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Nanotechnology
IOP Publishing Ltd
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Abstract: |
Borage seed oil(BSO), peppermint oil (PO)and lycopene(LC)have accomplished a lot of interest
due to their therapeutic benefits in the food and pharmaceutical sectors. However, their employment in
functional food products and dietary supplements is still precluded by their high susceptibility to
oxidation. Thus, the encapsulation can be applied as a promising strategy to overcome these limits. In
the present study, doubly layered water/oil/water(W/O/W)nanoemulsions were equipped using
purity gum ultra(PGU), soy protein isolate (SPI),pectin(PC), whey protein isolate (WPI)and WPIPC and SPI-PC complexes, and their physico-chemical properties were investigated. Our aim was to
investigate the influence of natural biopolymers as stabilizers on the physicochemical properties of
nanoemulsified BSO, PO and lycopene thru W/O/W emulsions. The droplet size of the fabricated
emulsions coated with PGU, WPI, SPI, PC, WPI-PC, and SPI-PC was 156.2, 265.9, 254.7, 168.5,
559.5 and 656.1 nm, correspondingly. The encapsulation efficiency of the entrapped bioactives for
powders embedded by PGU, WPI, SPI, PC, WPI-PC, and SPI-PC was 95.21%, 94.67%, 97.24%,
92.19%, 90.07% and 92.34%, respectively. In addition, peroxide and p-anisidine values were used to
measure the antioxidant potential of the entrapped bioactive compounds during storage, which was
compared to synthetic antioxidant and bare natural antioxidant. The collectedfindings revealed that
oxidation occurred in oils encompassing entrapped bioactive compounds, but at a lower extent than
for non-encapsulated bioactives. In summary, thefindings obtained from current research prove that
the nanoencapsulation of BSO surrounded by innermost aqueous stage of W/O/W improved its
stability as well as allowed a controlled release of the entrapped bioactives. Thus, the obtained BSOPO-based systems could be successfully used for further fortification of food-stuffs.
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