The antimicrobial activity of probiotic bacteria Escherichia coli isolated from different natural sources against hemorrhagic E. coli O157:H7

Background: Diarrheal diseases have been seen in all geographical areas throughout the world. Therefore, considering treatment, could be deemed a necessary action. Objective: The aim of this study was to determine the antimicrobial effect of probiotic bacterial strains isolated from different nat...

Full description

Bibliographic Details
Main Authors: Sahar Karimi, Fatemeh Azizi, Mohammad Nayeb-Aghaee, Leila Mahmoodnia
Format: Article
Language:English
Published: Electronic Physician 2018-03-01
Series:Electronic Physician
Subjects:
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5942577/
_version_ 1818864279691984896
author Sahar Karimi
Fatemeh Azizi
Mohammad Nayeb-Aghaee
Leila Mahmoodnia
author_facet Sahar Karimi
Fatemeh Azizi
Mohammad Nayeb-Aghaee
Leila Mahmoodnia
author_sort Sahar Karimi
collection DOAJ
description Background: Diarrheal diseases have been seen in all geographical areas throughout the world. Therefore, considering treatment, could be deemed a necessary action. Objective: The aim of this study was to determine the antimicrobial effect of probiotic bacterial strains isolated from different natural sources against 2 pathotypes of pathogenic E. coli. Methods: This cross-sectional study of Martyr Chamran University of Ahvaz was carried out from December 2013 to July 2014. A total of 13 probiotic colonies isolated from 20 samples of traditional dairy products including (yogurt, cheese, milk) and 20 samples of vegetables including carrots and cabbages (red and white) of which 5 isolates were selected to evaluate the antimicrobial effect against 2 Escherichia coli pathotypes, randomly. Antimicrobial effect was evaluated using two methods: disk diffusion and well diffusion tests and measuring growth inhibition zones of probiotics against 2 pathotypes of pathogenic E. coli. Results: Obtained results showed growth inhibition effects of all 5 probiotic strains against Escherichia coli pathotypes in both used methods. All selected strains showed considerable antimicrobial effect on Escherichia coli O157:H7 strain, but had no inhibitory effect against Enterohemorrhagic Escherichia coli. Conclusion: This study demonstrated considerable antimicrobial effect against E. coli O157:H7 strain. Due to this, characteristic and similar antimicrobial effects of probiotics bacteria, increasing use of the probiotics as a natural and modern method for prevention of different diseases is recommended.
first_indexed 2024-12-19T10:29:08Z
format Article
id doaj.art-3c7d6182ecd949a88fa8c124398ecd8d
institution Directory Open Access Journal
issn 2008-5842
2008-5842
language English
last_indexed 2024-12-19T10:29:08Z
publishDate 2018-03-01
publisher Electronic Physician
record_format Article
series Electronic Physician
spelling doaj.art-3c7d6182ecd949a88fa8c124398ecd8d2022-12-21T20:25:48ZengElectronic PhysicianElectronic Physician2008-58422008-58422018-03-011036548655310.19082/6548The antimicrobial activity of probiotic bacteria Escherichia coli isolated from different natural sources against hemorrhagic E. coli O157:H7Sahar KarimiFatemeh AziziMohammad Nayeb-AghaeeLeila MahmoodniaBackground: Diarrheal diseases have been seen in all geographical areas throughout the world. Therefore, considering treatment, could be deemed a necessary action. Objective: The aim of this study was to determine the antimicrobial effect of probiotic bacterial strains isolated from different natural sources against 2 pathotypes of pathogenic E. coli. Methods: This cross-sectional study of Martyr Chamran University of Ahvaz was carried out from December 2013 to July 2014. A total of 13 probiotic colonies isolated from 20 samples of traditional dairy products including (yogurt, cheese, milk) and 20 samples of vegetables including carrots and cabbages (red and white) of which 5 isolates were selected to evaluate the antimicrobial effect against 2 Escherichia coli pathotypes, randomly. Antimicrobial effect was evaluated using two methods: disk diffusion and well diffusion tests and measuring growth inhibition zones of probiotics against 2 pathotypes of pathogenic E. coli. Results: Obtained results showed growth inhibition effects of all 5 probiotic strains against Escherichia coli pathotypes in both used methods. All selected strains showed considerable antimicrobial effect on Escherichia coli O157:H7 strain, but had no inhibitory effect against Enterohemorrhagic Escherichia coli. Conclusion: This study demonstrated considerable antimicrobial effect against E. coli O157:H7 strain. Due to this, characteristic and similar antimicrobial effects of probiotics bacteria, increasing use of the probiotics as a natural and modern method for prevention of different diseases is recommended.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5942577/ProbioticsEnteropathogenesisEnterohemorrhagic Escherichia coli
spellingShingle Sahar Karimi
Fatemeh Azizi
Mohammad Nayeb-Aghaee
Leila Mahmoodnia
The antimicrobial activity of probiotic bacteria Escherichia coli isolated from different natural sources against hemorrhagic E. coli O157:H7
Electronic Physician
Probiotics
Enteropathogenesis
Enterohemorrhagic Escherichia coli
title The antimicrobial activity of probiotic bacteria Escherichia coli isolated from different natural sources against hemorrhagic E. coli O157:H7
title_full The antimicrobial activity of probiotic bacteria Escherichia coli isolated from different natural sources against hemorrhagic E. coli O157:H7
title_fullStr The antimicrobial activity of probiotic bacteria Escherichia coli isolated from different natural sources against hemorrhagic E. coli O157:H7
title_full_unstemmed The antimicrobial activity of probiotic bacteria Escherichia coli isolated from different natural sources against hemorrhagic E. coli O157:H7
title_short The antimicrobial activity of probiotic bacteria Escherichia coli isolated from different natural sources against hemorrhagic E. coli O157:H7
title_sort antimicrobial activity of probiotic bacteria escherichia coli isolated from different natural sources against hemorrhagic e coli o157 h7
topic Probiotics
Enteropathogenesis
Enterohemorrhagic Escherichia coli
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5942577/
work_keys_str_mv AT saharkarimi theantimicrobialactivityofprobioticbacteriaescherichiacoliisolatedfromdifferentnaturalsourcesagainsthemorrhagicecolio157h7
AT fatemehazizi theantimicrobialactivityofprobioticbacteriaescherichiacoliisolatedfromdifferentnaturalsourcesagainsthemorrhagicecolio157h7
AT mohammadnayebaghaee theantimicrobialactivityofprobioticbacteriaescherichiacoliisolatedfromdifferentnaturalsourcesagainsthemorrhagicecolio157h7
AT leilamahmoodnia theantimicrobialactivityofprobioticbacteriaescherichiacoliisolatedfromdifferentnaturalsourcesagainsthemorrhagicecolio157h7
AT saharkarimi antimicrobialactivityofprobioticbacteriaescherichiacoliisolatedfromdifferentnaturalsourcesagainsthemorrhagicecolio157h7
AT fatemehazizi antimicrobialactivityofprobioticbacteriaescherichiacoliisolatedfromdifferentnaturalsourcesagainsthemorrhagicecolio157h7
AT mohammadnayebaghaee antimicrobialactivityofprobioticbacteriaescherichiacoliisolatedfromdifferentnaturalsourcesagainsthemorrhagicecolio157h7
AT leilamahmoodnia antimicrobialactivityofprobioticbacteriaescherichiacoliisolatedfromdifferentnaturalsourcesagainsthemorrhagicecolio157h7