Kinetic Study on the Radical-Scavenging Activity of Natural Antioxidants Having 4-Propenylphenol Structures

Natural antioxidants having phenolic structures, such as vitamin E, catechin in green tea, and resveratrol in red wine, are known to show efficient scavenging activities against the reactive oxygen and nitrogen radicals. There are numerous reports, which show the strong antioxidative activities of these phenolic antioxidants in vivo and in vitro. In this study, we report the kinetic study on the radical-scavenging activity of 4-propenylphenol derivatives, such as caffeic acid (CA), artepillin C (AC), reduced artepillin C (ACOH), rosmarinic acid (RA), curcumin (CU), and so on.International Society for Free Radical Research 13th Biennial Congres