ArticleBioresources and bioprocessing2022
A hydrotrope pretreatment for stabilized lignin extraction and high titer ethanol production.
Article in Bioresources and bioprocessing, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 33 citations in OpenAlex.
- Research Progress on Separation and Extraction Technologies of Lignin.Materials (Basel, Switzerland) · 2026Review
- Harnessing plant lignin for sustainable materials and chemicals: integrating biosynthesis, structural diversity, and circular bioeconomy perspectives.Frontiers in plant science · 2026Review
- Microwave-assisted alkaline pretreatment of white grape pomace for the production of bioethanol.RSC advances · 2025Article
- Valorization of Boehmeria nivea stalk towards multipurpose fractionation: furfural, pulp, and phenolic monomers.Biotechnology for biofuels and bioproducts · 2023Article
- Sulphite addition during steam pretreatment enhanced both enzyme-mediated cellulose hydrolysis and ethanol production.Bioresources and bioprocessing · 2022Article
- Optimization of ethanol-extracted lignin from palm fiber by response surface methodology and preparation of activated carbon fiber for dehumidification.Bioresources and bioprocessing · 2022Article
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Authors and funding
7 authors at 3 institutions in 1 country.
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Abstract
The biomass pretreatment strategies using organic acids facilitate lignin removal and enhance the enzymatic digestion of cellulose. However, lignin always suffers a severe and irreversible condensation. The newly generated C-C bonds dramatically affect its further upgrading. In this study, we used a recyclable hydrotrope (p-Toluenessulfonic acid, p-TsOH) to dissolve lignin under mild condition and stabilized lignin with a quenching agent (formaldehyde, FA) during extraction, achieving both value-added lignin extraction and efficient enzymatic saccharification of cellulose. Approximately 63.7% of lignin was dissolved by 80% (wt. %) p-TsOH with 1.5% FA addition at 80 °C, 30 min. The obtained lignin was characterized by FTIR spectroscopy, TGA, 2D HSQC NMR spectroscopy, and GPC. The results indicated that the extracted lignin exhibited excellent properties, such as light color, a low molecular weight (Mw, 5371 g/mol), and a narrow polydispersity (M
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