| 茶水放置过程中铅、铜、铁元素浸出的动态变化 |
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| 引用本文： | 贾俊辉,沈生荣.茶水放置过程中铅、铜、铁元素浸出的动态变化[J].茶叶,2005,31(1):39-41. |
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| 作者姓名： | 贾俊辉 沈生荣 |
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| 作者单位： | 浙江大学茶学系,杭州,310029 |
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| 基金项目： | 浙江大学校科研和教改项目 |
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| 摘 要： | 对茶叶在冲泡放置24小时过程中铅、铜、铁元素浸出的动态变化研究，分析三种元素在茶水放置过程中含量的变化，探讨金属元素在茶叶冲泡过程中浸出规律及对茶水放置后安全性的影响。结果表明，三种金属元素的浸出含量不随时间显著变化，放置过程中不会造成茶汤中含量的明显增加。茶水隔夜放置不存在大量金属浸出的可能。
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| 关 键 词： | 茶水 金属元素 火焰原子吸收 动态变化 |
| 文章编号： | 0577-8921(2005)01-039-03 |
| 修稿时间： | 2003年5月22日 |
Dynamics of Pb, Cu and Fe Contents in Tea Infusion Released from Tea Leaf during Holding |
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| JIA Junhui,SHEN Shengrong.Dynamics of Pb, Cu and Fe Contents in Tea Infusion Released from Tea Leaf during Holding[J].Journal of Tea,2005,31(1):39-41. |
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| Authors: | JIA Junhui SHEN Shengrong |
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| Abstract: | The dynamics of Pb, Cu and Fe contents in tea infusion released to water from tea leaf were studied by analyzing the changes of their concentrations within 24h, and discussing the extracting dynamics during brewing and subsequently standing for 24h, and influence on food safety. The results showed that amount of the 3 elements extracted in the tea infusion was not markedly changed with extraction time. |
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| Keywords: | tea infusion metal elements FAAS dynamics |
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