Application of maltodextrin and gum Arabic in microencapsulation of saffron petal's anthocyanins and evaluating their storage stability and color

• Published in: Carbohydrate polymers 2014-05, Vol.105, p.57-62
• Main Authors: MAHDAVEE KHAZAEI, K, JAFARI, S. M, GHORBANI, M, HEMMATI KAKHKI, A
• Format: Article
• Language: English
• Subjects: Anthocyanins - chemistry; Anthocyanins - isolation & purification; Applied sciences; Biological and medical sciences; Crocus; Drug Compounding - methods; Drug Evaluation, Preclinical - methods; Drug Stability; Exact sciences and technology; Flowers - chemistry; Food additives; Food industries; Fundamental and applied biological sciences. Psychology; General aspects; Gum Arabic - chemistry; Natural polymers; Physicochemistry of polymers; Pigments, Biological - chemistry; Pigments, Biological - isolation & purification; Polysaccharides - chemistry; Starch and polysaccharides
• ISSN: 0144-8617; 1879-1344
• DOI: 10.1016/j.carbpol.2014.01.042

In this work, anthocyanin stability and color of encapsulated freeze-dried saffron petal's extract with various matrices consisting gum Arabic (AG) and maltodextrin (M7 and M20) were studied. Total anthocyanins of powders and color parameters (a*, b*, L*, C, H° and TCD) were measured immediately after production and during storage up to 10 weeks by pH differential method and computer vision, respectively. Different compounds of wall materials did not show any significant differences in terms of stabilizing anthocyanins (PM20>M7. By evaluating 3D surface and Cox trace plots it was revealed that wall formulas which had the lowest amount of AG and highest amounts of M20 and M7 showed the lowest total color differences after storage (P