Phenolic Contents and Antioxidant Properties of Echinops ritro L. and E. tournefortii Jaup. Et. Spach Extract

Authors : Çigdem AYDIN, Gülten TAŞDELEN ÖZCAN, Murat TURAN, Ramazan MAMMADOV

Pages : 74-81

Doi:10.21448/http-ijate-net-index-php-ijsm.243309

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Publication Date : 2016-07-01

Article Type : Research Paper

Abstract :Aim of the study was to evaluate antioxidant activity and total phenolic content of Echinops ritro L. and E. tournefortii insert ignore into journalissuearticles values(Asteraceae);. The dried leaves and seeds of E. ritro and E. tournefortii were extracted separately with ethanol, methanol, chloroform and dH2O. Total phenolic content was measured by Folin-Ciocalteu method. Antioxidant activities of the extracts were determined by two test systems namely, radical scavenging on DPPH and β-carotene bleaching methods. dH2O extracts has the highest phenolic content insert ignore into journalissuearticles values(92.24 GAE mg/100g);. The results were compared to those of BHT as synthetic antioxidant. dH2O extracts were found to be rich as a source of phenolics. According to the results of antioxidant activity, dH2O extracts exhibited higher antioxidant activity than all types of solvent. The strongest antioxidant properties were obtained by dH2O extract. Radical scavenging activities insert ignore into journalissuearticles values(%); were found to be in the following order: Chloroform
Keywords : Echinops ritro, E tournefortii, antioxidant activity, phenolic content