Molecular Detection of Staphylococcal Enterotoxins and mecA Genes Products in Selected Food Samples Collected from Different Areas in Khartoum State

Staphylococcal food poisoning is an intoxication that results from the consumption of improperly prepared or stored foods containing sufficient amounts of one or more preformed S. aureus enterotoxins. Nowadays, many researchers worldwide noted an emergence of resistant strains such as Staphylococci...

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Main Authors: Mohammed Yahya Ahmed, Hashim Abdalbagi Ali, Babbiker Mohammed Taher Gorish, Sara Omer Ali, Eman Saif Aldein Abdalrhim, Mawada Hamza Mergani, Asmaa Abass Abd Elgadir, Somaya Khalid Mohammed, Salma Omer Ahmed, Naglaa Alsaeid Musa, Alaa Saeed Ahmed, Wafaa Mohammed Abdalla, Yousif Fadlallah Hamedelnil, Ahmed Ibrahim Hashim, Hisham N. Altayb
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:International Journal of Microbiology
Online Access:http://dx.doi.org/10.1155/2021/5520573
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author Mohammed Yahya Ahmed
Hashim Abdalbagi Ali
Babbiker Mohammed Taher Gorish
Sara Omer Ali
Eman Saif Aldein Abdalrhim
Mawada Hamza Mergani
Asmaa Abass Abd Elgadir
Somaya Khalid Mohammed
Salma Omer Ahmed
Naglaa Alsaeid Musa
Alaa Saeed Ahmed
Wafaa Mohammed Abdalla
Yousif Fadlallah Hamedelnil
Ahmed Ibrahim Hashim
Hisham N. Altayb
author_facet Mohammed Yahya Ahmed
Hashim Abdalbagi Ali
Babbiker Mohammed Taher Gorish
Sara Omer Ali
Eman Saif Aldein Abdalrhim
Mawada Hamza Mergani
Asmaa Abass Abd Elgadir
Somaya Khalid Mohammed
Salma Omer Ahmed
Naglaa Alsaeid Musa
Alaa Saeed Ahmed
Wafaa Mohammed Abdalla
Yousif Fadlallah Hamedelnil
Ahmed Ibrahim Hashim
Hisham N. Altayb
author_sort Mohammed Yahya Ahmed
collection DOAJ
description Staphylococcal food poisoning is an intoxication that results from the consumption of improperly prepared or stored foods containing sufficient amounts of one or more preformed S. aureus enterotoxins. Nowadays, many researchers worldwide noted an emergence of resistant strains such as Staphylococci particularly for the antibiotic methicillin. Therefore, this study was aimed to determine the existence of Staphylococcus aureus and its enterotoxins, mecA genes, in selected food samples. A total of 400 selected food samples were collected from different areas in Khartoum State. The selected foods included cheese, meat products, fish, and raw milk. One hundred samples from each type of food were cultivated, and the resultant growth yielded 137 (34.25%) S. aureus, 126 (31.5%) bacteria other than S. aureus, and 137 (34.25%) yielded no growth. Eighty-four of the 137 S. aureus isolates were randomly selected and tested for the presence of mecA and enterotoxin genes. The oxacillin sensitivity test showed that 15 (11%) of 137 S. aureus isolates were oxacillin resistant. The PCR assay showed that the mecA gene was detected in 15 of 84 (17%) S. aureus isolates. Simultaneously, only 2 (2.385%) out of 84 S. aureus isolates showed an enterotoxin B gene product. There was a relatively moderate prevalence of methicillin-resistant Staphylococcus aureus with very low frequency of enterotoxin B gene in different kinds of selected food samples collected from Khartoum State. These findings elucidate the increased risk on public in Khartoum being affected by Staphylococcal food poisoning upon consumption of dairy or meat products prepared in unhygienic conditions that could lead to intoxication by Staphylococcus aureus enterotoxins.
