Use of polyamines in the pretreatment of biomass

US11884620B2 · kind B2 · utility

Assignees

• The Regents of the University of California · US
• National Technology & Engineering Solutions of Sandia, LLC · US

Inventors

• Ezinne Achinivu · Alexandria, US
• Mood Mohan · Emeryville, US
• Hemant Choudhary · Emeryville, US
• Lalitendu Das · Emeryville, US
• Venkataramana R. Pidatala · Emeryville, US
• Harsha D. Magurudeniya · Newport News, US
• Kaixuan Huang · Albany, US
• John M. Gladden · Alameda, US
• Blake A. Simmons · San Francisco, US

Key dates

• Filing date: Dec 9, 2021
• Grant date: Jan 30, 2024
• Expiry date: Dec 9, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12P2201/00
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

The present invention provides for a method to deconstruct a biomass: the method comprising: (a) introducing a solvent comprising a polyamine, or a mixture of polyamines, to a biomass to dissolve at least part of solid biomass in the solvent, wherein the polyamine is a Brønsted or Lewis base, and/or the polyamine is a hydrogen bond donor and/or acceptor; (b) optionally introducing an enzyme and/or a microbe to the solubilized biomass mixture such that the enzyme and/or microbe produces a sugar from the solubilized biomass mixture; (c) optionally separating the sugar from the solubilized biomass mixture; and (d) optionally separating the lignan from the solubilized biomass mixture.