We have developed innovative, cost-effective, proprietary technology solutions for pre-treatment of biomass with synthetic catalysts for effective depolymerization of lignin. We have synthesized, efficient, sterically protected and electronically activated organic biomimetic catalysts that depolymerize lignin, at ambient temperatures and pressures, to a mixture of phenolics, hemicellulose and cellulose in excellent yield. Salient features of our technology are: -Structural scaffolds incorporate the aza macrocycle into the primary structure. -Depolymerization of lignin is complete in primarily aqueous systems; limited amounts of organic solvents are used. -The co-oxidants that are used are effective in neutral to mildly alkaline conditions. -Reduction/elimination of enzyme in saccharification through in-situ enzyme production with recombinant microbes further reduces the overall production cost -Use of plant waste that is geographically abundant and available locally as feedstock -Improved enzyme efficiency across different environments (pH and temperature) -Genetically modified efficient microbes to gain higher yield in the fermentation process -Adopted Sustainable and Eco-Friendly Alternatives

Sterically protected and electronically activated azamacrocycle catalysts for lignin depolymerization: A new approach to biomass valorization

253rd National Meeting (2017)

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