The present application discloses a process for the purification of a neutral human milk oligosaccharide (neutral HMO). The process uses simulated moving bed (SMB) chromatography which allows the continuous purification of large quantities of HMOs with high purity. Contrary to chemical synthesis routes of neutral HMOs, and their subsequent purification, the presented process allows the provision of HMOs free of noxious chemicals, such as e.g. trace amounts of heavy metals or organic solvents. The individual neutral HMO product may be obtained in solid form by spray drying or as a concentrated syrup. The provided neutral HMO is very well-suited for use in food applications.
