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72091

PREVALENCE OF Enterococcus IN EGYPTIAN DAIRY PRODUCTS

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Last updated: 22 Jan 2023

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Abstract

This study examined the prevalence and diversity of Enterococcus species in traditional Egyptian dairy products. A total of 24 samples of traditional Egyptian dairy products including pickled Domiati cheese (7 samples), fresh Domiati cheese (5 samples), Kariesh cheese (6 samples), and Mish cheese (6 samples) were randomly collected from local markets in Mansoura city and examined for the presence of Enterococcus by plating on Kanamycin Asculin Azid agar. Out of 77 potential Enterococcus isolates recovered from those samples, 61 cultures were confirmed as belonging to the Enterococuss genus. Theseconfirmed cultures were isolated from pickled Domiati cheese (19 isolates), fresh Domiati cheese (28 isolates), Kariesh cheese (7 isolates ) and Mish cheese (7 isolates). These cultures were further identified to the species level by examining their ability to ferment glucose, sucrose, lactose, sorbitol, and mannitol, produce pigment and hydrogen sulphide (H2S), show motility, and utilize pyruvate. Based on these physiological examinations, 80% of the isolates were identified as E. faecium. Other Enterococcus species including E. faecalis, E. gallinarum, and E. malodoratus also existed in the examined samples, but at minor incidence rates of 8%, 2%, and 10%, respectively. E. faecium isolates could be recovered from all examined traditional Egyptian dairy products. E. faecalis, and E. gallinarum were isolated from Domiati cheese, but could not be detected in Kariesh cheese or Mish cheese. Whereas, E. malodoratus could be isolated from both Kariesh cheese and Mish cheese, but could not be cultured from pickled or fresh Domiati cheese. These results highlighted Enterococcus as prevalent lactic acid bacteria that existed as diverse species in traditional Egyptian dairy products.

DOI

10.21608/jfds.2013.72091

Keywords

Enterococcus, Dairy products, Enterococcus faecium, diversity, Lactic acid bateria

Authors

First Name

T.

Last Name

Nassib

MiddleName

A.

Affiliation

Dairy Department, Faculty of Agriculture, Mansoura University

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City

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Orcid

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First Name

W.

Last Name

El-Sharoud

MiddleName

M.

Affiliation

Dairy Department, Faculty of Agriculture, Mansoura University

Email

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City

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Orcid

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First Name

Ola

Last Name

Shalabi

MiddleName

M. A.

Affiliation

Dairy Department, Faculty of Agriculture, Mansoura University

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Volume

4

Article Issue

10

Related Issue

10963

Issue Date

2013-10-01

Receive Date

2020-02-19

Publish Date

2013-10-01

Page Start

487

Page End

496

Print ISSN

2090-3650

Online ISSN

2090-3731

Link

https://jfds.journals.ekb.eg/article_72091.html

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https://jfds.journals.ekb.eg/service?article_code=72091

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2

Type

Original Article

Type Code

886

Publication Type

Journal

Publication Title

Journal of Food and Dairy Sciences

Publication Link

https://jfds.journals.ekb.eg/

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Article

Created At

22 Jan 2023