Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
3454357 | Asian Pacific Journal of Tropical Disease | 2013 | 7 Pages |
ObjectiveTo elucidate the antimicrobial and antioxidant activities of Rumex dentatus L. (R. dentatus) along with its phytochemical analysis.MethodsAgar disk diffusion method for antimicrobial activity and DPPH, riboflavin photo-oxidation, deoxyribose and lipid peroxidation assay for antioxidant activity.ResultsThe antimicrobial and antioxidant activities of different concentrations of five R. dentatus extracts were tested against different clinical bacterial strains (Shigella flexneri, Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Salmonella typhimurium) and fungal strains (Aspergillus versicolor, Aspergillus flavus, Accremonium spp., Penicillium dimorphosporum, Candida albicans, Candida parapsilosis, and Candida kruesie). Among all extracts, the butanol extract showed strong antibacterial activity against Klebsiella pneumoniae (inhibition zone diameter of 20 mm) and aqueous extract showed no activity against any of the bacterial strains. While as in case of the fungal strains, the maximum antifungal activity was observed against Aspergillus flavus by aqueous extract. The antioxidant activity revealed that the extracts exhibited scavenging effect in concentration-dependent manner on superoxide anion radicals and hydroxyl radicals. The phytochemical tests carried out with the crude extracts of R. dentatus showed the presence of flavonoids, terpenoids, alkaloids, saponins, tannins, anthraquinones and cardiac glycosides in it. The total phenolic content of these extracts was estimated quantitatively from standard calibration curve of gallic acid and it varied from 145 μg/mg in butanol extract to 45 μg/mg in petroleum ether extract.ConclusionsIt can be concluded that the plant has got a broad spectrum antimicrobial and antioxidant activity and could be used as a potential alternative for treating various diseases.