Tea processing shapes the structural characteristics and gut microbiota-modulating potential of polysaccharides from the fresh summer tea.
In this study, fresh summer tea leaves from the same cultivar and batch were processed into green, black, and dark (post-fermented) teas, and the corresponding polysaccharides (GTP, BTP, DTP) were subsequently extracted. Their digestive stability and gut microbial fermentability were evaluated. Simulated digestion of p...