Antioxidant Activities and Phenolic Compounds of Two Endemic Taxa of Labiatae Sideritis

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dc.contributor.authorTekeli, Yener
dc.date.accessioned2024-09-18T19:54:35Z
dc.date.available2024-09-18T19:54:35Z
dc.date.issued2012
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractSideritis species have very high antioxidant activity and and are used in a range of treatments by alternative medicine. This study examined the antioxidant activities and phenolic compositions of endemic 2 Sideritis species (Sideritis phrygia Bornm and ideritis bilgerana P.H. Davis), which were collected in the Konya region of Turkey. The oil content was extracted with petroleum ether using a soxhlet extractor. The defatted plant materials were extracted with methanol and then filtered and concentrated in vacuo at 45 degrees C. Finally, the extracts were lyophilized and stored in the dark at +4 degrees C until analyzed for antioxidant activity. Total phenol concentration of the extracts were estimated with Folin-Ciocalteu reagent using gallic acid as standard, free radical scavenging activities were determined based on DPPH(2,2-diphenyl-1-picrylhydrazyl) and ferric reducing antioxidant power (FRAP) was determined based on the method proposed by Oyaizu. Results were compared with standard BHT(Butylated hydroxytoluene) and BHA (Butylated hydroxyanisole The phenolic composition of the samples was determined using HPLC. The results indicated that S. phrygia and S. bilgerana showed significant antioxidant effect and 6 phenolic compounds used in standard phenolic compounds. S. phrygia showed higher antioxidant capacity than S. bilgerana.en_US
dc.identifier.endpage469en_US
dc.identifier.issn0034-7752
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-84862535122en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage465en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12483/7813
dc.identifier.volume63en_US
dc.identifier.wosWOS:000304494200005en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherChiminform Data S Aen_US
dc.relation.ispartofRevista De Chimieen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAntioxidant activityen_US
dc.subjectDPPHen_US
dc.subjectreducing poweren_US
dc.subjectphenolic compounden_US
dc.titleAntioxidant Activities and Phenolic Compounds of Two Endemic Taxa of Labiatae Sideritisen_US
dc.typeArticleen_US

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