Bioethanol production using high-activity steam explosion and LED-irradiated growth-promoting wood-rotting fungus treatment

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K19995
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 64030:Environmental materials and recycle technology-related
• Research Institution: Kyoto University (2022); The University of Tokushima (2020-2021)
• Principal Investigator: suzuki akihiro 京都大学, 生存圏研究所, 特定研究員 (00848509)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: バイオマス / リグニン / セルロース / 発酵 / LED / アラゲカワラタケ / 水蒸気爆砕

Outline of Final Research Achievements

decomposing woody biomass, which is challenging to use in a way that has less environmental impact. We have developed a treatment method that combines a decomposition treatment using only water and a decomposition treatment using bacteria. During the development of the decomposition method using bacteria, the decomposition efficiency changed in light irradiation culture using LEDs. By changing the irradiation light, the yield of glucose to be decomposed and ethanol to be produced was investigated, and the optimum light irradiation conditions were investigated.

Free Research Field

バイオマス変換工学

Academic Significance and Societal Importance of the Research Achievements

これまでの菌への光照射培養はランプ光源による短時間の照射が多く、長期間の培養研究はあまり行われていなかった。しかし、LEDの発明によって、より低コストに長時間の照射を行うことができる。菌を用いた木質バイオマスの分解技術は低コストかつ環境に易しい方法であるが、効率が悪く実用に至っていない。光照射培養によって糖分解効率が向上した本研究成果によって、菌による木質バイオマスの分解の効率化が期待できる。