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Application of microbial metalloids transformation pathways in metal recovery

Research Project

Project/Area Number 18K19879
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 64:Environmental conservation measure and related fields
Research InstitutionKyushu University

Principal Investigator

Hamamura Natsuko  九州大学, 理学研究院, 教授 (50554466)

Co-Investigator(Kenkyū-buntansha) 光延 聖  愛媛大学, 農学研究科, 准教授 (70537951)
Project Period (FY) 2018-06-29 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords微生物金属代謝 / バイオミネラル / アンチモン還元 / ヒ素還元 / 微生物複合系 / アンチモン / レアメタル / 微生物金属変換 / レアメタル回収
Outline of Final Research Achievements

In this study, we aimed to understand the microbial antimony transformation processes. This process has potential applications in recovering valuable metals, including rare metals such as antimony. Antimony-reducing consortium was enriched from contaminated soils, and three major constituents of the consortium were successfully isolated. Among the three isolates, the novel gram positive bacterium was the most dominant species and its genome contained genes involved in antimony metabolism. This bacterium also demonstrated the ability to reduce toxic elements including arsenic and selenium, in addition to antimony. Consequently, it holds promise for metal recovery and bioremediation through the production of biominerals.

Academic Significance and Societal Importance of the Research Achievements

アンチモンはレアメタルとして半導体など広い用途に使われ、需要の高まりによる価格高騰や資源の枯渇から、排水などからの回収技術の開発が望まれている。本研究では、アンチモンバイオミネラル生成やその他の毒性金属代謝に関与する新規微生物の培養に成功し、また、複数種の相互作用が鉱物からの金属溶出に影響することを示した。本研究の成果は、微生物代謝によりアンチモンや毒性金属の溶解度や形態を変化させ、新規バイオメタル材料の生成や固定化による汚染浄化など、バイオ技術の応用展開としての貢献が見込まれる。

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (10 results)

All 2021 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results)

  • [Journal Article] Draft genome analysis of Cupriavidus sp. strain IK-TO18, isolated from an antimony-contaminated sediment2021

    • Author(s)
      Okubo T., Nakajima N., Yamamura S., Hamamura N.
    • Journal Title

      Microbiology Resource Announcements

      Volume: 10 Issue: 38

    • DOI

      10.1128/mra.00724-21

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Microbe-mineral interaction and biotransformation of toxic metalloids2021

    • Author(s)
      Hamamura N, Yamashita D, Mitsunobu S.
    • Organizer
      International Conference on Materials and Systems for Sustainability 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Biotransformation potential of antimony-reducing microbial consortium obtained from stibnite mine tailing soil2021

    • Author(s)
      Yamashita D, Mitsunobu S, Hamamura N.
    • Organizer
      International Conference on Materials and Systems for Sustainability 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Biotransformation potential of antimony-reducing microbial consortium obtained from stibnite mine tailing soil2021

    • Author(s)
      Yamashita D, Mitsunobu S, Hamamura N.
    • Organizer
      日本微生物生態学会第34回大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ヒ素・アンチモン複合汚染環境における微生物群集構造および金属代謝機能の解析2021

    • Author(s)
      吉村雄弥, 鹿島裕之, 光延聖, 濱村奈津子
    • Organizer
      日本微生物生態学会第34回大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Diversity of microbial arsenic and antimony transformation pathways associated with antimony mine tailing2019

    • Author(s)
      Hamamura, N., Yamashita, Y., Kataoka, T., Mitsunobu, S.
    • Organizer
      Goldschmidt2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 微生物有害元素代謝の多様性:嫌気的アンチモン酸化細菌群の代謝機構と系統分布2019

    • Author(s)
      大久保公貴、山下葉里子、濱村奈津子
    • Organizer
      日本微生物生態学会第33回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] ヒ素の環境挙動に影響を及ぼす微生物代謝機構の多様性2019

    • Author(s)
      濱村奈津子
    • Organizer
      資源・素材学会2019
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Microbial Biotransformation of Toxic Metalloids and Its Bioremediation Potentials2019

    • Author(s)
      Hamamura, N., Okubo, T.,Mitsunobu, S.
    • Organizer
      International Conference on Materials and Systems for Sustainability 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Characterization and diversity of microbial antimony transformation pathways2018

    • Author(s)
      Yamashita, Y., Hamamura, N.
    • Organizer
      The 32nd JSME and 10th ASME
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-07-25   Modified: 2024-12-25  

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