Insertional inactivation of dsbA produces sensitivity to cadmium and zinc in Escherichia coli.

Investigation on Escherichia Coli Inactivation and Some Quality Changes in Carrot Juice by Ultrasound Technique

In this study Response Surface Methodology was used to optimize process conditions and to evaluate the effect of ultrasound on quality attributes (antioxidant activity, pH, total soluble solid, turbidity) and the inactivation of Escherichia coli bacteria in carrot juice. Independent variables in this study were temperature (25-50°C), time (20-40 min) and frequency (0-130 kHz). In this study the...

Investigation on Escherichia Coli Inactivation and Some Quality Changes in Carrot Juice by Ultrasound Technique

In this study Response Surface Methodology was used to optimize process conditions and to evaluate the effect of ultrasound on quality attributes (antioxidant activity, pH, total soluble solid, turbidity) and the inactivation of Escherichia coli bacteria in carrot juice. Independent variables in this study were temperature (25-50°C), time (20-40 min) and frequency (0-130 kHz). In this study the...

Photodynamic inactivation effect of methylene blue and toluidine blue O on ATCC Escherichia coli and clinical isolate of multidrug-resistant Escherichia coli

بررسی خواص ضد میکروبی نانوذرات اکسید روی سنتز شده به کمک امواج اولتراسونیک

Introduction: Introducing a powerful antibacterial agent to control pathogenic bacteria especially strains resistant to antibiotics is of paramount importance. The purpose of this study is ZnO nanoparticles synthesis by using ultrasonic waves and evaluation of its antibacterial properties. Methods: Zinc oxide nanoparticles were synthesized using ultrasound irradiation. Then physical and chemic...

Zinc oxide nanoparticle reduced biofilm formation and antigen 43 expressions in uropathogenic Escherichia coli

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...