Screening of highly-adhesive Lactobacillus and the relationship between adhesion force and non-specific interaction force

  • DU Lei ,
  • LI Haitian ,
  • WU Xiaolong ,
  • ZHANG Yuan ,
  • HAN Jianchun
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  • 1(Collage of Food Science, Northeast Agricultural University, Harbin 150030, China)
    2(Harbin New Area New Quality Productivity Promotion Center, Harbin 150023, China)

Received date: 2025-01-02

  Revised date: 2025-05-02

  Online published: 2026-01-12

Abstract

Adhesion capacity is one of the essential prerequisites for Lactobacillus strains to colonize the intestine and exert their functional properties, and non-specific interactive forces serve as the primary driving forces during the initial phase of bacterial adhesion.This study aims to investigate the correlation between adhesion capacity and non-specific interactions (including auto-aggregation ability, hydrophobic interactions, and electrostatic interactions) in Lactobacillus strains and screen high-adhesion lactobacilli for potential probiotic applications.First, the digestive stress tolerance of 47 Lactobacillus strains isolated from Northeastern sauerkraut to digestive stress was evaluated through in vitro simulated continuous digestion (saliva-gastric-intestinal fluid) stress experiments.Their adhesion capacity to intestinal mucin and Caco-2 cells was also evaluated.Finally, the correlation between the adhesion ability of Lactobacillus and non-specific interaction force was analyzed.The results showed that 47 Lactobacillus strains were isolated from sauerkraut, of which 12 digestion-resistant strains and Lacticaseibacillus rhamnosus GG demonstrated significant positive correlations between their surface properties (auto-aggregation capacity, surface hydrophobicity, and positive charge potential) and adhesion capabilities.Lactiplantibacillus plantarum HS-P5, Lacticaseibacillus paracasei LP-112, LP-116, and LP-121 showed excellent digestion tolerance and adhesion capacity.This study presents a comprehensive evaluation strategy to optimize adhesion screening processes through the analysis of Lactobacillus surface properties, thereby enriching the repertoire of highly adhesive strains and providing broader alternatives for probiotic product development.

Cite this article

DU Lei , LI Haitian , WU Xiaolong , ZHANG Yuan , HAN Jianchun . Screening of highly-adhesive Lactobacillus and the relationship between adhesion force and non-specific interaction force[J]. Food and Fermentation Industries, 2025 , 51(24) : 261 -268 . DOI: 10.13995/j.cnki.11-1802/ts.042023

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