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1994 Fiscal Year Final Research Report Summary

Development of a new sterilization system of liquid foods without any damage to their components.

Research Project

Project/Area Number 05555219
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 生物・生体工学
Research InstitutionGunma University

Principal Investigator

SATO Masayuki  Gumma University Dept.of Bio.& Chem.Eng.Professor, 工学部, 教授 (70008473)

Co-Investigator(Kenkyū-buntansha) NAKANISHI Koichi  Marine Biotech.Institute Head researcher, 主任研究員
SAITO Masahiro  Research assistant, 工学部, 教務員 (50170527)
OHSHIMA Takayuki  Research associate, 工学部, 助手 (30251119)
Project Period (FY) 1993 – 1994
KeywordsFood industry / Pulse sterilization / Pulsed electric field / Normal temperature sterilization / Inactivation / Radical / Streamer discharge / Temperature effect
Research Abstract

The authors investigated an application of a new method for sterilization of liquid foods under normal temperature without any change in their components. As a result the following conclusions were obtained :
(1) Efficiency of the electrical pulse energy for sterilization was greatly improved by a parallel use of external heating under 60C(below the temperature with no damage to protein)[1].
(2) When the sharp edge electrode was used some radical species were formed in the streamer discharge in water and were converted to hydrogen peroxide. Round edge electrode should be used when we intend to apply to the food industry[2]
(3) Selective release of intracellular proteins was possible with varying electrical conditions where different kinds of enzymes were detected with changing pulse voltage[3].
Further work on the present subject that a development of a new design parameter to make impedance matching between pulse source and sterilization chamber will be continued in the future.
[1]Annu.Meet.Chem.Eng.Japan, D-107(1994) ; [2]IEEE Trans.Ind.Appl., in print ; Conf.Rec.-IAS Annu.Meet.(IEEE), pp.1455(1994) ; [3]J.Electrostatics, in print ; Proc. ESA-IEJ Joint symposium on Electrostatics, pp.3(1994) ; Annu.Meet.Seibutsu Kogakukai, No.506(1993) ; Autumn Meet.Chem.Eng., N-114(1994)
[1] Annu.Meet.Chem.Eng.Japan, D-107 (1994) ; [2] IEEE Trans.Ind.Appl., in print ; Conf.Rec.-IAS Annu.Meet. (IEEE), pp.1455 (1994) ; [3] J.Electrostatics, in print ; Proc.ESA-IEJ Joint Symposium on Electrostatics, pp.3 (1994) ; Annu.Meet. Seibutsu Kogakukai, No.506 (1993) ; Autumn Meet.Chem.Eng., N-114 (1994)

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Oshima, T. , Saito, M. and Sato, M.: "Selective release of intracellular protein using pulsed electical field" J. Electrostatics. ( in print). (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Saito, M. , Ohgiyama, T. and Clements,J.S.: "Formation of chemical species and their effects on microorganisms using a pulsed high voltage discharge in water" IEEE Trans. Ind. Appl.( in print). (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Oshima, T. , Saito, M. and Sato, M.: "Selective release of intracellular protein using pulsed electrical field" Proc. ESA-IEJ Joint Symposium on Electrostatics. 3-11 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Saito, M. , Ohgiyama, T. and Clements,J . S.: "Formation of chemical species and their effects on microorganisms using a pulsed high voltage discharge in water" Conf.Rec.-IAS Annu. Meet. ( IEEE). 1455-1461 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Sato, M. , Kimura, K. , Ikeda, K. , Ogiyama, T. and Hata, K.: "Developments in Food Engineering" Blackie A&P, 1085 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 佐藤正之: "食品の微生物制御とその利用技術" 缶詰技術研究会, 186 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Oshima, T., Saito, M.and Sato, M.: "Selective release of intraeellular protein using pulsed electrical field" J.Electrostaties. (in print, ). (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato, M., Ohgiyama, T.and Clements, J.S.: "Formation of chemical speeics and their effects on microorganisms using a pulsed high voltage discharge in water" IEEETrans.Ind.Appl.(in print, ). (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Oshima, T., Saito, M.and Sato, M.: "Selective release of intraeellular protein using pulsed electrical field" Proc.ESA-IEJ Joint Symposium on Electrostatics. 3-11 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato, M., Ohgiyama, T.and Clements, J.S.: "Formation of chemical speeics and their effects on microorganisms using a pulsed high voltage discharge in water" Conf.Rec.-IASAnnu.Meet.(IEEE). 1455-1461 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato, M., Kimura, K., Ikeda, K., Ogiyama, T.and Hata, K.: "Developments in Food Engineering" Blackie A&P. 1085 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sato, M.: "Applications for controlling of microorganisms in food industry." Society for Food Packaging. 186 (1994)

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

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Published: 1996-04-15  

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