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Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (7): 1431.

• Letters • Previous Articles     Next Articles

Studies on Intermolecular Synergistic Antioxidant Activity in Glyceride Tri-ferulate

YAO Tong-Wei1, DU Li-Bo2, YANG Yi1, XU Yuan-Chao1, JIA Hong-Ying2, LIU Yang2*   

  1. 1. School of Science, Beijing University of Chemical Technology, Beijing 100029, China;
    2. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2009-03-20 Online:2009-07-10 Published:2009-07-10
  • Contact: LIU Yang. E-mail: yliu@iccas.ac.cn
  • Supported by:

    国家“八六三”计划(批准号: 2007AA10Z352)资助.

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Abstract:

A glyceride containing three ferulic groups was first synthesized in order to investigate intermolecular synergistic antioxidant activity. The antioxidant activity was evaluated via a radical-scavenging reaction of DPPH˙ radical. Although the scavenging capacities of both antioxidants, ferulic acid and glyceride tri-ferulate, were roughly equal, the apparent activation energy(Ea) of 19.50 kJ/mol for glyceride tri-ferulate is obviously lower than that of 28.80 kJ/mol for ferulic acid. The synergistic effect on Ea was further explained by a parallel π-π-stacking interaction.

Key words: Free radical; Antioxidant; Ferulic acid; Activation energy; Synergistic effect

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