Purification of L-phenylalanine
US4584399A · kind A · utility
10Cited by
3References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1984 |
| Grant date | Apr 22, 1986 |
| Priority date | — |
| Expiry date | Nov 27, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P13/222
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A process is disclosed for the separation and recovery of L-phenylalanine from an impure aqueous solution by ultrafiltering and/or centrifuging to remove cellular material and large proteins, contacting the filtered solution with activated carbon to adsorb L-phenylalanine, eluting adsorbed L-phenylalanine, passing the eluate through an ion exchanger, and recovering substantially pure L-phenylalanine from the ion exchange eluate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.