Unpasteurized fruit juice has been implicated in outbreaks of Escherichia coli O157:H7 (E. coli O157:H7). Meanwhile, certain fruit, such as pomegranate, contains antimicrobial components. The objective of this study was to investigate the survival and growth characteristics of E. coli O157:H7 on pomegranate juice in laboratory medium and in pomegranate-carrot and pomegranate-apple blend juices ...

The purpose of this work was to verify in vitro adherence of E. corrodens and S. oralis to the surface of tongue piercings made of surgical steel, titanium, Bioplast, and Teflon. For this, 160 piercings were used for the count of Colony Forming Units (CFU) and 32 piercings for analysis under scanning electron microscopy. Of these, 96 (24 of each type) were individually incubated in 5 mL of BHI ...

AIMS To investigate the survivability of vancomycin resistant enterococci (VRE) under dry starvation conditions and the fitness cost of vancomycin resistance. METHODS VRE colonies on cotton swabs were incubated at room temperature in a sterile box and cultured weekly until cultures no longer showed growth. Negative swabs inoculated into brain heart infusion (BHI) broth were subcultured to blo...

OBJECTIVE The presence of Candida albicans on the surfaces of denture-base acrylic resins is strongly related to the development of oral stomatitis. This study evaluated the antifungal action of different agents over microwave-cured acrylic resin without polishing specimens previously contaminated with Candida albicans. MATERIAL AND METHODS Sixty specimens were immersed in BHI broth previousl...

BACKGROUND To evaluate the antimicrobial activity of lidocaine (LD) topical anesthetic spray against oral microflora. METHODS Antimicrobial effects of 10% LD spray were assessed against six bacterial cultures obtained from volunteers: Escherichia coli, Enterococcus faecalis, Staphylococcus aureus, Streptococcus salivarius, Streptococcus pyogenes, and Streptococcus sanguinis. The filter papers...

El estudio tuvo como objetivo determinar la utilidad de los consorcios bacterianos en biorreactores tipo airlift para remoción cobre aguas contaminadas. Para investigación se tomó muestra del botadero “Muyuna” ubicado el Departamento Huánuco, Provincia Leoncio Prado, Distrito Rupa Rupa. Se utilizó medios cultivo: BHI (Brain Heart infusión Broth), Agar MacConkey, Manitol Salado, cistina-lactosa,...

The purpose of this research was to verify the influence of Iodoform on antimicrobial potential of calcium hydroxide. S. aureus, E. faecalis, P. aeruginosa, B. subtilis, C. albicans were the biological indicators. The substances tested were: calcium hydroxide + saline; calcium hydroxide + Iodoform + saline; Iodoform + saline. For the agar diffusion test, 18 Petri plates with 20 ml of BHI agar w...

Escherichia coli O157:H7, a leading cause of bacterial food borne disease outbreaks, is responsible for approximately 73,500 cases of foodborne illness per year. Recent research has shown that caffeine has the ability to inhibit DNA repair in bacteria and therefore could be mutagenic compound. The objective of this research was to determine the effectiveness of caffeine on inactivation of (E. c...

A mathematical approach incorporating the shoulder effect during the quantification of microbial heat inactivation is being developed based on »the number of log cycles of reduction« concept. Hereto, the heat resistance of Escherichia coli K12 in BHI broth has been quantitatively determined in a generic and accurate way by defining the time t for x log reductions in the microbial population, i....

in the present study, seven isolates of haemophilus influenzae type b were cultured in four different media to compare growth rate and capsule production. four liquid media namely brain heart infusion broth (bhi), trypticase soy broth (tsb), mueller hinton broth (mhb) and gonococci broth (gc) with added supplements (1% hemoglobin, 1% isovitalex) were used. the growth was measured by colony coun...