食品科学 ›› 2003, Vol. 24 ›› Issue (12): 31-33.

• 基础研究 •    下一篇

较低固含量番茄酱的流变性能

 吕军, 唐兵, 杜宗良, 李鑫, 李瑞霞, 吴大诚   

  1. 四川大学轻纺与食品学院
  • 出版日期:2003-12-15 发布日期:2011-12-13

Study on Rhelogical Properties of Low Solid Content of Tomato PasteLV

 LU Jun , TANG  Bing, DU  Zong-Liang, LI  Xin, LI  Rui-Xia, WU  Da-Cheng   

  1. College of Textile and Food, Sichuan University
  • Online:2003-12-15 Published:2011-12-13

摘要: 用RV-II型共轴圆筒旋转粘度仪,研究了一种较低固含量(23%)的番茄酱的流变性能,得出了粘度对切变速率和温度的依赖性。实验表明,番茄酱表观粘度的切变速率依赖性可用幂律模型描述。采用Spencer-Dillon方程求得体系的零切粘度。用Andrade公式计算的粘流活化能可以表征温度对体系粘度的影响。

关键词: 番茄酱, 流变性能, 表观粘度, 零切粘度, 粘流活化能

Abstract: The rheological properties of a kind of tomato paste, the solid content of which was 23% w/w, were measured bya coaxial viscometer RV-II. The dependence of its viscosity on the shear rate and temperature was obtained. Then apparentviscosity of tomato paste depended on the share rate in the form of the power law. The zero-shear viscosity was obtained byusing Spencer-Dillon equation. The thermal dependence of the viscosity was characterized by the activation energy of viscousflow, which was derived from Andrade equation.

Key words: tomato paste, rheological properties, apparent viscosity, zero-shear viscosity, activation energy of viscous flow