Process for preparing dry crystals of the methyl ester of .alpha.-L-aspartyl-L-phenylalanine, having improved solubility
US5543554A · kind A · utility
7Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1995 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Feb 28, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23G2200/10
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A process for obtaining dry crystals of .alpha.-L-aspartyl-L-phenylalanine methyl ester having a water content of about 2 wt. % to about 6 wt. % based on the weight of the wet crystals is disclosed. This process comprises exposing wet crystals of .alpha.-L-aspartyl-L-phenylalanine methyl ester, having a water content not greater than 50 wt. % based on the weight of the wet crystals and obtained by the crystallization of .alpha.-L-aspartyl-L-phenylalanine methyl ester from an unagitated solution of .alpha.-L-aspartyl-L-phenylalanine methyl ester, to a flow of air having a temperature of 80.degree. C. to 200.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.