Journal
FOOD HYDROCOLLOIDS
Volume 112, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodhyd.2020.106274
Keywords
Tea polyphenols; Alginate; Binary mixtures; Hydrogel beads; Delivery; Release
Categories
Funding
- National Natural Science Foundation of China [:31801557]
- Doctoral start-up fund of Hubei University of Technology [BSQD2017025, GCRC2020014]
Ask authors/readers for more resources
The study showed that adding appropriate filler materials could increase the encapsulation efficiency of tea polyphenols. The porosity of alginate beads was not effective in retarding the diffusion of polyphenols, but alginate beads coated with chitosan exhibited the best performance in delaying the release of tea polyphenols.
In order to enhance the encapsulation efficiency of tea polyphenols (TP) and retard their diffusion from alginate hydrogel beads, we structured alginate network by coating or adding fillers. In the present study, alginate-based blends consisting of inulin, Arabic gum, or chitosan were prepared for assessment of the best formulation. Results indicated that encapsulation efficiencies of TP in plain alginate bead as well as beads reinforced with inulin, Arabic gum and chitosan were 38.51%, 36.48%, 48.56% and 57.76%, respectively, revealing that selected appropriate filler materials could indeed increase the encapsulation efficiency of TP. Additionally, the release profile of TP revealed that the porosity of alginate beads could not efficiently retard the diffusion of polyphenols from beads. However, alginate bead coated by chitosan gave the most retarded release of TP both in water and in the simulated gastrointestinal conditions. Moreover, TP encapsulated in the obtained beads could partly protect them from degradation during storage. Our results suggested that selected appropriate fillers or coating materials can indeed enhance the encapsulation efficiency of TP and retard their release, which could promote the application of TP as a functional ingredient in the food industry.
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