Rebaudioside A composition and method for purifying rebaudioside A
US8791253B2 · kind B2 · utility
13Cited by
29References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2007 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | May 21, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23V2002/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Exemplary embodiments of this invention encompass a method for purifying crude rebaudioside A. In particular, this invention relates to a method for purifying crude rebaudioside A compositions comprising purities from approximately 40% to approximately 95% rebaudioside A to obtain a substantially pure rebaudioside A product with a single crystallization step. Resulting polymorph and amorphous forms of rebaudioside A and methods for preparing polymorph and amorphous forms of rebaudioside A from crude rebaudioside A compositions and substantially pure rebaudioside A compositions also are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.