Patent ID: 6190351
Filing Date: 2001-02-20
Classification: A23L,A61M

Abstract:
A delivery system for adding a dye to a nutritional formulation, wherein the delivery system comprises: a core comprising 20 to 70 wt % of a dye, 10 to 40 wt % of a carbohydrate, 2 to 30 wt % of a hydroxypropylalkylcellulose of 9,200 to 125,000 molecular weight, 5 to 25 wt % of an osmagent, 0.5 to 5 wt % of a lubricant, and 0.5 to 12 wt % of a hydroxyalkylcellulose of 30,000 to 50,000 molecular weight; a wall that surrounds the core and comprises 40 to 90 wt % of a member selected from the group consisting of a cellulose ester, cellulose ether and cellulose esterether, 5 to 25 wt % of a poly(vinyl pyrrolidone) of 15,000 to 75,000 molecular weight, and 0.5 to 8 wt % of a polyethylene glycol of 2,000 to 5,000 molecular weight; an overcoat on the wall comprising 10 to 30 wt % of a dye, 35 to 75 wt % of a carbohydrate, 4 to 18 wt % of a hydroxypropylalkylcellulose of 9,200 to 75,000 molecular weight, and 5 to 20 wt % of a polyethylene glycol of 2,000 to 5,000 molecular weight; an exit means in the delivery system, and wherein the overcoat delivers the dye immediately and the core dye delivers the dye over a prolonged period of time up to 25 hours.