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A high-solid DES pretreatment using never-dried biomass as the starting material: towards high-quality lignin fractionation.
- Source :
- Green Chemistry; 2/21/2023, Vol. 25 Issue 4, p1571-1581, 11p
- Publication Year :
- 2023
-
Abstract
- This study investigated a high-solid diol deep eutectic solvent (DES) pretreatment using a wet substrate as the starting material. This pretreatment led to a remarkable glucan saccharification of 94.8% with efficient lignin and xylan removal (as high as 63.1% and 73.0%, respectively). The chemical structures of the substrates were analyzed comprehensively to reveal the impact of the pretreatment. In addition, over 90% of the removed lignin was recovered from the pretreated liquid, which exhibited a well-preserved β-O-4 structure (46–56/100Ar). The protection mechanism of our DES was investigated by 2D HSQC NMR, GPC, and <superscript>31</superscript>P NMR analysis. This study emphasized that diol-based DES pretreatment of undried lignocellulosic biomass at a high-solid loading can significantly utilize both carbohydrates and lignin fractions with high saccharification yields and high-quality lignin as a co-product. [ABSTRACT FROM AUTHOR]
- Subjects :
- LIGNOCELLULOSE
LIGNINS
BIOMASS
CHEMICAL structure
Subjects
Details
- Language :
- English
- ISSN :
- 14639262
- Volume :
- 25
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Green Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 161987139
- Full Text :
- https://doi.org/10.1039/d2gc04595h