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Tunneling effect in vitamin E recycling by green tea

机译：绿茶中维生素E回收的隧道效应

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Recycling reactions of natural vitamin E (α-tocopherol) by catechins contained in green tea were studied with a double-mixing stopped-flow spectrophotometer. The second-order reaction rate constants of the catechins and deuterated analogues were determined by using a simulation, the activation energies were obtained from the temperature dependences, and the deuterium kinetic-isotope effects were examined. From these results, a tunneling effect was found to play an important role in the vitamin E recycling reactions by the catechins, and the structure–activity relationship was clarified. Furthermore, conditions under which the tunneling effect manifests itself in various vitamin E recycling reactions in biological systems and foods were suggested. A new α-tocopherol-recycling capacity assay-method was also proposed, and named an ATREC assay-method after the acronym.
机译：用双混液停止流动分光光度计研究绿茶中含有的儿茶素的自然维生素E（α-生育酚）的回收反应。通过使用模拟确定儿茶素和氘代样品的二阶反应速率常数，从温度依赖性获得激活能量，并检查氘动力学 - 同位素效应。从这些结果来看，发现隧道效应在受儿茶素的维生素E回收反应中起重要作用，并且澄清了结构 - 活性关系。此外，提出了隧道效应在各种维生素E中表现出生物系统和食物中的各种维生素E的循环反应的条件。还提出了一种新的α-生育酚回收能力测定方法，并在首字母缩略词后命名为ATREC测定法。

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