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19 .   Antioxidant Activity and Phenolic Contents of 30 Selected Medicinal Plants

Authors: Ahmet Duran, Nurhan Uslu, Bekir Doğan, Mehmet Musa Özcan, Mustafa Çelik

Volume 21, Issue 2;
Pages: 136-141; 2015
ISSN: 2069-0053 (print) (former ISSN: 1453-1399), Agroprint;
ISSN (online): 2068-9551



Abstract:

Plant aerial parts were tested for their free radical scavenging action by their interaction with 1,1-diphenyl-2-picrylhydrazyl (DPPH) and total phenol. The results showed that the total phenolics varied significantly and ranged from 0.411 mg GAE/100 ml to 3.337 mg GAE/100 ml. The highest phenolic contents was determined in Aethionenmu devmonii. Antioxidant activity of plant extracts by the DPPH scavenger method (inhibition %) were found between 45.074% (Silene lephackola) to 81.527% (C.babylonica L.). It was concluded that the methanolic extracts of these widely consumed spices in Turkey are good sources of phenolic materials and have high antioxidative and free radical scavenging activities.

Keywords: medicinal plant, extract, antioxidant activity, total phenol, DPPH

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