Rheological Properties of Rice Starch at High Moisture Contents during Twin-screw Extrusion

摘要: A semi-empirical model to predict the apparent viscosity function of high moisture rice starch melt was developed. The coupled influence extruder operating parameters on characteristics fluid and conditions rheological measurements. for considered power law dependency shear rate, exponential temperature, content, screw speed. MPC/V-30 co-rotating twin-screw a slit die/torque rheometer combination were used. Operating varied between 175 275 rpm speed, 80 100 °C die temperatures, 570 650 g/kg solution 2 7 kg/h mass flow rate. fit experimental results good. Die temperature most important parameter influencing during extrusion.