Claims
- 1. A method for the preparation of free-flowing calcium salts of highly unsaturated fatty acids comprising:(a) providing an unsaturated fatty acid feedstock consisting essentially of: (i) from about 50 to about 95% by weight of unsaturated C:16-C:22 fatty acids; (ii) from about 5 to about 40% by weight of saturated C:14-C:22 fatty acids; and (iii) no more than about 6% by weight of moisture, insolubles and unsaponifiables, with no more than about 20% by weight of said unsaturated feedstock being in the form of glycerides; (b) adding to said unsaturated feedstock from about 1.0 to about 2.5 equivalents of calcium oxide relative to the unsaturated feedstock, so that a reactive admixture is formed; and (c) adding to said reactive admixture from about 2 to about 5 equivalents of water relative to said calcium oxide, so that said calcium oxide hydrates and neutralizes said fatty acids to form said calcium salts; provided that when less than 1.75 equivalents of calcium oxide is added, said unsaturated feedstock comprises at least 25% by weight of said saturated fatty acids and is heated to a temperature above its melting point before said step of adding said calcium oxide.
- 2. The method of claim 1, wherein said unsaturated feedstock comprises polyunsaturated fatty acids.
- 3. The method of claim 1, wherein said unsaturated feedstock comprises oleic acid.
- 4. The method of claim 3, wherein unsaturated feedstock comprises greater than about 90% by weight of oleic acid.
- 5. The method of claim 1, wherein less than 1.75 equivalents of said calcium oxide is employed relative to the total amount of said unsaturated feedstock.
- 6. The method of claim 1, wherein said unsaturated feedstock comprises from about 5 to about 30% by weight of PFAD.
- 7. The method of claim 6, wherein less than 1.75 equivalents of said calcium oxide is employed relative to said unsaturated feedstock.
- 8. The method of claim 1, further comprising the step of cooling said admixture and forming a solid, free-flowing and granular fatty acid calcium salt product.
- 9. The method of claim 1, further comprising the step of adding a biologically active material to said admixture.
- 10. The method of claim 9, wherein said biologically active material is an amino acid.
- 11. A free-flowing highly unsaturated fatty acid calcium salt that is stable against oxidation, prepared by the method of claim 1.
- 12. A free-flowing unsaturated fatty acid calcium salt product comprising from about 0.1 to about 1.5 equivalents of calcium hydroxide relative to the fatty acid content of said product, said fatty acid content consisting essentially of(a) from about 50 to about 95% percent by weight of unsaturated C:16-C:22 fatty acids; (b) from about 5 to about 40% by weight of saturated C:14-C:22 fatty acids; (c) no more than about 6% by weight of moisture, insolubles and unsaponifiables, and with no more than about 20% by weight being in for form of glycerides; provided that when less than 0.75 equivalents of said calcium hydroxide calcium oxide is present, said fatty acid content comprises at least 25% by weight of said saturated fatty acids.
- 13. The fatty acid calcium salt product of claim 12, wherein said unsaturated C:16-C:22 fatty acids comprise one or more fatty acids selected from the group consisting of Omega-3 and Omega-6 fatty acids.
CROSS REFERENCE TO RELATED APPLICATION
This application is a Continuation of U.S. patent application Ser. No. 09/675,745 filed Sep. 29, 2000, now U.S. Pat. No. 6,392,075 the disclosure of which is incorporated herein by reference.
US Referenced Citations (7)
Number |
Name |
Date |
Kind |
4642317 |
Palmquist et al. |
Feb 1987 |
A |
4826694 |
McAskie |
May 1989 |
A |
5004728 |
Chalupa et al. |
Apr 1991 |
A |
5143737 |
Richardson |
Sep 1992 |
A |
5250307 |
Cummings et al. |
Oct 1993 |
A |
5416115 |
Erdman et al. |
May 1995 |
A |
6392075 |
Strohmaier et al. |
May 2002 |
B1 |
Continuations (1)
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Number |
Date |
Country |
Parent |
09/675745 |
Sep 2000 |
US |
Child |
10/109379 |
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US |