Process for preparation of propionic acid
US4732855A · kind A · utility
6Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1984 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Apr 3, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/822
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
An improved process for the production of propionic acid comprises cultivating a propionic acid-producing bacterium anaerobically in a medium which contains a simple carbohydrate, which can be converted by the bacterium to pyruvate, as well as essential minerals, vitamins, and growth factors under an overpressure of hydrogen which is effective to cause a hydrogenase produced by the bacterium to suppress the oxidation of pyruvate to acetate and carbon dioxide and to promote the formation of propionic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.