201. Microencapsulation of algae oil by complex coacervation of chitosan and modified starch: Characterization and oxidative stability.
- Author
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Mu H, Song Z, Wang X, Wang D, Zheng X, and Li X
- Subjects
- Chemical Phenomena, Drug Compounding, Hydrogen-Ion Concentration, Oxidation-Reduction, Spectroscopy, Fourier Transform Infrared, Thermodynamics, Chitosan chemistry, Oils chemistry, Starch chemistry
- Abstract
The formation of complex coacervation using chitosan and octenyl succinic anhydride modified starch (OSA starch) and microencapsulation of algae oil were investigated in this study. The zeta-potential, turbidity and coacervate yield were evaluated as a function of pH and the chitosan- OSA starch mass ratio. The highest coacervate yield was achieved at pH 6.0 with a chitosan to OSA starch ratio of 1:3 (w/w). Isothermal titration calorimetry (ITC) indicated favorable affinity (Ka = 1.51 × 10
5 M-1 ) between chitosan and OSA starch. The microcapsules yielded an encapsulation efficiency (EE) in the range of 42.8 ± 0.8%- 93.1 ± 1.2%, the loading capacity ranged between 30.4 ± 2.7% and 58.3 ± 1.3%. Fourier transform infrared spectroscopy (FT-IR) spectra and scanning electron microscopy (SEM) further confirmed the microencapsulation. In comparison with the bulk oil, the microencapsulated algae oil exhibited improved oxidative stability during storage., (Copyright © 2021 Elsevier B.V. All rights reserved.)- Published
- 2022
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