Physiological Changes of Surface Membrane in Lactobacillus with Prebiotics.

Area of Science:

• Microbiology
• Gastroenterology
• Nutritional Science

Background:

• Synbiotics, combinations of probiotics and prebiotics, are recognized for modulating the gut environment.
• Understanding the synergistic effects of synbiotics over individual components is crucial for optimizing gut health interventions.

Purpose of the Study:

• To investigate the superior efficacy of synbiotics compared to individual probiotics or prebiotics.
• To evaluate the impact of different prebiotics on the adhesion and surface properties of specific Lactobacillus strains.

Main Methods:

• Four prebiotics (fructo-oligosaccharides, raffinose, inulin, cellobiose) were combined with two Lactobacillus strains (L. paracasei 276, L. plantarum WCFS1).
• Evaluated auto-aggregation, membrane hydrophobicity, and adhesion to Caco-2 cells.
• Utilized Fourier-transform infrared spectroscopy (FT-IR) to analyze surface structure changes.

Main Results:

• Both Lactobacillus strains showed significantly higher adhesion to Caco-2 cells with cellobiose compared to other prebiotics (23.31% and 16.85%).
• Intestinal adhesion correlated positively with auto-aggregation, which was also enhanced by cellobiose.
• FT-IR analysis supported observed changes in bacterial surface properties.

Conclusions:

• Cellobiose demonstrates a dominant prebiotic effect, significantly enhancing the adhesion and auto-aggregation of tested Lactobacillus strains.
• Synbiotic formulations incorporating cellobiose show potential for improved gut health modulation.
• Specific prebiotic structures influence probiotic behavior and gut interaction.