Preparation, properties and interaction of curcumin loaded zein/HP-β-CD nanoparticles based on electrostatic interactions by antisolvent co-precipitation

•Zein/HP-β-CD nanoparticles enable encapsulate, protect and deliver curcumin.•Crystal curcumin was successfully entrapped into zein/HP-β-CD.•Curcumin-zein/HP-β-CD displayed excellent stability and anti-oxidation efficacy.•A novel delivery system for low water-soluble bioactive substances was designed.