Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(7): 3975-3980
DOI: https://doi.org/10.20546/ijcmas.2017.607.411


Isolation and Screening of Lactic Acid Bacteria for Acidic pH and Bile Tolerance
A.S. Noor Nawaz1*, K.S. Jagadeesh1 and P.U. Krishnaraj2
1Department of Agricultural Microbiology, Agriculture College,Dharwad-580 005, Karnataka, India
2Department of Agricultural Microbiology, Agriculture College, Vijayapura-586 101,Karnataka, India
*Corresponding author
Abstract:

As many as 25 lactic acid bacterial strains were isolated from various sources. These isolates were investigated for their tolerance to low pH (3.0, 4.0 and 5.0) and different bile concentrations (0.3 %, 0.4 %, 0.75 % and 1.0 %). Among 25 isolates, strain 42, 45 and 48 showed very high tolerance to acidic pH and the same isolates also tolerated high level of bile salt concentration up to 1.0 per cent. Thus, high resistance to low pH values and to higher concentrations of bile salts enables these strains to survive in the stomach and intestinal environment and to colonize the gut of the host, possess a promising probiotic potential. Hence, these isolates hold potential to be used as probiotics.


Keywords: Lactic acid bacteria, Isolates, Probiotics,Acid tolerance,Bile tolerance.
Download this article as Download

How to cite this article:

Noor Nawaz, A.S., K.S. Jagadeesh and Krishnaraj, P.U. 2017. Isolation and Screening of Lactic Acid Bacteria for Acidic pH and Bile Tolerance.Int.J.Curr.Microbiol.App.Sci. 6(7): 3975-3980. doi: https://doi.org/10.20546/ijcmas.2017.607.411