Fermented egg milk beverage alleviates DSS-induced colitis in mice through modulation of intestinal flora and supplement of short-chain fatty acids

Fermented egg milk beverage (FEMB) can alleviate the symptoms of intestinal diseases by regulating intestinal flora and supplying nutrition. This study was investigated in the protective effect of fermented egg milk beverage (FEMB) on dextran sulfate sodium (DSS) induced ulcerative colitis (UC) mice. The results showed that FEMB eased the pathological abnormalities and colonic inflammation of UC mice, restructured the intestinal flora composition simultaneously. After FEMB treatment for 14 days, the body weight of the mice rose and disease activity index (DAI) decreased, the length and form of colon in UC mice restored notably, inflammatory cells were decreased or disappeared, globel cells and crypt were enriched and modified. 16S rRNA gene sequencing results demonstrated that FEMB treatment can increase the abundance of beneficial bacteria in the cecum content of mice, including unclassified_f_Lachnospiraceae and Lactobacillus. Besides, probiotics that can increase the content of short-chain fatty acids (SCFAs) may also contribute to inflammation alleviation. An increasing of amino acid, which may beneficial to nutritional supplement, was observed in our experiment. In conclusion, FEMB treatment can alleviate the damage of DSS-induced colitis in Balb/c mice, this study provides theoretical basis of inflammation relief and application of probiotics in fermented egg milk beverages.