Freeze-drying microencapsulation of turmeric (Curcuma Longa L.) using an amorphous matrix of maltodextrin, modified cassava flour and skim milk

  • Harvey Febrianta Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarang, Central Java, Indonesia
  • Vitus Dwi Yunianto Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarang, Central Java, Indonesia
  • Nurwantoro Nurwantoro Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarang, Central Java, Indonesia
  • Valentinus Priyo Bintoro Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarang, Central Java, Indonesia
DOI: https://doi.org/10.35219/foodtechnology.2020.2.02
Keywords: turmeric, antioxidant, microencapsulation, freeze-drying, physicochemical, modified cassava flour, phytochemical, skim milk

Abstract

This study aimed to evaluate the effect of freeze-drying microencapsulation of turmeric (Curcuma longa L.) assessing the influence of wall materials on microstructure characteristics, physicochemical composition, phytochemical, antioxidant properties, and in vitro release studies of turmeric microcapsules. The following four different samples were created: turmeric control (T0), turmeric in an amorphous matrix of maltodextrin (T1), turmeric in an amorphous matrix of modified cassava flour (T2), and turmeric in an amorphous matrix of skim milk (T3). The optimal treatment process was freeze-drying microencapsulation of turmeric polyphenols in an amorphous matrix of maltodextrin (T1), since it enabled high bioactive compounds with low values of moisture, water activity (aw), and curcumin release. Maltodextrin as a coating material in turmeric affected the increased level of yield, encapsulation efficiency, and microcapsule solubility. For instance, it showed a positive effect on the value of the total phenolic content, total flavonoid content, total tannin content, ascorbic acid, and consequently led to higher antioxidant activity. Turmeric (Curcuma longa L.) with the addition of maltodextrin can be used as a natural antioxidant compound and natural colorant for food products.

Published
2020-11-18
How to Cite
Febrianta, Harvey, Vitus Dwi Yunianto, Nurwantoro Nurwantoro, and Valentinus Priyo Bintoro. 2020. “Freeze-Drying Microencapsulation of Turmeric (Curcuma Longa L.) Using an Amorphous Matrix of Maltodextrin, Modified Cassava Flour and Skim Milk”. The Annals of the University Dunarea De Jos of Galati. Fascicle VI - Food Technology 44 (2), 26-42. https://doi.org/https://doi.org/10.35219/foodtechnology.2020.2.02.
Issue
Vol 44 No 2 (2020)
Section
ORIGINAL ARTICLES

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