4. Conclusion
This study presents a feasible alternate process for the production of infant formula utilising less processing steps. Upstream homogenisation of model infant formulations was achieved using a high shear dispersion head/colloid mill, which also served to hydrate the dried ingredients. The benefit of this type of homogenisation is a more efficient process. Heat treatment of formulations using high velocity steam injection increased the colloidal stability of the formulations. Overall the new process is capable of producing stable high solids emulsion suitable for spray drying, without the use of evaporation.