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Updated: May 7, 2026

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Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids
Published on: August 10, 2016
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Process parameters and product characterization for efficient extraction of lignin with deep eutectic solvents: A
Penghui Li1, Tiantian Li1, Shubin Wu1
1State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China.
International Journal of Biological Macromolecules
|October 30, 2024
Summary
This review summarizes lignin extraction using deep eutectic solvents (DES), focusing on lactic acid-choline chloride. It details process parameters and regenerated lignin quality for sustainable biomass refining.
Area of Science:
- Biomass Refining
- Green Chemistry
- Lignin Valorization
Background:
- Lignin, a key component of lignocellulose, is abundant and contains unique benzene ring structures.
- Deep eutectic solvents (DES) offer a sustainable approach to biomass refining.
- A systematic comparison of DES and combined DES processes for lignin extraction is lacking.
Purpose of the Study:
- To review and summarize lignin extraction characteristics using a specific DES (lactic acid-choline chloride).
- To analyze the effects of various process parameters on lignin extraction efficiency and quality.
- To provide an overview of DES applications in lignin processing and biomass refining.
Main Methods:
- Literature review focusing on DES-based lignin extraction.
- Analysis of process parameters including DES composition, reaction conditions, raw material type, and use of third components.
- Examination of combined DES processes for enhanced lignin extraction.
- Characterization of regenerated lignin properties.
Main Results:
- Efficient lignin extraction is achievable with lactic acid-choline chloride DES.
- Key parameters influencing extraction efficiency and lignin quality include DES composition, reaction conditions, and raw material.
- Combined DES processes can further optimize lignin extraction and quality.
Conclusions:
- Deep eutectic solvents show significant potential for sustainable lignin extraction and biomass refining.
- Optimization of process parameters is crucial for maximizing lignin yield and quality.
- Further research into combined DES processes and novel DES formulations is warranted for advanced biomass valorization.
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