Food and Fermentation Industries >

2011 , Vol. 37 >Issue 09: 166 - 170

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.2011.09.038

Food and Fermentation Industries

DPPH Scavenging Activity and Total Antioxidant Activity of Methylated EGCG Derivatives

  • Lv Hai-peng ,
  • Lin Zhi ,
  • Tan Jun-feng ,
  • Guo Li ,
  • Zhang Yue ,
  • Fei Xu-yuan
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Online published: 2011-09-25

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Abstract

Three methylated EGCG derivatives were purified by preparative chromatography,and their structures were identified by LC/MS and NMR as the following: 4′,4″-di-Me-EGCG、4′,3″,4″-tri-Me-EGCG and 4′,3″,4″,5″-tetra-Me-EGCG.DPPH scavenging assay and the evaluation of total antioxidant activity experiment showed that the methylated EGCG derivatives had much lower antioxidant capability than 98% EGCG,only to 68.17% and 6.84% of 98% EGCG in average,respectively.

Key words： EGCG; methylate derivatives; total antioxidant activity

Cite this article

Lv Hai-peng , Lin Zhi , Tan Jun-feng , Guo Li , Zhang Yue , Fei Xu-yuan . DPPH Scavenging Activity and Total Antioxidant Activity of Methylated EGCG Derivatives[J]. Food and Fermentation Industries, 2011 , 37(09) : 166 -170 . DOI: 10.13995/j.cnki.11-1802/ts.2011.09.038

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