Method for modifying lignin structure using monolignol ferulate conjugates
AssigneesWisconsin Alumni Research Foundation, The United States of America as represented by the Secretary of Agriculture
InventorsJohn Ralph, John H. Grabber, Ronald D. Hatfield, Fachuang Lu
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Abstract
Described is an isolated lignified plant cell wall including lignin, wherein the lignin includes a ferulate residue incorporated therein, such as from coniferyl ferulate and/or sinapyl ferulate. Also described is a method to make the isolated lignified plant cell wall, and the lignin produced by the method.
Claims24
An isolated lignified plant cell wall comprising an isolated plant cell wall that includes lignin, wherein the lignin includes a ferulate residue incorporated therein, wherein the ferulate residue is a ferulate-monolignol ester conjugate, wherein the ferulate-monolignol ester conjugate comprises a monolignol moiety esterified to a ferulate moiety via a γ-carbon on the monolignol moiety, wherein both the monolignol moiety and the ferulate moiety are independently incorporated within the lignin.
A method of manufacturing modified lignin, the method comprising:
- conducting a lignin-producing polymerization reaction in a cell wall in the presence of at least one polymerizable monomer comprising a ferulate-monolignol ester conjugate, wherein the ferulate-monolignol ester conjugate comprises a monolignol moiety esterified to a ferulate moiety via a γ-carbon on the monolignol moiety,
- wherein at least one of the polymerizable monomers is incorporated into the resulting lignin wherein both the monolignol moiety and the ferulate moiety are independently incorporated within the lignin.
A modified lignin produced by a method comprising:
- conducting a lignin-producing polymerization reaction in a cell wall in the presence of at least one polymerizable monomer comprising a ferulate-monolignol ester conjugate, wherein the ferulate-monolignol ester conjugate comprises a monolignol moiety esterified to a ferulate moiety via a γ-carbon on the monolignol moiety,
- wherein at least one of the polymerizable monomers is incorporated into the resulting lignin wherein both the monolignol moiety and the ferulate moiety are independently incorporated within the lignin.
Dependencies are inferred from the claim text.