antimicrobial activity of different parts of croccus sativus l. (saffron) including stigma, stamen, leaves and colora, extracted by various solvents, were tested against different bacteria (microccucos luteus, staphylococcus epidermitis, staphylococcus aureus and e. coli) and fungi (candida albicans, aspergillus niger and cladospourium sp) by cup plate diffusion method. minimal inhibitory conce...

background bacterium-bacterium antagonistic interactions could be important in the ecology of marine bacteria. antimicrobial properties of microorganisms are exploited in various fields of human activities. objectives antagonism of heterotrophic bacteria from different marine environments of tropical and temperate zones was examined. materials and methods bacteria were isolated from biofilm sam...

essential oils and their components are becoming increasingly popular as naturally occurring antimicrobial agents. in this work the chemical composition and antimicrobial activity of ferula gumosa essential oils were determined. the essential oil components were identified by gc/ms analysis. the minimum inhibitory concentration (mic) of essential oil against five selected pathogenic microorgani...

the aim of this study was to evaluate the effect of walnut tree root (juglandaceae) on escherichia coli is resistant to various antibiotics. walnut tree root extract was obtained using a rotary device. 20 cases of e. coli was obtained from urinary tract infections zabul hospital and mic and mbc were determined using dilution in the wells. the results of the study showed that the concentrations ...

background and objectives : the aim of this study was to evaluate the chemical composition and antimicrobial activity of satureja hortensis and trachyspermum copticum essential oils against different kinds of microorganisms in vitro. material and methods : the antimicrobial activity was evaluated by micro broth dilution assay and analysis of essential oils chemical composition by gc and gc/ms a...

background & aim: in this study, is done during one-year research on blue–green and green algae for antimicrobial activity in mashhad suburb. aqueous, ether, and methanol extracts from 44 species blue – green algae and green algae were examined for antimicrobial properties against four bacteria (tow positive gram bacteria and tow negative gram bacteria) and tow fungous. material & meth...

background: essential oils of medicinal plants such as chamomile are very complex natural mixtures which can contain compounds at quite different concentrations and some of their components have antioxidant and antimicrobial activities in foodstuff. objective: the antioxidant and antimicrobial effects of chamomile essential oil in cake preparation were evaluated during 75 days of storage. metho...

different solvent extracts of a red algae, hypnea flagelliformis,and two brown algae, cystoseira myrica and sargassum boveanum, collected from the persian gulf coast were subjected to different bioassays including: 1,1-diphenyl-2-picrylhydrazyl (dpph) free radical scavenging assay, antibacterial and antifungal activity by thin layer chromatography (tlc)-bioautography, agar disc diffusion (add) ...

methanol 70% extract of bauhinia racemosa aerial parts was tested for antimicrobial activity against different bacterial and fungal strains and for antioxidant activity and also total content of polyphenols with phytochemical analysis of the extract was determined. the results have showed that the extract has a significant antimicrobial activity, it inhibited the growth of bacillus subtilis and...

actinomycetes are interesting as a main producer of secondary metabolites and industrial antibiotics from marine environments. a total of 44 strains of actinomycetes were isolated from caspian sea sediments at a depth of 5-10 m. preliminary screening was done using cross-streak method against 2 gram-positive and 4 gram-negative pathogen bacteria. the most potent strains mn2, mn3, mn38, mn39, mn...