Patent ID: 9381485
Filing Date: 2016-07-05
CPC Classification: B01J

Claim Text:
1. A method of encapsulating a volatile, water-soluble substance, comprising: (i) providing blank cross-linked capsules having a hydrogel shell and an oily interior; (ii) immersing said capsules in an aqueous solution of the volatile, water-soluble substance for a time sufficient for them to load to a desired extent with the volatile, water-soluble substance, the aqueous solution having dissolved therein to saturation point at least one water-soluble sugar, wherein the volatile, water soluble substance is selected from the group consisting of butyric acid, acetic acid, diacetyl, acetoin, acetaldehyde and furfuryl alcohol; and (iii) adding potato starch as a desiccating agent to the loaded capsules, the desiccating agent at least partially inducing desiccation of the hydrogel shell, wherein the weight ratio of potato starch to volatile, water soluble substance is at least about 5:1.