Encapsulated polyunsaturated fatty acids
OwnerSergio Valentinotti, Luc Armanet +1inventors
InventorsSergio Valentinotti, Luc Armanet, Joelle Porret
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Abstract
The present invention relates to process for the preparation of particles comprising an oil comprising polyunsaturated fatty acids (PUFA), to particles susceptible to be obtained by the process and to a method for increasing stability of PUFAs in oils at temperatures above 70° C. The process involves the step of preparing an emulsion of an oil rich in PUFAs within carbohydrate matrix and extruding the emulsion into a cold liquid to obtain a glassy material in the form of particles enclosing the oil rich in PUFAs. The invention further relates to food products comprising the particles of the invention.
Claims19
A process for the preparation of particles comprising an oil rich in polyunsaturated fatty acids (PUFA), the method comprising the steps of:
- adding water to at least one carbohydrate material to obtain an aqueous mixture;
- heating the aqueous mixture to form a concentrated syrup;
- emulsifying the oil rich in PUFAs, optionally comprising antioxidants, in the concentrated syrup to obtain an emulsion;
- extruding the emulsion through a die to obtain an extruded emulsion;
- cooling the extruded emulsion by putting or dropping it into a cold liquid to form a solid extruded material;
- washing the solid extruded material with a solvent liquid, and,
- drying it.
A particle comprising an oil rich in PUFAs dispersed in a carbohydrate material, wherein the particle has a residual surface oil content being ≦0.2% of the total weight of the particles.
A method for preventing oxidation and/or for increasing stability of PUFAs in oils at temperatures above 70° C., the method comprising the step of adding to the oil at least 1.5% lecithin by weight of oil prior to exposure of the oil to the temperature above 70° C.
Dependencies are inferred from the claim text.