Green and efficient organocatalytic delignification of woody biomass
5 affiliations
- 1Institute for Chemical Research
- 2Kyoto University
- 3School of Chemistry
- 4Kanazawa University
- 5Daicel Corporation
Abstract
To realize a sustainable society with circular flows of energy and materials, it is crucial to develop eco-friendly methods to isolate valuable chemical components, such as cellulose, from wood, thereby utilizing woody biomass as a renewable resource. We have devised a one-step delignification process using hydrogen peroxide as a green oxidant. This method selectively breaks down and removes lignin while preserving polysaccharides, especially cellulose, at relatively low temperatures (around 60 ̊C). By evaluating various solvents and catalysts, we demonstrate that a biphasic reaction system comprising aqueous hydrogen peroxide and a hydrophobic solvent enables smooth delignification with organosulfonic acid catalysts bearing a hydrophobic substructure, and reduces the use of hydrogen peroxide and acid catalysts compared to conventional approaches.
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BibTeX
@misc{matsumura2026green,
title = {{Green and efficient organocatalytic delignification of woody biomass}},
author = {Hiroyuki Matsumura and Yuki Nakamura and Makiko Imai (Koyama) and Shogo Suzuki and Satoshi Shikami and Kalum Kathriarachchi and Hema Malani and Yuka Kawahara-Nakagawa and Keito Mineo and Katsuhiro Isozaki and Masaharu Nakamura},
howpublished = {ChemRxiv},
year = {2026},
month = aug,
doi = {10.26434/chemrxiv.15008125/v1},
url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15008125/v1},
note = {CC BY-NC-ND},
}
RIS
TY - UNPB
TI - Green and efficient organocatalytic delignification of woody biomass
AU - Hiroyuki Matsumura
AU - Yuki Nakamura
AU - Makiko Imai (Koyama)
AU - Shogo Suzuki
AU - Satoshi Shikami
AU - Kalum Kathriarachchi
AU - Hema Malani
AU - Yuka Kawahara-Nakagawa
AU - Keito Mineo
AU - Katsuhiro Isozaki
AU - Masaharu Nakamura
PY - 2026
DA - 2026/08/31
PB - ChemRxiv
DO - 10.26434/chemrxiv.15008125/v1
UR - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15008125/v1
AB - To realize a sustainable society with circular flows of energy and materials, it is crucial to develop eco-friendly methods to isolate valuable chemical components, such as cellulose, from wood, thereby utilizing woody biomass as a renewable resource. We have devised a one-step delignification process using hydrogen peroxide as a green oxidant. This method selectively breaks down and removes lignin while preserving polysaccharides, especially cellulose, at relatively low temperatures (around 60 ̊C). By evaluating various solvents and catalysts, we demonstrate that a biphasic reaction system comprising aqueous hydrogen peroxide and a hydrophobic solvent enables smooth delignification with organosulfonic acid catalysts bearing a hydrophobic substructure, and reduces the use of hydrogen peroxide and acid catalysts compared to conventional approaches.
ER -