Influence of saliva on swallowing

Shimokasa, Kenji; Mizunuma, Hiroshi

doi:10.1299/jsmekanto.2004.10.133

Cited by 1 publication

(3 citation statements)

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“…Overall, the initial value obtained with the IPP method is higher than that obtained with the rotational viscometer. We have investigated the relationships between C of XAN_A and the yield stress estimated with the SIP method (including image processing) and τ ry (Shimokasa et al, 2011). The linear plots of C and the two estimated yield stresses have very strong positive correlation (R 2 = .98) and similarity.…”

Section: Discussionmentioning

confidence: 99%

“…The thickened‐liquid sample was sandwiched between the parallel plates, and we confirmed that the yield stress could be automatically estimated by the improved IPP method. The effect of saliva on swallowing has been investigated using the IPP (Shimokasa & Mizunuma, 2004). When the thickened liquid is sandwiched between the parallel plates (in the IPP), the area of the free surface of the fluid is reduced.…”

Section: Discussionmentioning

confidence: 99%

“…The use of such devices requires specialist knowledge. We have confirmed that the yield stress of a thickened liquid based on XAN can be estimated by the deformation of the thickened liquid on a single inclined plate (SIP) (Shimokasa, Seto, & Mizunuma, 2011). Therefore, we have developed a simplified technique for estimating the yield angle corresponding to the yield stress using the SIP method, allowing the properties of a thickened liquid to be evaluated.…”

Section: Introductionmentioning

confidence: 88%

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Improved system for measuring rheological properties of thickened liquid using an inclined parallel plate and optical sensor

Yasuda

Shimokasa

2023

Journal of Texture Studies

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The purpose of this study was to improve the method of using an inclined parallel plate (IPP) in directly estimating the yield stress τ iy and evaluating the properties of a thickened liquid. The flow curve of the relationship between the shear rate and shear stress of a liquid thickened with a xanthan gum agent was predicted using the). We supposed that the yield stress τ y and the result of a line spread test (LST) indicate the deformation state and the flow state of shear stress (k _ γ nÀ1 ), respectively. τ iy , the yield stress τ ry estimated adopting a rotational viscometer and LST, was investigated for three liquids thickened with xanthan gum at four concentrations (C) at intervals of 0.5 wt% within the range 0.5-2.0 wt%. Linear plots of the relations of C versus τ iy and τ ry and the LST show that with an increase in C, the resistance force (τ ry and τ iy ) increases until flow starts, after which viscosity increases. We suggest that yield stress τ iy estimated with the IPP method effectively indicates the rheological properties of thickened liquids.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 88%

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