Abstract
The objectives of the present study were to first synthesize chitosan–chlorogenic acid (CA) covalent complex and finally evaluate the ability of chitosan–CA covalent complex and physical complex in stabilizing a model β-carotene emulsion. Chitosan–CA covalent complex was synthesized according to carbodiimide-mediated coupling method. Data of proton nuclear magnetic resonance (1H NMR) indicated that chitosan formed covalent complex with CA successfully. Afterward, the research was focused on testing chitosan–CA complexes in stabilizing β-carotene emulsions. Mean droplet size of emulsion coated by chitosan–CA covalent complex was 364.3 ± 0.8 nm, which was the smallest among all investigated emulsions. In comparison with emulsions stabilized by control chitosan and chitosan–CA physical complex, the emulsion coated by chitosan–CA covalent complex had higher viscosity. Besides, interfacial concentration fraction of CA in the emulsion coated by chitosan–CA covalent complex and the emulsion stabilized by chitosan–CA physical complex was (73.7 ± 4.3)% and (44.9 ± 2.4)%, respectively. The physicochemical stabilities of the emulsion stabilized by chitosan–CA covalent complex were the best among all emulsions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
