Abstract
An efficient method based on encapsulation efficiency of Syzygium cumini anthocyanin extract (ANC.E) was established by using a stable concentration from (ANC.E) and sodium alginate (SA) as a first step to interact with different concentrations from maltodextrin (MD), gum Arabic (GA) and chitosan (CH) as second carriers for the second step. Freeze-drying was used to fabricate particles from different gelling optimized blends. The encapsulation efficiency, Fourier transform-infrared spectroscopy (FT-IR), thermal behavior, morphological structure, physical properties, ANC.E degradation and color properties during storage days greatly influenced. The optimum encapsulation efficiency 92.4% was achieved by SA (1.5% w/v) and CH (0.8% w/v) in ANC.E (278.21 mg/100 mL) solution named SA.CH particles. The SA.CH particles surface were like-sheet particles and were unique in FT-IR analysis that showed new peaks and shifting in wave numbers. Additionally, the SA (1.5% w/v) and GA (0.8% w/v) in ANC.E (278.21 mg/100 mL) solution named SA.GA particles besides the SA.CH particles decreased the ANC.E degradation rate to 3.57 and 3.96%, respectively, compared with other tested particles. Moreover, they showed non-significant differences in color properties during the storage days. Therefore, the obtained results provided a potential approach to utilize ANC.E as colorants or healthy ingredients in functional food.
Published Version
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