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Possibility of Glassy Preservation by Microwave Room-Temperature Drying of Biological Proteins

Research Project

Project/Area Number 17K18843
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Fluid engineering, Thermal engineering, and related fields
Research InstitutionKyushu Institute of Technology

Principal Investigator

TSURUTA TAKAHARU  九州工業大学, 大学院工学研究院, 教授 (30172068)

Project Period (FY) 2017-06-30 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Keywordsタンパク質乾燥 / マイクロ波真空乾燥 / ガラス化保存 / 生物製剤 / 発泡乾燥 / 常温乾燥 / 熱工学 / タンパク質 / マイクロ波泡乾燥 / ガラス化 / マイクロ波乾燥 / 蛋白質
Outline of Final Research Achievements

High quality drying of therapeutic protein solution is important in medical and pharmaceutical processing. Freeze-drying is mostly used, but it takes a long drying time and causes damages of protein structures. In order to improve the drying quality and time, we propose a microwave vacuum drying performed at ambient temperatures under low-pressure conditions. We are focusing on the glassy preservation by evaporative drying at room-temperature because the vitrification temperature increases with the protein concentration. Circular dichroism spectroscopy is used to detect protein conformation changes during the drying of egg white or lysozyme. We also make a UV measurement of the residual activity of lysozyme by using the micrococcus luteus. It is concluded that the microwave vacuum drying at room temperature can preserve the protein conformation. Also, we can find that the formation of foam shortens the drying time drastically.

Academic Significance and Societal Importance of the Research Achievements

生体高分子を用いたタンパク質系の生物製剤は,近年の医療技術において非常に注目されているが,物理化学的に不安定なため,その製造・保存法において革新的な技術の登場が切望されている.本研究課題は,この期待に応えることのできる方法としてマイクロ波常温乾燥法を提案し,その有効性を示したものである.乾燥後においてもタンパク質構造を維持でき,その活性を損なうことなく保存できることを実際に検証し,実証したものである.特に,一般的な凍結乾燥に比べて乾燥時間を短縮でき,さらには発泡乾燥とすることによって乾燥時間が格段に短くなることを見出しており,製薬業界に大きく貢献するものである.

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (5 results)

All 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Ambient temperature drying of therapeutic protein solution with use of microwave2018

    • Author(s)
      Tsuruta Takaharu、Ogawa Takuma、Abe Ryosuke、Tanigawa Hirofumi
    • Journal Title

      Proceedings of IDS 2018: 21st International Drying Symposium

      Volume: 1 Pages: 651-658

    • DOI

      10.4995/ids2018.2018.7537

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 生物由来タンパク質製剤のマイクロ波発泡乾燥の可能性2019

    • Author(s)
      藤田琴音,小川拓馬,鶴田隆治,谷川洋文
    • Organizer
      日本伝熱学会第56回日本伝熱シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] Microwave Foam-Drying of Egg White2019

    • Author(s)
      Takaharu Tsuruta, Takuma Ogawa, Kotone Fujita, Hirofumi Tanigawa
    • Organizer
      EuroDrying'2019, 7th European Drying Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 生物由来水溶性タンパク質のマイクロ波真空発泡乾燥2018

    • Author(s)
      小川拓馬,鶴田隆治,谷川洋文
    • Organizer
      日本機械学会熱工学コンファレンス2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] Ambient Temperature Drying of Therapeutic Protein Solution with Use of Microwave2018

    • Author(s)
      Takaharu TSURUTA, Takuma OGAWA, Ryosuke ABE, Hiofumi TANIGAWA
    • Organizer
      IDS'2018-21st International Drying Symposium
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-07-21   Modified: 2020-03-30  

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