The crystallisation properties of milk fat emulsions containing dairy-based ingredients as functions of
emulsion droplet size, cooling rate, and emulsifier type were investigated using a differential scanning
calorimeter (DSC). Anhydrous milk fat and its fractions (stearin and olein) were emulsified with whey
protein concentrate, sodium caseinate, and Tween80 by homogenisation to produce emulsions in various
size ranges (0.13–3.10 lm). Particle size, cooling rate, and types of emulsifier all had an influence on the
crystallisation properties of fat in the emulsions. In general, the crystallisation temperature of emulsified
fats decreased with decreasing average droplet size and was of an exponent function of size, indicating
that the influence of particle size on crystallisation temperature is more pronounced in the sub-micron
range. This particle size effect was also verified by electron microscopy.
The crystallisation properties of milk fat emulsions containing dairy-based ingredients as functions of
emulsion droplet size, cooling rate, and emulsifier type were investigated using a differential scanning
calorimeter (DSC). Anhydrous milk fat and its fractions (stearin and olein) were emulsified with whey
protein concentrate, sodium caseinate, and Tween80 by homogenisation to produce emulsions in various
size ranges (0.13–3.10 lm). Particle size, cooling rate, and types of emulsifier all had an influence on the
crystallisation properties of fat in the emulsions. In general, the crystallisation temperature of emulsified
fats decreased with decreasing average droplet size and was of an exponent function of size, indicating
that the influence of particle size on crystallisation temperature is more pronounced in the sub-micron
range. This particle size effect was also verified by electron microscopy.
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