METHOD FOR PRODUCTION OF WATER-SOLUBLE POLYPEPTIDE COMPLEX OF SALMON FISHES LIVER Russian patent published in 2011 - IPC A23L1/325 A23L1/30 A23L1/305 A23J1/04 A23J3/04 

FIELD: food industry.

SUBSTANCE: invention relates to food industry, namely, to production of biologically active additives based on water-soluble proteins contained in salmon fishes liver. The method involves initial raw material selection, extraction, solid fraction separation, target product decontamination and drying. The initial raw material is represented by salmon fishes liver (fresh, frozen or dried). Extraction is performed with distilled water, the raw material to extractive agent ratio being 1:5 -1:30 which is followed by the suspension alkalisation till pH is 8-9 and infusion at room temperature during 2-4 h accompanied by stirring. Then one proceeds with the target product decontamination by way of the solid fraction treatment with a 0.3% solution of chitosan in a 3% solution of an organic food acid, pH being 2.5-3.0 in a 1:20 ratio during 1 h accompanied by stirring with subsequent incubation of the mixture during 2-3 h. One performs double separation into the solid and the liquid fractions with subsequent depletion of the liquid fractions.

EFFECT: invention allows to produce a water-soluble polypeptide complex of salmon fishes liver which is characterised by a balanced amino acid composition, an enhanced taurine content and a high antioxidant activity.

2 cl, 3 dwg, 1 tbl, 4 ex