Gastrointestinal absorption of aluminum from teas in rats
Gastrointestinal absorption of aluminum from teas in rats
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DOI：
10.1111/j.1365-2621.2002.tb08775.x
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发表时间：
2002-09-01
影响因子：
3.9
通讯作者：
Suwa, Y
中科院分区：
文献类型：
--
作者：
Fujii, W;Kusumoto, A;Suwa, Y
使用 Wistar 大鼠研究了红茶、绿茶和乌龙茶中所含铝 (Al) 的胃肠道吸收与柠檬酸铝的比较。口服柠檬酸铝后，大鼠血清铝水平较基础水平增加7.9倍。相比之下，服用等量铝的茶仅略微增加了血清铝水平（30％至58％）。 3种茶汤中，绿茶组血清铝水平高于红茶和乌龙茶组，但差异不显着。这些结果表明，茶汤中铝的吸收率远低于游离态铝的吸收率。还表明红茶、绿茶或乌龙茶在胃肠道中铝的吸收率没有显着差异。
Gastrointestinal absorption of aluminum (Al) contained in black tea, green tea, and oolong tea compared with that of Al citrate was investigated using Wistar rats. The serum Al level in the rats administered orally with Al citrate increased by 7.9 times that of the basal level. In contrast, the administration of teas, at the equivalent dose of Al, increased only slightly the serum Al level (30 to 58%). Among 3 types of tea infusions, the serum Al level in the green tea group was relatively high compared to those in the black tea and oolong tea groups, although the difference was not significant. These results showed that the absorption rates of Al from ingestion of tea infusions were much lower than that of free form Al. It was also suggested that there were no marked differences in Al absorption rates from black tea, green tea, or oolong tea in the gastrointestinal tract.