Non-covalent associations of cyclomaltooligosaccharides (cyclodextrins) with trans-β-carotene in water: evidence for the formation of large aggregates by light scattering and NMR spectroscopy

Abstract Light scattering and NMR experiments provide evidence for the formation of large aggregates, like micelles, from β -carotene complexes with β - and γ -cyclodextrin in water. High-resolution NMR spectra of the system γ -cyclodextrin/ β -carotene in D 2 O point out guest-induced chemical shift variation of the sugar protons, thus suggesting host–guest interaction in solution.