Purification of biologically-produced 1,3-propanediol
US7919658B2 · kind B2 · utility
11Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 2004 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Apr 24, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2311/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for purifying 1,3-propanediol from the fermentation broth of a cultured E. coli that has been bioengineered to synthesize 1,3-propanediol from sugar is provided. The basic process entails filtration, ion exchange and distillation of the fermentation broth product stream, preferably including chemical reduction of the product during the distillation procedure. Also provided are highly purified compositions of 1,3-propanediol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.