There has been an increased interest in essential oils in recent years in accordance with new treatments against pathogens. The aim of the present study was to investigate the contents and to compare the antimicrobial activity of different brands of commercial oils with two natural cinnamon oils. Antibacterial and antifungal activities of cinnamon oils were estimated using disc diffusion and macro dilution methods against Enterococcus faecalis ATCC 19433, Enterococcus faecalis ATCC 29212, Escherichia coli ATCC 25922, Escherichia coli ATCC 35218, Staphylococcus aureus ATCC 29213, Staphylococcus aureus ATCC 25923, methicillin resistant Staphylococcus aureus ATCC 43300, Pseudomonas aeruginosa ATCC 9027, Pseudomonas aeruginosa ATCC 27853, Bacillus subtilis ATCC 6633, Klebsiella pneumonia RSKK 574, Candida albicans ATCC 10231, Candida albicans ATCC 033. The essential oil compositions were illuminated by gas chromatography-mass spectroscopy. Trans-cinnamaldehyde was the major compound of the essential oils obtained from the bark (C4 and C5; 92.3 and 90.1% respectively). The results of the commercial oils have revealed that these oils can be accepted as artificial oils. All the oils showed antimicrobial activity in a range of doses thought to be from cinnamaldehyde content.
Objective: The genotypic analysis of the strains can provide information to evaluate the genetic relationships among strains and epidemiological investigations, and it is crucial for monitoring their circulation in different geographic regions. This study was to aiming to identify genetic similarities or dissimilarities among clinical Acinetobacter baumannii (A. baumannii) isolates from four different hospitals.
Result and Discussion: In this study, 78 non-duplicate clinical isolates of A. baumannii were received from patients in the critical care units. The colistin MIC values of 24 A. baumannii strains randomly selected from four different hospitals and known to have antibiotic susceptibility were determined. These strains were genetically characterized by the Enterobacterial repetitive intergenic consensus (ERIC)-PCR method. The results of the study showed that the isolates were divided into 2 clusters (A1 and A2) and Cluster A2 was represented by a single genotype (C1) and 23 interrelated genotypes were in Cluster A1.
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