Emulsification is an important mean to deliver the hydrophobic bioactive compounds into a range of food products (Fig. 6). Acoustic emulsification offers the following improvements over conventional methods [105]:
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The emulsion produced has particles in the sub-micron range with an extremely narrow particle size distribution.
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The emulsions are more stable.
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Addition of a surfactant to produce and stabilize the emulsion is not necessary.
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The energy needed to produce an emulsion by acoustic waves is less than that needed in conventional methods.