Method for the separation of a basic amino acid from its fermentation broth
US4663048A · kind A · utility
13Cited by
2References
13Claims
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Key dates
| Filing date | Mar 20, 1985 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | Mar 20, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D63/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for separating a basic amino acid from its fermentation broth, or the liquid resulting from the intermediate treatment of the fermentation broth, containing high-molecular weight contaminants which entails permeating the broth, or liquids resulting from the intermediate treatment of the broth, through a semi-permeable membrane, until the basic amino acid is separated from the high-molecular weight contaminants, by passing through the membrane in the permeate; contacting the permeate with a strongly acidic cation exchange resin; and eluting the adsorbed basic amino acid from the cation exchange resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.