Evaluation of Antimicrobial activity of Leaves extracts of Bauhinia rufescens Lam. (Fabaceae) on Salmonella Spp. isolated from Chicken intestine

This study has been conducted to evaluate the antimicrobial activity of water extracts from leaves of Bauhinia rufescens on Salmonella species. In vitro antimicrobial test was performed by disc diffusion method on muller Hinton agar. Serial dilution was followed and concentrations corresponding to (0.2-0.4-2-4-6-8-10mg/ml) were prepared and then diluted to (10- 102 -103 ). Minimum inhibitory concentration (MIC) and Minimum Bactericidal concentration (MBC) test were measured. The values of MIC for different times of incubation (24hrs, 48hrs, and 72hrs) were registered as : 0.1, 0.1, 2 respectively. The results of the study were subjected to statistical analysis and significances were found between concentration of Bauhinia extract . The results revealed that all concentrations used were effective for the inhibition of Salmonella sp. growth.