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Updated: Mar 22, 2026
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Ultrafast Lignin Extraction from Unusual Mediterranean Lignocellulosic Residues
Published on: March 9, 2021
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Advances in fulvic acid extraction from lignite: techniques, challenges, and applications
Iqra Yousaf1, Lizhen Gao2, Iffat Riaz1
1School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China.
Environmental Monitoring and Assessment
|March 20, 2026
Summary
Fulvic acid (FA), a key component of humic substances, offers significant benefits for soil health, plant growth, and environmental cleanup. Research highlights its potential but notes challenges in efficient, high-quality extraction for widespread application.
Area of Science:
- Environmental Science
- Soil Science
- Biochemistry
Background:
- Fulvic acid (FA) is the primary active component of humic substances (HS), crucial for soil health and plant growth.
- FA is derived from the decomposition of organic matter and can be sourced from low-rank coal, peat, and soil.
- Extraction from low-rank coal is cost-effective, with applications spanning agriculture, environmental remediation, and medicine.
Purpose of the Study:
- To review the diverse properties and extraction methodologies of fulvic acid.
- To emphasize FA's potential as a sustainable agent for environmental remediation and as a nutraceutical.
- To explore FA's role in influencing geochemical metal behavior and its agricultural and health benefits.
Main Methods:
- Review of existing literature on fulvic acid properties and extraction techniques.
- Analysis of chemical and biological methods for FA extraction.
- Evaluation of FA's capabilities in metal adsorption, complexation, and redox reactions.
Main Results:
- FA effectively influences metal geochemistry, aiding in the removal of contaminants like lead, chromium, and mercury.
- Its amphiphilic nature supports agricultural development and soil vitality, with demonstrated immunomodulatory effects.
- Challenges exist in achieving efficient industrial-scale production due to limited yields and variable quality.
Conclusions:
- Fulvic acid shows significant promise for environmental cleanup, sustainable agriculture, and health applications.
- Variability in raw materials and extraction methods necessitates further research for consistent quality and optimized production.
- Continued research is vital to fully harness FA's potential in technological development and sustainable practices.
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