Optimisation of the microencapsulation of tuna oil in gelatin-sodium hexametaphosphate using complex coacervation
Journal article
Wang, Bo, Adhikari, Benu and Barrow, Colin J.. (2014). Optimisation of the microencapsulation of tuna oil in gelatin-sodium hexametaphosphate using complex coacervation. Food Chemistry. 158, pp. 358-365. https://doi.org/10.1016/j.foodchem.2014.02.135
Authors | Wang, Bo, Adhikari, Benu and Barrow, Colin J. |
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Abstract | The microencapsulation of tuna oil in gelatin–sodium hexametaphosphate (SHMP) using complex coacervation was optimised for the stabilisation of omega-3 oils, for use as a functional food ingredient. Firstly, oil stability was optimised by comparing the accelerated stability of tuna oil in the presence of various commercial antioxidants, using a Rancimat™. Then zeta-potential (mV), turbidity and coacervate yield (%) were measured and optimised for complex coacervation. The highest yield of complex coacervate was obtained at pH 4.7 and at a gelatin to SHMP ratio of 15:1. Multi-core microcapsules were formed when the mixed microencapsulation system was cooled to 5 °C at a rate of 12 °C/h. Crosslinking with transglutaminase followed by freeze drying resulted in a dried powder with an encapsulation efficiency of 99.82% and a payload of 52.56%. Some 98.56% of the oil was successfully microencapsulated and accelerated stability using a Rancimat™ showed stability more than double that of non-encapsulated oil. |
Keywords | tuna oil; microencapsulation; complex coacervation; oxidative stability; gelatin; sodium hexametaphosphate; transglutaminase |
Year | 2014 |
Journal | Food Chemistry |
Journal citation | 158, pp. 358-365 |
Publisher | Elsevier Ltd |
ISSN | 0308-8146 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.foodchem.2014.02.135 |
Scopus EID | 2-s2.0-84896959043 |
Research or scholarly | Research |
Page range | 358-365 |
Publisher's version | License All rights reserved File Access Level Controlled |
Output status | Published |
Publication dates | |
Online | 06 Mar 2014 |
Publication process dates | |
Accepted | 24 Feb 2014 |
Deposited | 11 Aug 2021 |
https://acuresearchbank.acu.edu.au/item/8w94v/optimisation-of-the-microencapsulation-of-tuna-oil-in-gelatin-sodium-hexametaphosphate-using-complex-coacervation
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