Process for purification and recovery of L-phenylalanine
US4960930A · kind A · utility
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8Claims
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Key dates
| Filing date | Oct 19, 1989 |
| Grant date | Oct 2, 1990 |
| Priority date | — |
| Expiry date | Oct 19, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C227/40
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for purification and recovery of phenylalanine from a microbial fermentation broth containing phenylalanine which comprises providing a zinc salt of phenylalanine at a pH of 7-9, adding acid at a pH of 4-7, and separating precipitated phenylalanine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.