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Microencapsulation of chia seed oil using chia seed protein isolate-chia seed gum complex coacervates
journal contribution
posted on 2016-10-01, 00:00 authored by Yakindra Timilsena, R Adhikari, Colin BarrowColin Barrow, B AdhikariChia seed oil (CSO) microcapsules were produced by using chia seed protein isolate (CPI)-chia seed gum (CSG) complex coacervates aiming to enhance the oxidative stability of CSO. The effect of wall material composition, core-to-wall ratio and method of drying on the microencapsulation efficiency (MEE) and oxidative stability (OS) was studied The microcapsules produced using CPI-CSG complex coacervates as wall material had higher MEE at equivalent payload, lower surface oil and higher OS compared to the microcapsules produced by using CSG and CPI individually. CSO microcapsules produced by using CSG as wall material had lowest MEE (67.3%) and oxidative stability index (OSI=6.6h), whereas CPI-CSG complex coacervate microcapsules had the highest MEE (93.9%) and OSI (12.3h). The MEE and OSI of microcapsules produced by using CPI as wall materials were in between those produced by using CSG and CPI-CSG complex coacervates as wall materials. The CSO microcapsules produced by using CPI-CSG complex coacervate as shell matrix at core-to-wall ratio of 1:2 had 6 times longer storage life compared to that of unencapsulated CSO. The peroxide value of CSO microcapsule produced using CPI-CSG complex coacervate as wall material was <10meq O2/kg oil during 30 days of storage.
History
Journal
International journal of biological macromoleculesVolume
91Pagination
347 - 357Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0141-8130eISSN
1879-0003Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2016, ElsevierUsage metrics
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No categories selectedKeywords
Chia seed gumChia seed oilChia seed protein isolateComplex coacervationEncapsulation efficiencyOxidative stabilityScience & TechnologyLife Sciences & BiomedicinePhysical SciencesBiochemistry & Molecular BiologyChemistry, AppliedPolymer ScienceChemistryFATTY-ACIDSTUNA OILSPRAYENCAPSULATIONGELATINIMPACT
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