摘要
研究了不同浓度的石榴汁在不同温度下的流变特性。结果表明:在实验范围内,石榴汁表现为胀塑性流体,通过回归分析,温度对表观粘度的影响可以用Arrhenius方程表示,浓度对表观粘度的影响可以用指数方程更好地表示,并推导出温度和浓度对表观粘度综合影响的方程式。该方程的建立可以用来预测实际加工过程中一定温度和浓度时石榴汁的表观粘度。
The rheological behavior of pomegranate juice was determined at different temperatures and concentrations.The experimental results showed that pomegranate juice was dilatant fluid.By regression analysis,the effect of temperature on apparent viscosity could be described by an Arrhenius type equation,and the effect of concentration on apparent viscosity could be better described by an index type equation.Finally,an equation describing the combined effect of temperature and concentration on apparent viscosity of pomegranate juice was obtained and the equation could be used to predict apparent viscosities of pomegranate juice processed at different temperatures and concentrations.
出处
《食品工业科技》
CAS
CSCD
北大核心
2012年第12期169-172,共4页
Science and Technology of Food Industry
基金
陕西省自然科学基础研究计划项目(2011JM3011)
国家大学生创新性实验计划项目(101071821)
关键词
石榴汁
流变特性
表观粘度
胀塑性流体
pomegranate juice； rheological behavior； apparent viscosity； dilatant fluid
