METHOD FOR OBTAINING A SOLID PHOSPHOLIPID CONCENTRATE Russian patent published in 2022 - IPC C11B1/10 A23L29/00 A23J7/00 C07F9/10 

FIELD: food industry.

SUBSTANCE: invention relates to the food industry. The method for producing solid lecithin is characterized in that a liquid phospholipid concentrate from soybean oil containing 55% of substances insoluble in cold acetone and 45% of neutral triglycerides, or its solution in an organic solvent such as acetone, hexane, methylene chloride or chloroform, is fed into a flow of supercritical carbon dioxide, the liquid phospholipid concentrate or its solution in an organic solvent is extracted under pressure through a spray nozzle, the extraction temperature is 40–80°C, the pressure is 200–500 atm, the ratio of the mass of the liquid phospholipid concentrate to the mass of dioxide carbon per unit time is from 1:1 to 1:500, the duration of the extraction process is 1–90 minutes, the solution of neutral triglycerides in CO₂ is subjected to decompression in the separator, the solid phospholipid concentrate is filtered under pressure to obtain the finished product.

EFFECT: invention makes it possible to increase the degree of degreasing of a liquid phospholipid concentrate during CO₂ extraction in a spray mode.

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