Z. Kalitchin, Margarita I. Boneva, T. Milkova
Nov 1, 1997
Citations
0
Influential Citations
5
Citations
Journal
Journal of Photochemistry and Photobiology B-biology
Abstract
Abstract Four cholesteryl esters of cinnamic acid derivatives, cholesteryl 2″-hydroxycinnamate, cholesteryl 3″-hydroxycinnamate, cholesteryl 4″-hydroxy-cinnamate and cholesteryl 3″,4″-dihydroxycinnamate, as well as cholestanyl 2″-hydroxycinnamate, which can be used as potential inhibitors of lipids oxidation, have been investigated for their radical scavenging efficiency by a chemiluminescence method. The rate constants of inhibition( k 1nH ) were determined in a model reaction of an initiated oxidation of tetraline at 353 K. The chemiluminescent results show that the four cholesteryl esters are efficient radical acceptors, and that among them, cholesteryl 3″,4″-dihydroxycinnamate is a particularly efficient radical scavenger with an inhibition rate constant of 1.8 × 10 5 dm 3 mol 1 s −1 .