Biophenols of plant origin, found in traditional Mediterranean foods, show relevant physiological functions and influence the taste sensorial perception. The taste phenomenon involves the establishment of a multiple reversible equilibrium of supramolecular formation among molecular components. The complex taste process has been evaluated by NMR biomimetic experiments performed in abiotic conditions. 3,4-Dihydroxyphenylacetic acid, a model compound, was investigated by NMR titration with caffeine and â-cyclodextrin, respectively. The kinetics and energetics of the process show that the supramolecular interactions, controlled by weak forces occurring at short distance, increase according to the order â-cyclodextrin > caffeine, suggesting that polysaccharides could play a fundamental role in the mechanism that controls the taste perception.
Biomimetic Supramolecular Biophenol-Carbohydrate andBiophenol-Protein Models by NMR Experiments
ROMEO, Giovanni;
1997-01-01
Abstract
Biophenols of plant origin, found in traditional Mediterranean foods, show relevant physiological functions and influence the taste sensorial perception. The taste phenomenon involves the establishment of a multiple reversible equilibrium of supramolecular formation among molecular components. The complex taste process has been evaluated by NMR biomimetic experiments performed in abiotic conditions. 3,4-Dihydroxyphenylacetic acid, a model compound, was investigated by NMR titration with caffeine and â-cyclodextrin, respectively. The kinetics and energetics of the process show that the supramolecular interactions, controlled by weak forces occurring at short distance, increase according to the order â-cyclodextrin > caffeine, suggesting that polysaccharides could play a fundamental role in the mechanism that controls the taste perception.Pubblicazioni consigliate
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