OBTAINING SOLUTIONS OF SOLUBLE PROTEIN FROM LEGUMINOUS CROPS Russian patent published in 2017 - IPC A23J1/14 A23J3/14 

FIELD: food industry.

SUBSTANCE: group of inventions relates to food industry. For production of protein product from legumes, having protein content in terms of dry weight (N×6.25) 60–100 wt%, method is implemented as follows. Performing extraction treatment of legume protein source with aqueous solution of calcium chloride, optionally containing an antioxidant, in order to stabilise protein and form an aqueous solution. Partially separating aqueous solution of legume protein from residual quantities of protein source. Optionally diluting with aqueous solution of protein. Adjusting pH of solution to a value from 1.5 to 4.4. Optionally clarifying solution, if it is not transparent. In another version after extraction treatment, method includes dilution and adjusting pH of aqueous solution of legume protein and residues of legume protein source to a value from 1.5 to 4.4 followed by separation of acidified aqueous solution of protein from residues of legume protein source. Optionally concentrating, diafiltering and drying protein solution. Group of inventions enables to obtain a product, which is soluble in water and provides thermally stable solutions in an acidic pH range below 4.4 without protein sedimentation.

EFFECT: group of inventions enables to obtain a product, which is used for enrichment of aqueous systems, including soft drinks and sport beverages.

19 cl, 29 tbl, 18 ex