Processing whey or raw milk

摘要

A process for the demineralisation and fractionation of cheese whey or raw milk comprising the steps of subjecting the whey or raw milk to ultrafiltration to provide a retentate fraction and a permeate fraction, concentrating the permeate fraction by means of nanofiltration, subjecting the nanofiltration retentate to ion permeation chromatography at an elevated temperature of between 50°C and 80°C using an appropriate resin and 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.