胡芦巴胶溶液的流动性模型拟合和动态粘弹性分析

doi:10.3969/j.issn.1673-1689.2018.01.008

首页 > 过刊浏览>2018年第37卷第1期 >44-49. DOI:10.3969/j.issn.1673-1689.2018.01.008

胡芦巴胶溶液的流动性模型拟合和动态粘弹性分析
DOI:
                        10.3969/j.issn.1673-1689.2018.01.008
                    
作者:
                        
                        
                    
作者单位:
作者简介:
通讯作者:
中图分类号:S529
基金项目:

Flow Model Fitting and Dynamical Viscoelasticity Analysis of Fenugreek Gum Solutions

Author:

Affiliation:

Fund Project:

摘要

图/表

访问统计

参考文献

相似文献

引证文献

资源附件

文章评论

摘要:

在特定温度（25 ℃）下，通过对葫芦巴胶（FG）溶液进行稳定剪切和小振幅振荡处理后，测定其触变性及粘弹性，以及通过Carreau和Herschel-Bulkey模型对FG溶液流动性进行评估。结果表明：FG溶液刚开始表现出剪切增稠特性，当超过临界剪切速率时表现为剪切变稀行为，表现出非牛顿流体特性。Herschel-Bulkey和Carreau模型对流动曲线的拟合表明实验结果更符合流变学的Carreau模型。触变测试表明FG溶液具有一定的触变性，FG溶液质量浓度越高，触变性越强，当FG溶液质量浓度小于0.35 g/dL时，触变环面积为负值，表明样品结构破坏且不能恢复。动态粘弹性测试表明FG溶液的储能模量和损耗模量随角频率和FG质量浓度的增大而增大，随着温度的升高而降低，并表现出类似于固体的弹性行为。

Abstract:

The flow and viscoelastic behavior were measured by steady-shear and small-amplitude oscillatory experiments at 25 ℃，respectively. The aim of this paper was to provide meaningful guidance for Fenugreek Gum＇s application in various areas by the rheology analysis. The results showed that FG aqueous solutions exhibited an initial shear-thicking behavior，followed by a shear-thinning behavior above a critical value of shear rate，suggesting a non-Newtonian fluid characteristic. The experimental data were evaluated by the Herschel-Bulkey and Carreau models，results were founded to be well correlated to the Carreau model with a high R2. The hysteresis loop represented a certain thixotropic property of FG solutions，and showed concentration dependence. However，FG solutions at a concentration less than 0.35% showed a negative value of thixotropic loop area，suggesting the structural breakdown and no recovery was measured in the corresponding experiment. The dynamical viscoelastic properties of FG aqueous solutions showed the storage and loss modulus increased with the increase of angular frequency and FG concentrations，and decreased with the increase of temperatures. In addition，the FG solutions exhibited a solid，elastic-like behaviour，while FG at a concentration of 0.1% w/w exhibited a transition from a fiuid-like to gel-like structure.

参考文献

相似文献

引证文献

引用本文

谢瑞,魏燕霞,张永国,张继.胡芦巴胶溶液的流动性模型拟合和动态粘弹性分析[J].食品与生物技术学报,2018,37(1):44-49.

XIE Rui, WEI Yanxia, ZHANG Yongguo, ZhANG Ji. Flow Model Fitting and Dynamical Viscoelasticity Analysis of Fenugreek Gum Solutions[J]. Journal of Food Science and Biotechnology,2018,37(1):44-49.

复制

文章指标

点击次数:
下载次数:
HTML阅读次数:
引用次数:

历史

收稿日期:
最后修改日期:
录用日期:
在线发布日期: 2018-03-08
出版日期:

地址：江苏省无锡市蠡湖大道1800号邮政编码：214122

电话：0510-85913526 电子邮件：xbbjb@jiangnan.edu.cn

技术支持：北京勤云科技发展有限公司

引用本文

分享

文章指标

历史

微信公众号二维码

手机版网站二维码