Exopolysaccharides from camel milk-derived Limosilactobacillus reuteri C66: Structural characterization, bioactive and rheological properties for food applications

A. K.M.Humayun Kober, Mohamed Abdin, Athira Subhash, Shao Quan Liu, Enes Dertli, Basim Abu-Jdayil, Pau Loke Show, Mutamed Ayyash

Research output: Contribution to journalArticlepeer-review

Abstract

Microbial exopolysaccharides (EPS) are valued as safe, functional bio-ingredients in food. Produced by microorganisms like lactic acid bacteria (LAB), they enhance the rheological and sensory properties of food products. In this study, Limosilactobacillus reuteri C66 (EPS-C66), was utilized to produce EPS. EPS-C66 was isolated, purified, and characterized for its rheological properties and biofunctionalities. Molecular weight was 3.7 × 105 Da. Three monosaccharides (arabinose, mannose, and glucose) were identified. At 10 mg/mL, EPS-C66 exhibited significant scavenging activity against DPPH and ABTS radicals, achieving 67.9 % and 31.3 %, respectively. Additionally, it reduced the viability of Caco-2 and MCF-7 cancer cells by 93.7 % and 61.4 %, respectively. EPS-C66 also demonstrated antibacterial effects against S. aureus, S. typhimurium, L. monocytogenes, and E. coli, with ranges of 5.9, 6.1, 6.0, and 5.7 log CFU/mL, respectively. The current study highlights that EPS-C66 can enhance the health benefits and rheological properties of foods, contributing to the development of novel functional foods.

Original languageEnglish
Article number102164
JournalFood Chemistry: X
Volume25
DOIs
Publication statusPublished - Jan 2025

Keywords

  • ACE-inhibition
  • Antioxidants
  • Exopolysaccharides
  • Limosilactobacillus reuteri
  • Rheological properties

ASJC Scopus subject areas

  • Analytical Chemistry
  • Food Science

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