Campus Units
Mechanical Engineering
Document Type
Article
Publication Version
Accepted Manuscript
Publication Date
10-15-2019
Journal or Book Title
Food Chemistry
Volume
295
First Page
671
Last Page
679
DOI
10.1016/j.foodchem.2019.05.165
Abstract
The aim of this work was to develop and optimize a pH-responsive nanoparticle based on poly(D,L-lactide-co-glycolide) (PLGA) and chitosan (CHIT) for delivery of natural antimicrobial using trans-cinnamaldehyde (TCIN) as a model compound. The optimization was performed using a central composite design and the desirability function approach. The optimized levels of variables considering all significant responses were 4% (w/w) of TCIN and 6.75% (w/w) of CHIT. After, optimized nanoparticles were produced and characterized according to their physicochemical properties and their antimicrobial activity against SalmonellaTyphimurium and Staphylococcus aureus. Optimized nanoparticles characterization indicated a satisfactory TCIN encapsulation (33.20 ± 0.85%), spherical shape, pH-responsive controlled release, with faster release in the presence of CHIT at low pH, and enhanced antimicrobial activity against both pathogens. TCIN encapsulation using PLGA coated with CHIT enhanced its antimicrobial activity and generated a delivery system with pH-sensitivity for controlled release with promising properties for food safety applications.
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Copyright Owner
Elsevier Ltd.
Copyright Date
2019
Language
en
File Format
application/pdf
Recommended Citation
Pola, Cicero C.; Moraes, Allan R.F.; Medeiros, Eber A.A.; Teófilo, Reinaldo F.; Soares, Nilda F.F.; and Gomes, Carmen L., "Development and optimization of pH-responsive PLGA-chitosan nanoparticles for triggered release of antimicrobials" (2019). Mechanical Engineering Publications. 357.
https://lib.dr.iastate.edu/me_pubs/357
Included in
Biomechanical Engineering Commons, Food Biotechnology Commons, Food Processing Commons, Nanoscience and Nanotechnology Commons
Comments
This is a manuscript of an article published as Pola, Cícero C., Allan RF Moraes, Eber AA Medeiros, Reinaldo F. Teófilo, Nilda FF Soares, and Carmen L. Gomes. "Development and optimization of pH-responsive PLGA-chitosan nanoparticles for triggered release of antimicrobials." Food Chemistry 295 (2019): 671-679. DOI: 10.1016/j.foodchem.2019.05.165. Posted with permission.