articleScienceOct 20, 2016GREEN OA

Formaldehyde stabilization facilitates lignin monomer production during biomass depolymerization

LSLi ShuaiMTMasoud Talebi AmiriYMYdna M. Questell‐SantiagoFHFlorent HéroguelYLYanding Li

École Polytechnique Fédérale de Lausanne · University of Wisconsin–Madison · +2 more institutions

PubMed
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Abstract

Practical, high-yield lignin depolymerization methods could greatly increase biorefinery productivity and profitability. However, development of these methods is limited by the presence of interunit carbon-carbon bonds within native lignin, and further by formation of such linkages during lignin extraction. We report that adding formaldehyde during biomass pretreatment produces a soluble lignin fraction that can be converted to guaiacyl and syringyl monomers at near theoretical yields during subsequent hydrogenolysis (47 mole % of Klason lignin for beech and 78 mole % for a high-syringyl transgenic poplar). These yields were three to seven times those obtained without formaldehyde, which prevented lignin…

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1,356
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100%
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Authors

10

Topics & keywords

Topics
Keywords
  • Depolymerization
  • Lignin
  • Formaldehyde
  • Biomass (ecology)
  • Chemistry
  • Monomer
  • Production (economics)
  • Pulp and paper industry
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