Abstract
The permeability of water-insoluble dietary fiber from cabbage and bamboo shoots to authentic dextrans and maltodextrins was investigated by gel-filtration chromatography. Maltodextrins having a molecular weight of less than about 2.0×103 completely permeated into the pores of the Wall matrix in the dietary fiber. In addition, the influence of different levels of this water-insoluble dietary fiber on glucose diffusion speed was examined. The glucose diffusion speed decreased as the concentration of the dietary fiber increased. This was considered to be due to the permeability of the water-insoluble dietary fiber to lower-molecular-weight carbohydrates.
