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Analysis of relationship between molecular structure and hydrophobic hydration for amino acids in water.

Research Project

Project/Area Number 24500949
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Eating habits, studies on eating habits
Research InstitutionKitami Institute of Technology (2015)
Prefectural University of Hiroshima (2012-2014)

Principal Investigator

Sato Yukinori  北見工業大学, 工学部, 教授 (50226015)

Co-Investigator(Renkei-kenkyūsha) MIYAWAKI OSATO  石川県立大学, 生物資源環境学部, 教授 (80012053)
Project Period (FY) 2012-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywordsアミノ酸 / 水和 / リンゴ / 酵素的褐変 / 色 / 糖 / 構造
Outline of Final Research Achievements

Analysis of the relationship between the molecular structure and hydration of amino acids in water was carried out with the aim of clarifying the solvent-solute interaction, as represented by the parameter α, and inhibition of enzyme activity. The hydration of Gly-Gly, which is a dimer of glycine, in water increased to a greater extent than expected. Further, hydration of the Gly-trimer increased to a greater degree than that of the Gly-dimer, but the rate of increase was variable. Thus, the hydration of these Gly-oligomers is not simply the sum of the hydration of their constituent Gly residues. Furthermore, the differences in hydration of several D- or L-type hydrophobic amino acids may be not due to differences in their stereostructure. The solvent-solute interaction, represented by the parameter α, does not inhibit the enzyme responsible for browning of apples, due to its limited contribution.

Report

(5 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (6 results)

All 2016 2015 2014 2013 2012 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 2 results) Presentation (4 results)

  • [Journal Article] Analysis of hydration parameter for sugars determined from viscosityand its relationship with solution parameters2016

    • Author(s)
      Yukinori SATO and Osato MIYAWAKI
    • Journal Title

      Food Chemistry

      Volume: 190 Pages: 594-598

    • DOI

      10.1016/j.foodchem.2015.05.119

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Analysis of the Hydration of Sugars and Amino Acids and the Interaction between Food Macromolecules in Aqueous Sugar Solutions Using Viscometric Measurement2014

    • Author(s)
      Yukinori SATO
    • Journal Title

      Journal Of The Japanese Society For Food Science And Technology

      Volume: 61 Pages: 316-322

    • NAID

      130004685200

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 粘度から求めた糖の水和パラメータと水溶液パラメータの関係2015

    • Author(s)
      佐藤之紀,平澤毬子,宮脇長人
    • Organizer
      日本食品工学会
    • Place of Presentation
      広島市立大学
    • Year and Date
      2015-08-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] 水溶液中のグリシンオリゴマーの粘度B係数と部分モル比容の温度変化と水和数の解析2013

    • Author(s)
      佐藤之紀・岩切恵梨奈・花垣恵・宮脇長人
    • Organizer
      日本農芸化学会大会
    • Place of Presentation
      東北大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 粘度B係数と部分モル比容から求めた水溶液中のアミノ酸とそのオリゴマーの水和数2012

    • Author(s)
      佐藤之紀,岩切恵梨奈,福山紗由実,宮脇長人
    • Organizer
      日本食品工学会大会
    • Place of Presentation
      北海道大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 氷の融解温度を用いて算出した糖の水溶液構造パラメータαとエクアトリアルOH基数の関係

    • Author(s)
      相本香織,宮脇長人,佐藤之紀
    • Organizer
      日本農芸化学会関西・中四国・西日本支部 合同大会
    • Place of Presentation
      県立広島大学
    • Related Report
      2013 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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