Journal
MOLECULES
Volume 23, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/molecules23020495
Keywords
beta-carotene; bilayer emulsion; bovine serum albumin (BSA); Arabic gum (GA); physicochemical property; chemical stability
Funding
- National Key R & D Program of China [2016YFD0400203]
- National Natural Science Foundation of China [31671961]
- Natural Science Foundation of Guangdong Province [2017A030311021]
- YangFan Innovative and Enterpreneurial Research Team Project [2014YT02S029]
Ask authors/readers for more resources
beta-carotene is a lipophilic micronutrient that is considered beneficial to human health. However, there are some limitations in utilizing beta-carotene in functional foods or dietary supplements currently because of its poor water dispersibility and chemical stability. A new type of beta-carotene bilayer emulsion delivery system was prepared by a layer-by-layer electrostatic deposition technique, for which were chosen bovine serum albumin (BSA) as the inner emulsifier and Arabic gum (GA) as the outer emulsifier. The physicochemical properties of bilayer emulsions were mainly characterized by droplet size distribution, zeta potential, rheological behavior, Creaming Index (CI), and encapsulation ratio of beta-carotene. Besides this, the effects of processing conditions (pH, thermal treatment, UV radiation, strong oxidant) and storage time on the chemical stability of bilayer emulsions were also evaluated. The bilayer emulsion had a small droplet size (221.27 +/- 5.17 nm) and distribution (PDI = 0.23 +/- 0.02), strong zeta potential (30.37 +/- 0.71 mV), good rheological behavior (with the highest viscosity that could reduce the possibility of flocculation) and physical stability (CI = 0), high fi-carotene encapsulation ratio (94.35 +/- 0.71%), and low interfacial tension (40.81 +/- 0.86 mN/m). It also obtained better chemical stability under different environmental stresses when compared with monolayer emulsions studied, because it had a dense and thick bilayer structure.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available