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Influence of inorganics and protein, locally distributed within biomass cell wall, on the thermochemical conversion

Research Project

Project/Area Number 20K22591
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0603:Forestry and forest products science, applied aquatic science, and related fields
Research InstitutionTokyo University of Agriculture and Technology (2021)
Kyoto University (2020)

Principal Investigator

Takada Masatsugu  東京農工大学, (連合)農学研究科(研究院), 助教 (00872988)

Project Period (FY) 2020-09-11 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsバイオマス / 脱リグニン / 熱化学変換 / トポ化学 / 微量成分 / 無機物 / タンパク質
Outline of Research at the Start

リグニンから有用物質の創製に向けて、水熱処理等の熱化学処理による脱リグニンが検討されている。近年、高温での熱分解処理にて、無機物やタンパク質が炭化物生成に影響することが指摘されているが、脱リグニンに用いる低温の熱化学処理での影響は検討されていない。また、無機物及びタンパク質は樹体全体としては微量だが、物質流動の要所に局在する。そのため、生成した炭化物が反応溶媒や分解生成物の流動性を低下させ、結果的に脱リグニンに悪影響を及ぼすと予想されるが、詳細は不明である。そこで、細胞壁中に局在する無機物やタンパク質が、熱化学処理における脱リグニン挙動に及ぼす影響の解明を目的とする。

Outline of Final Research Achievements

Decomposition of lignin, a major cell wall component of woody biomass, by thermochemical treatment has been investigated for the conversion to valuable chemicals. The influence of inorganics and proteins, which are locally distributed within biomass cell walls, on delignification by thermochemical treatment are not elucidated yet. In this study, we investigated the influence of these substances on the delignification behavior by supercritical methanol treatment (270℃/30 min). As a result, it was apparent that the inorganics affected the formation of secondary products, and the proteins enhanced the delignification rate.

Academic Significance and Societal Importance of the Research Achievements

死細胞の集合体である木部細胞壁中における、生命活動の痕跡である無機物とタンパク質が熱化学処理での分解機構に影響を及ぼす、という知見は学術的意義が高い。また両成分は生育環境条件が及ぼす影響が大きいと予想され、熱化学処理に適した両成分の分布や構造の制御に関する新たな研究分野の探索も期待される。さらに、昨今エネルギー作物と期待される被子植物単子葉類の植物は両成分の含有量が多く、本研究成果は社会的意義も高い。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (10 results)

All 2022 2021

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Tunable Light Emission from Lignin: Various Photoluminescence Properties Controlled by the Lignocellulosic Species, Extraction Method, Solvent, and Polymer2022

    • Author(s)
      Takada Masatsugu、Okazaki Yutaka、Kawamoto Haruo、Sagawa Takashi
    • Journal Title

      ACS Omega

      Volume: 7 Issue: 6 Pages: 5096-5103

    • DOI

      10.1021/acsomega.1c06104

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Topochemistry of the Delignification of Japanese Beech (Fagus crenata) Wood by Supercritical Methanol Treatment2021

    • Author(s)
      Takada Masatsugu、Minami Eiji、Kawamoto Haruo
    • Journal Title

      ACS Omega

      Volume: 6 Issue: 32 Pages: 20924-20930

    • DOI

      10.1021/acsomega.1c02345

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Topochemistry of delignification behavior of woody biomass using thermochemical treatments2022

    • Author(s)
      Masatsugu Takada
    • Organizer
      Sakura Science Exchange Program
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] タンパク質が超臨界メタノール処理中でのスギリグニン分解挙動に及ぼす影響2022

    • Author(s)
      髙田昌嗣, Yilin Yao, 南英治, 河本晴雄
    • Organizer
      第72回 日本木材学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ブナの超臨界メタノール処理による脱リグニン挙動のトポ化学2021

    • Author(s)
      髙田昌嗣, 南英治, 河本晴雄
    • Organizer
      第71回 日本木材学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] リグニンの発光特性: 樹種、抽出法、溶媒及びポリマーによる発光特性の制御2021

    • Author(s)
      髙田昌嗣, 岡﨑豊, 河本晴雄, 佐川尚
    • Organizer
      第30回日本エネルギー学会年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] リグニンからの発光材料の創製:樹種、抽出法、溶媒及びポリマーによる発光特性の制御2021

    • Author(s)
      髙田 昌嗣, 岡﨑 豊, 河本 晴雄, 佐川 尚
    • Organizer
      第66回リグニン討論会(リグニン学会第3回年次大会)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Photoluminescence and chiroptical properties of various lignins in solvents2021

    • Author(s)
      Masatsugu Takada, Yutaka Okazaki, Haruo Kawamoto, Takashi Sagawa
    • Organizer
      MRM2021 Materials Research Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ブナの超臨界メタノール処理による脱リグニン挙動のトポ化学2021

    • Author(s)
      髙田昌嗣、南英治、河本晴雄
    • Organizer
      第71回 日本木材学会大会
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] リグニン含有蛍光液およびリグニン含有蛍光材料2021

    • Inventor(s)
      髙田昌嗣、岡﨑豊
    • Industrial Property Rights Holder
      髙田昌嗣、岡﨑豊
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-122045
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

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Published: 2020-09-29   Modified: 2023-01-30  

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