HSQC (heteronuclear single quantum coherence) 13C–1H correlation spectra of whole biomass in perdeuterated pyridinium chloride–DMSO system: An effective tool for evaluating pretreatment

Reichel Samuel, Marcus Foston, Nan Jaing, Shilin Cao, Lenong Allison, Michael Hans-Peter Studer, Charles Wyman & Arthur J. Ragauskas
Perdeuterated pyridinium chloride-DMSO-d 6 is an effective solvent system for whole cell biomass dissolution and NMR characterization. Employing this solvent system, semi-quantitative 13C- 1H heteronuclear single quantum correlation (HSQC) spectroscopy of untreated, steam, dilute acid and lime pretreated poplar biomass samples was readily accomplished. In an effort to demonstrate the efficacy and usefulness of this fairly new characterization technique, relative spectral intensities of the untreated and pretreated biomass samples were evaluated and compared. From the...
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