Effect of a hydroacoustic treatment in a rotary-pulsation apparatus on the state of starch suspensions and rheological properties of hydrogels produced from these suspensions was studied. It was found that mechanical treatment of suspensions in a wide range of parameters (concentration of the solid phase and treatment duration) leads to a substantial increase in the viscosity and flow point of the resulting hydrogels. It was confirmed that one of reasons for this effect is the mechanically activated extraction of natural impurities in starch. The critical values of the suspension treatment parameters were determined, above which the gel-forming properties of starch are deteriorated.
