Multilayer microencapsulation of chia seed oil by spray-drying using electrostatic deposition technology
- Copado, Claudia Noelia
- Julio, Luciana Magdalena
- Diehl, Bernd W. K.
- Ixtaina, Vanesa Yanet
- Tomás, Mabel Cristina
DOIAbstract
A multilayer microencapsulation process was carried out to protect and deliver chia oil, which presents high nutritional value but also a high susceptibility to lipid oxidation. A high-pressure homogenization was performed with deoiled or hydrolyzed sunflower lecithins (pH 5) to obtain the primary emulsion. The secondary and tertiary layers were deposited, applying the layer-by-layer technique with the addition of chitosan and chia mucilage, respectively. After spray-drying these emulsions, the corresponding microcapsules were obtained and the influence of the types of lecithin (deoiled or hydrolyzed) and microcapsule (mono or multilayered) were studied. The ζ-potential evidenced the electrostatic deposition of the layers through the invers...
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