Keto group-introducing enzyme, DNA coding therefor and method for producing ketocarotenoids
US5910433A · kind A · utility
15Cited by
0References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1996 |
| Grant date | Jun 8, 1999 |
| Priority date | — |
| Expiry date | Apr 23, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/946
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
DNA sequences are described that encode genes for synthesizing ketocarotenoids such as astaxanthin. The DNA sequences, microorganisms containing them and encoded polypeptides are described. Also described are methods to obtain related sequences and to make host cells that contain such sequences. These genes and methods are useful to impart red coloration during culture of fish and crustaceans, as coloring in food, and as antioxidants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.