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Formulation of prompt evaluation system with a simple instrument for predicting viscosity of liquid foods under swallowing condition

Research Project

Project/Area Number 26350087
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Eating habits
Research InstitutionMuroran Institute of Technology

Principal Investigator

YOSHIDA Masanori  室蘭工業大学, 工学研究科, 教授 (70282994)

Co-Investigator(Renkei-kenkyūsha) OHIRA Yuichi  室蘭工業大学, 工学研究科, 教授 (00250522)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords食品 / 嚥下 / 非ニュートン粘性 / 非ニュートン性
Outline of Final Research Achievements

Objectives of this work were to develop a viscometer suitable for predicting the viscosity (thickness) of liquid foods under the swallowing condition and to formulate the evaluation system. The designed viscometer is for a structurally simple and easy-to-use instrument with promptness. A flow channel instrument was devised to simulate the swallowing behavior, being modified operationally and structurally, and the liquid flow in the instrument was analyzed in a hydraulic manner. For the flow experiments, Newtonian and non-Newtonian test liquids were employed. A methodology to evaluate the viscosity was discussed specifically for this instrument and then a concept was proposed based on the relation between the friction coefficient and characteristic flow length. Additionally, the effects of operational and geometrical conditions on the flow were revealed in consideration of the process swallowing liquid foods.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (3 results)

All 2016 2015

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (2 results)

  • [Journal Article] Evaluation of Viscosity of Non-Newtonian Liquid Foods with a Flow Tube Instrument2015

    • Author(s)
      M. Yoshida, H. Igarashi, K. Iwasaki, S. Fuse and A. Togashi
    • Journal Title

      Int. J. Food Eng.

      Volume: 11 Issue: 6 Pages: 815-823

    • DOI

      10.1515/ijfe-2015-0138

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 溝型流路でゲート開度を変えて操作する測定器による液体食品の粘性評価2016

    • Author(s)
      五十嵐仁志,岩﨑研人,吉田雅典
    • Organizer
      2016年度日本機械学会年次大会
    • Place of Presentation
      福岡県福岡市,九州大学伊都キャンパス
    • Year and Date
      2016-09-11
    • Related Report
      2016 Annual Research Report
  • [Presentation] 溝型流路に障害物をもつ測定器による液体食品の粘性評価2016

    • Author(s)
      岩﨑研人,五十嵐仁志,吉田雅典
    • Organizer
      2016年度日本機械学会年次大会
    • Place of Presentation
      福岡県福岡市,九州大学伊都キャンパス
    • Year and Date
      2016-09-11
    • Related Report
      2016 Annual Research Report

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Published: 2014-04-04   Modified: 2018-03-22  

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