Health‐promoting effects of dietary polysaccharide extracted from Dendrobium aphyllum on mice colon, including microbiota and immune modulation

Summary The health‐promoting effects of a polysaccharide ( DAP ) purified from Dendrobium aphyllum , on mice colon were investigated. The results indicated that consumption of DAP facilitated the differentiation degree of CD 4 + T cells to Th 1 , Th 17 and Treg cells; and depressed the differentiation degree to Th 2 cells, since DAP up‐regulated IL ‐6 expression (from 1.08 ± 0.24 to 3.40 ± 0.36). Besides, oral administration of DAP reduced the...