Lignin to adipic acid in a high-yield chemical and biological redox process

Researchers developed a novel process that converts lignin, a byproduct of the paper and biofuel industries, into adipic acid, a key component in nylon production, on June 10, 2026. This integrated chemical and biological approach achieves high yields, mimicking the efficiency of petrochemical refining. The process begins with a chemical oxidation step that breaks down lignin into smaller aromatic compounds. These intermediates are then subjected to a biological fermentation using engineered microorganisms, which further process the compounds into adipic acid. This method offers a sustainable alternative to traditional petroleum-based adipic acid synthesis, which is energy-intensive and relies on fossil fuels. The study, published in Nature, highlights the potential for biorefineries to produce valuable chemicals from renewable biomass sources. The high yield and selectivity of the process suggest it could be economically viable for industrial-scale production, reducing reliance on crude oil and lowering the carbon footprint of nylon manufacturing. This innovation addresses a significant challenge in biomass valorization, transforming a low-value waste stream into a high-demand industrial chemical.