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Revista de Chimie (Rev. Chim.), Year 2010, Volume 61, Issue 7,





Daniel I. Hadaruga, Nicoleta G. Hadaruga, Geza N. Bandur, Adrian Rivis, Corina Costescu, Valentin L. Ordodi, Aurel Ardelean
Berberis Vulgaris Extract/b Cyclodextrin Nanoparticles
Synthesis and Characterization

Abstract:

This paper presents a study regarding the evaluation of the main alkaloid (berberine) from different parts of Berberis vulgaris L. from the West side of Romania (Arad), the antioxidant activity of extracts, and the obtaining and characterization of B. vulgaris extract/b cyclodextrin complexes. The maximum concentration of berberine was found in bark (~6%), followed by root (3.8%), and the least was found in leaves and fruits (by using the high performance liquid chromatography analysis). Leaves and fruits have the best antioxidant activity (revealed by DPPH free radical scavenging assay). B. vulgaris extract/b cyclodextrin complexes were obtained with good yields (]69%) by using the ethanol-water solution method, the particles obtained having dimensions between hundreds of nanometers to micrometers (by SEM analysis), and the complex formation was confirmed by thermogravimetry (~2% mass loss in the 100-275oC temperature interval) and differential scanning calorimetry (endothermal peak with an energy consumption of ~116 J/g, corresponding to the dissociation of the biocompounds/cyclodextrin complex). Keywords: cyclodextrins, Berberis vulgaris, berberine, nanoparticles, high performance liquid chromatography, scanning electron microscopy, thermogravimetry, differential scanning calorimetry


Issue: 2010, Volume 61, Issue 7
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