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Microencapsulation of saffron petal anthocyanins with cress seed gum compared with Arabic gum through freeze drying

Jafari, S.-M. and Mahdavi-Khazaei, K. and Hemmati-Kakhki, A. (2016) Microencapsulation of saffron petal anthocyanins with cress seed gum compared with Arabic gum through freeze drying. Carbohydrate Polymers, 140. pp. 20-25.

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Abstract

In this research, encapsulation efficiency of cress seed gum (CSG) as a native hydrocolloid was compared with Arabic gum (AG) and maltodextrin (dextrose equivalent of 20 (M20), and 7 (M7)) for saffron (Crocus sativus) petal's extract by freeze drying method. Combinations of CSG-M20, AG-M20, and M7-M20 with ratios of 50:50 and M20 alone (100%) were used as wall materials. A mixture of 1:5 (based on dry matter) between core (concentrated anthocyanin extract of saffron petal) and wall materials were freeze dried and stability of encapsulated anthocyanins along with color parameters (a∗, b∗, L∗, C, H° and TCD) of final powders were measured during 10 weeks of storage (at 35 °C as an accelerated method). Total anthocyanins were determined through pH differential method every week. Four prepared formulations of encapsulated powders didn't show any significant differences (P > 0.01) in terms of total anthocyanin content measured immediately after production and after 10 weeks storage. AG-M20 mixture and M20 alone showed the highest and lowest TCD, respectively. The mixture of CSG-M20 in comparison with AG-M20 and M20 had the same protecting effect (P < 0.01) but showed a relatively high TCD (9.33). © 2015 Elsevier Ltd. All rights reserved.

Item Type: Article
Additional Information: cited By 2
Uncontrolled Keywords: Drying; Encapsulation; Extraction; Food additives; Low temperature drying; Mixtures; Powders, Arabic gums; Dextrose equivalents; Encapsulation efficiency; Freeze drying; Freeze drying method; Saffron petal; Seed gum; Total anthocyanin contents, Anthocyanins
Subjects: مقالات نمایه شده محققین دانشگاه در سایت ,Web of Science ,Scopus
Divisions: معاونت تحقیقات و فناوری
Depositing User: GOUMS
Date Deposited: 07 Sep 2016 10:13
Last Modified: 13 Sep 2016 08:28
URI: http://eprints.goums.ac.ir/id/eprint/4558

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