Keratin-Chitosan Microcapsules via Membrane Emulsification and Interfacial Complexation.

ABSTRACT: The continuous fabrication via membrane emulsification of stable microcapsules using renewable, biodegradable biopolymer wall materials keratin and chitosan is reported here for the first time. Microcapsule formation was based on opposite charge interactions between keratin and chitosan, which formed polyelectrolyte complexes when solutions were mixed at pH 5.5. Interfacial complexation was induced by transfer of keratin-stabilized primary emulsion droplets to chitosan solution, where the deposition of chitosan around droplets formed a core-shell structure. Capsule formation was demonstrated both in batch and continuous systems, with the latter showing a productivity up to 4.5 million capsules per minute. Keratin-chitosan microcapsules (in the 30-120 μm range) released less encapsulated ni

SUBMITTER: Wilson A 

PROVIDER: S-EPMC8735752 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature