Organic Acids for Lignin and Hemicellulose Extraction from Black Liquor: A Comparative Study in Structure Analysis and Heavy Metal Adsorption Potential.

Polymers (Basel) · 2026 · PMC12845765 · PMID 41599546

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an interesting trendno p-value reported

An interesting trend is the increase in carboxyl group content in lignins precipitated with organic acids, particularly noticeable for LC (10.8%) compared to LS (7.4%).

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