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In Vitro Evaluation of Probiotic Properties of Lactobacillus plantarum UBLP40 Isolated from Traditional Indigenous Fermented Food

  • 2021-03-24
  • Probiotics and Antimicrobial Proteins 13(5)
    • J. Ahire
    • C. Jakkamsetty
    • M. Kashikar
    • S. Lakshmi
    • R. Madempudi

Abstract

In this study, traditional indigenous fermented food isolate Lactobacillus plantarum UBLP40 was screened for in vitro probiotic properties, antibiotic susceptibility, hemolytic activity, production of lactic acid, hydrogen peroxide, bile salt hydrolase and phytase, and antioxidative activity. Results showed that Lact. plantarum UBLP40 can survive simulated gastrointestinal conditions, adhere to mucin, possess a hydrophobic cell surface, ability to auto-aggregation, and possessed antimicrobial activity against Micrococcus luteus MTCC 106, methicillin-resistant Staphylococcus aureus subsp. aureus ATCC® BAA-1720, Pseudomonas aeruginosa MTCC 1688, and Escherichia coli MTCC 1687. Lact. plantarum UBLP40 produced 48.59 U/mg phytase and 1.78 ± 0.01 gm % lactic acid and showed the ability to produce hydrogen peroxide and bile salt hydrolase. Moreover, the usual antibiotic susceptible profile and non-hemolytic activity indicated the safety of the strain. The intracellular extract of UBLP40 showed 13.8 ± 1.4% (equivalent to ~8 µM butylated hydroxytoluene) α,α-diphenyl-β-picrylhydrazyl (DPPH) radical scavenging activity, reducing activity equivalent to 1 µg L-cysteine, Fe2+ chelation equivalent to 5 µM ethylenediaminetetraacetic acid, and exhibited 17.73 ± 4.40 µM glutathione per gram of protein. In conclusion, this study demonstrates that Lact. plantarum UBLP40 is a potential probiotic candidate.

Keywords: Antioxidant; Bile salt hydrolase; Glutathione; Lactobacillus plantarum UBLP40; Phytase; Probiotic.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Lactobacillus plantarum KABP™-061Absence of Hemolytic ActivityBeneficial
Moderate
Lactobacillus plantarum KABP™-061Enhanced Antimicrobial ResistanceBeneficial
Moderate
Lactobacillus plantarum KABP™-061Enhanced Antioxidant ActivityBeneficial
Moderate
Lactobacillus plantarum KABP™-061Improved Survival in Gastrointestinal ConditionsBeneficial
Large
Lactobacillus plantarum UALp-05Improved Probiotic PropertiesBeneficial
Large
Lactobacillus plantarum UALp-05Increased Antioxidant ActivityBeneficial
Moderate
Lactobacillus plantarum UALp-05Safety for ConsumptionBeneficial
Large
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