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DJPS

Diyala Journal For Pure Science

Scientific Refereed Journal Published By College of Science - University of Diyala

 

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djps.1402.411C

Diyala Journal For Pure Sciences DJPS

ISRA Impact Factor:3.715

P- ISSN:2222-8373, E-ISSN:2518-9255

Volume 14, Issue 2 , April . 2018

 

 

The Effect of Methanolic Extract of Quercus infectoria Against Some Causative Agents of Diarrhea and Eliminate their Antimicrobial Resistance

 

Zirk Faki Ahmed, Beyman Akram Hama , Rana Mujahid Abdullah

 

Year: 2018, Volume: 14, Issue: 2

 

Pages: 235-249, DOI: http://dx.doi.org/10.24237/djps.1402.411C

 

Language: English

 

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Abstract


 

We obtained 124 bacterial isolates including: Escherechia. coli. I (35 isolates 7%) isolates, E. coli II (8 isolates 1.6%), E. coli III (17 isolates 3.4%), E. coli IV (22 isolates 4.4%), Shigella dysenteriae (8 isolates 1.6%), Salmonella arizonae (16 isolates 3.2%), Salmonella typhi (12 isolates 2.4%) and Vibrio cholera (6 isolates 1.2%) Sensitivity test showed high resistance to amoxicillin/clavulanic acid, amoxicillin, ampicillin, erythromycin, streptomycin, nitrofurantoin, cefixime, rifampicin, tetracycline, trimethoprim - sulfamethoxazole and tobramycin. Most of the isolates appeared sensitive to nalidixic acid, gentamycin, amikacin, doxycyclin, cefotaxime, cephalexine and chloramphenicol. All isolates were sensitive to ciprofloxacin. The MIC of the methanol extracts of Quercus infectoria against different pathogenic bacteria was ranging between 2.5 mg/ml - 20.0 mg / ml and the MBC was 1.25 mg/ml - 20.0mg/ ml. The isolates revealed high resistance to most widely used antibiotic, the methanol extracts of Quercus infectoria showed high potential as antibacterial agent.

 

Key words: Antimicrobial activity, Quercus infectoria, pathogenic bacteria.

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