Wild sage seed is a novel source of hydrocolloid which has a good commercialized potential. The rheological characterization of hydrocolloid solutions under different concentration (1, 1.25, 1.5, 1.75 and 2%w/v) and temperature (15, 25, 35 and 45°C) were modeled by several models such Bingham, Power law, Casson and Vocadlo. R2 and RMSE analysis showed good agreement for all four models applied in this study. The hydrocolloid exhibited non-Newtonian, pseudoplastic behaviour at all temperatures and concentrations.The power law model was chosen as the best model and used to evaluate the temperature and concentration effect. Effect of concentration and temperature on the flow behaviour indices, n, was insignificant. An increase in concentration increased the consistency coefficients; k and increasing temperature decreased the consistency coefficient. The temperature effect was described using Arrhenius equation and as the gum concentration increased the activation energy (Ea) decreased.

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