DETERMINATION OF ONE-ELECTRON REDUCTION POTENTIALS OF TEA POLYPHENOL COMPONENTS USING PULSE RADIOLYSIS TECHNIQUE<sup>1</sup>

Jiang Yue; Lin Weizhen; Yao Side; Lin Nianyun

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DETERMINATION OF ONE-ELECTRON REDUCTION POTENTIALS OF TEA POLYPHENOL COMPONENTS USING PULSE RADIOLYSIS TECHNIQUE¹

更新时间：2023-04-18

- DETERMINATION OF ONE-ELECTRON REDUCTION POTENTIALS OF TEA POLYPHENOL COMPONENTS USING PULSE RADIOLYSIS TECHNIQUE¹
- Journal of Radiation Research and Radiation Processing Vol. 16, Issue 2, Pages: 70-74(1998)
- 作者机构：
  
  1.中国科学院上海原子核研究所辐射化学开放研究实验室　上海　201800
- 作者简介：
- 基金信息：
  
  THe project was supported by The National Science Foundation of China(39130050)
- DOI：
  CLC：
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Jiang Yue, Lin Weizhen, Yao Side, et al. DETERMINATION OF ONE-ELECTRON REDUCTION POTENTIALS OF TEA POLYPHENOL COMPONENTS USING PULSE RADIOLYSIS TECHNIQUE¹. [J]. Journal of Radiation Research and Radiation Processing 16(2):70-74(1998)
DOI：

Jiang Yue, Lin Weizhen, Yao Side, et al. DETERMINATION OF ONE-ELECTRON REDUCTION POTENTIALS OF TEA POLYPHENOL COMPONENTS USING PULSE RADIOLYSIS TECHNIQUE¹. [J]. Journal of Radiation Research and Radiation Processing 16(2):70-74(1998) DOI：

摘要

采用脉冲电子辐解瞬态吸收光谱装置，以杜醌（DQ）做参比物，在pH=7的磷酸缓冲溶液中测定茶多酚4个组分：表没食子儿茶素没食子酸酯（EGCG）、没食子儿茶素没食子酸酯（ECG）、表没食子儿茶素（EGC）和没食子儿茶素（EC）的单电子还原电位值,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42489882&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42489899&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42489898&type=,分别为-321mV、-326mV、-331mV和330mV，均比生物靶分子胸腺嘧啶与胞嘧啶的单电子还原电位（胸腺嘧啶为-1100mV,胞嘧啶为-1090mV）高，表明茶多酚4个组分的亲电性能均强于DNA碱基中亲电子性能最强的嘧啶碱基,并可作为评价亲电性化合物的辐射保护与敏化作用的指标之一。

Abstract

One-electron reduction potential (,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42489914&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42489917&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42489915&type=,) is one of the important parameters of electrophilic radioprotectors. In this work, one-electron reduction potentials of tea polyphenol components including EGCG, ECG, EGC and EC in aqueous solution at pH7 were determined to be -321 mV, -326 mV, -331 mV and -330 mV, respectively, using pulse radiolysis techniques. 2,6-dimethylbenzoquinone (DQ) was used as a reference compound.

关键词

脉冲辐解辐射保护剂单电子还原电位茶多酚

Keywords

Pulse radiolysisElectron affinityRadioprotectorOne-electron reduction potentialTea polyphenol components

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DETERMINATION OF ONE-ELECTRON REDUCTION POTENTIALS OF TEA POLYPHENOL COMPONENTS USING PULSE RADIOLYSIS TECHNIQUE1

DOI：

摘要

Abstract

关键词

Keywords

references

DETERMINATION OF ONE-ELECTRON REDUCTION POTENTIALS OF TEA POLYPHENOL COMPONENTS USING PULSE RADIOLYSIS TECHNIQUE¹