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Problem-based researches utilized by novel megalosaccharides dissolving poorly-soluble BCS II compounds

Research Project

Project/Area Number 19KK0147
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 38:Agricultural chemistry and related fields
Research InstitutionHokkaido University

Principal Investigator

KIMURA Atsuo  北海道大学, 農学研究院, 農学研究院研究員 (90186312)

Co-Investigator(Kenkyū-buntansha) 橋床 泰之  北海道大学, 農学研究院, 教授 (40281795)
崎浜 靖子  北海道大学, 農学研究院, 講師 (10344491)
奥山 正幸  北海道大学, 農学研究院, 教授 (00344490)
田上 貴祥  北海道大学, 農学研究院, 助教 (70709849)
Project Period (FY) 2019-10-07 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2022: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2021: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2020: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywordsメガロ糖 / 色素汚染 / 問題解決型研究
Outline of Research at the Start

我々は世界で初めてメガロ糖(MS)の生産に成功した。性質を調べると、BCS IIに属す化合物(難水溶性・高膜透過性)を可溶化する画期的な機能が発見され、BCS II化合物を溶質とする糖質水溶化剤でもあった。一方、難溶性ベンジル系アゾ色素もBCS IIに属し、かつ「東南アジア諸国における名高い環境汚染物質」に注目し、MSとアゾ分解酵素を組合せることで実験室レベルではあるが、色素の可溶化と酵素分解に成功した。以上は初めて生産したMS、すなわち従来型MSの知見である。最近に従来型MSより高機能な新型MSを発見した。本研究では新型MSによるアゾ色素の酵素分解促進を目的とし、当該試験をタイで実施する。

Outline of Final Research Achievements

We have found that the megalosaccharide (MS; a carbohydrate composed of 10-200 monosaccharides) displays the excellent function that can solubilize compounds belonging to BCS II: e.g., water-insoluble and membrane-permeable drugs. Practical water-insoluble azobenzene dyes, which are also classified into BCS II, are typical environment pollutants in Southeast Asian countries. Azo dyes solubilized by MS can be degraded by azoreductase (azo dye-decomposition enzyme). In this study, we produced novel MS with high functionality and improved process to decompose azo dyes in soil, both of which succeeded in degradation of azo dyes contaminated in soil.

Academic Significance and Societal Importance of the Research Achievements

本研究成果の学術的意義として、MSが示すBCS II化合物の可溶化に関する分子機構(疎水と親水の両領域による可溶性のMS-BCS II複合体を形成)が解明された。また、高疎水領域を有するMSの利点と欠点(前者は高疎水性のBCS II化合物を可溶化、後者はアゾ分解酵素を阻害)が判明でき、MSの基本的性質が究明された。社会的意義としては、難溶性の高機能食素材であるクルクミンを可溶化でき、用途拡大に寄与した。また、環境汚染を招く土壌アゾ色素の分解プロセスを確立できた。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (20 results)

All 2023 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (7 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 7 results,  Open Access: 7 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 6 results) Remarks (2 results)

  • [Int'l Joint Research] スラナリー工科大学/マヒドン大学/カセサート大学(タイ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] スラナリー工科大学/マヒドン大学他/カセサート大学(タイ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] スラナリー工科大学/マヒドン大学/カセサート大学(タイ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] スラナリー工科大学/マヒドン大学/カセサート大学(タイ)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Formulation and evaluation of a novel megalomeric microemulsion from tamarind seed xyloglucan-megalosaccharides for improved high-dose quercetin delivery2023

    • Author(s)
      Lang Weeranuch、Mondol Debashish、Trakooncharoenvit Aphichat、Tagami Takayoshi、Okuyama Masayuki、Hira Tohru、Sakairi Nobuo、Kimura Atsuo
    • Journal Title

      Food Hydrocolloids

      Volume: 137 Pages: 108430-108430

    • DOI

      10.1016/j.foodhyd.2022.108430

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Nonreducing terminal chimeric isomaltomegalosaccharide and its integration with azoreductase for the remediation of soil-contaminated lipophilic azo dyes2023

    • Author(s)
      Lang Weeranuch、Sirisansaneeyakul Sarote、Tagami Takayoshi、Kang Hye-Jin、Okuyama Masayuki、Sakairi Nobuo、Kimura Atsuo
    • Journal Title

      Carbohydrate Polymers

      Volume: 305 Pages: 120565-120565

    • DOI

      10.1016/j.carbpol.2023.120565

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Partial depolymerization of tamarind seed xyloglucan and its functionality toward enhancing the solubility of curcumin2023

