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RHEOLOGICAL MODEL OF SOY DOUGH IN EXTRUSION
ABSTRACT
A viscosity model of defatted soy dough under various conditions of shear rate, temperature and moisture level in the extrusion process is reported. The model represents the data well within the shear rate range of 50 to 1,000 s−1, the temperature range of 100 °C to 160 °C, and the added moisture range of 22% to 32%. The flow index is determined to be 0.127, and response surfaces of the viscosity are also presented.
