Feed additive containing tryptophan
US4778808A · kind A · utility
4Cited by
0References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1986 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Mar 12, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D207/20
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A feed additive produced by concentrating an aqueous solution containing tryptophan and impurities both originating in the culture broth of a tryptophan-producing microorganism, with the pH of the aqueous solution being maintained in the range of 4 to 6 and the temperature thereof being maintained in the range of 20.degree. to 80.degree. C. during the process of concentrating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.