Direct fermentation of D-xylose to ethanol by a xylose-fermenting yeast mutant
US4511656A · kind A · utility
21Cited by
6References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 11, 1982 |
| Grant date | Apr 16, 1985 |
| Priority date | — |
| Expiry date | May 11, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/942
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A process for obtaining ethanol directly from D-xylose through fermentation of D-xylose by xylose-fermenting yeast mutants. The process provides for obtaining ethanol from hemicellulose hydrolyzates through yeast fermentation of D-xylose to ethanol. In addition, a process for producing yeast mutants capable of utilizing D-xylose to ethanol in high yields is described. Furthermore, the process also provides for obtaining ethanol from a mixture of cellulose and hemicellulose hydrolyzates through yeast fermentation of D-glucose and D-xylose directly and simultaneously to ethanol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.