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spelling doaj-art-0b2be46be3bd4add8079d9d82f728ea72025-02-03T05:49:16ZengWileyInternational Journal of Microbiology1687-918X1687-91982021-01-01202110.1155/2021/55205735520573Molecular Detection of Staphylococcal Enterotoxins and mecA Genes Products in Selected Food Samples Collected from Different Areas in Khartoum StateMohammed Yahya Ahmed0Hashim Abdalbagi Ali1Babbiker Mohammed Taher Gorish2Sara Omer Ali3Eman Saif Aldein Abdalrhim4Mawada Hamza Mergani5Asmaa Abass Abd Elgadir6Somaya Khalid Mohammed7Salma Omer Ahmed8Naglaa Alsaeid Musa9Alaa Saeed Ahmed10Wafaa Mohammed Abdalla11Yousif Fadlallah Hamedelnil12Ahmed Ibrahim Hashim13Hisham N. Altayb14Department of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Omdurman Islamic University, Omdurman, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanDepartment of Microbiology, Faculty of Medical Laboratory Science, Sudan University of Science and Technology, Khartoum, SudanStaphylococcal food poisoning is an intoxication that results from the consumption of improperly prepared or stored foods containing sufficient amounts of one or more preformed S. aureus enterotoxins. Nowadays, many researchers worldwide noted an emergence of resistant strains such as Staphylococci particularly for the antibiotic methicillin. Therefore, this study was aimed to determine the existence of Staphylococcus aureus and its enterotoxins, mecA genes, in selected food samples. A total of 400 selected food samples were collected from different areas in Khartoum State. The selected foods included cheese, meat products, fish, and raw milk. One hundred samples from each type of food were cultivated, and the resultant growth yielded 137 (34.25%) S. aureus, 126 (31.5%) bacteria other than S. aureus, and 137 (34.25%) yielded no growth. Eighty-four of the 137 S. aureus isolates were randomly selected and tested for the presence of mecA and enterotoxin genes. The oxacillin sensitivity test showed that 15 (11%) of 137 S. aureus isolates were oxacillin resistant. The PCR assay showed that the mecA gene was detected in 15 of 84 (17%) S. aureus isolates. Simultaneously, only 2 (2.385%) out of 84 S. aureus isolates showed an enterotoxin B gene product. There was a relatively moderate prevalence of methicillin-resistant Staphylococcus aureus with very low frequency of enterotoxin B gene in different kinds of selected food samples collected from Khartoum State. These findings elucidate the increased risk on public in Khartoum being affected by Staphylococcal food poisoning upon consumption of dairy or meat products prepared in unhygienic conditions that could lead to intoxication by Staphylococcus aureus enterotoxins.http://dx.doi.org/10.1155/2021/5520573
spellingShingle Mohammed Yahya Ahmed
Hashim Abdalbagi Ali
Babbiker Mohammed Taher Gorish
Sara Omer Ali
Eman Saif Aldein Abdalrhim
Mawada Hamza Mergani
Asmaa Abass Abd Elgadir
Somaya Khalid Mohammed
Salma Omer Ahmed
Naglaa Alsaeid Musa
Alaa Saeed Ahmed
Wafaa Mohammed Abdalla
Yousif Fadlallah Hamedelnil
Ahmed Ibrahim Hashim
Hisham N. Altayb
Molecular Detection of Staphylococcal Enterotoxins and mecA Genes Products in Selected Food Samples Collected from Different Areas in Khartoum State
International Journal of Microbiology
title Molecular Detection of Staphylococcal Enterotoxins and mecA Genes Products in Selected Food Samples Collected from Different Areas in Khartoum State
title_full Molecular Detection of Staphylococcal Enterotoxins and mecA Genes Products in Selected Food Samples Collected from Different Areas in Khartoum State
title_fullStr Molecular Detection of Staphylococcal Enterotoxins and mecA Genes Products in Selected Food Samples Collected from Different Areas in Khartoum State
title_full_unstemmed Molecular Detection of Staphylococcal Enterotoxins and mecA Genes Products in Selected Food Samples Collected from Different Areas in Khartoum State
title_short Molecular Detection of Staphylococcal Enterotoxins and mecA Genes Products in Selected Food Samples Collected from Different Areas in Khartoum State
title_sort molecular detection of staphylococcal enterotoxins and meca genes products in selected food samples collected from different areas in khartoum state
url http://dx.doi.org/10.1155/2021/5520573
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