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Abstract Background and Objective: Understanding the resistance patterns of bacteria and their sensitivity and attempting to find new compounds with broad effective spectrum would be significant in controlling infection. This study aimed at evaluating antibacterial potential of three honey samples produced in Golestan province, Iran, against Enterococcus faecalis strains. Material and Methods: After the isolation and identification of bacterial strains, their antibiotic resistance was determined using Kirby-Bauer method. Then, seven isolates of Enterococcus faecalis with multidrug-resistance were selected and antibacterial activities of honey samples assessed by disk-diffusion, well-diffusion and minimum inhibitory concentration test (MIC). Results: The highest diameter of inhibition zone in disk-diffusion and well diffusion methods is 20 mm and 26 mm, respectively. Also the MIC is measured 62.5 mg.ml for all samples. Conclusion: In prohibiting microbial growth, all three samples were successful and they could prevent growing bacterial infection in spite of remarkable resistance of Entrococcus. Hence, further research should be conducted to assess the effects of honey samples against other bacteria. Keywords: Multidrug-Resistance Enterococcus spp Honey Golestan Province

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Abstract Background and Objective: Honey is a healthy and nutritious food that has been used for a long time as a treatment for different diseases. One of the applied properties of honey is its antimicrobial effect, which differs between different types of honey due to variation of phenolic and antioxidant compositions. This study aimed to assess antimicrobial effect of honey on Bacillus cereus, considering its chemical properties. Material and Methods: Three samples of honey (A1 and A2 of Khorasan Razavi Province and A3 of South Khorasan province (were prepared and studied in terms of chemical parameters .The antibacterial effect of honey was surveyed throughTurbidimeter using spectrometer with incubator time of 2, 4, 6, and 8hrs. the level of turbidity caused by bacterium growth was measured at different times with a wavelength of 600nm. Results: According to the study, the samples containing higher concentration of polyphenol has more antimicrobial activity. The samples of A2, A3, and A1 had the highest concentration of polyphenol, respectively. Conclusion: The results indicate the prebiotic effect of honey that can be justified by the presence of fructo-oligosacharids and vitamin B. Keywords: Honey, Bacillus Cereus, Antibacterial, Turbidimetry.

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ABSTRACT
            Background and Objectives: Pseudomonas aeruginosa is a gram negative opportunistic pathogen and an important cause of wound infections and nosocomial infections. The purpose of this study was to study inhibitory effects of a new ointment prepared from medicinal plants against P. aeruginosa isolates.
            Methods: In this study, an ointment called ZOUSH was prepared from mixing alcoholic extracts of Satureja khuzestaniea, Zataria multiflora, Mentha mozaffariani Jamzad, honey and polyurethane. Minimal inhibitory concentration of ZOUSH and its compositions alone or combined was determined using the disk diffusion method.
            Results: S. khuzestaniea, Z. multiflora and Mentha mozaffariani Jamzad had inhibitory effects against P. aeruginosa. The ZOUSH ointment had greater antibacterial effects than the any of its compositions used solely or combined. The diameter of inhibition zone had a direct relationship with the concentration of the extracts. Moreover, the antibacterial effect of the ZOUSH ointment was identical to that of polymyxine B (300 µg).
            Conclusion: We demonstrated that the ZOUSH ointment has inhibitory effects against P. aerugionosa. The inhibition zone diameter is directly correlated with the concentration of the extracts. Our results suggest that the ointment could be useful for treatment of burn wounds and skin infections.