Function of lignoosulfonic acid as acid catalyst for biomass saccharification and the phenomenon of forming a precipitate with heavy metal ions.

2019 Fiscal Year Final Research Report

• Project/Area Number: 17K07885
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Wood science
• Research Institution: Forest Research and Management Organization
• Principal Investigator: Hishiyama Shojiro 国立研究開発法人森林研究・整備機構, 森林総合研究所, 主任研究員 等 (00353821)
• Co-Investigator(Kenkyū-buntansha): 久保 智史 国立研究開発法人森林研究・整備機構, 森林総合研究所, 主任研究員 等 (50399375)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Keywords: リグノスルホン酸 / 木粉 / 多糖類 / 酸加水分解

Outline of Final Research Achievements

The aims of this study was to develop a natural polymer-derived acid catalyst based on lignosulfonic acid, which is by-produced in the pulping waste liquid during chemical pulping process of woody biomass (sulfite pulping). It was revealed that lignosulfonic acid play a role as an efficient acid saccharification catalyst in the acid hydrolysis of woody biomass.

Free Research Field

木質科学

Academic Significance and Societal Importance of the Research Achievements

安価で入手容易なリグノスルホン酸が木質系バイオマスの酸糖化触媒として使用できる可能性を示したことで、バイオエタノール製造に必要なセルロース系バイオマスの糖化工程のコスト、エネルギー削減に大きな貢献が期待される。