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Change of nano and microstructure of cellulose by surfactant treatment and its effect on promotion of diffusion and adsorption of cellulase

Research Project

Project/Area Number 23656486
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Properties in chemical engineering process/Transfer operation/Unit operation
Research InstitutionThe University of Tokyo

Principal Investigator

SAKODA Akiyoshi  東京大学, 生産技術研究所, 教授 (30170658)

Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords酵素糖化 / 界面活性剤 / 前処理 / surfactant treatment
Research Abstract

In this study, it was shown that treatment of partially delignified lignocellulose with surfactant significantly enhanced cellulase's accessibility to cellulose fibrils through the changes of cellulose microfibril structure. Since a feasible delignification method is a key for the practical application of this method, the combination of surfactant treatment with biological delignification using a white-rot fungi or alkaline treatment was examined. As a result, the combination of the surfactant treatment with the alkaline treatment allowed the experimental condition to be milder. Hence, a semi-batch saccahrification and fermentation system with the surfactant treatment was proposed. It was found that the saccharfication efficiency was increased during the semi-batch reaction. Moreover, it was expected that the proposed concept can be practical due to its simplicity.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (7 results)

All 2013 2012 2011

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (5 results)

  • [Journal Article] Structural changes of lignocelluloses by a nonionic surfactant, Tween 20, and their effects on cellulase adsorption and saccharification2011

    • Author(s)
      Dong-June Seo, Hirotaka Fujita, Akiyoshi Sakoda
    • Journal Title

      Bioresource Technology

      Volume: 102 Pages: 9605-9612

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Structural changes of lignocelluloses by a nonionic surfactant, Tween 20, and their effects on cellulase adsorption and saccharification2011

    • Author(s)
      Dong-June Seo , Hirotaka Fujita, Akiyoshi Sakoda
    • Journal Title

      Bioresource Technology

      Volume: 102 Pages: 9605-9612

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] 白色腐朽菌を用いた稲わらの前処理とそのバイオエタノール生産収率への影響2013

    • Author(s)
      陳 佳敏, 徐 東準, 藤田洋崇, 藤 隆夫, 迫田章義
    • Organizer
      化学工学会第78年会
    • Place of Presentation
      大阪大学
    • Related Report
      2013 Final Research Report
  • [Presentation] 稲わらからのバイオエタノール生産における白色腐朽菌を用いた前処理2012

    • Author(s)
      陳 佳敏, 徐 東準, 藤井 隆夫, 迫田 章義
    • Organizer
      化学工学会 関東支部 横浜大会
    • Place of Presentation
      横浜国立大学
    • Related Report
      2013 Final Research Report
  • [Presentation] 細孔構造が異なるセルロースへの糖化酵素セルラーゼの吸着特性とその初期糖化速度への影響2011

    • Author(s)
      藤田洋崇, 秋本佳希, 徐東準, 迫田章義
    • Organizer
      第25回日本吸着学会研究発表会
    • Place of Presentation
      那覇
    • Related Report
      2013 Final Research Report
  • [Presentation] Significant Enhancement of Enzymatic Saccharification of Cellulose with Nanostructural Change of Cellulose Fibrils by Adsorption of a Non-ionic Surfactant, Tween 202011

    • Author(s)
      Dong-June Seo, Hirotaka Fujita and Akiyoshi Sakoda
    • Organizer
      第25回日本吸着学会研究発表会
    • Place of Presentation
      那覇
    • Related Report
      2013 Final Research Report
  • [Presentation] 細孔構造が異なるセルロースへの糖化酵素セルラーゼの吸着特性とその初期糖化速度への影響2011

    • Author(s)
      藤田洋崇、秋本佳希、徐東準、迫田章義
    • Organizer
      第25回日本吸着学会研究発表会・吸着学会創立25周年記念シンポジウム
    • Place of Presentation
      沖縄産業支援センター
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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