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    Article

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

    Milena Nikolova1★★ Corresponding author

    1. 1Department of Applied Botany, Institute of Biodiversity and Ecosystem Research Bulgarian Academy of Sciences 23, Acad. G. Bonchev Str. 1113 Sofia, Bulgaria

    CORRESPONDENCE

    Milena Nikolova

    *Address for correspondence: Dr. Milena Nikolova, Acad. G. Bonchev str., 23 1113 Sofia, Bulgaria.

    milena_n@bio.bas.bg

    Revised: 24-05-2011.

    Volume 3, Issue 4 · pp. 256–259 · PUBLISHED January 2011 · DOI: 10.4103/0974-8490.89746

    View on Pharmacogn. Res. original site ↗

    ABSTRACT

    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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      Nikolova, M. (2011). Screening of radical scavenging activity and polyphenol content of Bulgarian plant species. Pharmacognosy Research, 3(4), 256–259. https://doi.org/10.4103/0974-8490.89746