scholarly journals Antibacterial Effect of Ethanolic Extract of Allium sativum on Biofilm Forming Staphylococcus aureus which Cause Folliculitis

Author(s):  
Shatha Al Bayati
2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Faramarz Zakavi ◽  
Leila Golpasand Hagh ◽  
Arash Daraeighadikolaei ◽  
Ahmad Farajzadeh Sheikh ◽  
Arsham Daraeighadikolaei ◽  
...  

Background. In this study antimicrobial effect of ethanolic and aqueous extracts of Juglans regia bark in Iran was evaluated on four different oral bacteria,Streptococcus mutans,Streptococcus salivarius,Streptococcus sanguis, andStaphylococcus aureus.Methods. Aqueous and ethanol extracts of Juglans regia bark were prepared by using disk diffusion technique and Minimal Inhibitory Concentration (MIC) methods. Tetracycline 30 μg and Erythromycin 15 μg were used as positive control and water as negative control in disk diffusion and MIC methods. Data were analyzed by ANOVA test.Results. The results showed thatS. sanguisandS. mutanswere the most sensitive and the most resistant bacteria against ethanolic and aqueous extracts, respectively. Ethanolic extract had significant antibacterial effect against all tested bacteria. Aqueous extract did not show antibacterial effect onS. mutans, in contrast to ethanolic extract. Aqueous extract had significantly antibacterial effect againstStaphylococcus aureus,S. salivarius, andS. sanguiscompared to control (P<0.0001), but it did not show effect onS. mutanswhen compared with Erythromycin. According to the obtained MIC values, ethanol extract of Juglans regia bark had the lowest rate.Conclusion. The results may provide the basis for using natural antimicrobial substance for oral hygiene prophylaxis purposes.


2014 ◽  
Vol 13 (1) ◽  
pp. 1 ◽  
Author(s):  
N.A. Salih

The antibacterial activity of aqueous and 95% ethanol extracts of nettle leaf was tested against some Gram-negative and Gram-positive bacteria isolated from hospitalized patients by the agar well diffusion method. Staphylococcus aureus, Escherichia coli, Klebsiella spp., Bacillus Subtillus, Proteus spp. Salmonella spp. and Pseudomonas spp. were used. The results indicate that both extracts showed different antibacterial activities which were in favor of ethanolic extract because of more solubility of active ingredient in ethanol than in water. Staphylococcus aureus, Bacillus Subtillus, and Salmonella spp. showed the highest susceptibility to nettle extracts antibacterial effect, while E coli, Pseudomonas and Proteus were less susceptible. The only clear resistant bacteria isolate was Klebsiella spp.


Mediscope ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 31-37
Author(s):  
Md Abdur Rahman ◽  
Shyamal Kumar Shaha ◽  
Syed Didarul Haque ◽  
Refat Zahan ◽  
Tarifat Alam ◽  
...  

This experimental study was carried out to determine the antibacterial effect of Crude Ginger Extract (CGE) and Ethanolic Ginger Extract (EGE) against standard strain of Staphylococcus aureus in the Department of Pharmacology and Therapeutics with the collaboration of Department of Microbiology, Mymensingh Medical College, Mymensingh from July 2016 to June 2017. The growth of Staphylococcus aureus started to be inhibited from 70% CGE incorporated media and complete inhibition of growth occurred at 100% CGE. In case of Ethanolic Extract, sensitivity was seen against Staphylococcus aureus using disc diffusion method. Zones of inhibition were 8, 13 and 19 mm at 25, 50 and 100 μg/10 μl respectively. The minimum inhibitory concentration (MIC) of EGE was assessed by broth dilution technique. The MIC of EGE was 400 μg/ml against Staphylococcus aureus. From the study it is clearly observed that there is definite antibacterial effect of crude ginger extract (CGE) and ethanolic ginger extract against Staphylococcus aureus. Further studies are required to detect and isolate the active ingredients present in the Ginger extract responsible for antibacterial effect. Mediscope Vol. 7, No. 1: Jan 2020, Page 31-37


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