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Title of Journal: J Solution Chem

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Abbravation: Journal of Solution Chemistry

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Springer US

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DOI

10.1016/1350-4789(95)90218-x

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ISSN

1572-8927

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Inclusion Complexes of Cyclodextrins with Galangin

Authors: Carolina Jullian Muriel Alfaro Gerald ZapataTorres Claudio OleaAzar
Publish Date: 2010/08/14
Volume: 39, Issue: 8, Pages: 1168-1177
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Abstract

The formation of the complexes of galangin GAL with native βcyclodextrin βCD and with its substituted counterparts such as dimethylβCD DMβCD and hydroxypropylβCD HPβCD was studied by fluorescence spectra in aqueous medium The binding association constants K a of the complexes were determined at different temperatures The formation constants obtained have the following trend upon complex formation at the three temperatures studied HPβCD DMβCD βCD The thermodynamic data for the inclusion of GAL in DMβCD and HPβCD indicated that is mainly enthalpy driven whereas for βCD it is an entropydriven processThe antioxidant ability studies of GAL and CD complexes showed practically no change in its activity when the βcyclodextrin complex is formed The decrease in the T eq observed for GALDMβCD and GALHPβCD in comparison with GALβCD could be due to effective protection of the phenol group in the cyclodextrin cavity which is in agreement with molecular modeling studies

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  2. Modified Screen-Printed Electrode for Potentiometric Determination of Copper(II) in Water Samples
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  4. NMR Study of the Exchange Kinetics of 30-Crown-10 Complexes with Sr 2+ and Ba 2+ Cations and Crystal Structure of the 30-Crown-10 Complex with Barium Perchlorate
  5. A Study of the Excess Properties of Aliphatic Chlorinated Compounds with Benzylalcohol at Various Temperatures
  6. Liquid–Liquid Equilibria of the Methanol + Toluene + Methylcyclohexane Ternary System at 278.15, 283.15, 288.15, 293.15, 298.15 and 303.15 K
  7. Complexation of Am(III) and Nd(III) by 1,10-Phenanthroline-2,9-Dicarboxylic Acid
  8. Diffusion Coefficients for the Ternary System Water + Chloroform + Acetic Acid at 25 °C
  9. Binding Mechanism of Bioactive Cetirizine Hydrochloride to Sudlow’s Site I of Serum Albumins
  10. Electroluminescent Properties of LECs Based on Ionic Transition Metal Complexes Using Tetrazole-Based Ancillary Ligand
  11. High-Pressure Densities and Derived Volumetric Properties (Excess, Apparent and Partial Molar Volumes) of Binary Mixtures of Methanol + [BMIM][PF 6 ]
  12. Solvent Effects on the Protonation Constants of Some α -Amino Acid Esters in 1,4-Dioxane–Water Mixtures
  13. Lanthanide Complexes with Allyl Acetoacetate in Mixed Water–Organic Media: Formation, Stability and Bonding
  14. A Study on Host–Guest Complexation of 5-Amino-2-Mercaptobenzimidazole with β -Cyclodextrin
  15. The Mixing Enthalpy Interaction Coefficients of N , N ′-Hexamethylenebisacetamide with l -Alanine and l -Serine in Aqueous Glucose Solutions at 298.15 K
  16. Effect of Temperature on Salt–Salt Aqueous Biphasic Systems: Manifestations of Upper Critical Solution Temperature
  17. Studies on Intermolecular Interactions in Liquid Mixtures of Alkoxyalkanols and Branched Alcohols by Volumetric and Acoustic Measurements at Different Temperatures
  18. Li + Transport Mechanism in Oligo(Ethylene Oxide)s Compared to Carbonates
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