US5354559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulation with starch hydrolyzate acid esters
Assignee: Grain Processing Corp
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Filing: 1993-04-06
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Granted: 1994-10-11
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Expires: 2013-04-06
Abstract
Abstract Improved encapsulated products comprising a matrix of a starch hydrolyzate acid ester having a water-insoluble material encapsulated therein. In preferred embodiments, a reducing sugar is employed in the encapsulating process and the starch hydrolyzate ester is refined and an acid in combination with an acid salt is used in forming the starch hydrolyzate acid ester.
Inventors
- 👤 Alpha L. Morehouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:44
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/11; A23; A23L; A23L27/00; A23L27/70; A23L27/72; A61K8/18; A61K8/72; A61K8/73; A61K8/732; A61K9/00; A61K9/14; A61K9/16; A61K9/1605; A61K9/1629; A61K9/1652; A61Q; A61Q13/00; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
115 words
A composition comprising a particulate matrix of a starch hydrolyzate acid ester having encapsulated therein a water insoluble material selected from the group consisting of food flavors, perfumes, pharmaceuticals and insecticides, said hydrolyzate acid ester being the reaction product of a substituted succinic or glutaric acid or the anhydrides thereof with a starch hydrolyzate which is refined by carbon treatment and having a dextrose equivalent of about 10 to 30 which is substantially free of granular starch, the substituted succinic or glutaric acid having the formula: ##STR3## wherein R is a radical selected from the group consisting of dimethylene and trimethylene and R 1 is a hydrocarbon substituent selected from alkyl, alkenyl, aralkyl and aralkenyl.
Claim 2
Dependent Claim
115 words
A composition comprising a particulate matrix of a starch hydrolyzate acid ester having encapsulated therein a water insoluble material selected from the group consisting of food flavors, perfumes, pharmaceuticals and insecticides, said hydrolyzate acid ester being the reaction product of a substituted succinic or glutaric acid or the anhydrides thereof with a starch hydrolyzate which is refined by carbon treatment and having a dextrose equivalent of about 10 to 30 which is substantially free of granular starch, the substituted succinic or glutaric acid having the formula: ##STR3## wherein R is a radical selected from the group consisting of dimethylene and trimethylene and R 1 is a hydrocarbon substituent selected from alkyl, alkenyl, aralkyl and aralkenyl.
Claim 3
Dependent Claim
31 words
A composition in accordance with claim 1 wherein said particulate matrix includes a reducing sugar in an amount from about 0.5 to 10% by weight of the starch hydrolyzate acid ester.
Claim 4
Dependent Claim
13 words
A composition in accordance with claim 1 wherein the reducing sugar is glucose.
Claim 5
Dependent Claim
20 words
A composition in accordance with claim 1 wherein the said starch hydrolyzate is refined by treatment with carbon and filtered.
Claim 6
Dependent Claim
20 words
A composition in accordance with claim 4 wherein the starch hydrolyzate acid ester is an ester of octenyl succinic acid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-10 | 1998-04-11 | 1998-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-10 | 2002-04-11 | 2002-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-10 | 2006-04-11 | 2006-10-11 | $7700.00 | Window Closed / Lapsed |