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360538

Probiotic Lactic acid bacteria: A Promising alternative approach to control human threats

Article

Last updated: 24 Dec 2024

Subjects

-

Tags

Biotechnology

Abstract

The valuable effects of viable probiotic bacteria as dietetic supplements have gained massive research note, Lactobacillus spp. with probiotic properties are extensively used to prepare dairy products such as yoghurts, Cheese etc. The target of the present study is to assess LAB species with prospective activities, 22 samples of fermented food samples were collected from local markets of Giza for isolation of probiotic microbes. From the samples, 10 LAB strains were isolated, promising isolates were selected by primary screening as potential probiotics with antimicrobial activity against bacterial pathogens. Selected LAB isolates were in vitro characterized for their probiotic pattern and antimicrobial activities against pathogens. Isolates were found to be resistant to NaCl% (6%), bile salt% (0.5%) and exhibited respectable growth in the acidic condition, while highest growth was noted at pH around 6.0. The most potent LAB isolate was exhibited antimicrobial activity against 4 different test pathogens with inhibition zone diameter (24-32) mm. Additionally, the MIC of the same isolate was (1.5-3 mg/ml) which is considerable result when compared to studies of the same field. Organic acids production with quantity of 0.76% are found to be responsible for antimicrobial activity. Also, the isolates showed remarkable aggregation and hydrophobicity properties. According to the results, selected LAB isolates (Y2c) were believed to be potential probiotic bacteria. Subsequently, identification of the Y2c isolate conventionally and genetically revealed that it is found to be Limosilactobacillus fermentum and has been registered in GenBank under Limosilactobacillus fermentum strain HwOs.

DOI

10.21608/ajar.2024.246914.1291

Keywords

probiotics, Antimicrobial, activity

Authors

First Name

Osama

Last Name

Ibrahim

MiddleName

M.

Affiliation

Al-Azhar University, Faculty of Science, Botany and Microbiology Department, Cairo, Egypt

Email

drossamamohammed@gmail.com

City

-

Orcid

-

First Name

Ahmed

Last Name

El-Hawary

MiddleName

S.

Affiliation

Al-Azhar University, Faculty of Science, Botany and Microbiology Department, Cairo, Egypt

Email

ahmed88@yahoo.com

City

-

Orcid

-

First Name

Moataz

Last Name

El-Sehrawy

MiddleName

H.A.

Affiliation

Al-Azhar University, Faculty of Science, Botany and Microbiology Department, Cairo, Egypt

Email

maogf@gmail.com

City

-

Orcid

-

First Name

Mahmoud

Last Name

Ismail

MiddleName

K.A.

Affiliation

Al-Azhar University, Faculty of Science, Botany and Microbiology Department, Cairo, Egypt

Email

kotob55@yahoo.com

City

-

Orcid

-

Volume

49

Article Issue

1

Related Issue

48505

Issue Date

2024-06-01

Receive Date

2023-11-06

Publish Date

2024-06-01

Page Start

95

Page End

107

Print ISSN

1110-1563

Online ISSN

2786-0051

Link

https://ajar.journals.ekb.eg/article_360538.html

Detail API

https://ajar.journals.ekb.eg/service?article_code=360538

Order

10

Type

Original Article

Type Code

929

Publication Type

Journal

Publication Title

Al-Azhar Journal of Agricultural Research

Publication Link

https://ajar.journals.ekb.eg/

MainTitle

Probiotic Lactic acid bacteria: A Promising alternative approach to control human threats

Details

Type

Article

Created At

24 Dec 2024