Fig. 3From: Fecal fermentation characteristics of Rheum tanguticum polysaccharide and its effect on the modulation of gut microbial compositionsource supplement); INULIN, the positive control (INULIN supplement); RPI, the experimental group (RPI supplement)Rarefaction curves (A), Shannon indexes (B), and principal component analysis (C) of gut microbiota of the sample at the fermented time point of 48Â h. BLANK, the blank control (no additional carbon Back to article page