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Nutrients 2016, 8(3), 131; doi:10.3390/nu8030131

Nanoscale Delivery of Resveratrol towards Enhancement of Supplements and Nutraceuticals

1
UCIBIO, REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
2
Laboratory for Pharmaceutical Technology/Research Centre in Pharmaceutical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
*
Author to whom correspondence should be addressed.
Received: 22 December 2015 / Revised: 11 February 2016 / Accepted: 18 February 2016 / Published: 2 March 2016
(This article belongs to the Special Issue Selected Papers from Resveratrol Regional Meeting 2015)
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Abstract

Resveratrol was investigated in terms of its stability, biocompatibility and intestinal permeability across Caco-2 cell monolayers in its free form or encapsulated in solid lipid nanoparticles (SLNs) and nanostructured lipid carriers (NLCs). SLNs and NLCs presented a mean diameter between 160 and 190 nm, high negative zeta potential of −30 mV and resveratrol entrapment efficiency of 80%, suggesting they are suitable for resveratrol oral delivery. Nanoencapsulation effectively protected resveratrol from photodegradation, and MTT assays demonstrated that neither resveratrol nor lipid nanoparticles adversely affected cell viability and integrity of Caco-2 cell monolayers. The in vitro intestinal permeability of resveratrol was significantly increased by NLCs, and SLNs did not impair the absorption of resveratrol. Resveratrol oral absorption can be enhanced during meals, since the intestinal permeability was increased in the presence of fed-state intestinal juices. SLNs and NLCs constitute carrier systems for resveratrol oral administration, for further use as supplements or nutraceuticals. View Full-Text
Keywords: resveratrol; biocompatibility; oral bioavailability; nanodelivery systems; lipid nanoparticles; intestinal permeability resveratrol; biocompatibility; oral bioavailability; nanodelivery systems; lipid nanoparticles; intestinal permeability
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Neves, A.R.; Martins, S.; Segundo, M.A.; Reis, S. Nanoscale Delivery of Resveratrol towards Enhancement of Supplements and Nutraceuticals. Nutrients 2016, 8, 131.

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