Date:19 September 2018
Country: United States
Plants
Trees
Lignin
Biochemicals
vanillin, vanillic acid,syringaldehyde,fragrance
Application
Description This project focuses on a catalytic breakthrough for the oxidative depolymerization of lignin, using gold nanoparticles supported on a lithium-aluminum layered double hydroxide. The process targets the β-O-4 linkage in lignin, converting it into valuable aromatic monomers like vanillin and syringaldehyde. These monomers, used in the food, fragrance, and pharmaceutical industries, have high market values. The team is exploring ways to reduce gold usage while improving the process for industrial applications.
Pathway Description: The process used in this project involves the catalytic oxidative depolymerization of lignin. Gold nanoparticles supported on lithium-aluminium layered double hydroxide (LDH) are used as a catalyst to target the β-O-4 linkage in lignin. This process results in the production of low molecular weight aromatic monomers, such as vanillin, vanillic acid, and syringaldehyde. The catalyst follows a two-electron oxidative mechanism to avoid radical formation and improve yields.
Source: Know More...
Tags: Bio-based ChemicalsAromatic Monomers From LigninOxidative Catalysis Of Lignin
Biochemicals
vanillin, vanillic acid,syringaldehyde,fragrance
Types of Feedstock
Secondary agricultural residue
Name
Lignin
Form
Solid or powdered form
Commercials
Byproduct from the pulp and paper industry
Logistics
Sourced from pulp mills; transported to processing facilities
Characteristics
Rich in aromatic structures and functional groups
Chemical
Catalytic oxidative depolymerization
Educational Institution
University of Kentucky