The rheological behavior of invert liquid sucrose with two different percentages of inversion (59.68% and 89.88%) was studied from 17°C to 65°C using a concentric cylinders rheometer. The results showed that the invert liquid sugar exhibits Newtonian behavior within the range of temperature tested. The effect of temperature on viscosity of invert sugar was expressed by the Arrhenius relationship and the fitted models presented correlation coefficients (R²) greater than 0.99. The activation energies calculated for both samples, 59.68% and 89.88% of inversion, were respectively 70.5kJ.mol-1 and 86.5kJ.mol-1.
invert liquid sugar; rheology; Newtonian liquid; viscosity
