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Development of a characterization prediction method for subcritical water treatment of food processing residues

Research Project

Project/Area Number 21K05469
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 InstitutionKyoto University

Principal Investigator

Kobayashi Takashi  京都大学, 農学研究科, 助教 (70416311)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords亜臨界水 / 希少糖 / 異性化 / 卵殻 / 速度解析 / 人工知能 / スペクトル / 食品加工残渣
Outline of Research at the Start

亜臨界水処理は食品加工残渣の可食化に有望な技術であるが、処理の熱履歴が処理物の特性や収率に大きく影響する。この影響を定量的に予測する技術はなく、最適化は試行錯誤に頼っている。そこで、熱履歴などの処理条件が処理物の特性に及ぼす影響を、機械学習により数値で予測できるようにする。つまり、加工残渣を様々な条件で処理し、処理条件と処理物の特性を機械学習により関連付ける。そして、条件から特性(およびその逆)を予測できるようにする。

Outline of Final Research Achievements

As a model for subcritical water treatment of food processing residues, this study focused on sugars and analyzed their reaction behavior in subcritical water. We then attempted to predict and express the results of the treatment, but it was difficult to predict by AI. Therefore, we analyzed the reaction behavior of sugars and changed the target to the development of rare sugar production process.
When reducing sugars are treated with subcritical water, isomerization occurs and rare sugars are produced; but the yield has conventionally been low. Therefore, we added buffer solution or eggshells, and investigated the effects of the additives on behaviors of the rare sugar formation. As a result, reducing sugars were easily isomerized in buffer solution or in the presence of eggshells, and the yield of rare sugars was improved by neutralizing byproducts, i.e. organic acids. Furthermore, the calcium ion concentration could be also increased.

Academic Significance and Societal Importance of the Research Achievements

高齢化などに伴うフレイルにより、社会支出の増加に繋がっている。希少糖はフレイルのリスク低減に資すると考えられる。本研究では、還元糖の異性化により希少糖を製造する技術を提案できた。また、副生する有機酸により、溶液中のカルシウムイオン濃度も高めることができ、新規機能性食品素材の製造法ともなり得ることが示唆された。このように、希少糖とカルシウムの双方を含む食品原料を提供できるようになれば、健康増進社会の推進に資するとともに、亜臨界水処理に関連する技術革新と関連産業の発展にも寄与できる。

Report

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

    (7 results)

All 2024 2022 2021

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

  • [Journal Article] Efficient synthesis of rare sugars from galactose in hot compressed water using eggshells as an environmentally friendly catalyst2024

    • Author(s)
      Futamata Shin、Onishi Yuichiro、Adachi Shuji、Khuwijitjaru Pramote、Watanabe Yoshiyuki、Tani Fumito、Kobayashi Takashi
    • Journal Title

      Bioresource Technology

      Volume: 399 Pages: 130642-130642

    • DOI

      10.1016/j.biortech.2024.130642

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Continuous Production of Maltulose from Maltose in a Pressurized Hot Phosphate Buffer2022

    • Author(s)
      ADACHI Shuji、KHUWIJITJARU Pramote、KOBAYASHI Takashi
    • Journal Title

      Japan Journal of Food Engineering

      Volume: 23 Issue: 2 Pages: 63-69

    • DOI

      10.11301/jsfe.22608

    • ISSN
      1345-7942, 1884-5924
    • Year and Date
      2022-06-15
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Insight into formation of various rare sugars in compressed hot phosphate buffer2022

    • Author(s)
      Onishi Yuichiro、Adachi Shuji、Tani Fumito、Kobayashi Takashi
    • Journal Title

      The Journal of Supercritical Fluids

      Volume: 186 Pages: 105621-105621

    • DOI

      10.1016/j.supflu.2022.105621

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Isomerization and Epimerization of Galactose to Tagatose and Talose in a Phosphate Buffer Containing Organic Solvents under Subcritical Water Conditions2021

    • Author(s)
      Onishi Yuichiro、Furushiro Yuya、Adachi Shuji、Kobayashi Takashi
    • Journal Title

      Industrial & Engineering Chemistry Research

      Volume: - Issue: 14 Pages: 5084-5089

    • DOI

      10.1021/acs.iecr.1c00682

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] マイクロ波加熱によるガラクトースの異性化に及ぼす卵殻添加の影響2024

    • Author(s)
      二俣真、尾西 佑一朗、安達修二、 Khuwijitjaru Pramote、渡邉 義之、小林敬、谷史人
    • Organizer
      日本農芸化学会2024年度大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 亜臨界水中での希少糖の反応挙動に及ぼす緩衝液の種類の影響2022

    • Author(s)
      尾西佑一朗、安達修二、谷史人、小林敬
    • Organizer
      日本農芸化学会2022年度大会
    • Related Report
      2022 Research-status Report 2021 Research-status Report
  • [Patent(Industrial Property Rights)] 希少糖含有カルシウムサプリメントおよびその亜臨界水処理による製造法2024

    • Inventor(s)
      小林敬、二俣真、尾西佑一朗
    • Industrial Property Rights Holder
      小林敬、二俣真、尾西佑一朗
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2024-026049
    • Filing Date
      2024
    • Related Report
      2023 Annual Research Report

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

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