The effect of concentration of carbohydrates on viscoelastic properties of corn and rice starch is discussed in this paper. The texture of starch pastes was estimated using a fractional rheological linear standard solid model. Rheological parameters of the model were identified and their changes for different values of sugar concentrations in the 2 tested starches were discussed.
Practical application: The fractional rheological models can be very useful to control the biomaterial texture for the needs of final product, which is particularly significant from the point of view of materials engineering. The proposed method for interpretation of the results of rheological measurements of these pastes allows for a comprehensive estimation of the analyzed biomaterial texture.
Keywords: corn starch; fractional linear standard solid model; rice starch; sugar; viscoelastic behavior.
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