Nanoemulsion Production by Simple and Low Energy Method

Abstract

Oil-in-water nanoemulsions have been applied as oil encapsulated systems in drugs, foods, drinks, cosmetics, and active food packaging. Their advantage is having higher stability against phase separation compared to conventional emulsions. Nanoemulsions can be produced without using any expensive high shear or high energy homogenizers by using a method called spontaneous emulsification. Emulsions are formed by itself during stirring the mixtures composed of oils, surfactants, and water. Currently, researchers are developing nanoemulsion production systems by using different types of surfactants and oils, different proportions between surfactants and oils, different stirring conditions, and different types of additional solvents. These aimed to optimize the conditions for spontaneous emulsification in order to upscale the systems to industrial production level in the future.