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1.吸收:70公斤的人体含80～120毫克铜。每天需铜约2.5毫克。在不同地区,摄入量变化极大。土壤中铜含量影响食物链中铜的含量。贝类、内脏、豆类、干蔬菜及可可中含多量铜。铜在胃和肠上段吸收,至少有二种吸收机理:一种是依赖能量的过程,通过氨基酸形成氨基酸铜复合物而被吸收;大部分铜通过第二种机理吸收,即与肠粘膜的两种蛋白质相结合,一种是过氧化物歧化
1. Absorption: 70 kg of human body contains 80 to 120 mg of copper. Need about 2.5 mg of copper daily. In different regions, intake varies greatly. The copper content in the soil affects the copper content in the food chain. Shellfish, offal, beans, dried vegetables and cocoa contain large amounts of copper. Copper is absorbed in the stomach and upper intestine and has at least two mechanisms of absorption: one is energy-dependent, which is absorbed by the amino acid forming a copper complex of amino acids; most of the copper is absorbed by the second mechanism, A combination of proteins, one is peroxide dismutation