There were great differences among the free radical scavenging activities of different extracts of plant materials.
Regarding plant effect chamomile had the highest ARP of 455 followed by fennel 385. Concerning solvents, regardless of plants, methanol had the highest ARP followed by diethyl, ethanol and hexane in a descending order being 455, 385, 256 and 244 for chamomile and 323, 278, 217 and 213 for fennel, respectively.