Microorganisms producing 5-aminolevulinic acid and processes for producing 5-aminolevulinic acid by using the same
US6342377B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 28, 2000 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | Feb 28, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P13/005
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Microorganisms producing 5-aminolevulinic acid which show a 5-aminolevulinic acid synthetase activity of 2 to 7 (nmol/min/mg protein) under aerobic culture conditions with a dissolved oxygen concentration of 0.70 to 6.60 ppm; a process for producing 5-aminolevulinic acid characterized by culturing one or more microorganisms and harvesting 5-aminolevulinic acid from the obtained culture; a process for producing 5-aminolevulinic acid characterized by culturing 5-aminolevulinic acid-producing microorganisms in a medium containing 5 to 500 &mgr;M of iron components; and a method for culturing 5-aminolevulinic acid-producing microorganisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.