Edible compositions of Bacillus subtilis natto cells containing water-soluble vitamin K
US6677141B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2001 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Jul 17, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P7/66
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method for culturing Bacillus subtilis in such a manner that a vitamin K derivative is accumulated in the largest amount in the cells of the microorganism. A method for the culture of Bacillus subtilis, which comprises culturing Bacillus subtilis and recovering the cells of the microorganism before the vitamin K produced within the cells of the microorganism is released from the cells is disclosed, as well as the cultured product of Bacillus subtilis cultured by this method, a water-soluble vitamin K derivative originating in the cultured product, a food product, beverage, or feed containing the cultured product and/or the water-soluble vitamin K derivative, and a method for extracting vitamin K.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.