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DOE OSTI · 1892301

Energy-resolved mass spectrometry as a tool for identification of lignin depolymerization products

Dong, Xueming·Mayes, Heather·Morreel, Kris·Katahira, Rui·Li, Yanding·Ralph, John·Black, Brenna·Beckham, Gregg
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Abstract

Lignin is the largest source of bio-based aromatic compounds in nature, and its valorization is essential to the sustainability of lignocellulosic biorefining. Characterizing lignin-derived compounds remains challenging due to the heterogeneity of this biopolymer. Tandem mass spectrometry is a promising tool for lignin structural analytics, as fragmentation patterns of model compounds can be extrapolated to identify characteristic moieties in complex samples. This work extends previous resonance excitation type collision-induced dissociation (CID) methods that identified lignin oligomers containing β-Ο-4, β-5, and β-β bonds, to also identify characteristics of 5-5, β-1, and 4-Ο-5 dimers, enabled by quadrupole time-of-flight (QTOF) CID with energy-resolved mass spectrometry (ERMS). Overall, beam type ERMS offers in-depth structural information and could ultimately contribute to tools for high-throughput lignin dimer identification.

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09 BIOMASS FUELS37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRYcollisionally activated dissociationenergy-resolved mass sproctrometrylignin-derived compound characterization

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Dong, Xueming, Mayes, Heather, Morreel, Kris, Katahira, Rui, Li, Yanding, Ralph, John, Black, Brenna, Beckham, Gregg. 2022-10-05. Energy-resolved mass spectrometry as a tool for identification of lignin depolymerization products. https://doi.org/10.1002/cssc.202201441

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