Study on Rheological Properties of Corn Starch Hydrolysis Products

The rheological properties of the starch hydrolysis products were researched by rotational viscometer,and the influences of temperature,holding time,the contents of starch and the contents of cross-linking or amylase on its rheological properties were investigated.The results indicated that starch hydrolysis products were in accordance with the characteristics of pseudoplastic fluid with shear thinning.The apparent viscosity increased with reducing of the temperature of the starch pastes under the identical sheer rate.At the same time and the temperature conditions,the apparent viscosity reduced gradually following by extension of hold time or increasing the contents of amylase,but the apparent viscosity increased with the contents of starch or contents of cross-linking.