This study was carried out to assess the antimicrobial activities of Sphenocentrum jollyanum and Mangifera indica extract on Salmonella typhi. The antimicrobial activities of these plant extract <50% ethanol was tested against Salmonella typhi mostly belongs to pathogenic bacteria, by agar well diffusion method. The crude extracts showed a broad extract spectrum of an antibacterial activity inh...

Background and objectives: Today, due to the increasing antibiotic resistance of bacteria, the use of medicinal plants as a suitable alternative to antibiotics has increased significantly; therefore, in this study, the antibacterial effects of methanolic extracts of Staphylococcus aureus, Bacillus cereus, Pseudomonas aeruginosa and Escherichia coli were evaluated.   Methods: In this laborator...

Korgenski and Daly recommend charcoal horse blood agar (Regan-Lowe agar) for the detection of erythromycin resistance in Bordetella pertussis by agar dilution, Etest methodology, or agar diffusion. MICs for most isolates were #0.06 to 0.12 mg/ml by agar dilution and the Etest, while the MIC for the only resistant strain was 16 to 64 mg/ml (4). Charcoal agar may be suitable for discrimination be...

Antibiotic susceptibility testing of 70 pediatric Helicobacter pylori isolates was performed by using screening agar and disk diffusion methods. Resistance to metronidazole and tinidazole was 72 to 79% and 71 to 81% by modified disk diffusion and 77% and 78% by screening agar, respectively. Susceptibilities to amoxicillin, ampicillin, clarithromycin, tetracycline, erythromycin, and ciprofloxaci...

conclusions: the results showed that silver nanoparticles have an antimicrobial effect against intramacrophage b. abortus 544. results: the well diffusion agar study showed that silver nanoparticles have an antimicrobial effect on b. abortus 544. the mic and mbc of silver nanoparticles against b. abortus 544 were; 6 ppm and 8 ppm, respectively. the silver nanoparticles showed antibacterial effe...