Influence of inorganics and protein, locally distributed within biomass cell wall, on the thermochemical conversion

2021 Fiscal Year Final Research Report

• Project/Area Number: 20K22591
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0603:Forestry and forest products science, applied aquatic science, and related fields
• Research Institution: Tokyo University of Agriculture and Technology (2021); Kyoto University (2020)
• Principal Investigator: Takada Masatsugu 東京農工大学, (連合)農学研究科(研究院), 助教 (00872988)
• Project Period (FY): 2020-09-11 – 2022-03-31
• Keywords: バイオマス / 脱リグニン / 熱化学変換 / トポ化学 / 微量成分 / 無機物 / タンパク質

Outline of Final Research Achievements

Decomposition of lignin, a major cell wall component of woody biomass, by thermochemical treatment has been investigated for the conversion to valuable chemicals. The influence of inorganics and proteins, which are locally distributed within biomass cell walls, on delignification by thermochemical treatment are not elucidated yet. In this study, we investigated the influence of these substances on the delignification behavior by supercritical methanol treatment (270℃/30 min). As a result, it was apparent that the inorganics affected the formation of secondary products, and the proteins enhanced the delignification rate.

Free Research Field

バイオマス科学

Academic Significance and Societal Importance of the Research Achievements

死細胞の集合体である木部細胞壁中における、生命活動の痕跡である無機物とタンパク質が熱化学処理での分解機構に影響を及ぼす、という知見は学術的意義が高い。また両成分は生育環境条件が及ぼす影響が大きいと予想され、熱化学処理に適した両成分の分布や構造の制御に関する新たな研究分野の探索も期待される。さらに、昨今エネルギー作物と期待される被子植物単子葉類の植物は両成分の含有量が多く、本研究成果は社会的意義も高い。