Starch based encapsulation process
US4812445A · kind A · utility
52Cited by
26References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1987 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Apr 23, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23P10/30
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
Virtually any material may be encapsulated in a starch matrix by combining the material with a high temperature-stabilized dispersion of starch, optionally in the presence of salt. The temperature-stabilized starch dispersion acts as a protective colloid, encasing the material to be encapsulated. Upon subsequent rapid cooling of this mixture on a chilled surface the starch polymer chains collapse upon themselves, forming a firm sheet or the like and encapsulating the core material. The sheet can then be cut, chopped or sliced in the wet state, then dried and ground to yield particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.