Recovery of lignin and water soluble sugars from plant materials
Author: Belanger, H; Prestidge, RL; Lough, TJ; Watson, JD; Yao, J-L; Elton, C; MacFarlane, A; Farid, Mohammed; Chen, John
Link to this item using this URL: http://hdl.handle.net/2292/24731
In one aspect, a process for treating woody plant material is provided, the process involving contacting the plant material with a continuous flow of an aqueous ethanol solution at elevated temperature and pressure under conditions that promote extraction of ethanol-soluble lignin from the plant material and retention of hemicellulose sugars, xylose and cellulose in the treated plant material solids. In another aspect, a process for extracting hemicellulose sugars from lignin-depleted plant material solids is provided, the process involving contacting lignin-depleted plant material with water at elevated temperature and pressure under conditions that promote extraction of hemicellulose sugars from the plant material; and recovering hemicellulose sugars from the liquid mixture.
Citation: ["Patent/Trademark number: US8822657B2 (United States). Application number: US 13/612453. Publication/Application date: 12 Sep 2012. Publication/Awarded date: 02 Sep 2014"]