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

K Mahdavee Khazaei; S M Jafari; M Ghorbani; A Hemmati Kakhki

doi:10.1016/j.carbpol.2014.01.042

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

Carbohydr Polym. 2014 May 25:105:57-62. doi: 10.1016/j.carbpol.2014.01.042. Epub 2014 Jan 22.

Authors

K Mahdavee Khazaei¹, S M Jafari², M Ghorbani¹, A Hemmati Kakhki³

Affiliations

¹ Department of Food Materials and Process Design Engineering, University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
² Department of Food Materials and Process Design Engineering, University of Agricultural Sciences and Natural Resources, Gorgan, Iran. Electronic address: smjafari@gau.ac.ir.
³ Research Institute of Food Science and Technology, Mashhad, Iran.

PMID: 24708952
DOI: 10.1016/j.carbpol.2014.01.042

Abstract

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 (P<0.01) and no significant decrease in anthocyanin content of the powders was observed after storage. The efficiency order of wall materials considering total color differences (TCD) was AG>M20>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<0.05). To conclude, microencapsulation by freeze drying could be recommended as a suitable method for stabilizing anthocyanins of saffron petal's extract.

Keywords: Anthocyanins; Color stability; Encapsulation; Freeze drying; Saffron petal.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Anthocyanins / chemistry*
Anthocyanins / isolation & purification
Crocus*
Drug Compounding / methods
Drug Evaluation, Preclinical / methods
Drug Stability
Flowers / chemistry*
Gum Arabic / chemistry*
Pigments, Biological / chemistry*
Pigments, Biological / isolation & purification
Polysaccharides / chemistry*

Substances

Anthocyanins
Pigments, Biological
Polysaccharides
maltodextrin
Gum Arabic