Goji berry polysaccharide can enhance intestinal microbiota and beneficial bacteria levels, whilst modulating the innate immune response.
The study used both in vitro and in vivo methodologies to evaluate the prebiotic effect of Lycium barbarum polysaccharide (LBP), and its potential impact on the composition of fecal microbiota and the innate immune response. In vitro studies showed that LBP supported the growth of selective probiotic bacteria. For the in vivo portion of the study, mice were given LBP, and subsequent alterations in their fecal microbiota were observed.
The results demonstrated that the administration of LBP significantly increased the abundance of certain beneficial bacteria within the mice's intestinal microbiota. Specifically, the presence of Proteobacteria and Firmicutes were enhanced, while the ratio of Bacteroidetes was reduced. At the genus level, the presence of potentially probiotic genera like Akkermansia, Lactobacillus, and Prevotellaceae increased. It was also observed that the concentrations of TGF-β and IL-6 in serum and sIgA in colon content significantly heightened. The study also noted a significant difference in the thymus and spleen indices of mice treated with LBP when compared to a control group.
