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81941

ISOLATION OF EXOPOLYSACCHARIDE – PRODUCING LACTIC ACID BACTERIA FROM TRADITIONAL EGYPTIAN DAIRY PRODUCTS

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Last updated: 22 Jan 2023

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Abstract

The present study aimed to isolate and characterize strains of exopolysaccharide (EPS)-producing lactic acid bacteria (LAB) from traditional Egyptian dairy products. A total of 388 suspected LAB isolates were recovered from 100 samples of traditional Egyptian dairy products including Kariesh cheese, Zabady, Laban Rayeb and Ras cheese. Out of these suspected LAB cultures, 123 and 27 isolates were identified as potential LAB cocci and lactobacilli, respectively. These 150 LAB isolates were further examined for their ability to produce exopolysaccharides (EPS) in milk. Only 7LAB isolates were found to produce EPS. These isolates were cultured form Laban Rayeb (3 isolates) and Zabady (4 isolates). A PCR identification procedure was carried out to identify these EPS-producing isolates to the species level. All the 7 isolates were found to belong to Streptococcus thermophilus. These results generally suggest the possibility of using Egyptian dairy products as a source of EPS-producing LAB.

DOI

10.21608/jfds.2011.81941

Keywords

lactic acid bacteria, Exopolysaccharides, Streptococcus thermophilus

Authors

First Name

Asmaa

Last Name

El-Awady

MiddleName

A.

Affiliation

Food Safety and Microbial Physiology Laboratory, Dairy Department, Faculty of Agriculture, Mansoura University

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First Name

M.

Last Name

Zien El-Din

MiddleName

M.

Affiliation

Faculty of Tourism and Hotels, Mansoura University.

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Orcid

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First Name

W.

Last Name

El-Sharoud

MiddleName

M.

Affiliation

Food Safety and Microbial Physiology Laboratory, Dairy Department, Faculty of Agriculture, Mansoura University

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Volume

2

Article Issue

4

Related Issue

12343

Issue Date

2011-04-01

Receive Date

2020-04-12

Publish Date

2011-04-01

Page Start

175

Page End

182

Print ISSN

2090-3650

Online ISSN

2090-3731

Link

https://jfds.journals.ekb.eg/article_81941.html

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https://jfds.journals.ekb.eg/service?article_code=81941

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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