Anthocyanins are water-soluble vacuolar pigments that provide wide range of colors depending upon the existing pH. Generally known for their free radical scavenging activity and numerous health-promoting benefits, these natural pigments appeared promising making them suitable to replace existing harmful synthetic ones. However, prolonged exposure to certain environmental conditions makes them susceptible to degradation. The purpose of this study is to microencapsulate anthocyanin pigments extracted from Clitoria ternatea L. at pH 5 and 7 through spray-drying technique by using 5% Maltodextrin DE 11.8 as the carrier agent. The resulting physicochemical properties, particle size distribution and surface morphology are intended for its future functional applications. Stability studies in relation to color characteristics, moisture and total monomeric anthocyanin content were also evaluated to monitor its quality throughout storage. No signs of inter-particle liquid bridges among powders and a minimal noticeable color difference (ΔE < 4) were detected for each colorant after 12 weeks.
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2022: 6.012
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