Whey or raw milk demineralisation and fractionation

摘要

A process for the demineralization and fractionation of cheese whey or raw milk comprising the steps of: a) subjecting the whey or raw milk to ultrafiltration to provide a retentate fraction and a permeate fraction; b) concentrating the permeate fraction by means of nanofiltration; c) subjecting the nanofiltration retentate to ion permeation chromatography at elevated temperatures of between 50° C. and 80° C. using an appropriate resin; and d) eluting the nanofiltration retentate with water in various fractions to obtain fractions which may be low in mineral content and/or high in 3′-sialyl lactose content and/or high in other desirable components.

主权项

1. A process for the demineralisation and fractionation of whey or raw milk the process consisting essentially of:
a) subjecting the whey or raw milk to ultrafiltration to provide a retentate fraction and a whey permeate; b) concentrating the whey permeate by nanofiltration to provide a concentrated lactose rich retentate; c) subjecting the nanofiltration retentate to ion permeation or ion exclusion chromatography at elevated temperatures of between 50° C. and 80° C., using an appropriate resin; d) eluting the nanofiltration retentate in various fractions from the resin using water as the eluent; e) eluting a lactose rich fraction from (d) with low mineral content from the ion permeation chromatography resin; and f) adding the lactose rich fraction from (e) to the ultrafiltration retentate fraction obtained from (a) to provide demineralised whey.