Analyzing quality characteristics of texturized vegetable protein using defatted soy flour with rice flour and rice starch

Abstract

This study analyzed the quality of texturized vegetable protein (TVP) made from defatted soy flour combined with flour or starch from rice sources. The base raw material formulation consisted of 50% soybean protein, 30% gluten, and 20% rice flour and rice starch. A cooling die-equipped extruder was used with a barrel temperature of 190°C and screw rotation speed of 250 rpm. The hardness and cutting strength of the extruded TVP were found to be higher for white rice than for glutinous rice and higher for flour than for starch. Gumminess and chewiness were similar across rice types, but higher for flour than for starch. White rice TVP had a lower water absorption capacity than glutinous rice TVP. Turbidity was lowest for white rice flour and highest for corn starch. Using rice flour instead of starch in TVP production can simplify processing and contribute to promoting the consumption of rice.