Rapid and accurate determination of the lignin content of lignocellulosic biomass by solid-state NMR.
Fuel (Lond)
; 141: 39-45, 2015 Feb 01.
Article
em En
| MEDLINE
| ID: mdl-25404762
ABSTRACT
Biofuels and biomaterials, produced from lignocellulosic feedstock, require facile access to cellulose and hemicellulose to be competitive with petroleum processing and sugar-based fermentation. Physical-chemical barriers resulting from lignin complicates the hydrolysis biomass into fermentable sugars. Thus, the amount of lignin within a substrate is critical in determining biomass processing. The application of 13C cross-polarization, magic-angle spinning, and solid-state nuclear magnetic resonance for the direct quantification of lignin content in biomass is examined. Using a standard curve constructed from pristine lignin and cellulose, the lignin content of a biomass sample is accurately determined through direct measurement without chemical or enzymatic pre-treatment.
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MEDLINE
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En
Ano de publicação:
2015
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Article