Complex crystalline sugar comprising D-psicose and D-allose and process for production of the same
US8748589B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 3, 2006 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Nov 5, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P19/24
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A complex crystalline sugar comprising D-psicose and D-allose and a method for producing the same are disclosed. The compositional ratio between D-psicose and D-allose in the sugar is about 1:1 to 1:4. A process for producing a complex crystalline sugar comprising D-psicose and D-allose, the process comprising producing a complex crystalline sugar comprising D-psicose and D-allose from a sugar solution containing D-psicose and p-allose and collecting the complex crystalline sugar. The solvent of the sugar solution used in the production of the complex crystalline sugar is water or a mixture of water and ethanol. The sugar solution containing D-psicose and D-allose is produced by a process comprising reacting D-psicose with L-rhamnose isomerase to convert D-psicose into D-allose. The L-rhamnose isomerase is derived from a strain (IPOD FERM BP-08593) belonging to Pseudomonas stutzeri.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.