Abstract
This current research studies the physicochemical properties and in particular rheological behavior of three Gaz-angubin samples collected from central Iran against fructose solutions using NMR spectrometry, differential scanning calorimetry, X-ray diffraction, and rotational viscometery (in a wide range of concentrations (0.05–0.8g/mL) at different temperatures, by comparing their viscosities and shear rate-shear stress curves). For aqueous solutions up to the concentration of 0.4 g/mL, all three Gaz-angubin samples were similar to the corresponding fructose solutions in terms of rheological behavior (Newtonian) and their viscosity level. Comparison of fructose and Gaz solutions shows that at concentrations of 0.5g/mL and above, viscosity of Gaz solutions was much higher than that of fructose solutions. This difference was more obvious at higher concentrations (0.6–0.8 g/mL). Above the concentration of 0.5 g/mL, the Gaz-angubin solutions showed a non- Newtonian shear thinning flow behavior.
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