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Probiotic functional attributes of lactic acid bacteria from indigenously fermented milk product kalarei

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Title Probiotic functional attributes of lactic acid bacteria from indigenously fermented milk product kalarei
 
Creator Bangotra, Ridhika
Kour, Bhavneet
Bajaj, Bijender Kumar
 
Subject Antioxidant activity
Fermented foods
Gastrointestinal juice
Phenol tolerance
 
Description 546-557
Immense variations among probiotics for health promoting effects have motivated the research impetus on
bioprospecting of new/novel probiotic strains from exotic sources. In the current study, we isolated 20 lactic acid bacterial
(LAB) strains from indigenous fermented milk food (kalarei) and evaluated their survival in simulated gastrointestinal juice
(GIJ) and functional properties. Six LAB isolates showed high viability (94-99%; log cfu/mL 9.01-11.10). The phenol
tolerance assay showed that isolates BK1 and BK2 had high viability of 91.15% and 90.32%, respectively. However, other
isolates have shown moderate phenol tolerance (viability 53-82%). The selected LAB isolates were screened for probiotic
functional attributes viz. hydrophobicity, autoaggregation and coaggregation. Results revealed that the selected LAB isolates
had efficient adhesion ability, autoaggregation and coaggregation ability. Additionally, LAB isolates were investigated for
antibiotic susceptibility and antioxidant potential. For ABTS radical scavenging assay, the highest antioxidant activity was
shown by isolate BK2 (90.60%), while for DPPH radical scavenging assay, the highest antioxidant activity was shown by
BK1 (89.32%). The isolates BK1 and BK2 which have shown promising probiotic functional attributes were identified
based on 16S rDNA sequencing as the strains of Lactiplantibacillus plantarum and designated as L. plantarum BK1
OQ927190 and L. plantarum BK2 OQ927187, respectively.
 
Date 2023-06-30T05:37:07Z
2023-06-30T05:37:07Z
2023-06
 
Type Article
 
Identifier 0975-1009 (Online); 0019-5189 (Print)
http://nopr.niscpr.res.in/handle/123456789/62212
https://doi.org/10.56042/ijeb.v61i07.3116
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEB Vol.61(07) [July 2023]