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

Bozan B., Kosar M., Tunalier Z., Ozturk N., Baser K.

ACTA ALIMENTARIA, vol.32, no.1, pp.53-61, 2003 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 1
  • Publication Date: 2003
  • Doi Number: 10.1556/aalim.32.2003.1.7
  • Journal Name: ACTA ALIMENTARIA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.53-61
  • Keywords: antioxidant activity, Cinnamomum cassia, Rhus coriaria
  • Anadolu University Affiliated: No

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*, higher than those of BHT and BHA; however, their antioxidant activity on the linoleic acid peroxidation was less than those of BHA and BHT.