Polysaccharide capsules and method of preparation
US9017720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2011 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Nov 6, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/4816
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to seamless capsules and methods for making seamless capsules having a high oil content as described herein. More specifically, the present invention is directed to seamless capsules, and methods for making seamless capsules, made from a process involving the steps of: (a) preparing an emulsion comprising oil, water, an emulsifier, and at least one of a water-soluble monovalent metal salt, polyvalent metal salt, and an acid, wherein said oil is present in an amount of at least 50% by weight of said emulsion; with the proviso that said emulsion does not contain marmelo mucilage; and (b) adding portions of said emulsion to an aqueous gelling bath comprised of at least one ionic polysaccharide thereby encapsulating said portions of said emulsion in a polysaccharide gel membrane, and optionally (c) drying the resulting capsules by removing water.Improved methods are described for preparing seamless capsules comprising oil and water emulsions containing high concentrations of oil, where the emulsions are suitable for encapsulation into capsules of a polysaccharide gel. Of particular interest are emulsions of oil and water, where the oil is present in an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.