Journal
INTERNATIONAL JOURNAL OF FOOD ENGINEERING
Volume 16, Issue 1-2, Pages -Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/ijfe-2018-0310
Keywords
beta-carotene; microencapsulation; agglomeration
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Effects of agglomeration of beta-carotene microencapsulated by spray drying on its stability were analysed. Mixtures of Arabic gum (GA), maltodextrin (MD), modified starch (OSA), and whey protein (WP) were used as carriers. GA + MD and OSA + MD microcapsules were subjected to agglomeration. All the samples were stored for 60 days with access to daylight. Stability of the emulsions had a significant effect on efficiency of microencapsulation but had no effect on beta-carotene retention during sample storage. Among the tested samples, the highest retention of colorant characterized the samples containing GA + MD. The agglomeration process reduced the content of beta-carotene in the microcapsules almost by half. However, retention of the colorant during storage of the microcapsules was increased most of all and half-life of beta-carotene was significantly prolonged. Changes in L* and a* colour parameters during storage were more limited in the case of agglomerated samples.
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