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Biological characteristics of enteropathogenic Aeromonas species isolated from different Egyptian foods
Faculty
Science
Year:
2021
Type of Publication:
ZU Hosted
Pages:
Authors:
Gamal abdelaziz abdelhamid
Staff Zu Site
Abstract In Staff Site
Journal:
Biologia Springer
Volume:
Keywords :
Biological characteristics , enteropathogenic Aeromonas species isolated
Abstract:
A total of 185 food samples in Sharkia Governorate, Egypt were analyzed for the presence of Aeromonas spp. The recovered isolates were characterized by biochemical tests based on Bergey’s Manual of Systematic Bacteriology and confirmed by API-20E kit. Of the samples analyzed, 56 (30.27 %) were positive for Aeromonas spp., with the highest incidence in raw milk (55 %) followed by Nile tilapia (48.6 %). A. hydrophila and A. salmonicida were the most predominantly isolated from raw milk and A. caviae was the most prevalent in raw lean beef. A variety of extracellular virulence factors were determined and 83.3 % exhibited β-hemolytic activity; 80 % exhibited lecithinase activity; 75 % exhibited protease activity and 90 % exhibited lipolytic activity. Furthermore, the cytotoxic (act) and the cytotonic (alt) enterotoxins were screened in three selected isolates using PCR assay and the data showed the detection of the two genes with predicted sizes of 232 bp and 442 bp fragments, respectively. These findings indicated a major health risk of infection with enterotoxigenic Aeromonas bacteria for people consuming raw and improper cooked food in Egypt.
Author Related Publications
Gamal abdelaziz abdelhamid, "Partial Purification of two Novel Variants of Bacteriocins Produced by Lactic Acid Bacteria", IDOSI Publications, 2014
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Gamal abdelaziz abdelhamid, "Antimicrobial activity of Enterococcus faecium NM2 Isolated from Urine : Purification, Charactrization and Bactericidal Action of Enterocin NM2", Knowlege review Malaysia, 2014
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Gamal abdelaziz abdelhamid, "Evaluation of the Antimicrobial Activity, Starter Capability and Technological Properties of Some Probiotic Bacteria Isolated from Egyptian Pickles", Life Science journal, 2014
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Gamal abdelaziz abdelhamid, "Incidence and virulence of Bacillus cereus isolated from Egyptian foods during four seasons", Acadimic Journals, 2012
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Gamal abdelaziz abdelhamid, "Biological Characterization and Inhibition of Streptococcus pyogenes ZUH1 Causing Chronic Cystitis by Crocus sativus Methanol Extract, Bee Honey Alone or in Combination with Antibiotics: An In Vitro Study", MDPI, ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND, 2019
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Department Related Publications
Mohamed Farouk Ibrahim Aly, "Characterization of grounds, pigments, binding media, and varnish coating of the Angel Michael' icon, 18th century, Egypt", ELSEVIER Publication, 2016
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Abdelrhman Ahmed Mohmed Askora, "Lysogenic Conversion of the Phytopathogen Ralstonia solanacearum by the P2virus ϕRSY1", Frontiers in Microbiology, 2017
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Mohamed Farouk Ibrahim Aly, "Synergistic effect of antibiotics and plant extract to control clinical bacterial isolates implicated in urinary tract infections", Journal of Applied Sciences Research, 2009
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Rashad Mohamed Ahmed Mohamed Kpich, "Metabolic Engineering Towards the Enhancement of Photosynthesis", American Society of Plant Biologists, 2016
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Rania Mohamed Ahmed Aly, "Molecular characterization of food borne coagulase negative Staphylococci", المؤتمر الدولى الخامس بعنوان التطبيقات الحيوية وعلاقتها بالغذاء والدواء فى مجال عتوم النبات والميكروبيولوجى, 2014
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