PROCESS FOR THE HUMANIZATION OF ANIMAL SKIM MILK AND PRODUCTS OBTAINED THEREBY Russian patent published in 2018 - IPC A23J1/20 A23J3/08 A23J3/10 

FIELD: food industry.

SUBSTANCE: group of inventions relates to dairy industry. Microfiltration (MF) of animal skim milk is carried out over a ceramic membrane having a porosity of 0.10–0.30 micrometer or over a spiral wound organic membrane having a porosity of 0.10–0.35 micrometer, with volume concentration factor of 4–8, resulting in a retentate MF and a permeate MF. Ultrafiltration (UF) of a liquid composition originating from the permeate MF is carried out over a membrane having a molecular weight cut-off of at most 25 kDa and with a volume concentration factor of 3–7, resulting in a retentate UF and a permeate UF. Composition originating from the retentate MF and a composition originating from the retentate are mixed, wherein a composition having a casein/whey weight ratio of 30/70–50/50. Provided are other options of the preparation an infant formula base product. Ultrafiltration retentate composition obtained at the ultrafiltration stage comprises not more than 1 wt% casein and 22–33 wt% whey proteins based on total dry weight of the composition, wherein the phosphorus/protein weight ratio being between 1/40 and 1/100. Process for the preparation of an infant formula base product comprises mixing the ultrafiltration retentate composition with a casein source, whereby the composition is obtained with a weight ratio of casein/serum of 30/70–50/50.

EFFECT: obtaining a product in the form of balanced infant food, containing mainly not denatured whey proteins.

19 cl, 4 tbl, 1 ex