Structural analysis of leaf lignin and investigation of its role

• Project/Area Number: 21580210
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Wood science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: MATSUI Naoyuki 独立行政法人森林総合研究所, バイオマス化学研究領域, 主任研究員 (80353853)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 葉 / リグニン / DFRC法 / S/G比 / 針葉樹 / スギ葉 / アリルエーテル結合

Research Abstract

The structural and quantitative analysis of lignins in Japanese wood leaves was achieved with DFRC method. Needle leaves gave guaiacyl-type degradation product, and broad leaves gave both guaiacyl-and syringyl-type units. These results show leaf lignins are fundamentally made up of the same structural units with xylem lignin. The content of leaf lignin widely varied from less than 0.01% to 1%, depending on the wood species.

Research Products

• [Presentation] 広葉樹の葉リグニンのDFRC法による検出(1) (2011)
  • Author(s): 松井直之、大平辰朗
  • Organizer: 第56回リグニン討論会
  • Place of Presentation: 山形大学(鶴岡市)
  • Year and Date: 2011-09-16
• [Presentation] 広葉樹の葉リグニンのDFRC法による検出(1) (2011)
  • Author(s): 松井直之、大平辰朗
  • Organizer: 第56回リグニン討論会
  • Place of Presentation: 山形大学農学部(鶴岡市)
  • Year and Date: 2011-09-16
• [Presentation] DFRC法による針葉樹の葉リグニンの検出(2)-ニトロベンゼン酸化分解法との比較 (2011)
  • Author(s): 松井直之、大平辰朗
  • Organizer: 第61回日本木材学会大会
  • Place of Presentation: 京都大学(京都市)
  • Year and Date: 2011-03-18
• [Presentation] DFRC法による針葉樹の葉リグニンの検出(2)-ニトロベンゼン酸化分解法との比較- (2011)
  • Author(s): 松井直之、大平辰朗
  • Organizer: 第61回日本木材学会大会
  • Place of Presentation: 京都大学(京都市)
  • Year and Date: 2011-03-18
• [Presentation] DFRC法による針葉樹の葉リグニンの検出 (2010)
  • Author(s): 松井直之、大平辰朗
  • Organizer: 第55回リグニン討論会
  • Place of Presentation: 京都大学(京都市)
  • Year and Date: 2010-10-22
• [Presentation] Detection of guaiacyl lignin in Japanese gymnospermous leaves by DFRC analysis (2010)
  • Author(s): 松井直之、大平辰朗
  • Organizer: XXVth International Conference on Polyphenols
  • Place of Presentation: モンペリエ市Le Corum会議場(フランス)
  • Year and Date: 2010-08-25
• [Presentation] Detection of guaiacyl lignin in Japanese gymnospermous leaves by DFRC analysis (DFRC分析による日本産針葉樹の葉からのリグニンの検出) (2010)
  • Author(s): 松井直之、大平辰朗
  • Organizer: XXVth International Conference on Polyphenols(第25回国際ポリフェノール会議)
  • Place of Presentation: Le Colum(モンペリエ市、フランス)
  • Year and Date: 2010-08-25
• [Presentation] スギ針葉中のリグニン-DFRC法による分析の試み (2009)
  • Author(s): 松井直之、大平辰朗
  • Organizer: 第54回リグニン討論会
  • Place of Presentation: 静岡県男女共同参画センター(静岡市)
  • Year and Date: 2009-10-29
• [Presentation] スギ針葉中のリグニン -DFRC法による分析の試み- (2009)
  • Author(s): 松井直之、大平辰朗
  • Organizer: 第54回リグニン討論会
  • Place of Presentation: 静岡県男女共同参画センター(静岡市)
  • Year and Date: 2009-10-29