We propose a simple and eco-friendly method for the formation of composite protein-mineral- microcapsules induced by ultrasound treatment. Protein- and nanoparticle-stabilized oil-in-water (O/W) emulsions loaded with different oils are prepared...

A consistent mechanism of protein microcapsule formation upon ultrasound treatment is proposed. The evidence for this mechanism is based on experimental data from SDS-PAGE, Raman spectroscopy and dynamic light scattering.

SFM results for protein and composite microcapsules are evaluated by the Reissner model. Protein capsules show higher Young’s moduli due to crosslinking, which is absent in composite capsules because of restrictions in the protein conformations.