PROCESS FOR PRODUCING DAIRY PRODUCTS WITH A DEFINED LACTOSE CONTENT

摘要

A process for producing dairy products with a defined lactose content is suggested, comprising the following steps:
(a) Ultrafiltration of a starting milk for producing a first permeate P1 and a first retentate R1;(b) Reverse osmosis of the first permeate P1 for producing a second permeate P2 and a second retentate R2;(c) Decalcification of the second retentate R2;(d) Ultrafiltration of the decalcified product of step (c) for producing a third permeate P3 (lactose concentrate) and a third retentate R3 (mineral concentrate);(e) Mixing the first retentate R1 with such an amount of the third permeate P3 and the third retentate R3 each so that a standardized dairy product with a defined concentration of lactose and salts is obtained.

主权项

1. A process for producing dairy products with a defined lactose content, comprising the following steps:
(a) subjecting a starting milk to ultrafiltration for producing a first permeate P1 and a first retentate R1; (b) subjecting said first permeate P1 to reverse osmosis for producing a second permeate P2 and a second retentate R2; (c) subjecting said second retentate R2 to decalcification; (d) subjecting the product of step (c) to ultrafiltration for producing a third permeate P3 (lactose concentrate) and a third retentate R3 (mineral concentrate); (e) mixing the first retentate R1 with an amount of the third permeate P3 and the third retentate R3 each such that a standardized dairy product is obtained with defined concentrations of lactose and salts or minerals; and (f) hydrolyzing the standardized dairy product of step (e) while adding an amount of lactase such that a residual amount of lactose still contained in the product is completely broken down into glucose and galactose.