High-purity steviol glycosides
US8981081B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2011 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Nov 17, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2236/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods of preparing highly purified steviol glycosides, particularly Rebaudioside D, are described. The methods include purification from the extraction stage of the Stevia rebaudiana Bertoni plant, purification of steviol glycoside mixtures, Rebaudioside D and Rebaudioside A from a commercial Stevia extract, and purification of Rebaudioside D from remaining solutions obtained after isolation and purification of Rebaudioside A and a high purity mixture of steviol glycosides. The methods are useful for producing high purity Rebaudioside D, Rebaudioside A, and steviol glycoside mixtures. The high purity steviol glycosides are useful as non-caloric sweeteners in edible and chewable compositions such as any beverages, confectioneries, bakery products, cookies, and chewing gums.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.