US 10,981,136 B2 · Natural water-insoluble encapsulation compositions and processes for preparing same

Abstract

The present invention relates to dry particulate encapsulation compositions comprising a water-insoluble matrix comprising at least 70% by weight of proteins, based on the total weight of the matrix and a moisture content of about 5 to 10% by weight, based on the total weight of the matrix and an encapsulate encapsulated in the matrix, wherein the matrix once wetted in a clear colorless aqueous solution or in mineral oil has a lightness value (L*) greater than about 40, a color vividness or Chroma (C*) lower than about 33 and a hue angle between about 70 and 90. The encapsulation compositions of the present invention are useful in encapsulating dyes, medications and vitamins. Fine particulate encapsulation compositions comprising natural dyes can be used in lieu of artificial lakes in confectionery, cosmetics and caplets color coatings.

Claims24

Dependent claims

A process for extrusion encapsulation, the process comprising:

(i) providing an agent to be encapsulated and a water-insoluble protein-rich mixture;
(ii) mixing said agent, said water-insoluble protein-rich mixture, and water in an extruder at high shearing and pressure to raise the temperature, thereby enabling the formation of a melt;
and
(iii) cooling the melt and extruding at low temperature and high moisture sufficient to minimize browning of the water-insoluble protein by the Maillard reaction, thereby encapsulating said agent in a water-insoluble protein-rich matrix.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/933,852Filed 23 Mar 2018 · continuation

Priority

22 Dec 2004

Published

US 2018/0207603 A126 Jul 2018

Granted

20 Apr 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification25 codes

B01J 13/04
Making microcapsules or microballoons: by physical processes, e.g. drying, spraying
A23L 5/43
Addition of dyes or pigments, e.g. in combination with optical brighteners: using naturally occurring organic dyes or pigments, their artificial…
A23L 5/44
Using naturally occurring organic dyes or pigments, their artificial duplicates or their derivatives: using carotenoids or xanthophylls
A23L 5/47
Addition of dyes or pigments, e.g. in combination with optical brighteners: using synthetic organic dyes or pigments not covered by groups…

Family

Application60/637,730Us provisional application · filed 22 Dec 2004

PCT/CA2005/001853Parent of this continuation · filed 6 Dec 2005

US 2018/0207603 A1Pre-grant publication · published 26 Jul 2018

Application11/793,755Parent of this continuation

US 2008/0160084 A1Published application

US 10,981,136 B2This patent

From the US filing history. Foreign family members aren’t listed.

Natural water-insoluble encapsulation compositions and processes for preparing same

Life of this patent

Natural water-insoluble encapsulation compositions and processes for preparing same

Life of this patent

Abstract

Claims24