Position: Home > Articles > Kinetic Studies of DPPH Radical Scavenging Activity of Antioxidative Peptides HDHPVC and HEKVC
FOOD SCIENCE
2014,35
(17)
109-113
抗氧化肽HDHPVC和HEKVC的反应动力学及抗氧化能力评价方法
作 者：
蒋海萍;廖丹葵;孙建华;童张法
单 位：
广西大学化学化工学院
关键词：
His-Asp-His-Pro-Val-Cys;His-Glu-Lys-Val-Cys;DPPH自由基;抗氧化;动力学
摘 要：
研究抗氧化肽His-Asp-His-Pro-Val-Cys(HDHPVC)、His-Glu-Lys-Val-Cys(HEKVC)和谷胱甘肽(glutathione,GSH)清除1,1-二苯基-2-三硝基苯肼(1,1-diphenyl-2-picrylhydrazyl,DPPH)自由基的反应动力学特性。3种抗氧化肽的二级反应动力学常数k2、抗氧化还原能力(antiradical power,ARP)及化学计量数等结果表明,其清除DPPH自由基能力的排列顺序为HEKVC
译 名：
Kinetic Studies of DPPH Radical Scavenging Activity of Antioxidative Peptides HDHPVC and HEKVC
作 者：
JIANG Hai-ping;LIAO Dan-kui;SUN Jian-hua;TONG Zhang-fa;School of Chemistry and Chemical Engineering, Guangxi University;
关键词：
His-Glu-Lys-Val-Cys;;His-Glu-Lys-Val-Cys;;DPPH free radical;;antioxidant;;kinetics
摘 要：
The kinetic behavior of two antioxidative peptides, His-Asp-His-Pro-Val-Cys(HDHPVC) and His-Glu-LysVal-Cys(HEKVC), as well as glutathione(GSH) for their DPPH radical scavenging activity was investigated. Three kinetic parameters of the two antioxidative peptides, including second-order rate constant(k2), antiradical power(ARP) and stoichiometry were calculated and compared with those of GSH. Results showed that the antioxidative capacity was sequenced as HEKVC
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