Hydroxycitric acid salt composition and method of use for reducing body weight
AssigneeUnibar Corporation
InventorsSunil BHASKARAN, Sevanti MEHTA
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Abstract
Disclosed is a hydroxycitric acid salt composition comprising a mixture of calcium and potassium salts of hydroxycitric acid, preferably in a defined proportion. The HCA salts are prepared by a process that includes treating an aqueous extract of Garcinia cambogia or Garcinia indica fruit with a liquid quaternizing agent such as a trialkylamine in which the alkyl groups are octyl, caprylyl, isooctyl, lauryl or decyl. The process yields a very pure, stabilized mixed salt composition that is free of potentially toxic chemical residues, and is substantially tasteless for optimal use in a variety of foods, beverages and dietary supplements.
Claims19
A hydroxycitric acid salt composition prepared by a method comprising:
- (a) preparing an aqueous extract of Garcinia cambogia or Garcinia indica fruits and extracting said aqueous extract with a liquid quaternizing agent comprising a trialkylamine in which the alkyl groups are selected from the group consisting of octyl, caprylyl, isooctyl, lauryl, decyl, and combinations thereof, to yield a quaternizing agent extract that contains hydroxycitric acid;
- (b) treating said quaternizing agent extract with potassium hydroxide or sodium hydroxide and recovering a potassium hydroxycitric acid salt solution or a sodium hydroxycitric acid salt solution;
- (c) decolorizing said potassium or sodium hydroxycitric acid salt solution, to provide a decolorized potassium or sodium hydroxycitric acid salt solution;
- (d) treating said decolorized potassium or sodium hydroxycitric acid salt solution with a calcium salt such that a heterogeneous slurry comprising insoluble calcium hydroxycitric acid salt precipitate is obtained, wherein said treating comprises adjusting the pH of said decolorized solution to a pH in the range of 9.5-11;
- (e) washing and drying said precipitate to yield a powder comprising the calcium salt of hydroxycitric acid;
- (f) obtaining an aqueous solution comprising the potassium salt of hydroxycitric acid, prepared as in (a)-(c);
- (g) dissolving said powder comprising the calcium salt of hydroxycitric acid in said potassium hydroxycitric acid salt solution to provide a potassium-calcium hydroxycitric acid salt solution, wherein said dissolving comprises combining said calcium hydroxycitric acid salt and said potassium hydroxycitric acid salt solution in a molar ratio in the range of about 1.9-2.9 calcium hydroxycitric acid salt:
- about 0.9-1.4 potassium hydroxycitric acid salt;
- (h) drying said potassium-calcium hydroxycitric acid salt solution to yield a powder comprising a mixture of potassium hydroxycitric acid salt and calcium hydroxycitric acid salt.
Dependencies are inferred from the claim text.