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Study on the analytical assay system using capillary gel electrophoresis method for quality and functional evaluation of natural sulfated polysaccharides

Research Project

Project/Area Number 21K05423
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38050:Food sciences-related
Research InstitutionKyushu University

Principal Investigator

Miyazaki Yoshiyuki  九州大学, 農学研究院, 准教授 (40380779)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords硫酸化多糖類 / キャピラリーゲル電気泳動 / 分別定量分析 / 免疫調節 / 多糖類分別定量分析 / キャピラリーゲル電気泳動法 / 食品機能性 / 腸管免疫
Outline of Research at the Start

天然物由来の高分子多糖類は、健康維持に関わる生理活性を有することが知られる一方で、定量分析法が確立されておらず、食品品質および機能性の正しい評価が出来ない。そこで本研究では、天然硫酸化多糖類の安全かつ効果的な食品利用を実現するため、キャピラリーゲル電気泳動原理に基づく硫酸化多糖類の識別定量分析系の構築に取り組み、海藻抽出物を含む食品素材などの多成分検体を対象とした硫酸化多糖の一斉分別定量法の確立を図る。また、海藻由来の硫酸化多糖であるフコイダンの腸管免疫改善効果を中心とする生理機能解析を行い、免疫機能の向上をはじめとする多糖食品素材の腸内環境改善効果に関する機能的品質評価系の構築を目指す。

Outline of Final Research Achievements

High molecular weight polysaccharides derived from natural products are known to have physiological activities suitable for supporting health, but analytical methods for measuring their content in foods have not yet been established. Therefore, this research focused on the development of a new analytical method to measure sulfated polysaccharides in foods based on the analytical principle of capillary gel electrophoresis to ensure the safe and effective use of natural sulfated polysaccharides in foods.
As the results, it was confirmed that the sulfated polysaccharides could be successfully migrated and detected in polyacrylamide gels, although their detection could not be achieved due to insufficient separation by molecular weight and fixation to the capillary wall. In addition, the sulfated polysaccharide fucoidan in brown seaweeds probably has preventive effects on cancer metastasis and infectious diseases by regulating immune function.

Academic Significance and Societal Importance of the Research Achievements

海藻のヌメリ成分であるフコイダンは、水溶性食物繊維の一種であり、食事として摂取された際に腸管免疫系の活性化ならびに腸内細菌叢の改変に寄与し、本研究では、感染病原体の侵入に対する生体防御応答ならびに感染症で生じる病態の緩和に働く可能性を見出した。一方、多糖類を種類別に測定可能な技術は、未だ確立されていないのが現状である。従って、高分子多糖の定量分析法の開発研究は大きな学術的価値を有し、フコイダン含有食品の品質および生理学的機能性の正確な評価試験法を構築することで健康の維持・向上に効果的な食品成分の利用法を社会に提案することができる。

Report

(3 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (8 results)

All 2023 2022 2021 Other

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (6 results) (of which Int'l Joint Research: 2 results) Remarks (1 results)

  • [Journal Article] Profiling sulfate content of polysaccharides in seaweed species using a ligand-assisted <sup>1</sup>H-NMR assay2021

    • Author(s)
      Bak Juneha、Miyazaki Yoshiyuki、Nakano Hayato、Matsui Toshiro
    • Journal Title

      Food Science and Technology Research

      Volume: 27 Issue: 3 Pages: 505-510

    • DOI

      10.3136/fstr.27.505

    • NAID

      130008055742

    • ISSN
      1344-6606, 1881-3984
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 高分子フコイダンによる樹状細胞の活性化における病原体刺激との相乗効果2023

    • Author(s)
      宮崎義之、里山俊哉、中野勇人、竹内秀吾、竹内秀晃、立川大介
    • Organizer
      日本農芸化学会2023年度広島大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Amelioration of inflammatory innate immune responses by a high-molecular weight sulfated polysaccharide Fucoidan2022

    • Author(s)
      Yoshiyuki Miyazaki1, Toshiya Satoyama, Hayato Nakano, Shugo Takeuchi, Hideaki Takeuchi, Daisuke Tachikawa
    • Organizer
      日本免疫学会第51回学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] The anti-inflammatic activity of a sulfated polysaccharide Fucoidan in innate immune cells2022

    • Author(s)
      Yoshiyuki Miyazaki, Toshiya Satoyama, Hayato Nakano, Shugo Takeuchi, Hideaki Takeuchi, Daisuke Tachikawa
    • Organizer
      Immunology2022 Annual Meeting of The American Association of Immunologists
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Anti-angiogenic effect of fucoidan-mix AG via improvement of tumor microenvironment in a mouse melanoma model2021

    • Author(s)
      Yoshiyuki Miyazaki, Juneha Bak, Hayato Nakano, Shugo Takeuchi, Hideaki Takeuchi, Daisuke Tachikawa
    • Organizer
      日本免疫学会第50回学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] がん性血管新生および腫瘍の形成に及ぼすフコイダン-アガリクスミックス(CUA-フコイダン)の摂食効果2021

    • Author(s)
      宮﨑義之,朴俊夏,中野勇人,竹内秀吾,竹内秀晃, 立川大介
    • Organizer
      日本食品科学工学会第68回大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Regulatory mechanism of fucoidan-mix AG in intestinal mucosal immune cells2021

    • Author(s)
      Yoshiyuki Miyazaki, Juneha Bak, Hayato Nakano, Shugo Takeuchi, Hideaki Takeuchi, Daisuke Tachikawa
    • Organizer
      Immunology2021 Annual Meeting of The American Association of Immunologists
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Remarks] 九州大学大学院農学研究院生命機能科学部門食品免疫機能分析学寄附講座

    • URL

      https://www.agr.kyushu-u.ac.jp/lab/bapsa/

    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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