Patent ID: 8263162
Filing Date: 2012-09-11
Classification: A23G,A23L,A23V

Abstract:
1. A method of forming a natural sweetener from a heat-processed fruit extract of luo han guo, the method comprising: preparing an aqueous slurry of the heat-processed fruit extract of luo han guo, the heat-processed fruit extract including an amount of mogrosides, color, odor, and taste defining components, water-insoluble components, and water-soluble components; removing at least a portion of the water-insoluble components from the aqueous slurry to form a clarified solution; exposing the clarified solution to an ion exchange resin which consists essentially of an anion exchange resin to effect removal of at least a portion of the undesired color and taste defining components to form an ion exchange resin treated solution, the clarified solution being exposed to the ion exchange resin to the substantial exclusion of a cationic resin to effect recovery of at least about 90% of the mogrosides that were in the heat processed fruit extract; removing from the ion exchange resin treated solution at least a portion of the water-soluble components having a molecular weight less than a molecular weight of the mogrosides in the anion exchange resin treated solution to form the natural sweetener which has at least about 90% of the mogrosides that were in the heat processed fruit extract; wherein the natural sweetener includes at least about 60 percent less of the odor defining components relative to the heat-processed fruit extract and at least about 50 percent less of the color and taste defining components relative to the heat-processed fruit extract; and wherein the natural sweetener has less than about 0.5 percent of the water-insoluble components based on a total weight of the natural sweetener.