METHOD FOR PRODUCING REFINED FRAGRANT SUNFLOWER OIL Russian patent published in 2017 - IPC C11B3/00 

FIELD: food industry.

SUBSTANCE: process for producing refined fragrant sunflower oil involves removing free fatty acids, phospholipids, waxes and wax-like substances, colouring compounds, oxidation products and moisture at the stage of gel sorption, with the subsequent stage of control freezing. Wherein the gel sorption is carried out by means of mixing the crude oil with gel solution, stirring, sedimenting, forming and depositing gel precipitate, and separating oil from the gel precipitate. The gel refining is carried out at the temperature of 14-15°C by the modified gel solution with the density of 1.33-1.38 g/cm³ taken with an excess of 35-50% with respect to the desired for free fatty acids chemisorption, and the chemisorption and the gel precipitate sedimentation are carried out for 10-12 hours. The modified gel solution is prepared by means of dissolving in water heated to 60-65°C, sodium metasilicate powder, preferably nonahydrate, before reaching the solution density of 1.35-1.38 g/cm³ with the subsequent introduction of silicon dioxide until obtaining the silicon dioxide ratio to sodium oxide of 1.25-1.35; the gel solution temperature when introduced into the oil should not exceed 22°C. Control freezing is carried out at the temperature of 6°C for 4 hours with the introduction of the sorbent (preferably acetate) in an amount 0.2-0.25% by oil weight with the subsequent filtration at the temperature of 12°C.

EFFECT: invention will allow to improve the refined oil quality due to preserving therein natural taste and flavour, physiologically and biologically active substances, to increase the oil stability during storage and cooking, reducing the number of process stages, to reduce waste, losses, auxiliary materials consumption, to increase the target product yield and to reduce its costs at its manufacturing.

3 cl, 2 tbl, 2 ex