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Quantification of cellulose on the deep sea floor

Research Project

Project/Area Number 18K18188
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 63010:Environmental dynamic analysis-related
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

Isobe Noriyuki  国立研究開発法人海洋研究開発機構, 海洋機能利用部門(生物地球化学センター), 研究員 (10802986)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2019: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsセルロース / 堆積物 / 重液分離 / 有機物 / 深海 / 溶剤 / 酵素 / 多糖 / 抽出 / 深海堆積物 / 溶解 / 再生 / 海洋堆積物 / 深海底 / マッピング / 有機地球化学
Outline of Final Research Achievements

Discrepancy between organic matter sinking from upper surface and that consumed on the deep-sea floor has been a matter of debate. One of the candidates that can bridge the gap is cellulose, a recalcitrant crystalline polysaccharide. However, the current methodology does not allow us to quantify the amount of cellulose in the deep-sea sediments. Here, I developed a novel extraction/quantification method of cellulose from the deep-sea sediments and applied it to the sediments collected from the deep-sea environments.

Academic Significance and Societal Importance of the Research Achievements

セルロースを代表とする多糖とは単糖が鎖状に繋がったもので、生物が栄養源や細胞骨格として利用している。従来の海洋科学における多糖分析は、多糖を酸で切断して単糖にまで分解し、単糖の種類や個数からもともとの多糖を想像するという方法であった。しかし、この方法では同じ単糖からなる全く異なる多糖、たとえばセルロースとアミロースを見分けることはできない。本研究課題が達成したセルロース抽出・定量方法は、酵素により特定の多糖を認識して切断し、遊離した単糖から元の多糖を定量するため、確実にセルロースのみを定量することができる。この革新的な方法により、深海底の生態系理解に不可欠な海洋での多糖の動態解明が可能になる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (17 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results) Presentation (4 results) Remarks (4 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] York University(英国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of York(英国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Salt-induced LCST-type thermal gelation of methylcellulose: quantifying non-specific interactions via fluctuation theory2020

    • Author(s)
      Isobe Noriyuki、Shimizu Seishi
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 22 Issue: 28 Pages: 15999-16006

    • DOI

      10.1039/d0cp01687j

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Primary structure of gum arabic and its dynamics at oil/water interface2020

    • Author(s)
      Isobe Noriyuki、Sagawa Naoya、Ono Yuko、Fujisawa Shuji、Kimura Satoshi、Kinoshita Keigo、Miuchi Takeshi、Iwata Tadahisa、Isogai Akira、Nishino Masayuki、Deguchi Shigeru
    • Journal Title

      Carbohydrate Polymers

      Volume: 249 Pages: 116843-116843

    • DOI

      10.1016/j.carbpol.2020.116843

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cellulose dissolution and regeneration using a non-aqueous, non-stoichiometric protic ionic liquid system2020

    • Author(s)
      Berga Laura、Bruce Isobel、Nicol Thomas W. J.、Holding Ashley J.、Isobe Noriyuki、Shimizu Seishi、Walker Adam J.、Reid Joshua E. S. J.
    • Journal Title

      Cellulose

      Volume: 27 Issue: 16 Pages: 9593-9603

    • DOI

      10.1007/s10570-020-03444-8

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Moldable Crystalline α-Chitin Hydrogel with Toughness and Transparency toward Ocular Applications2020

    • Author(s)
      Isobe Noriyuki、Tsudome Mikiko、Kusumi Ryosuke、Wada Masahisa、Uematsu Katsuyuki、Okada Satoshi、Deguchi Shigeru
    • Journal Title

      ACS Applied Polymer Materials

      Volume: 2 Issue: 4 Pages: 1656-1663

    • DOI

      10.1021/acsapm.0c00087

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 深海分解性素材の開発2019

    • Author(s)
      磯部 紀之
    • Journal Title

      日仏工業技術L'Echange

      Volume: Tome65 Pages: 11-14

    • Related Report
      2019 Research-status Report
  • [Journal Article] The mechanism of salt effects on starch gelatinization from a statistical thermodynamic perspective2019

    • Author(s)
      Nicol Thomas W.J.、Isobe Noriyuki、Clark James H.、Matubayasi Nobuyuki、Shimizu Seishi
    • Journal Title

      Food Hydrocolloids

      Volume: 87 Pages: 593-601

    • DOI

      10.1016/j.foodhyd.2018.08.042

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 再生セルロースゲルが示す多孔質弾性2021

    • Author(s)
      磯部紀之
    • Organizer
      日本木材学会第71回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ミリメートル厚を有する半透明セルロース板の創出2019

    • Author(s)
      磯部紀之、岡田 賢、上谷幸治郎、大長一帆、井櫻勝悟、能木雅也、齋藤継之、磯貝明、出口茂
    • Organizer
      セルロース学会第26回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] ミリメートル厚の板状セルロースは新たな窓材となるか?2019

    • Author(s)
      磯部紀之
    • Organizer
      第69回日本木材学会大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 高透明キトサンゲルの再発見2018

    • Author(s)
      磯部紀之,津留美紀子,岡田 賢, 和田昌久, 出口 茂
    • Organizer
      セルロース学会第25回年次大会
    • Related Report
      2018 Research-status Report
  • [Remarks]

    • URL

      https://orcid.org/0000-0001-8571-3373

    • Related Report
      2018 Research-status Report
  • [Remarks]

    • URL

      https://scholar.google.co.jp/citations?user=qrSiZU4AAAAJ&hl=ja&oi=ao

    • Related Report
      2018 Research-status Report
  • [Remarks]

    • URL

      http://www.jamstec.go.jp/res/ress/isoben/

    • Related Report
      2018 Research-status Report
  • [Remarks]

    • URL

      https://researchmap.jp/isoben

    • Related Report
      2018 Research-status Report
  • [Patent(Industrial Property Rights)] セルロース系成型体及びヒドロゲル並びにこれらの製造方法2019

    • Inventor(s)
      磯部紀之
    • Industrial Property Rights Holder
      国立研究開発法人海洋研究開発機構
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-204772
    • Filing Date
      2019
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2025-03-27  

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