摘要：Rheological properties of prickly pear juice fruit of cactus ( Opuntia ficus indica ) and impacts of temperature, shearing rate and pH value on its viscosity were studied using a rotational concentric cylinders viscometer. The results show that the viscosity of prickly pear juice decreases with the increase of its temperature and shearing rate. The solution presents pseudo-plasticity fluid, which shows the characters of shear thinning as follows: first, its viscosity decreases gradually as the temperature increases. The viscosity decreases sharply at both acid and alkaline conditions, indicating that it is influenced apparently by pH value.
