Vitro assessment of antioxidant and antibacterial activities of Salacia species - A comparative study

Abstract

Objective: The present work is to evaluate the antioxidant activity of hydroalcoholic extracts of Salacia oblonga, Salacia reticulata and Salacia roxburghii using different in vitro models e.g. radical scavenging activity using 2,2 diphenyl-1-picrylhydrazyl (DPPH) radical assay, hydroxyl radical scavenging activity and Ferricthiocyante assay (FTC) and antibacterial activity against Eschericeae coli, Staphylococcus aureus, Bacillus subtilis and Pseudomonas auruginosa and Klebsiella pneumonia. Method: Different concentrations of hydroalcoholic speices of three plants were prepared and tested for their antioxidant activity and antibacterial activity was seen by disc diffusion method. Results: It was seen that Salacia reticulata showed better antioxidant effect than the other two species and Salacia oblonga and Salacia reticulata showed better antibacterial activity. Conclusion: The study concludes that the hydroalcoholic extract of three Salacia species have antioxidant activity and Salacia oblonga and Salacia reticulate have antibacterial activity against the tested microorganisms.