In order to improve the coarse taste of dietary fiber and enhance its characteristics, in the present study, Phyllostachys praecox dietary fiber (PPDF) from bamboo shoots was treated by heavy pressure grinding, jet milling and ordinary grinding, yielding three powders: Z-PPDF, M-PPDF and C-PPDF, respectively. Our aim was to explore the effects of different ultrafine grinding treatments on the structure, physicochemical properties of dietary fiber and on its ability to bind cholesterol, sodium cholate and nitrite. The results showed that compared with C-PPDF, the particle size of Z-PPDF and M-P...