The invention relates to a method for preparing textured wheat
protein by twin-screw
extrusion. The specific steps are: add powdered wheat
protein and
starch into the mixing mixer and mix well; add the mixture into the
solid feeder of the high-torque twin-screw
extrusion system and mix well again, and then add the high-torque twin-screw
extrusion Extrusion in the
machine;
cut, dry, and cool the extruded product to prepare a textured wheat
protein product; its
moisture content is ≤13%,
expansion rate is ≥1.20, rehydration rate is ≥190%,
water holding rate is ≥180%, After rehydration, the product has a
hardness of 7.00-12.50 kg, an elasticity of 0.500-0.750, a
chewiness of 2200-3550, an adhesiveness of -65.00- -17.50 g·sec, and a texture degree of ≥2.0. The invention has stable
processing process, simple operation and low
processing cost; the produced textured wheat protein product is rich in
nutrition, easy to digest, long in quality, good in cooking and
processing stability, makes reasonable use of wheat protein resources, and increases the additional value of wheat protein products. value.