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194809

Isolation, Characterization and Identification of Lactic Acid Bacteria as Probiotic

Article

Last updated: 04 Jan 2025

Subjects

-

Tags

Microbiology

Abstract

Lactic acid bacteria that grow as the adventitious microflora of foods or that are added to foods as cultures are generally considered to be harmless or even an advantage for human health. The objective of this study was to isolate, screen and identify lactic acid bacteria from different sources. As well, evaluate the more potent lactic acid bacteria isolates for their probiotic characteristics. Ninety-six bacterial isolates were isolated from different 18 sources, 51 (53%) isolates were able to hydrolyze 0.5% bile salts while 28 isolates were able to hydrolyze 1% bile salts. Also, only 11 isolates were able to tolerate 2% bile salts after 6h incubation periods. On the other hand, lactic acid bacteria isolates were able to survive at pH 1.5 and 3.0 as well 8.0. Also, these isolates were potent for cholesterol assimilation, NaCl tolerance, exopolysaccharides production, antioxidant activity. Lactic acid bacteria isolate MS87 that exhibited excellent probiotic characteristics was identified using 16S rRNA sequence as Pediococcus pentosaceus. This study led to suggest that environmental-derived lactic acid bacteria-strains could be used as a potential source of probiotic.

DOI

10.21608/assjm.2021.194809

Keywords

lactic acid bacteria, probiotics, bile salts tolerance, Antibiotic sensitivity, Cholesterol assimilation

Authors

First Name

Abou-Aly

Last Name

Hamed E.

MiddleName

-

Affiliation

Fac. of Agriculture, Benha University, Egypt

Email

haboualy@fagr.bu.edu.eg

City

-

Orcid

0000-0001-5051-6986

Volume

59

Article Issue

5

Related Issue

26490

Issue Date

2021-04-01

Receive Date

2021-09-15

Publish Date

2021-04-01

Page Start

311

Page End

322

Print ISSN

1110-0419

Online ISSN

2974-4830

Link

https://assjm.journals.ekb.eg/article_194809.html

Detail API

https://assjm.journals.ekb.eg/service?article_code=194809

Order

43

Type

Original Article

Type Code

841

Publication Type

Journal

Publication Title

Annals of Agricultural Science, Moshtohor

Publication Link

https://assjm.journals.ekb.eg/

MainTitle

Isolation, Characterization and Identification of Lactic Acid Bacteria as Probiotic

Details

Type

Article

Created At

22 Jan 2023