Lignin Hydrogenolysis: Phenolic Monomers from Lignin and Associated Phenolates across Plant Clades
Mingjie Chen, Yanding Li, Fachuang Lu, Jeremy S. Luterbacher, John Ralph
Abstract
-coumarates and ferulates gave lower yields, on a lignin basis. Softwoods, with their more condensed guaiacyl lignins, gave the lowest yields. Lignins with a high syringyl unit content released elevated monomer levels, with a high-syringyl polar transgenic being particularly striking. Herein, we distinguish phenolic monomers resulting from the core lignin vs those from pendent phenolate esters associated with the biomass cell wall, acylating either polysaccharides or lignins. The basis for these observations is rationalized as a means to select or engineer biomass for optimal conversion to worthy phenolic monomers.
Topics & Concepts
LigninDepolymerizationMonomerHydrogenolysisMonolignolChemistryOrganic chemistryBiomass (ecology)SoftwoodCell wallBiorefineryHydrodeoxygenationLignocellulosic biomassPolymerBotanySelectivityRaw materialCatalysisBiochemistryBiosynthesisBiologyAgronomyEnzymeLignin and Wood ChemistryPlant Gene Expression AnalysisFermentation and Sensory Analysis