Hydroxy furanone preparation
US5149840A · kind A · utility
0Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1990 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | May 18, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23L27/215
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
The invention provides a process for the preparation of natural 5-methyl- and 2,5-dimethyl-4-hydroxy-2,3-dihydrofuran-3-one, by heating and reacting a pentose or 6-deoxyhexose in the presence of an amino acid and directly separating, the hydroxyfuranone from the reaction mixture by distillation under reduced pressure. Preferably the distillation is carried out in the presence of a high boiling organic solvent, particularly propylene glycol and glycerol. The amino acid is preferably lysine, proline or hydroxyproline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.