Simulated digestion and fermentation in vitro by human gut microbiota of intra- and extra-cellular polysaccharides from Aspergillus cristatus

Fuzhuan brick tea is characterized in unique “golden flower” of Aspergillus cristatus. However, little information is available for intra- and extra-cellular polysaccharides from A. cristatus (IPS and EPS, respectively). Therefore, simulated digestion and fermentation in vitro were carried out to investigate whether IPS and EPS could be broken down in digestive system. Furthermore, their interactions with gut microbiota were investigated. It was...