摘要
为了探讨小麦淀粉浆糖化醪在加热过程中的流变特性,利用NDJ—79型旋转式粘度计对小麦淀粉糖化醪进行了流变性测定,并对其流变特性进行了分析.结果表明:小麦淀粉浆糖化醪是假塑性非牛顿流体,其流变特性服从幂律指数模型,随着温度的升高其稠度系数k减小,流变指数n基本上没有变化,随着浓度的增大其稠度系数k增大,流变指数n减小.
In order to inquire into the rheological characteristics of wheat starch saccharification liquor heated, in this paper, the rheological characteristics of wheat starch saccharification liquor were measured by NDJ-79 type viscosity meter. The rheological characteristics of this kind of liquor was also analyzed .The results show that the liquor is pseudoplastic non-Newtonian fluid and its rheological characteristics meet with power-law index model. Its consistency coefficient K decreases with the increase of temperature, but the flow behavior index n changes little. With the increasing of mass ratio, the coefficient K increases, but the index n decreases.
基金
河南省自然科学基金资助项目(004031600)
