食品科学 ›› 2007, Vol. 28 ›› Issue (9): 49-52.

• 基础研究 • 上一篇    下一篇

新型微生物多糖—韦兰胶的流变特性影响因素研究

 陈芳, 李建科, 徐昶   

  1. 南昌大学食品科学教育部重点实验室; 南昌大学食品科学教育部重点实验室 江西南昌330047; 江西南昌330047;
  • 出版日期:2007-09-15 发布日期:2011-11-22

Study on Factors Affecting Rheological Property of Welan Gum Aqueous Solution

 CHEN  Fang, LI  Jian-Ke, XU  Chang   

  1. Key Laboratory of Food Science,Ministry of Education,Nanchang University,Nanchang 330047,China
  • Online:2007-09-15 Published:2011-11-22

摘要: 本实验研究了韦兰胶水溶液的流变性及温度、pH、盐等对溶液黏度的影响。结果表明:韦兰胶水溶液呈假塑性流体特征,具有良好的剪切稀化性,符合假塑性流体公式lgb=lgK+(N-1)lga。pH、温度对韦兰胶水溶液黏度均无影响,盐对韦兰胶水溶液黏度有较大的影响。

关键词: 韦兰胶, 流变特性, 黏度

Abstract: The rheological property of welan gum solution was studied in this paper.In addition,the effects of temperature,pH and NaCl concentration on viscosity of welan gum solution were investigated.The results indicated that the welan gum solution exhibits a strong pseudoplastical properties characterized by shear-thinning behavior with an equation of lgb=lgK+(N-1)lga.Temperature from 25 to 100℃ and pH from 2 to 12 have little effects on the viscosity of welan gum solution,but the NaCl concentration shows clear influence.

Key words: welan gum, rheological property, viscosity