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Method for prevention of oxidation of oils and fats and soft capsules containing the treated oils and fats

  • US 4,525,306 A
  • Filed: 08/03/1982
  • Issued: 06/25/1985
  • Est. Priority Date: 09/21/1981
  • Status: Expired due to Fees
First Claim
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1. A soft gelatin capsule filled with an edible fish oil containing eicosapentaneoic acid and docosahexaenoic acid, said edible fish oil containing admixed therewith from 0.01 to 10 percent by weight of an antioxidant component, based on the weight of said oil, said antioxidant component having been obtained by extracting (A) a starting material selected from the group consisting of herb spices, residues obtained after collecting essential oils from herb spices, oleoresins obtained by extracting herb spices with a polar solvent, oleoresins obtained by extracting herb spices with a non-polar solvent and residues remaining after extraction of herb spices, with (B) a polar solvent whereby to obtain an extract, then steam distilling the extract and then recovering the insoluble part from the residue of the steam distillation, as said antioxidant component.

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