Abstract: Instantaneous high pressure (IHP) was used to modify the physical properties of soybean dregs dietary fiber. Soybean dregs was diposed by enzyme to produce dietary fiber without most protein. The dietary fiber was then processed by the Microfluidizer, which is the basic equipment of IHP operation. The water retention capacity, swelling capacity and water combining capacity of DF products were higher. Broolfield programmable rheometer was used to determine the viscosity of the DF solution, the time sensitivity, speed sensitivity and temperature sensitivity were studied.

Key words: soybean dregs, dietary fiber, Microfluidizer, IHP