We aimed in this study to evaluate the effectiveness of Syrian propolis on some bacterial strains isolated from Al-Assad hospital in Latakia, to estimate its antimicrobial activity. Thus, we studied two propolis samples from two regions in the Syrian
coast, and prepared ethanolic extracts of propolis (EEP) with different concentrations (0.5%, 1%, 5%, 10%, and 20%). Then we tested these extracts on four strains of bacteria (Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Acinetobacter baumannii), using pore method on Muller Hinton Agar. As we observed, the bacteria showed diverse susceptibility to the extracts and the most susceptible bacterium was Staphylococcus aureus which was sensitive to all concentrations and especially for EEP 20%. However, the least affected bacteria were E. coli and Pseudomonas, as the 0.5% and 1% EEP had no efficacy. On the other hand, there were little differences in antimicrobial activity between the two samples of propolis.
This In Vivo study aimed to compare the antibacterial activity of
alcoholic extract of propolis and Miswak with sodium hypochlorite and saline.
The study was performed on 40 infected single root canals for
patients of both sexes, regardless of gender or age.
Essential oils from peels of 6 citrus species were extracted. The species were
lemon (Citrus limon), orange (C. sinensis), grapefruit (C. paradisi), pomelo
(C. maxima), mandarin (C. reticulata) and bitter lemon (C. aurantium) using
hydro-distillat
ion (Clevenger type).
In general Gram-positive bacteria were more sensitive to the oil
extracts tested than Gram-negative bacteria, and P. aeruginosa was the most
sensitive within the Gram-negative group.
This study was conducted at the laboratory of Food Science Department,
Agriculture College, Damascus University to isolate and characterize of
Lactobacilli bacteria from some Syrian foods and detection the effectiveness of
anti-pathogenic bacteria
l growth. Lactic acid bacteria from different dairy
products, pickles and dried plant samples were isolated and identified
according to common characteristics. Results showed that twenty-three isolates
were rods while only 2 of the them were coccid. These isolates were tested for
their antimicrobial effect against pathogenic bacteria for both gram positive
bacteria (Staphylococcus aureus) and gram negative bacteria (Klebsiella
pneumonia and Escherichia coli). Fifteen isolates demonstrated antimicrobial
effect against the three tested bacteria, of which CP50 and CP46 isolates
showed the best antimicrobial effect. Results of the standard physiological and
biochemical tests identified fourteen isolates as Lactobacillus plantarum and one
isolate as Lactobacillus fermentum.
The antimicrobial activity of aqueous extract of Zingiber Officinalis
were tested for their antifungal activity against the following
dermatophytes :Candida albicans, Cladosporium cladosporiosis ,
Cryptococcus neuphormans, Trichophyton violaceum a
nd against
other four bacteria : E. coli, Pseudomonas aeruginosa.
Staphylococcus aureus, Streptococcus pyogenes. The extract used in
traditional medicine for the treatment of nausea was tested in vitro
through the Agar Disk Diffusion Method. The minimum inhibitory
concentration (MIC) of extracts determined by the Agar dilution
method ranged from 1.5 to 12.5 mcg. The most sensitive
microorganisms to the extract were Candida albicans with MIC 1.5
and E coli with MIC 1.5 mcg.
