FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (5): 112-115.
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WANG Hui-Ying, SUN Tao, ZHOU Dong-Xiang, MAO Fang
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Abstract: The Maillard reaction products(MRPs) were prepared using L-lysine and DMaillard reaction.The pH value and absorbance of the Maillard reaction products(MRPs) were determined.In this research,the antioxidative activities of MRPs,including iron-chelation activity,scavenging effect on superoxide anion radical and DPPH· radical,and reducing power were studied.The results showed that browning and acidity increased with the heating time;the wavelength of maximal absorbance was about 460 nm;While reaching the same browing degree,namely absorbance 2.2,their reaction speeds were shown as follows:1:2>1:1>2:1.Three kinds of MRPs with different proportions of amido and carbonyl exhibited good iron-chelation activities and scavenging activities against superoxide anion radical and DPPH· radical,but they almost did not have reducing powers.
Key words: Maillard reaction; iron-chelation; superoxide anion; 1,1-diphenyl-2-picrylhydrazyl(DPPH·, ); reduc-ing power; antioxidant activity;
WANG Hui-Ying, SUN Tao, ZHOU Dong-Xiang, MAO Fang. Study on Model Maillard Reaction of L-lysine and D-ribose and Antioxidant Activity of Its Products[J]. FOOD SCIENCE, 2008, 29(5): 112-115.
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