In-vitro Antioxidant Activity and Antimicrobial Activity of Hydroalcoholic Extracts of Vernonia cinerea
Abstract
The aim of present study was to estimate the in vitro antioxidant potential and antimicrobial activity of hydroalcoholic extract of Vernonia cinerea. Antioxidant activity was assessed by using 2, 2- diphenyl-1-picryl-hydrazyl (DPPH) assay using ascorbic acid as standard antioxidant. The extract was found to scavenge effectively the free radicals. The total flavonoid contents were determined by established methods and were found to be 0.547 mg/100mg in quercitin equivalents. Antimicrobial activity was performed against 2 stains of human pathogenic bacteria by well diffusion method. Hydroalcoholic extract of Vernonia cinerea showed good antimicrobial activity against gram positive bacteria. The antioxidant activities may be attributed to the presence of significant amounts of flavonoid compounds. Results indicated that hydroalcoholic extract of Vernonia cinerea possess significant antioxidant effect in dose dependent manner, followed by the hydroalcoholic extract of Vernonia cinerea possessed good antimicrobial activity.
Keywords: Antioxidant activity, Radical scavenging activity, Free radicals, Antimicrobial activity.
DOI
https://doi.org/10.22270/jddt.v9i1.2226References
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