Method of obtaining a product sugar stream from cellulosic biomass
US8003352B2 · kind B2 · utility
24Cited by
17References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2005 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Dec 2, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/10
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The invention relates to a process for obtaining a product sugar stream from a cellulosic biomass, comprising pretreating the cellulosic biomass to hydrolyze a portion of the cellulose and hemicellulose to produce glucose, acetic acid and a sugar monomer, adding base to the pretreated cellulosic biomass to produce inorganic salt and acetate salt; hydrolyzing the neutralized cellulosic biomass with cellulase enzymes and separating insoluble residue from the resulting sugar stream; treating the clarified sugar stream using exclusion chromatography at a pH of 5 to 10 to produce a product sugar stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.