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Tunable and functional deep eutectic solvents for lignocellulose valorization

Author

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  • Yongzhuang Liu

    (Northeast Forestry University
    University of Groningen)

  • Noemi Deak

    (Institute of Chemistry)

  • Zhiwen Wang

    (University of Groningen)

  • Haipeng Yu

    (Northeast Forestry University)

  • Lisanne Hameleers

    (University of Groningen)

  • Edita Jurak

    (University of Groningen)

  • Peter J. Deuss

    (University of Groningen)

  • Katalin Barta

    (University of Groningen
    Institute of Chemistry)

Abstract

Stabilization of reactive intermediates is an enabling concept in biomass fractionation and depolymerization. Deep eutectic solvents (DES) are intriguing green reaction media for biomass processing; however undesired lignin condensation is a typical drawback for most acid-based DES fractionation processes. Here we describe ternary DES systems composed of choline chloride and oxalic acid, additionally incorporating ethylene glycol (or other diols) that provide the desired ‘stabilization’ function for efficient lignocellulose fractionation, preserving the quality of all lignocellulose constituents. The obtained ethylene-glycol protected lignin displays high β-O-4 content (up to 53 per 100 aromatic units) and can be readily depolymerized to distinct monophenolic products. The cellulose residues, free from condensed lignin particles, deliver up to 95.9 ± 2.12% glucose yield upon enzymatic digestion. The DES can be recovered with high yield and purity and re-used with good efficiency. Notably, we have shown that the reactivity of the β-O-4 linkage in model compounds can be steered towards either cleavage or stabilization, depending on DES composition, demonstrating the advantage of the modular DES composition.

Suggested Citation

  • Yongzhuang Liu & Noemi Deak & Zhiwen Wang & Haipeng Yu & Lisanne Hameleers & Edita Jurak & Peter J. Deuss & Katalin Barta, 2021. "Tunable and functional deep eutectic solvents for lignocellulose valorization," Nature Communications, Nature, vol. 12(1), pages 1-15, December.
  • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25117-1
    DOI: 10.1038/s41467-021-25117-1
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    Cited by:

    1. Zhou, Man & Fakayode, Olugbenga Abiola & Ahmed Yagoub, Abu ElGasim & Ji, Qinghua & Zhou, Cunshan, 2022. "Lignin fractionation from lignocellulosic biomass using deep eutectic solvents and its valorization," Renewable and Sustainable Energy Reviews, Elsevier, vol. 156(C).
    2. Li Xu & Meifang Cao & Jiefeng Zhou & Yuxia Pang & Zhixian Li & Dongjie Yang & Shao-Yuan Leu & Hongming Lou & Xuejun Pan & Xueqing Qiu, 2024. "Aqueous amine enables sustainable monosaccharide, monophenol, and pyridine base coproduction in lignocellulosic biorefineries," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    3. Xiao, Tianyuan & Hou, Minjie & Guo, Xu & Cao, Xinyu & Li, Changgeng & Zhang, Qi & Jia, Wenchao & Sun, Yanning & Guo, Yanzhu & Shi, Haiqiang, 2024. "Recent progress in deep eutectic solvent(DES) fractionation of lignocellulosic components : A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 192(C).
    4. Poy, Helena & da Costa Lopes, André M. & Lladosa, Estela & Gabaldón, Carmen & Loras, Sonia & Silvestre, Armando J.D., 2023. "Enhanced biomass processing towards acetone-butanol-ethanol fermentation using a ternary deep eutectic solvent," Renewable Energy, Elsevier, vol. 219(P2).

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