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Nutraceutical delivery systems: resveratrol encapsulation in grape seed oil nanoemulsions formed by spontaneous emulsification

Affiliations

  • 1 Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA. Electronic address: [email protected]
  • 2 Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA; Department of Biochemistry, Faculty of Science, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, Saudi Arabia.
  • PMID: 25148980
  • DOI: 10.1016/j.foodchem.2014.06.082

Nutraceutical delivery systems: resveratrol encapsulation in grape seed oil nanoemulsions formed by spontaneous emulsification

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Authors

Affiliations

  • 1 Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA. Electronic address: [email protected]
  • 2 Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA; Department of Biochemistry, Faculty of Science, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, Saudi Arabia.
  • PMID: 25148980
  • DOI: 10.1016/j.foodchem.2014.06.082

Abstract

The aim of this work was to fabricate nanoemulsions-based delivery systems to encapsulate resveratrol. Nanoemulsions were formed using spontaneous emulsification method: 10% oil phase (grape seed oil plus orange oil) and 10% surfactant (Tween 80) were titrated into 80% aqueous phase. An optimum orange oil-to-grape seed oil ratio of 1:1(w/w) formed small droplets (d ≈ 100 nm) with good stability to droplet growth. The maximum amount of resveratrol that could be dissolved in the oil phase was 120 ± 10 μg/ml. The effect of droplet size on the chemical stability of encapsulated resveratrol was examined by preparing systems with different mean droplet diameters of 220 ± 2; 99 ± 3; and 45 ± 0.4 nm. Encapsulation of resveratrol improved its chemical stability after exposure to UV-light: 88% retention in nanoemulsions compared to 50% in dimethylsulphoxide (DMSO). This study showed that resveratrol could be encapsulated within low-energy nanoemulsion-based delivery systems and protected against degradation.

Keywords: Delivery systems; Grape seed oil; Grape skin extract; Low-energy methods; Nanoemulsions; Resveratrol; Spontaneous emulsification.

Copyright © 2014 Elsevier Ltd. All rights reserved.

The aim of this work was to fabricate nanoemulsions-based delivery systems to encapsulate resveratrol. Nanoemulsions were formed using spontaneous emulsification method: 10% oil phase (grape seed oil plus orange oil) and 10% surfactant (Tween 80) were titrated into 80% aqueous phase. An optimum oran …