Sugar-enriched extract derived from tobacco
US9661876B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Mar 3, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure describes methods of obtaining and/or deriving a sugar-enriched extract from plants of the Nicotiana species and methods for incorporation of such extracts into various tobacco compositions. One exemplary method for preparing a sugar-enriched extract comprises contacting Nicotiana plant material with a solvent and extracting sugars into the solvent to form a liquid sugar-containing extract; separating a solid extracted plant material from the liquid sugar-containing extract; clarifying the liquid sugar-containing extract to form a clarified sugar-containing extract and a solids fraction; and isolating the liquid sugar-containing extract to provide a sugar-enriched extract comprising a combined weight of fructose and glucose of at least about 10% by dry weight. In certain embodiments, the sugars of the extract comprise at least about 50% by weight fructose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.