| 阿魏酸丙三酯的分子内协同抗氧化作用研究 |
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| 引用本文： | 姚同伟,杜立波,杨屹,徐元超,贾宏瑛,刘扬. 阿魏酸丙三酯的分子内协同抗氧化作用研究[J]. 高等学校化学学报, 2009, 30(7): 1431 |
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| 作者姓名： | 姚同伟 杜立波 杨屹 徐元超 贾宏瑛 刘扬 |
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| 作者单位： | 北京化工大学理学院,北京,100029;中国科学院化学研究所分子动态与稳态结构国家重点实验室,北京,100190 |
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| 基金项目： | 国家"八六三"计划 |
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| 摘 要： | 设计并合成了一个包含3个阿魏酸抗氧化功能基团的新型抗氧化剂分子--阿魏酸丙三酯, 并以阿魏酸单体分子作对照从自由基清除效果与动力学反应活化能两个角度对比分析了阿魏酸丙三酯与DPPH·反应间的协同抗氧化作用.
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| 关 键 词： | 自由基 抗氧化剂 阿魏酸 活化能 协同效应 |
| 收稿时间： | 2009-03-20 |
Studies on Intermolecular Synergistic Antioxidant Activity in Glyceride Tri-ferulate |
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| YAO Tong-Wei,DU Li-Bo,YANG Yi,XU Yuan-Chao,JIA Hong-Ying,LIU Yang. Studies on Intermolecular Synergistic Antioxidant Activity in Glyceride Tri-ferulate[J]. Chemical Research In Chinese Universities, 2009, 30(7): 1431 |
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| Authors: | YAO Tong-Wei DU Li-Bo YANG Yi XU Yuan-Chao JIA Hong-Ying LIU Yang |
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| Affiliation: | 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 |
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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. |
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| Keywords: | Free radical Antioxidant Ferulic acid Activation energy Synergistic effect |
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