METHOD FOR PRODUCING OF PROTEIN CONCENTRATE FROM SUNFLOWER OIL CAKE Russian patent published in 2003 - IPC

FIELD: feed production. SUBSTANCE: method involves extracting protein from oil cake for 50-70 min with the use of solution including sodium chloride and sodium hydroxide used in the ratio, wt%: sodium chloride 5.8-6.2, sodium hydroxide 0.3-0.5, water the balance, at the rate of 1 weight part of oil cake to 7-8 weight parts extractant; separating and treating extract with hydrochloric acid solution until protein is settled with pH value of 3-4; separating insoluble protein sediment; providing air drying of protein sediment in sprayer-type drier. EFFECT: increased protein substance yield owing to more complete extraction of protein, reduced losses and simplified production method. 2 ex