Claims
- 1. A composition comprising a tri-, tetra-, or penta-metal complex salt of hydroxycitric acid wherein the salt comprises at least three different metals selected from zinc, magnesium, sodium, potassium, and calcium.
- 2. The composition of claim 1, comprising a tetra- or penta-metal complex salt of hydroxycitric acid wherein the salt comprises at least four different metals selected from zinc, magnesium, sodium, potassium, and calcium.
- 3. The composition of claim 1, comprising a penta-metal complex salt of hydroxycitric acid wherein the salt comprises at least five different metals selected from zinc, magnesium, sodium, potassium, and calcium.
- 4. The composition of claim 1, wherein the concentration of hydroxycitric acid is 40 to 75 wt %.
- 5. The composition 1 of claim, further comprising a lactone of hydroxycitric acid.
- 6. A process for preparing a tri-, tetra-, or penta-metal complex salt of hydroxycitric acid having at least three different metals comprising:
preparing liquid hydroxycitric acid, reacting the liquid hydroxycitric acid with a mixture of bases comprising at least three of zinc, magnesium, sodium, potassium, and calcium bases, to form a solution, and spray drying the solution to afford the tri-, tetra-, or penta-metal complex salt of hydroxycitric acid.
- 7. The process of claim 6, wherein the temperature of spray drying is at about 150 to 200° C.
- 8. The process of claim 6, the step of preparing liquid hydroxycitric acid comprising:
extracting hydroxycitric acid from Garcinia rind with demineralized water at room temperature to form an extraction solution, treating the extraction solution with a calcium base until a neutral pH is reached to form insoluble calcium hydroxycitrate, filtering out the calcium hydroxycitrate and then mixing the calcium hydroxycitrate with water and 10% sulphurous acid to form insoluble calcium sulfite, and filtering out the calcium sulfite to leave liquid hydroxycitric acid.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to PCT/IN03/00192 filed May 19, 2003 and designating the United States.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/IN03/00192 |
May 2003 |
US |
Child |
10822867 |
Apr 2004 |
US |