乳业科学与技术2017，Vol.40Issue(2)：1-4,4.DOI:10.15922/j.cnki.jdst.2017.02.001
pH值对海藻酸丙二醇酯溶液流变特性的影响
Effect of pH on the Rheological Properties of Propylene Glycol Alginate Aqueous Solution
吴伟都 1朱慧 1王雅琼 1李言郡1
作者信息
- 1. 杭州娃哈哈集团有限公司研究院,浙江杭州 310018
- 折叠
摘要
Abstract
Propylene glycol alginate is widely used in dairy products or milk-based beverages as a thickener.The aim of the work was to study the influence of pH on the rheological properties of propylene glycol alginate solution.For this purpose,steady-state flow sweep,strain sweep,frequency sweep,dynamic viscoelasticity temperature sweep and dynamic viscosity temperature sweep experiments were carried out with an AR-G 2 rheometer.The experimental results showed that the viscosity,viscoelasticity,and complex viscosity of propylene glycol alginate solution decreased as pH increased,while the loss tangent increased.Meanwhile,at pH below 7 the degree of shear thinning decreased while it increased at pH above 7.In addition,pH influenced the effect of temperature on the viscosity and viscoelasticity of propylene glycol alginate solution.关键词
pH值/海藻酸丙二醇酯/流变特性Key words
pH/propylene glycol alginate/rheological properties分类
轻工纺织引用本文复制引用
吴伟都,朱慧,王雅琼,李言郡..pH值对海藻酸丙二醇酯溶液流变特性的影响[J].乳业科学与技术,2017,40(2):1-4,4.
