4.3 Article

Formulation and Characterization of Taxifolin-Loaded Lipid Nanovesicles (Liposomes, Niosomes, and Transfersomes) for Beverage Fortification

Journal

Publisher

WILEY
DOI: 10.1002/ejlt.201900105

Keywords

apple juice; food fortification; nanovesicles; niosomes; taxifolin; transfersomes

Funding

  1. Isfahan University of Technology

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In this study, nanovesicles such as transfersomes, niosomes, and liposomes prepared by an ethanol injection method (EIM) (EIM) and formulated with soybean lecithin, Tween 80, Span 60, and cholesterol, are used to improve the bioavailability of taxifolin, a natural antioxidant with beneficial properties for health and food preservation. Morphology, stability, and the in-vitro release of the optimal formulations are fully examined. The obtained results indicate that taxifolin-loaded nanovesicles present sizes ranging between 98 and 215 nm along with a narrow size distribution (polydispersity index less than 0.250). The zeta potential of nanovesicles is negative and in the range of -20.40 to -32.20 mV. The optimal formulations with the maximum encapsulation efficiency (72-75%) are the transfersomes formulated with lecithin and Tween 80 in the presence and absence of cholesterol. Additionally, in vitro release behavior of nanovesicles shows low taxifolin released (3.68-10.13%) at intestinal conditions, whereas more than 90% of taxifolin is released in gastrointestinal conditions. The compatibility between taxifolin and nanovesicles components is confirmed by FTIR. Transmission electron microscopy demonstrates spherical shaped particles around 200 nm. Backscattering profiles variations show the potential application of taxifolin nanovesicles for producing fortified apple juice with excellent physical stability. Practical Applications: Taxifolin is a flavanonol, which fulfills a particular task in preserving stable functions of the circulatory system owing to its special antioxidant ability and biological activity. Nevertheless, its low bioavailability is a salient drawback for biomedical and food applications. Thus, the current study is conducted to encapsulate taxifolin in nanovesicles (such as liposome, niosome, transfersome) by EIM to improve its bioavailability. Nanocarriers with relatively decent physical stability and high encapsulation efficiency can be brought about through Tween 80, soybean lecithin, and in the presence and absence of cholesterol as stabilizer which ensures the successful delivery of taxifolin to food formats such as beverages.

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