EFFECTIVE INHIBITION OF HYDROXYL RADICALS BY HYDROXYLATED BIPHENYL COMPOUNDS

被引：39

作者：

TAIRA, J ^{[1
]}

IKEMOTO, T ^{[1
]}

MIMURA, K ^{[1
]}

HAGI, A ^{[1
]}

MURAKAMI, A ^{[1
]}

MAKINO, K ^{[1
]}

机构：

[1] KYOTO INST TECHNOL,DEPT POLYMER SCI & ENGN,SAKYO KU,KYOTO 606,JAPAN

来源：

FREE RADICAL RESEARCH COMMUNICATIONS | 1993年 / 19卷

关键词：

DMPO; BIPHENYL COMPOUNDS; RADICAL SCAVENGING; OH; HYDROXYL RADICAL; EPR;

D O I：

10.3109/10715769309056s71

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：

In aqueous media, approximate rate constants for the reactions between hydroxyl radicals (.OH) and biphenyl compounds such as dehydrodieugenol, magnolol, honokiol, dehydrodidihydroeugenol, dehydrodivanillyl alcohol, and dehydrodicreosol were estimated by competition reactions for .OH between these biphenyls and 5,5-dimethyl-1-pyrroline-N-oxide(DMPO). By measuring the decrease in the height of the EPR signals of the .OH spin adduct, rate constants in the order of 10(9) to 10(10) M were measured.

引用

页码：S71 / S77

页数：7

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