In vitro analyses of antioxidant activity of extracts of five selected plants from Niğde, Turkey

Cihan Dusgun, Mehmet Fuat-Gulhan, Merve Duruyurek, Zeliha Selamoglu, Mehmet Erman-Erdemli

Agrimonia eupatoria, Lepidium sativum, Eruca vesicaria, Cichorium inthybus, Taraxacum officinale are commonly consumed and naturally grown in Turkey, especially in Nigde region. The aim of our study was to inves­tigate the antioxidant properties of five plant extracts by 1,1- diphenyl-2-picrylhydrazyl (DPPH) radical scavenging method, cupric reducing antiox­idant capacity (CUPRAC) and reducing power assay in vitro. Agrimonia eupatoria showed the highest antioxidant activity compared to other samples using DPPH and CUPRAC assays. Cichorium inthybus showed good an­tioxidant activity in DPPH assay. Eruca vesicaria showed good antioxidant activity measured by CUPRAC assay and reducing power assay. Lepidium sativum showed good radical scavenging activity only when reducing power assay was used.