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The search for novel exopolysaccharides (EPS) with targeted functionalities is currently a topic of great interest. This study aimed to investigate the chemical characteristics and technological properties of a novel EPS (named EPSO) from Leuconostoc mesenteroides. EPSO was a high-molecular-weight dextran (>6. 68 × 105 g/mol) characterized by high water-holding capacity (785 ± 73%) and high water solubility index (about 99%). EPSO in water (30 mg/mL, it formed weak gels. Notably, lower concentrations (4–5 mg/mL) exhibited antimicrobial activity against various foodborne pathogens, antibiofilm activity against Listeria monocytogenes, and radical-scavenging activity. These properties are significant for maintaining food quality and promoting health. Based on these findings, EPSO presents itself as a promising food ingredient that could elevate food quality and confer health benefits to consumers.
Bisson et al. (Wed,) studied this question.