Process for the preparation of extruded delivery systems
US8017060B2 · kind B2 · utility
4Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2004 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Aug 10, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23V2002/00
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
The invention describes a process for the preparation of a granular delivery system particularly useful for the controlled release of flavoring or perfuming ingredients. The process includes the steps of forming a concentrated, highly viscous emulsion of the active compound to be encapsulated, blending the latter with a hydrophilic polymer in an extruder and shaping it into a granular free flowing solid at usual storage temperatures. The process of the invention is particularly appropriate for the encapsulation of volatile molecules as it avoids any dehydration step before or after extrusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.