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铝是自然界中最广泛的金属元素之一,约占地壳质量的7.45%,广泛存在粘土、长石,云母及很多矿物中,种植的蔬菜、粮食及茶叶都含有铝,而且茶叶含铝量又高于一般植物的含铝量。这是由于茶树的植物特性所决定的。倘若铝元素摄入量不足,就会影响茶树的生长和抗病能力,因此茶叶必须从土壤中摄入高量铝,且茶树叶愈老,其含铝量愈高。茶叶在我国有着悠久的历史、是人们日常生活中必不可少的饮料之一。茶叶含有咖啡碱、茶单宁、氨基酸、维生素等多种对人体有益的成分。但是茶叶高含量铝,也是人们不容忽视的问题
Aluminum is one of the most extensive metal elements in nature, accounting for about 7.45% of the crustal mass. Clay, feldspar, mica and many minerals are widely present. The planted vegetables, grains and tea contain aluminum and the aluminum content of tea Higher than the average plant aluminum content. This is due to the plant characteristics of the tea tree. If the intake of aluminum is insufficient, it will affect the growth and disease resistance of tea trees, so tea must absorb high amounts of aluminum from the soil, and the older the tea leaves, the higher the aluminum content. Tea has a long history in our country and is one of the essential drinks in people’s daily life. Tea contains caffeine, tannin, amino acids, vitamins and other beneficial ingredients on the human body. However, high content of tea aluminum, but also people can not be ignored problem