Evaluation of anthelmintic antimicrobial and antioxidant activity of Chenopodium album.

The objective of this study was to evaluate the anthelmintic, antimicrobial and antioxidant activities of Chenopodium album against gastrointestinal nematodes of sheep and some pathogenic microbes. A worm motility inhibition assay was used for in vitro study, and a faecal egg count reduction assay was used for an in vivo study. Various concentrations ranging from 100 to 500 µg/ml of the extract were subjected to antimicrobial screening by disc diffusion method against four selected bacterial (Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas multocida and Escherichia coli) and two fungal (Aspergillus flavus and Candida albicans) strains in order to estimate the medicinal potential of the herb. DPPH (1,1-diphenyl-2-picrylhydrazyl), riboflavin photo-oxidation, deoxyribose, lipid peroxidation assays were used for antioxidant activity. The extracts exhibited dose- and time-dependent anthelmintic effects on the Haemonchus contortus as compared to levamisole. The extract showed maximum inhibitory effect against S. aureus (28 ± 0.14 mm), while as mild inhibitory effect was observed against E. coli among the selected microbial strains. The effect produced by the different extract concentrations was comparable with the standard antibacterial agent streptomycin sulphate and antifungal agent nystatin, which were used as effective positive control in the study. The antioxidant activity showed that the extracts exhibited scavenging effect in concentration-dependent manner on superoxide anion radicals and hydroxyl radicals leading to the conclusion that the plant has broad spectrum anthelmintic, antimicrobial and antioxidant activities and could be a potential alternative for treating various diseases.