Abstract
Free radical scavenging activity of the seeds of some edible fruits from Turkey, namely Citrus limon (L.) Burm. (lemon), Prunus armeniaca L. (wild apricot), P. laurocerasus L. (cherry laurel), P. cerasus L. (sour cherry), Citrullus vulgaris Schrader (watermelon), and Cucumis melo L. (melon), has been investigated by using stable free radical 1,1-diphenyl-2-picrylhydrazyl (DPPH.) and superoxide (O 2 -) generated by xanthine/xanthine oxidase (XOD) systems. DPPH. scavenger capacity of the extracts of the aforementioned edible fruit seeds was compared with the known antioxidative substances such as tert -butyl-4-hydroxytoluene (BHT), vitamin C, quercetin and gallic acid. Radical scavenging capacity of the extracts was compared with that of gallic acid.