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1995 Fiscal Year Final Research Report Summary

Gelation mechanism of fish proteins.

Research Project

Project/Area Number 06660267
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Fisheries chemistry
Research InstitutionSophia University

Principal Investigator

TSUCHIYA Takahide  Sophia University, Faculty of Science and Technology, Professor, 理工学部, 教授 (90053694)

Project Period (FY) 1994 – 1995
KeywordsFishes / Myosin / Jelly strength / alpha-helix / DSC / fluorescence intensity
Research Abstract

Participation of the alpha-helix in setting was investigated using circular dichroism, DSC and Rheometer.
1)Thermal stability of myosin from several species of fish adapted to different environmental temperatures has been studied by using differential scanning calorimetery, fluorescence intensity and circular dichroism.
2)The temperature range of the sharp decrease in the alpha-helical content agreed very closely with that of the endothermic peaks.
3)The structure of fish myosin was much more unstable than that of rabbit.
4)The alpha-helicity of the actomyosin from several species of fish decrease during incubation at 30゚C or at 40゚C.
5)The extent and pattern of decrease different among species.
6)When rate of decrease was plotted vs rate of increase in strength of gel preincubated at 30゚C or 40゚C, the two factors correlated closely.
From 1)-6), we propose that the unfolding of alpha-helix of fish myosin initiated setting.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] M.Ogawa,et.al.: "Alpha-Helical Stracture of Fish Actomyosin" J.Food Sci.60. 297-299 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Ogawa,et.al.: "Thermal stability of a-helical structure of fish myosin rods" Comp.Biochem.Physiol.94. 367-370 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 中島 滋,他: "DHA高含有魚油のラット肝油滴への影響" 日本水産学会. 61. 769-770 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Ogawa et.al.: "Alpha-Helical Stracture of Fish Actomyosin" J.Food Sci.60. 297-299 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Ogawa et.al.: "Thermal stability of a-helical structure of fish myosin rods" Comp.Biochem.Physiol.94. 367-370 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Nakajima et.al.: "Effect of Fish Oil Rich Docosahexaenoic Acid on Lipid Drops in Rat Hepatocytes" Nippon Suisan Gakaishi. 61. 769-770 (1995)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1997-03-04  

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