The Milk Solids-Not-Fat
It comprises lactose, casein, whey proteins, minerals, vitamins,
and other minor components of the milk ormilk products from
which they were derived (e.g., skim milk powder, condensed
milk, and whey protein concentrate ingredients). Proteins contribute
much to the development of the structure of ice cream,
including emulsification, whipping, and water-holding capacity.
Whipping of proteins in ice cream contributes to the formation
of the initial air bubbles in the mix. Emulsification of proteins in
the mix arises from their adsorption to fat globules due to
homogenization. Viscosity of mix is enhanced due to waterholding
capacity of proteins, which imparts a desired body to
the ice cream, increases the meltdown time of ice cream, and
contributes to reduced iciness.
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