Abstract
Electrospray technique was used to prepare alginate beads with controllable size from about 200 μm to 1.3 mm by adjusting the working voltage. The encapsulation ability of alginate beads for gallic acid, a model hydrophilic phenolic compound, was investigated. Loading amount of gallic acid varied from 7 g/100 g-12 g/100 g among alginate beads samples. Fourier-transform infrared and differential scanning calorimetry result confirmed the inclusion of gallic acid. Moreover, no autoxidation of gallic acid was observed in the formulated alginate beads. Release profile result indicated that in simulated intestinal fluid the release was faster than that in gastric fluid. The release pattern was influenced by both loading amount of gallic acid and size of alginate beads. Our results suggest that alginate beads fabricated by electrospray method is a promising delivery system for water soluble phenolic compound like gallic acid.
Original language | English |
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Pages (from-to) | 667-673 |
Number of pages | 7 |
Journal | LWT - Food Science and Technology |
Volume | 68 |
DOIs | |
Publication status | Published - 2016 May 1 |
Bibliographical note
Funding Information:This research was supported by Kyung-Nong Company, the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) of Korea (Grant No. 2012K1A3A1A20031356 ), a Korea University grant, Korea University.
Publisher Copyright:
© 2016 Elsevier Ltd.
Keywords
- Cross-linking
- Electrospray
- In vitro release
- Size
- Voltage
ASJC Scopus subject areas
- Food Science