LOW-LACTOSE AND LACTOSE-FREE MILK PRODUCT AND ITS MANUFACTURE METHOD Russian patent published in 2015 - IPC A23C9/00 B01D61/00 

FIELD: food industry.

SUBSTANCE: inventions group relates to food industry. The low-lactose and lactose-free milk product manufacture method involves lactose hydrolysis in milk raw materials, hydrolysed milk raw materials ultrafiltration to concentrate proteins in UF-retentate and obtain UF-permeate containing sugar, nanofiltration (NF) of UF-permeate for separation of sugar into NF- retentate and minerals - into NF-permeate and manufacture of a lactose-free or low-lactose milk product with the preset composition and sweetness containing UF-permeate obtained at Stage b) and NF-permeate obtained at Stage c) essentially without addition of water and without addition of a lactase enzyme into the manufactured milk product for hydrolysis of the remaining lactose in the product. The product obtained at Stage b) can be concentrated to produce a concentrate or powder. Additionally, lactose-free or low-lactose product versions are proposed.

EFFECT: inventions group ensures manufacture of a product without organoleptic flaws in terms of taste and structure in comparison with equivalent products conventional in view of the technology level and related to lactose content reduction; all the initial milk components including calcium are preserved in the product.

14 cl, 15 tbl, 11 ex