Production of microparticles with gelatin and chitosan

Author(s)

Prata, A. S. ^{[1, 2]} ; Grosso, C. R. F. ^[1]

Affiliation

^[1] Univ Estadual Campinas, Sch Appl Sci, BR-13484350 Sao Paulo - Brazil

^[2] Univ Estadual Campinas, Fac Food Engn, Dept Food & Nutr, BR-13484350 Sao Paulo - Brazil

• Document type: Journal article
• Source: Carbohydrate Polymers; v. 116, p. 292-299, FEB 13 2015.
• Web of Science Citations: 27

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 mu m, 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 (D-3,D-2) of 30 mu m 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. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 11/04230-5 - Design of particles for functional finishing of textiles: investigation of microencapsulation techniques
• Grantee: Ana Silvia Prata
• Support Opportunities: Research Grants - Young Investigators Grants