Curcumin Encapsulation in Submicrometer Spray-Dried Chitosan/Tween 20 Particles
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Abstract
Optimal curcumin delivery for medicinal applications requires a drug delivery system that both solubilizes curcumin and prevents degradation. To achieve this, curcumin has been encapsulated in submicrometer chitosan/Tween 20 particles via a benchtop spray-drying process. Spray-drying parameters have been optimized using a Taguchi statistical approach to minimize particle size and to favor spheroid particles with smooth surfaces, as evaluated with scanning electron microscopy (SEM) imaging. Nearly spherical particles with 285 ± 30 nm diameter and 1.21 axial ratio were achieved. Inclusion of curcumin in the spray-drying solution results in complete encapsulation of curcumin within the chitosan/Tween 20 particles. Release studies confirm that curcumin can be released completely from the particles over a 2 h period.
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