Fig. 4From: The effect of in vitro simulated colonic pH gradients on microbial activity and metabolite production using common prebiotics as substratesThe influence of colonic pH on metabolite production (in mmol per gram of substrate) after 24 h of fermentation. A-F represents total SCFA, acetate, propionate, butyrate, formate, and lactate production, respectively. A t-test was applied to determine the influence of pH on metabolite production with a single substrate or differences in metabolite production between substrates. Benjamin-Hochberg FDR (false discovery rate) correction was adopted for multiple testing. Significant differences between changed colonic pH are labelled with * (p < 0.05), ** (p < 0.01) and *** (p < 0.001), respectivelyBack to article page