A novel method of preparing stable zein nanoparticle dispersions for encapsulation of peppermint oil

Zein is a group of alcohol-soluble maize proteins and is typically dissolved in 70–80% aqueous ethanol before dispersion into water to precipitate zein as nanoparticles, which can simultaneously encapsulate various lipophilic compounds co-dissolved in aqueous ethanol. However, strategies are needed to prevent the precipitation of hydrophobic zein nanoparticles at a wide pH range and the use of flammable ethanol in the industrial production. The...