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Updated: Oct 17, 2025
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Extraction of Lignin with High β-O-4 Content by Mild Ethanol Extraction and Its Effect on the Depolymerization Yield
Published on: January 7, 2019
21.1K
[Advances in lignin valorization from a biorefinery concept]
Siying Zhang1,2, Yan Chen1, Zhihua Liu3
1Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Ministry of Education, Inner Mongolia University, Hohhot 010021, Inner Mongolia, China.
Sheng Wu Gong Cheng Xue Bao = Chinese Journal of Biotechnology
|October 8, 2021
Summary
Valorizing lignin into fuels and products is key for biorefineries, but its complex structure presents challenges. This review covers pretreatment, fractionation, and conversion strategies to overcome these hurdles for economic lignin utilization.
Area of Science:
- Biomass valorization
- Lignin chemistry
- Sustainable chemical processing
Background:
- Lignin valorization is crucial for biorefinery profitability and sustainability.
- The complex and heterogeneous structure of lignin poses significant technical and economic challenges.
- Current lignin utilization methods are hindered by processing difficulties.
Purpose of the Study:
- To summarize major challenges in lignin valorization processes.
- To review advancements in pretreatment, fractionation, and conversion techniques.
- To discuss future research strategies for effective lignin utilization.
Main Methods:
- Systematic review of scientific literature on lignin valorization.
- Analysis of various pretreatment methods, including combinatorial approaches.
- Evaluation of fractionation techniques such as organosolv extraction, membrane technology, and gradient precipitation.
- Review of thermochemical and biological conversion pathways.
Main Results:
- Identified key technical barriers in current lignin valorization.
- Highlighted emerging combinatorial pretreatment approaches for tailored lignin isolation.
- Presented advances in fractionation methods to improve lignin processability.
- Reviewed progress in thermochemical and biological conversion of lignin.
Conclusions:
- Overcoming lignin heterogeneity through advanced pretreatment and fractionation is essential.
- Integrated approaches combining pretreatment, fractionation, and conversion offer promising pathways.
- Future research should focus on optimizing these integrated strategies for economic viability and sustainability.
