期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 6, 期 1, 页码 1265-1270出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.7b03602
关键词
Biomass contaminants; Solvent impurities; Lignocellulose pretreatment; Lignin; NMR spectroscopy
资金
- BioEnergy Science Center, a U.S. Department of Energy Bioenergy Research Center
- Office of Biological and Environmental Research in the DOE Office of Science
- U.S. Government [DE-AC05-00OR22725]
The identification of chemical impurities is crucial in elucidating the structures of biorefinery products using nuclear magnetic resonance (NMR) spectroscopic analysis. In the current biorefinery platform, contaminants derived from pretreatment solvents and decomposition by-products may lead to misassignment of the NMR spectra of biorefinery products (e.g, lignin and bio-oils). Therefore, we investigated 54 commonly reported compounds including alcohols, carbohydrates, organic acids, aromatics, aldehydes, and ionic liquids associated with biomass pretreatment using P-31 NMR The chemical shifts of these chemicals after derivatizing with 2-chloro-4,4,5,5-tetramethyl-1,3,2-dioxaphos-pholane (TMDP) were provided. The P-31 NMR signals of these derivatives could serve as valuable and informative spectral data in characterizing lignocellulose-based compounds.
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