Process for the biotechnological preparation of poly-D-(-)-3-hydroxybutyric acid
US4957861A · kind A · utility
5Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1987 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Nov 20, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/829
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the biotechnological preparation of poly-D-(-)-3-hydroxybutyric acid, herein referred to as PHB, which comprises culturing a microorganism that is a strain of Alcaligenes latus or a PHB-producing mutant thereof with unrestricted supply of nutrients, under unlimited growth conditions in the temperature range from 36.degree. to 42.degree. C. at a dissolved oxygen content of 25 to 50% of the saturation value for air and a pH value of 6.0 to 7.5. The PHB is then isolated in the customary manner from the biomass thereby obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.