which was generated in Fenton system. The same concentration of this extract scavenged
92% DPPH and 95% peroxyl radical during lipid peroxidation. Antioxidant properties were in correlation with the contents of total
phenolic compounds (14.49–57.47 mg/g) and flavonoids (5.26–18.62 mg/g) in extracts. The formation of o-semiquinone radicals
from rutin and caffeic acid in lipid peroxidation system proved the mechanism (hydrogen donating and/or one-electron reduction) of
free-radical scavenging activity. The ESR data demonstrate that methanolic and water extracts of CM possess similar free radicals
scavenging and antioxidative activity as synthetic antioxidants BHA.
2004 Elsevier Ltd. All rights reserved.