fecal fermentation profiles and microbiota responses of pulse cell wall polysaccharides: enterotype effect.

The gut microbiota community of individuals is predominated by diverse fiber-utilizing bacteria, and might have distinct fermentation outcomes for a given dietary substrate. In this research, we isolated pea cell walls (PCWs) from cotyledon seeds, and performed the fecal fermentation by individual - and -enterotype inocula. The -enterotype inoculum showed a higher fermentation rate and produced more short-chain fatty acids (SCFAs), especially propionate and butyrate, throughout the entire fermentation period from PCW degradation compared with the -enterotype one. Furthermore, the better monosaccharide utilization capacity of -enterotype inoculum was shown, compared to the -enterotype inoculum. PCW fermentation with - and -enterotype inocula resulted in different microbial changes, and the abundance of and was promoted, respectively. These results may contribute to predicting the responses of and enterotypes to diets and offer useful information in personalized nutrition.