Process for crystallizing L-.alpha.-aspartyl-L-phenylanlanine methyl ester
US5874609A · kind A · utility
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3Claims
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Key dates
| Filing date | Aug 26, 1997 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Aug 26, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23G2200/10
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A crystalline L-alpha-aspartyl-L-phenyl-alanine methyl ester product is disclosed. The product is obtained by crystallizing the ester from an aqueous solution, by cooling. The initial concentration of ester in the aqueous solution used provides at least 10 grams of precipitated solid phase per liter of solution. The solution is cooled through conductive heat transfer without effecting forced flow to form a sherbet-like pseudo solid phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.