Taken together, the results of this study point to a range of different
effects of emulsion droplet size on the crystallisation behaviour
of dairy-based nanoemulsions, which appears associated with
the nature of components in emulsion systems, as well as with the
physical limits and properties of particle size itself. From the food
application point of view, the outcome of this study underlines the
significance of particle size, choice of emulsifiers and process (cooling
rate and temperature) on crystallisation of food-ingredient
nanoemulsions. Some of these physico-chemical parameters are
different from those applying to conventional emulsions. These
distinct properties of dairy nanoemulsions may provide the basis
for a new means of modifying the physical, functional or rheological
properties of fat-containing food products or encapsulation
and delivery systems. Further work needs to be done to establish
role of nano-droplet template crystals in determining properties
of dairy or food products. Investigation of crystal polymorphs using
X-ray diffraction technique was not presented here but will be covered
in continuing research.
Taken together, the results of this study point to a range of differenteffects of emulsion droplet size on the crystallisation behaviourof dairy-based nanoemulsions, which appears associated withthe nature of components in emulsion systems, as well as with thephysical limits and properties of particle size itself. From the foodapplication point of view, the outcome of this study underlines thesignificance of particle size, choice of emulsifiers and process (coolingrate and temperature) on crystallisation of food-ingredientnanoemulsions. Some of these physico-chemical parameters aredifferent from those applying to conventional emulsions. Thesedistinct properties of dairy nanoemulsions may provide the basisfor a new means of modifying the physical, functional or rheologicalproperties of fat-containing food products or encapsulationand delivery systems. Further work needs to be done to establishrole of nano-droplet template crystals in determining propertiesof dairy or food products. Investigation of crystal polymorphs usingX-ray diffraction technique was not presented here but will be coveredin continuing research.
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