Fig. 7From: Relative abundance of the Prevotella genus within the human gut microbiota of elderly volunteers determines the inter-individual responses to dietary supplementation with wheat bran arabinoxylan-oligosaccharidesCorrelation between the proportional abundance of Bacteroides and Prevotella spp. and propionate (%) during washout, maltodextrin and AXOS supplement periods for the (a) Prevotella-plus group and (b) Prevotella-minus group, (c) the correlation between proportional abundance of Prevotella spp. % and propionate concentration (mM) (p < 0.0001) and (d) the correlation between proportional abundance of Prevotella spp. % and total SCFA concentration (mM) (p < 0.0001)Back to article page