Antioxidant Properties and Phenolic Composition of Sideritis Species
CHEMISTRY OF NATURAL COMPOUNDS, vol.40, pp.206-210, 2004 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 40
- Publication Date: 2004
- Doi Number: 10.1016/j.cmpd.2004.03.206
- Journal Name: CHEMISTRY OF NATURAL COMPOUNDS
- Journal Indexes: Scopus, Science Citation Index Expanded (SCI-EXPANDED)
- Page Numbers: pp.206-210
- Anadolu University Affiliated: Yes
Abstract
The antioxidant properties and phenolic composition of 27 Sideritis species were studied. Plant samples were extracted with petroleum ether using a Soxhlet apparatus. The defatted plant materials were extracted with 70% methanol. Antioxidant activities of the extracts were measured using Fe+2 induced linoleic acid peroxidation, as indicated by thiobarbituric acid reactive substance (TBARS) production. Free radical scavenging activities were determined based on 1,1-diphenyl-2-picrylhydrazyl radical (DPPH). Results were compared with standard BHT. Total phenol concentration of the extracts was estimated with Folin-Ciocalteu reagent using gallic acid as standard, and phenolic components were quantified by HPLC-DAD.