Molecular characterization and hypoglycemic activity of a novel water-soluble polysaccharide from tea (Camellia sinensis) flower

► The resources of tea (Camellia sinensis) flower is abundant with the low utilization. ► The molecular characterization of tea flower polysaccharide (TFP) were investigated with instrument analysis techniques of biomacromolecular. ► TFP fraction presented dose dependent inhibitory effects against α-glucosidase and α-amylase in vitro assay systems. ► TFP fraction caused a significant decrease in blood glucose levels of diabetic mice.