Microbiology
Mazaher Mazaher Ghorbani; Slaman Ahmady-Asbchin
Volume 25, Issue 4 , September and October 2018, , Pages 591-598
Abstract
Background and Objective: Because of the increasing resistance of pathogenic bacteria to common antibiotics, the new generation of researchers sought antimicrobial agents with plant origin as alternative medicine. Oregano is from Lamiaceae family and coriander is from Apiaceae family and has antimicrobial ...
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Background and Objective: Because of the increasing resistance of pathogenic bacteria to common antibiotics, the new generation of researchers sought antimicrobial agents with plant origin as alternative medicine. Oregano is from Lamiaceae family and coriander is from Apiaceae family and has antimicrobial properties.Materials and Methods: This study aimed to investigate and compare the inhibitory effects of alcoholic extracts of coriander and oregano plants on Staphylococcus aureus, Klebsiella and Salmonella. 1000 ml of alcohol poured round-bottom flask, then the target plant (200-300 g of dried powder of plant) put into envelopes of filter paper and envelopes was placed in a distillation device. After 24-48 hours the obtained alcoholic extract was placed in the oven. DMSO was used to provide different concentrations of ethanol extract.Results: The concentrations of 31/25 and 62/5 mg / ml of alcoholic extract of oregano and concentrations of 62.5 and 125 mg / ml coriander were able to inhibit and kill Staphylococcus aureus and weren`t able to inhibit and kill Salmonella and Klebsiella respectively .Conclusion: Although the clinical application of plant extracts and essences seems valuable due to fewer side effects compared to conventional therapeutic agents, in order to clinical application of plant extracts of oregano and coriander, more research about the mechanism of action of effective components of this plant on the microbial agents is needed.
Yaser Nozohor; Mohammad hasan Rasouli fard; Jafar Rahmani; Payam Faramarzi
Volume 25, Issue 2 , May and June 2018, , Pages 303-309
Abstract
Introduction: Urinary tract infection is one of the most common infections and the second cause of infection in human body. The main cause of this infection is gram negative bacteria such as E coli. The base of treatment for urinary tract infection is administrating an appropriate antibiotic. Today, ...
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Introduction: Urinary tract infection is one of the most common infections and the second cause of infection in human body. The main cause of this infection is gram negative bacteria such as E coli. The base of treatment for urinary tract infection is administrating an appropriate antibiotic. Today, antibiotic resistance is considered as an important challenge in treating infections. High and unnecessary use of antibiotics especially in urinary infections resulted in resistance to some antibioticsThis study aimed to evaluate the antibacterial effect of alcoholic extract of Escherichia coli took over the pine leaves.Methods: In this experimental study the Alcoholic extract was extracted using. its antimicrobial activity agar disk diffusion method for determination of bacterial sensitivity and dilution method for determination of minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) is used separately.Results: Also the results of MIC and MBC tests indicated that the inhibition of E.coli and Staphilococci aureus bacterial growth by Alcoholic extract of pine had a direct relationship with the amount of available alcoholic extract of pine. with increasing of Alcoholic extract of pine in each dilution, reduced the number of cultured bacterial colonies and no bacterial growth was observed in the dilution equivalent to MBC of Alcoholic extract of pine.Conclusion: The results suggest that Alcoholic extract of pine can be used as a source of cheap and accessible replacing chemical drugs to treat some bacterial infections.