克山病区与非病区主粮中氨基酸含量对比分析

本文通过对克山病区及非病区主粮小麦、玉米中氨基酸的对比分析,探讨氨基酸含量与克山病的发病关系。从所测的17种氨基酸结果表明:小麦及玉米中的氨基酸含量,病区均低于非病区;小麦中以蛋氨酸含量最低、半胱氨酸次之,玉米中以半胱氨酸含量最低,蛋氨酸次之,这说明进入生物体内含硒氨基酸(蛋氨酸、半胱氨酸)是缺乏的。还证实粮中氨基酸含量多寡受产地生态环境的影响。病区人体从食物链中摄取需要的氨基酸及其营养物含量不足与克山病的发病有密切关系。

A Comparative Analysis of Amino Acid Contents in Staple Grains in Endemic and Non-endemic Areas of Keshan Disease

This paper discusses the relation of amino acid contents with the incidence of Keshan disease by comparative analysis of amino acid in staple grains-wheat and corn in Keshan disease affected and unaffectec areas. Results obtained from 17 kinds of determined amino acids showed that amino acid contents wheat and corn were lower in the affected area than those in unaffected areas; methionine con-tents in wheat were the lowest, and cystene contents the next; and cysteni contents in corn were the lowest, and methionine the next, indicating that crops in affected areas lacked amino acids containing Se (cysteine and methionine). Also, it proved that the amount of amino acids in grains were affected by the ecological environment in the producing areas. The shortage of amino acids and other nutrients obtained from food chains by human beings had close relation with the incidence of Keshan disease in affected areas.