Antioxidant and free radical scavenging activities of rhus coriaria and Cinnamomum cassia extracts

Bozan, B. and Kosar, M. and Tunalier, Z. and Ozturk, N. and Baser, K. H. C. (2003) Antioxidant and free radical scavenging activities of rhus coriaria and Cinnamomum cassia extracts. Acta Alimentaria, 32 (1). pp. 53-61. ISSN 0139-3006

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Abstract

Antioxidant and free radical scavenging activities of the extracts of sumac (Rhus coriaria) fruits and cassia (Cinnamomum cassia) cortex were studied. Plant samples were extracted with methanol:water (80:20) and an aliquot of each extract was fractionated using n-hexane and ethyl acetate. Antioxidant activities of n-hexane, ethyl acetate and water fractions were measured using Fe+2 induced linoleic acid-TBA-peroxidation reaction and the Rancimat methods. Free radical scavenging activities of the fractions were determined on 2,2-diphenyl-1-picrylhydrazyl radical (DPPH). Results were compared with those for butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT). The ethyl acetate fraction of plant materials exhibited a marked antiradical activity on DPPH.

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