机构地区: 山东农业大学
出 处: 《山东农业大学学报(自然科学版)》 1996年第1期44-48,共5页
摘 要: 在20~80℃范围内,研究了71°Brix浓缩梨汁的流变特性。结果表明:浓缩梨汁为牛顿流体,其粘度在20~70℃范围内随温度的升高而降低。70℃以后粘度略有口升。在20~60℃范围内,粘度随温度的变化可用Arrhenius方程描述。 The rheological behaviour of 71°Brix concentrted pear juice was studied in the temperature ranges 20 ̄80℃. The result indicates that the concentrated pear juice behaves as a Newtonian fluid. Its viscosity decreases with the temperature raised in the range 20 ̄ 70℃ and increases slowly over 70℃. In the temperature ranges 20 ̄60℃,the change in viscosity with temperature can be described by an Arrhenius type equation.