Searching for an absolute kinetic scale of antioxidant activity against lipid peroxidation

摘要

The inhibition properties of a number of antioxidants against peroxidation, started by a 2,2'-azobis[2-(2-imidazolin-2-yl) propane] radical initiator, of linoleic acid in sodium dodecyl sulfate micelles, have been determined in terms of oxygen consumption by a Clark electrode in an oxygen-tight cell. For the 31 antioxidants investigated at variable concentrations, the experimental results well fit the kinetic equation for competitive reactions.