title: Production of microparticles with gelatin and chitosan.
abstract: In the past few decades, the textile industry has significantly increased investment in research to develop functional fabrics, with a special focus on those aggregating values. Such fabrics can exploit microparticles inferior to 100 μm, such as those made by complex coacervation in their creation. The antimicrobial properties of chitosan can be attributed to these microparticles. Developing particles with uniform structure and properties would facilitate the control for the eventual release of the core material. Thus, a complex coacervation between gelatin and chitosan was studied, and the optimal conditions were replicated in the encapsulation of limonene. Spherical particles formed had an average diameter (D3,2) of 30 μm and were prepared with 89.7% efficiency. Cross-linking of these microparticles using glutaraldehyde and tripolyphosphate was carried out before spray drying. After drying, microparticles cross-linked with glutaraldehyde were oxidized and clustered and those that were cross-linked with tripolyphosphate resisted drying and presented a high yield.
authors.affiliation: Department of Foods and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo 13083-862, Brazil; School of Applied Sciences, University of Campinas, Limeira, São Paulo 13484-350, Brazil. Electronic address: ana.prata@fca.unicamp.br.
authors.forename: A S
authors.initials: AS
authors.lastname: Prata
authors.affiliation: School of Applied Sciences, University of Campinas, Limeira, São Paulo 13484-350, Brazil. Electronic address: grosso@fea.unicamp.br.
authors.forename: C R F
authors.initials: CR
authors.lastname: Grosso
mesh_terms: D048271:Chitosan / Q000737:chemistry*; D003432:Cross-Linking Reagents / Q000737:chemistry*; D005780:Gelatin / Q000737:chemistry*; D005976:Glutaral / Q000737:chemistry*; D010316:Particle Size; D011122:Polyphosphates / Q000737:chemistry*
chemical_list: D003432:Cross-Linking Reagents; D011122:Polyphosphates; D005780:Gelatin; D048271:Chitosan; C005692:triphosphoric acid; D005976:Glutaral
keywords: Chitosan; Complex coacervation; Limonene; Spray drying; Tripolyphosphate