Changes in chemical properties of melanoidin by oxidation and reduction

被引:12
作者
Homma, S [1 ]
Terasawa, N [1 ]
Kubo, T [1 ]
YoneyamaIshii, N [1 ]
Aida, K [1 ]
Fujimaki, M [1 ]
机构
[1] KANAZAWA UNIV, FAC EDUC, KANAZAWA, ISHIKAWA 92011, JAPAN
关键词
melanoidin; oxidation of melanoidin; reduction of melanoidin; electrofocusing of melanoidin; reductone;
D O I
10.1271/bbb.61.533
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Nondialyzable model melanoidin prepared from glucose and glycine was oxidized with potassium ferricyanide or reduced with sodium borohydride. Compared with intact melanoidin, the oxidation reduced the pi value and increased the chelating activity, while reduction had the completely opposite effect, Both reactions on melanoidin increased the molecular weight and reduced the E(500nm)(1%) value.
引用
收藏
页码:533 / 535
页数:3
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