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Citation: Wang Chao-Cun, Ha Cheng-Yong, Yao Si-De. One-electron Reduction Potentials of Tea Polyphenolic Compounds[J]. Acta Physico-Chimica Sinica, ;1998, 14(11): 1020-1024. doi: 10.3866/PKU.WHXB19981111 shu

One-electron Reduction Potentials of Tea Polyphenolic Compounds

1.
Guangzhou Institute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650

Received Date: 4 January 1998
Available Online: 15 November 1998

One-electron reduction potentials could be use as the critical-criteria of charge transfer protect and sensitization. The One-electron reduction potentials of four Tea Polyphenol derivatives using duroquinone as the reference compound have been measured with the technique of pulse radiolysis, the one-electron reduction potentials of EGCG, GCG, GC, C are-316, -325, -328,-326mV, respectively. Acccording to the criteria of charge transfer of protection and sensitization, compared with one-electron reduction potential of thymine (-1100mV), EGCG, GCG, GC and C can be used to protect efficiently the target molecule thymine from the damage induced by electron addition.
- One-elecutron reduction potential,
- Electron affinity,
- Radiation protection agent,
- Pulse radiolysis
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