METHOD FOR PRODUCTION OF ULTRAFILTRATION BIOCURD Russian patent published in 2019 - IPC A23C19/76 A23C9/142 

FIELD: food industry.

SUBSTANCE: invention relates to food industry, in particular, to dairy industry. Method involves microfiltration of skim milk using ceramic membranes with a pore diameter of 0.8 mcm at a temperature of 30 ± 5 °C and pressure of 0.3 MPa. In microfiltration, the incoming stream is divided into two fractions: permeate and concentrate. Leaven is added to the permeate, the clot is stirred, heated to a temperature of 45 °C and fed to the ultrafiltration installation using ceramic membranes with a pore diameter of 0.01 mcm at a temperature of 53 ± 2 °C and pressure 0.5 MPa. Process of concentration is carried out to achieve a solids content of 20 %. Concentrate obtained during the separation process is a solution of a creamy structure with a dry solute content of about 20 %. Permeate is a clear solution with a weak yellow-green color. Concentrate is cooled to a temperature of 8 ± 2 °C, pre-packed, packed and labeled.

EFFECT: invention makes it possible to preserve whey proteins in the product and increase its shelf life.

1 cl, 1 ex, 2 tbl