EFFECT OF CARRIER TYPE ON STABILITY OF Β-CAROTENE MICRO-ENCAPSULATED USING SPRAY-DRYING METHOD

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EFFECT OF CARRIER TYPE ON STABILITY OF Β-CAROTENE MICRO-ENCAPSULATED USING SPRAY-DRYING METHOD

Journal Title: Żywność. Nauka. Technologia. Jakość - Year 2011, Vol 18, Issue 1

Abstract

The objective of this study was to determine the effect of carrier type and amount on the stability of β-carotene micro-encapsulated using a spray-drying method. The walls of micro-capsules (carriers) were made of: an Arabic gum and a modified starch (E1450). The amounts of the carriers added ranged from 15 to 30 %, and the amount of the β-carotene emulsion was 5% of the emulsion weight. The emulsions of β-carotene and the carrier solutions were made using a high-pressure homogenizer in order to perform a two stage homogenization process. The following values were determined: distribution of the emulsion particle size, total content of β-carotene in micro-capsules and on their surfaces, the colour of beverages produced with the addition of micro-encapsulated β-carotene. The experiment was carried out during two months. It was found that both the Arabic gum and the modified starch (E 1450) were a good material to build the walls of micro-capsules containing β-carotene. The distribution analysis of the dispersed emulsion particle size showed that the emulsions with 25 % of Arabic gum added were better dispersed. The samples with the Arabic gum added were characterized by the better effectiveness of micro-encapsulation and the better retention of β-carotene during storage. As for the Arabic gum, the increase in the carrier concentration caused the colour retention to increase. A reverse dependence was found in the case of modified starch.

Authors and Affiliations

Elżbieta Dłużewska, Anna Florowska, Ewelina Jasiorska

Keywords

β-karoten mikrokapsułkowanie skrobia modyfikowana guma arbska

EP ID EP157994
DOI 10.15193/zntj/2011/74/140-151
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