rate in edible oils.