Effect on the Structure, Physicochemical Properties and Functional Properties of Insoluble Dietary Fiber from Soybean Residue by Modification Methods

To investigate the effects of different modification methods on the structure, physicochemical and functional properties of soybean residue insoluble dietary fiber (SIDF), high-speed shear, compound enzymatic digestion and the combination of the two methods were used to modify SIDF. The structural, physicochemical and functional properties of SIDF were characterized by particle size, Fourier transform infrared (FTIR) spectroscopy, water holding capacity (WHC), oil holding capacity (OHC), swelling capacity (SC) and cation exchange capacity. Results showed that the particle size of modified SIDF was significantly reduced (P