Powder and Reconstituted Properties of Commercial Infant and Follow-On Formulas.

The physical properties of 15 commercially available infant formulas (IF) and follow-on (FO) formulas were analysed. Powders made with intact milk proteins were classified into two groups; Type I-homogenous mixtures of milk powder particles ( = 6); and Type II-heterogeneous mixtures of milk powder particles and tomahawk-shaped α-lactose monohydrate crystals ( = 6). Powders made using hydrolysed proteins were classified as Type III powders ( = 3).