Extraction of olives for obtaining antioxidant compositions
AssigneeNestec S.A.
InventorsRobert Aeschbach, Umberto Bracco, Patricia Rossi
Life of this patent
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Abstract
Antioxidant compositions for protecting food and cosmetic products from oxidation are isolated from olives by grinding olives to obtain ground olive material which then is dried and then the dried material is pressed which provides for recovering and obtaining, from the pressing, a lipid composition separate from a pressed olive cake, the lipid composition containing lipid-soluble and water-soluble antioxidants. Additionally, further treatment of the cake material by combining a medium chain triglyceride, glycol, or a C2-C6 alkyleneglycol with the cake material and then pressing under a pressure of at least 40 bar provides for recovering and obtaining water-soluble antioxidants from the cake material.
Claims20
A process for isolating antioxidant compositions from olives comprising grinding olives to obtain ground olive material, drying the ground olive material under reduced-pressure vacuum conditions to reduce the water content of the olive material to obtain dried olive material and pressing the dried olive material and recovering and obtaining, from the pressing, a composition, which comprises lipids and antioxidant substances, separate from pressed olive cake material.
A process for protecting a food product or cosmetic product from oxidation comprising incorporating antioxidant compositions into the food or cosmetic product wherein the antioxidant compositions have been obtained by a process which comprises grinding olives to obtain ground olive material, drying the ground olive material under reduced-pressure vacuum conditions to reduce the water content of the olive material to obtain dried olive material and pressing the dried olive material and recovering and obtaining, from the pressing, a composition, which comprises lipids and antioxidant substances, separate from pressed olive cake material.
A process for protecting a food product or cosmetic product from oxidation comprising incorporating antioxidant compositions into the food or cosmetic product wherein the antioxidant compositions have been obtained by a process which comprises:
- grinding olives to obtain ground olive material, drying the ground olive material under reduced-pressure vacuum conditions to reduce the water content of the olive material to obtain dried olive material and pressing the dried olive material and recovering and obtaining, from the pressing, a composition, which comprises lipids and antioxidant substances, separate from pressed olive cake material;
- combining an extraction substance selected from the group consisting of medium-chain triglycerides, of glycol and of a C2-C6 alkyleneglycol with the pressed olive cake material and with the combined extraction substance and cake material at a temperature higher than room temperature, pressing the combined extraction substance and cake material under a pressure of at least 40 bar and recovering and obtaining, from the pressing, an extract separate pressed from the further cake material;
- and
- incorporating the extract into the food or cosmetic product so that the product contains the extract in an amount of from 0.5% to 4% by weight.
Dependencies are inferred from the claim text.