Evaluation of thickened liquid viscoelasticity for a swallowing process using an inclined flow channel instrument
Evaluation of thickened liquid viscoelasticity for a swallowing process using an inclined flow channel instrument
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DOI：
10.1515/ijfe-2021-0328
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发表时间：
2022-01
影响因子：
1.6
通讯作者：
M. Yoshida;Yuko Tsuruta;Yuichiro Takako;Ayaka Kudo;Ryosuke Fujiwara
中科院分区：
文献类型：
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作者：
M. Yoshida;Yuko Tsuruta;Yuichiro Takako;Ayaka Kudo;Ryosuke Fujiwara
本文介绍了一种结构简单、使用方便的倾斜流道流变仪，用于控制护理实践中用于吞咽的增稠液体的粘度和弹性。含有盐或酸的水溶液，可以用作饮料中的成分，用商业增稠剂增稠。液相中的盐或酸会降低增稠剂的效果。通过实验对仪器中的流动进行分析，得到了表示流动过程中Deborah数变化的无量纲关系，如相对流动长度所示，考虑到口腔加工中的剪切速率。提出了一种独特的方法来评估稠化液体在吞咽过程中的粘弹性，利用仪器中的经过时间和速度等测量。
Abstract An inclined flow channel instrument that can be developed to be a structurally simple and easy-to-use rheometer was applied to control the thickness, specifically the viscosity and elasticity, of liquids thickened to support swallowing in nursing-care practice. Aqueous solutions containing salt or acid, which might be used as ingredients in drinks, were thickened with a commercial thickener. The thickener efficacy decreased because of the salt or acid in liquid phase. Analysis of the flows in the instrument by experimentation yielded a dimensionless relation representing changes of the Deborah number in the flow process, as indicated by the relative flow length, considering the shear rate in oral processing. One unique methodology to evaluate the viscoelasticities of thickened liquids during the swallowing process was presented utilizing the measurements such as elapsed time and velocity in the instrument.