Supramolecular interaction-driven delignification of lignocellulose
Sirviö, Juho Antti; Romakkaniemi, Idamaria; Ahola, Juha; Filonenko, Svitlana; Heiskanen, Juha P.; Ämmälä, Ari (2023-12-07)
Royal society of chemistry
07.12.2023
Sirviö, J. A., Romakkaniemi, I., Ahola, J., Filonenko, S., Heiskanen, J. P., & Ämmälä, A. (2024). Supramolecular interaction-driven delignification of lignocellulose. Green Chemistry, 26(1), 287–294. https://doi.org/10.1039/D3GC03857B
https://creativecommons.org/licenses/by/3.0/
This journal is © The Royal Society of Chemistry 2024. Open Access Article. Published on 07 December 2023. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
https://creativecommons.org/licenses/by/3.0/
This journal is © The Royal Society of Chemistry 2024. Open Access Article. Published on 07 December 2023. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
https://creativecommons.org/licenses/by/3.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202401081134
https://urn.fi/URN:NBN:fi:oulu-202401081134
Tiivistelmä
Abstract
Lignocellulose has the great potential as a sustainable resource to replace fossil-based raw materials, however, properties, such as a complicated crosslinked structure, create a significant obstacle for utilization, as the isolation of lignocellulose components has hardly been achieved under mild conditions. Here, we demonstrate that the use of an aromatic hydrogen bond donor (thymol) creates a supramolecular interaction between the delignification medium and lignin, which is key to removing almost all the lignin from the softwood within minutes, at near-ambient temperatures. Strong support for supramolecular interactions was demonstrated via the formation of a room temperature liquid between two solids (lignin and thymol). The concept of supramolecular interaction between lignin and thymol will help elevate the feasibility of biobased materials across a wide range of applications.
Lignocellulose has the great potential as a sustainable resource to replace fossil-based raw materials, however, properties, such as a complicated crosslinked structure, create a significant obstacle for utilization, as the isolation of lignocellulose components has hardly been achieved under mild conditions. Here, we demonstrate that the use of an aromatic hydrogen bond donor (thymol) creates a supramolecular interaction between the delignification medium and lignin, which is key to removing almost all the lignin from the softwood within minutes, at near-ambient temperatures. Strong support for supramolecular interactions was demonstrated via the formation of a room temperature liquid between two solids (lignin and thymol). The concept of supramolecular interaction between lignin and thymol will help elevate the feasibility of biobased materials across a wide range of applications.
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