生物富硒对灵芝营养成分的影响

在人工栽培灵芝中，通过外施硒盐以生物转化法获得富硒灵芝，以不同含硒量的富硒灵芝子实体为试样，系统研究了灵芝生物富硒后对其主要营养成分多糖、蛋白质、氨基酸和矿物质等的影响。结果表明：硒可以明显提高灵芝中多糖、蛋白质以及氨基酸的含量，但并不改变灵芝蛋白质的分布和蛋白质中氨基酸的组成配比，而对矿质元素则有不同的影响，如富硒灵芝子实体中人体必需微量营养元素硒有极明显地增加，而铜和钼等人体必需微量元素的含量有一定量的增加，但铁、钙、锶等矿质元素的含量则有所下降。

Effect of selenium on the nutritional components of Ganoderma lucidum

The effect of selenium on the nutritional components of Ganoderma lucidum (GL) such as polysaccharides,proteins,amino acids,and mineral elements was studied using Se-enriched Ganoderma lucidum (Se-GL) of different Se content as tested samples.The Se-enriched Ganoderma lucidum was obtained by cultivating Ganoderma lucidum in the substrate added different content of selenite.The results showed that the contents of polysaccharides,proteins,and amino acids of Se-GL were higher than those of GL.Moreover,selenium hardly changed the distribution of proteins in Se-GL and the composition of amino acids in proteins of Se-GL.However,as for mineral elements,the content of Se that has been proved a powerful element in preventing and curing cancer increased definitely.Some essential elements such as Cu and Mo were raised,while the contents of other elements such as Fe,Ca and Sr were reduced after GL transformed selenium.