“…Separate attachments have been employed to measure the dough rheology of wheat, corn, and soybeans using straight tube viscometers (Harper, Rhodes, & Wanniger, ), cylindrical dies of different lengths (Harmann & Harper, ), capillary die rheometers (Singh & Muthukumarappan, ,b), and viscoamylographs (Remsen & Clark, ) attached to food extruders. Not only the feed material but the quality of extrudates depends on the type of extruder used, choice of screw configuration, moisture content of the feed, temperature profile in the barrel and die, and screw speed (Singha & Muthukumarappan, ).…”