EFFECTIVE INHIBITION OF HYDROXYL RADICALS BY HYDROXYLATED BIPHENYL COMPOUNDS

Authors
TAIRA J IKEMOTO T MIMURA K HAGI A MURAKAMI A MAKINO K
Citation
J. Taira et al., EFFECTIVE INHIBITION OF HYDROXYL RADICALS BY HYDROXYLATED BIPHENYL COMPOUNDS, Free radical research communications, 19, 1993, pp. 190000071-190000077
Citations number
19
Categorie Soggetti
Biology
Journal title
Free radical research communications → ACNP
ISSN journal
87550199
Volume
19
Year of publication
1993
Supplement
1
Pages
190000071 - 190000077
Database
ISI
SICI code
8755-0199(1993)19:<190000071:EIOHRB>2.0.ZU;2-M
Abstract
In aqueous media, approximate rate constants for the reactions between hydroxyl radicals (.OH) and biphenyl compounds such as dehydrodieugen ol, magnolol, honokiol, dehydrodidihydroeugenol, dehydrodivanillyl alc ohol, 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.