Complex coacervation with whey protein isolate and gum arabic for the microencapsulation of omega-3 rich tuna oil

Journal article


Eratte, Divya, Wang, Bo, Dowling, Kim, Barrow, Colin J. and Adhikari, Benu P.. (2014). Complex coacervation with whey protein isolate and gum arabic for the microencapsulation of omega-3 rich tuna oil. Food and Function. 5(11), pp. 2743-2750. https://doi.org/10.1039/c4fo00296b
AuthorsEratte, Divya, Wang, Bo, Dowling, Kim, Barrow, Colin J. and Adhikari, Benu P.
Abstract

Tuna oil rich in omega-3 fatty acids was microencapsulated in whey protein isolate (WPI)–gum arabic (GA) complex coacervates, and subsequently dried using spray and freeze drying to produce solid microcapsules. The oxidative stability, oil microencapsulation efficiency, surface oil and morphology of these solid microcapsules were determined. The complex coacervation process between WPI and GA was optimised in terms of pH, and WPI-to-GA ratio, using zeta potential, turbidity, and morphology of the microcapsules. The optimum pH and WPI-to-GA ratio for complex coacervation was found to be 3.75 and 3 : 1, respectively. The spray dried solid microcapsules had better stability against oxidation, higher oil microencapsulation efficiency and lower surface oil content compared to the freeze dried microcapsules. The surface of the spray dried microcapsules did not show microscopic pores while the surface of the freeze dried microcapsules was more porous. This study suggests that solid microcapsules of omega-3 rich oils can be produced using WPI–GA complex coacervates followed by spray drying and these microcapsules can be quite stable against oxidation. These microcapsules can have many potential applications in the functional food and nutraceuticals industry.

Year2014
JournalFood and Function
Journal citation5 (11), pp. 2743-2750
PublisherRoyal Society of Chemistry
ISSN2042-6496
Digital Object Identifier (DOI)https://doi.org/10.1039/c4fo00296b
Scopus EID2-s2.0-84908131340
Open accessPublished as green open access
Research or scholarlyResearch
Page range2743-2750
Author's accepted manuscript
License
All rights reserved
File Access Level
Open
Publisher's version
License
All rights reserved
File Access Level
Controlled
Output statusPublished
Publication dates
Online30 Jun 2014
Publication process dates
Accepted29 Jun 2014
Deposited29 Jul 2021
Permalink -

https://acuresearchbank.acu.edu.au/item/8w6y7/complex-coacervation-with-whey-protein-isolate-and-gum-arabic-for-the-microencapsulation-of-omega-3-rich-tuna-oil

Download files


Author's accepted manuscript
AM_Eratte_2014_Complex_coacervation_with_whey_protein_isolate.pdf
License: All rights reserved
File access level: Open

Restricted files

Publisher's version

  • 19
    total views
  • 11
    total downloads
  • 0
    views this month
  • 0
    downloads this month
These values are for the period from 19th October 2020, when this repository was created.

Export as