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微量元素对人类的生命和健康关系十分密切。这些元素在体内的生理意义不尽相同,如铁在机体中参与氧化、运输、交换和组织呼吸过程;锌是很多金属酶的组成成分或是酶的激活剂,并与RNA、DNA和蛋白质的生物合成有密切联系;铜、锰、铝、硒等亦是组成很多酶的成分;是维持人体正常生理不可少的元素。但这些元素在机体内的含量超过一定的阈值或缺乏时,可使人致病甚至威胁生命。稻米是我国南方人民的主要粮食,测定稻米中微量元素含量,为人体营养和健康有关的食物成分提供重要资料。本文总结了近几年测定广东中
Trace elements of human life and health are closely related. The physiological significance of these elements in the body vary, such as iron in the body involved in oxidation, transport, exchange and tissue respiration processes; zinc is a metal enzyme composition or enzyme activator and with RNA, DNA and protein Biosynthesis are closely linked; copper, manganese, aluminum, selenium, etc. is also a component of many enzymes; is essential to maintain the body’s normal physiological elements. However, these elements in the body when the content exceeds a certain threshold or lack of time, can make people sick and even life-threatening. Rice is the staple food of the people in southern China, and the content of trace elements in rice is measured, providing important information for human nutrition and health related food ingredients. This article summarizes the determination of Guangdong in recent years