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ORIGINAL ARTICLE
Year : 2011  |  Volume : 3  |  Issue : 4  |  Page : 256-259

Screening of radical scavenging activity and polyphenol content of Bulgarian plant species


Department of Applied Botany, Institute of Biodiversity and Ecosystem Research Bulgarian Academy of Sciences 23, Acad. G. Bonchev Str. 1113 Sofia, Bulgaria

Correspondence Address:
Milena Nikolova
Acad. G. Bonchev str., 23 1113 Sofia
Bulgaria
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0974-8490.89746

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Background: Discovery of new plant species with antioxidant properties is a priority of many research teams. Most of the species included in this study are unstudied for antioxidant properties, but they are taxonomically related to reference plants with well-documented antioxidant activity. Materials and Methods: Free radical scavenging activity of plant extracts was evaluated using a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. An aluminum chloride colorimetric method was used for flavonoid determination. The amount of phenolic compounds in the extracts was estimated by using the Folin-Ciocalteu reagent. Results: As a result of screening, it was found that the significant antioxidant properties possess several unstudied until now plant species (Veronica bellidioides L., V. kellereri Deg. et Urm, V. vindobonensis (M. Fisher) M. Fisher, V. beccabunga L., V. rhodopaea L., V. austriaca (Velen.) Degen., Clinopodium vulgare L., Stachys recta L., Clematis vitalba L., and Xeranthemum annum L.). The antioxidant potential of the new species is comparable to that of reference medicinal plants. Conclusions: The existing data presented here provide new information for antioxidant potential of plant species that have not been traditionally used as medicinal plants.


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