aquatics are a source of bioactive compounds that these compounds have different properties such as antimicrobial activity. in this study, antibacterial activity of methanol, chloroform and hexane extracts from body wall, gonad and intestine of sea cucumber holothuria leucospilota was evaluated against bacillus subtilis, pseudomonas aeruginosa and staphylococcus aureus. bioactive compounds of b...

The purpose of this study was to investigate the antimicrobial effect of a Punica granatum Linn (pomegranate) phytotherapeutic gel and miconazole (Daktarin oral gel) against three standard streptococci strains (mutans ATCC 25175, sanguis ATCC 10577 and mitis ATCC 9811), S. mutans clinically isolated and Candida albicans either alone or in association. The effect of minimum inhibitory concentrat...

The objective of present investigation was to determine antimicrobial activity of Thymus vulgaris oil on some oral pathogens. Thymus vulgaris oil was prepared by hydrodistillation and tested against 30 clinical isolates of each of Streptococcus pyogenes, Streptococcus mutans, Candida albicans, Porphyromonas gingivalis, and Aggregatibacter actinomycetemcomitans, prepared from related oral infect...

Minimum lethal concentrations (MLC) and minimum inhibitory concentrations (MIC) were determined in vitro for 8 antibiotics against 9 isolates of Mycoplasma synoviae. Of the antibiotics tested, tylosin had the highest activity, followed closely by chlortetracycline, lincomycin, oxytetracycline, spectinomycin, and tetracycline. Neomycin and erythromycin were less effective. Two antibiotic combina...

Objective(s): This study aimed to investigate the effect of zinc oxide nanoparticles (ZnO-np) on biofilm formation and expression of the flu gene in uropathogenic Escherichia coli (UPEC) strains. Materials and Methods: Minimum inhibitory concentration (MIC) of ZnO-np was determined by agar dilution method. The effect of MIC and sub-MIC concentrations of ZnO-np on biofilm formation were determin...

This study evaluated the inhibitory activity of copaiba oil (Copaifera officinalis against the cariogenic microorganism, Streptococcus mutans. For such purpose, a minimum inhibition concentration test of copaiba oil against S. mutans was performed, using the serial dilution in broth technique, with a negative control, a positive control (0.12% chlorhexidine) and a 10% copaíba oil solution as a ...

objective(s) due to increasing emergence of drug-resistance in helicobacter pylori isolates, traditional plants are potentially valuable sources of novel anti-h. pylori agents. in this research, anti-h. pylori activity of the organic extracts of twenty native iranian plants was determined against ten clinical isolates of h. pylori. materials and methods disc diffusion was used to determine the ...

stevia rebaudiana bertoni, is an ancient perennial shrub of south america, with great potential as a crop for the production of high-power natural sweetener. due to its chemical composition and content of the phytochemical compounds, it is suitable as a raw material for the extraction and production of functional foods. diterpene glycosides component of low-calorie sweetener is approximately 30...

galbanic acid, a sesquiterpene coumarin from ferula szowitsiana , and conferol, another sesquiterpene coumarin from f. badrakema , were evaluated for their effects on the reversal of multi-drug resistance in clinical isolates of staphylococcus aureus and escherichia coli , respectively. neither galbanic acid (up to 1000 μg/ml) nor conferol (up to 400 μg/ml) by itself shows any antibacterial act...