Process for pretreating cellulosic substrates and for producing sugar therefrom
US4237226A · kind A · utility
116Cited by
16References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1979 |
| Grant date | Dec 2, 1980 |
| Priority date | — |
| Expiry date | Feb 23, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC13K1/02
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Processes for treating cellulosic substances prior to hydrolysis which lead to shortening hydrolysis time and to increasing sugar yield. As exemplary, an aqueous slurry of the cellulosic substance is acidified and heated to and maintained at a temperature to produce a change in the cellulosic structure; the heating period is controlled so that there is little glucose formation. The pretreated cellulose may be subsequently hydrolyzed by acid or enzyme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.