The low viscosity of RS compared to other native starches (corn, rice, potato, wheat, and tapioca) may result from the modified structure that is more shear resistant than native starches (Jun, Lee, Lee, & Lee, 2014). The reasons for low viscosity of HP treated RS/LBG mixtures are not fully known, but one explanation could be that higher amylose content of RS somehow, stabilizes the structure under pressure. It could be concluded that the rheological behavior of RS/LBG mixtures (HP treated and untreated) was less pressure-dependent but greater gum concentration-dependent.