Nanoparticles of Waste Material of Propolis and Gelatin as a Novel System for Delivery of L-Ascorbic Acid.

Autor:	Belloto de Francisco LM; Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, Maringa, Parana. Brazil., Carrer Costa YT; Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, Maringa, Parana. Brazil., Outuki PM; Postgraduate Program in Pharmaceutical Sciences, Laboratory of Quality Control and Development of Phytotherapics, Department of Pharmacy, State University of Maringa, Maringa, Parana. Brazil., Souza RP; Laboratory of Clinical Cytology and STDs, Department Clinical Analysis and Biomedicine, State University of Maringa, Maringa, Parana. Brazil., de Souza Bonfim Mendonca P; Laboratory of Clinical Cytology and STDs, Department Clinical Analysis and Biomedicine, State University of Maringa, Maringa, Parana. Brazil., Novello CR; Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, Maringa, Parana. Brazil., Lopes Consolaro ME; Laboratory of Clinical Cytology and STDs, Department Clinical Analysis and Biomedicine, State University of Maringa, Maringa, Parana. Brazil., Bruschi ML; Department of Pharmacy, State University of Maringa, Colombo Avenue, n. 5790, K68, S05, CEP 87020-900, Maringa, Parana. Brazil.
Jazyk:	angličtina
Zdroj:	Current drug delivery [Curr Drug Deliv] 2017; Vol. 14 (7), pp. 1028-1039.
DOI:	10.2174/1570159X14666160322144315
Abstrakt:	Background: The waste material from the preparation of propolis extracts is a potential natural compound for application in pharmaceutical and medicine nanostructured products. Ascorbic acid is an excellent antioxidant and an important cofactor of several physiological and biochemical processes. Objective: The aim of this study was to develop and characterize nanoparticles containing L-ascorbic acid prepared with propolis byproduct. Method: Nanoparticle's physicochemical characteristics (surface morphology, particle size, zeta potential, and entrapment efficiency), antioxidant activity, in vitro release profile, and in vitro cytotoxicity were evaluated. Results: Nanoparticles showed to be spherical, with agglomeration, mean diameter between 110.93 and 480.59 nm, zeta potential near zero and good entrapment efficiency. Antioxidant activity of L-ascorbic acid increased when nanoencapsulated and the drug release was prolonged, controlled mainly by the phenomenon of relaxation of polymer chains and dependent of propolis residue concentration. The application of technology provided a reduction in the level of cytotoxicity of L-ascorbic acid, and the nanoparticles showed a protective effect on macrophages. (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.)
Databáze:	MEDLINE
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