    • Author(s)
      Lang Weeranuch、Tagami Takayoshi、Kang Hye-Jin、Okuyama Masayuki、Sakairi Nobuo、Kimura Atsuo
    • Journal Title

      Carbohydrate Polymers

      Volume: 307 Pages: 120629-120629

    • DOI

      10.1016/j.carbpol.2023.120629

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Crystal structure and identification of amino acid residues for catalysis and binding of GH3 AnBX β-xylosidase from Aspergillus niger2023

    • Author(s)
      Kaenying Wilaiwan、Choengpanya Khuanjarat、Tagami Takayoshi、Wattana-Amorn Pakorn、Lang Weeranuch、Okuyama Masayuki、Li Yaw-Kuen、Kimura Atsuo、Kongsaeree Prachumporn T.
    • Journal Title

      Applied Microbiology and Biotechnology

      Volume: 107 Issue: 7-8 Pages: 2335-2349

    • DOI

      10.1007/s00253-023-12445-z

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Physicochemical functionality of chimeric isomaltomegalosaccharides with α-(1?→?4)-glucosidic segments of various lengths2022

    • Author(s)
      Lang Weeranuch、Kumagai Yuya、Habu Shinji、Sadahiro Juri、Tagami Takayoshi、Okuyama Masayuki、Kitamura Shinichi、Sakairi Nobuo、Kimura Atsuo
    • Journal Title

      Carbohydrate Polymers

      Volume: 291 Pages: 119562-119562

    • DOI

      10.1016/j.carbpol.2022.119562

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A practical approach to producing isomaltomegalosaccharide using dextran dextrinase from Gluconobacter oxydans ATCC 118942022

    • Author(s)
      Lang Weeranuch、Kumagai Yuya、Sadahiro Juri、Saburi Wataru、Sarnthima Rakrudee、Tagami Takayoshi、Okuyama Masayuki、Mori Haruhide、Sakairi Nobuo、Kim Doman、Kimura Atsuo
    • Journal Title

      Applied Microbiology and Biotechnology

      Volume: 106 Pages: 689-698

    • DOI

      10.1007/s00253-021-11753-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Characterization of an Unknown Region Linked to the Glycoside Hydrolase Family 17 β-1,3-Glucanase of Vibrio vulnificus Reveals a Novel Glucan-Binding Domain2022

    • Author(s)
      Kumagai Yuya、Kishimura Hideki、Lang Weeranuch、Tagami Takayoshi、Okuyama Masayuki、Kimura Atsuo
    • Journal Title

      Marine Drugs

      Volume: 20 Issue: 4 Pages: 250-250

    • DOI

      10.3390/md20040250

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Sugar: a Gift from Heaven2022

    • Author(s)
      Kimura Atsuo
    • Organizer
      JSPS Alumni Seminar in Demark
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Family opens world2022

    • Author(s)
      Kimura Atsuo
    • Organizer
      The Eighth Symposium on the Alpha-Amylase Family
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Megalosaccharides: Production and Function2022

    • Author(s)
      Kimura Atsuo
    • Organizer
      Seminar in Slovakia Academy of Science
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 糖質酵素: わかったこと、わからないこと2022

    • Author(s)
      木村淳夫
    • Organizer
      日本応用糖質科学会北海道支部会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Novel single- and double-anchor-type isomaltomegalosaccharides: production, function, application, and contribution to SDGs.2021

    • Author(s)
      Lang Weeranuch、Tagami Takayoshi、Okuyama Masayuki、Kimura Atsuo
    • Organizer
      タイ科学会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] メガロ糖とは?:課題・生産・機能・展望2021

    • Author(s)
      木村淳夫
    • Organizer
      日本農芸化学会北海道支部会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 糖質加水分解酵素ファミリー97 α-ガラクトシダーゼの糖転移反応2021

    • Author(s)
      岡本菜央,菊池麻子,田上貴祥,奥山正幸,木村淳夫
    • Organizer
      日本応用糖質科学会北海道支部会
    • Related Report
      2020 Research-status Report
  • [Remarks] 分子酵素学研究室、北海道大学 大学院農学研究院、北海道大学 農学部

    • URL

      http://lab.agr.hokudai.ac.jp/molenzlab/

    • Related Report
      2022 Annual Research Report 2021 Research-status Report 2020 Research-status Report
  • [Remarks] 分子酵素学研究室、北海道大学 大学院農学研究院、北海道大学 農学部

    • URL

      https://lab.agr.hokudai.ac.jp/molenzlab/

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-10-10   Modified: 2024-01-30  

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