Alcohol solvent effect on the self-assembly behaviors of lignin oligomers

Ma, Ya; Jiang, Zhicheng; Luo, Yafei; Guo, Xingjie; Li, Xudong; Luo, Yi; Shi, Bi

doi:10.1016/j.gee.2023.05.001

Cited by 2 publications

(2 citation statements)

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“…During hydrothermal pretreatment, lignin macromolecules with complex intermolecular and intramolecular bonds in the biomass are partially depolymerized and converted into relatively small lignin fractions. , The transformed lignin macromolecules could be attached to the treated solid residue as a self-aggregated form by intermolecular van der Waals attraction and hydrophobic bonding instead of dissolving into a liquid phase. , A soluble organic solvent can easily separate the lignin fraction from the solid residue.…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Lignin Extraction and Fibrillation: A Novel Approach for a Continuous Biorefinery

Choi,

You,

Ahn

et al. 2024

ACS Sustainable Chem. Eng.

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A simultaneous lignin extraction and fibrillation (SEF) process combined with hydrothermal treatment is proposed, which provides an advanced lignin extraction prospect for a continuous biorefinery. Lignin was extracted during refining using a hydrothermally treated solid residue, which loosened the cell wall structure of biomass. The SEF process was controlled according to alcohol concentration without applying heat, pressure, and catalyst, increasing the lignin extraction rate by 2.1 times compared to the unpretreated biomass. The SEF process shortened the time from 96 to 48 h to reach a steady-state yield by improving the initial enzymatic hydrolysis rate with a significant increase in the final glucose conversion rate from 73.8 to 78.0%. Furthermore, the SEF process can produce lignin with a low molecular weight and a narrow polydispersity, benefiting the subsequent purification process by reducing the concentration of phenolic compounds and enzyme proteins in the enzymatic hydrolysate by 1/4 and 1/ 2, respectively.

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Section: Introductionmentioning

confidence: 99%

“…8,9 The transformed lignin macromolecules could be attached to the treated solid residue as a self-aggregated form by intermolecular van der Waals attraction and hydrophobic bonding instead of dissolving into a liquid phase. 10,11 A soluble organic solvent can easily separate the lignin fraction from the solid residue.…”

Section: ■ Introductionmentioning

confidence: 99%