Application of KLDS 1.1105 Postbiotics for Resisting Pathogenic Bacteria Infection in the Intestine.

Postbiotics, defined as metabolites produced by probiotics, encompass both bacterial cells and their metabolic byproducts, and offer significant health benefits to the host. However, there are relatively few reports on their effects on intestinal microbiota. In this study, we investigated the components, total antioxidant capacity of postbiotics () and their impact on intestinal flora using the Simulator for Human Intestinal Microecology Simulation (SHIME). The results indicate that the primary components of postbiotics include polysaccharides, proteins, and organic acids. Furthermore, have a strong ability to inhibit the growth of harmful bacteria while promoting the growth of probiotics. Additionally, significantly increased the total antioxidant capacity in the intestine and regulated the balance of intestinal microbiota. Notably, there was also a significant increase in the content of short-chain fatty acids (SCFAs) in the intestine. Overall, have the potential to aid in the prevention and treatment of diseases by enhancing gut microbiology.