Concentration and Temperature Dependence of Flow Behavior of Xanthan Gum Dispersions |
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| Authors: | R A SPEERS M A TUNG |
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| Affiliation: | Authors Speers and Tung are with the Dept. of Food Science, Univ. of British Columbia, Suite 248 - 2357 Main Mall, Vancouver, B.C. Canada V6T 2A2 |
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| Abstract: | Apparent viscosities of xanthan gum dispersions over shear rates of 0.5–3000s?1 were studied at concentrations of 0.05–1.00% (w/w) and temperatures of 5–45°C. All dispersions were shear rate thinning non-Newtonian fluids described accurately by the power-law model. The logarithm of viscosity varied with the logarithm of concentration and the reciprocal of absolute temperature. A combined model was derived to describe the variation of viscosity with shear rate, concentration and temperature for aqueous dispersions of xanthan gum. |
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