Antioxidant properties and phenolic composition of Sideritis species
CHEMISTRY OF NATURAL COMPOUNDS, cilt.40, sa.3, ss.206-210, 2004 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 40 Sayı: 3
- Basım Tarihi: 2004
- Doi Numarası: 10.1023/b:conc.0000039124.83109.ac
- Dergi Adı: CHEMISTRY OF NATURAL COMPOUNDS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.206-210
- Anahtar Kelimeler: Sideritis, antioxidant, HPLC, free radical scavenging activity, lipid peroxidation, composition, PERFORMANCE, DITERPENES, EXTRACTS
- Anadolu Üniversitesi Adresli: Evet
Özet
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. Totalphenol concentration of the extracts was estimated with Folin-Ciocalteu reagent using gallic acid as standard, and phenolic components were quantified by HPLC-DAD.