Biophenol-Protein Supramolecular Models by Fast Atom Bombardment-Mass Spectrometric Experiments

Vékey, Károly and Malorni, A. and Pócsfalvi, G. and Piperno, A. and Romeo, A. (1997) Biophenol-Protein Supramolecular Models by Fast Atom Bombardment-Mass Spectrometric Experiments. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 45 (7). pp. 2447-2451. ISSN 0021-8561

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Abstract

Biomimetic supramolecular formation between hydroxytyrosol, a biophenol found in olives and virgin olive oil, and caffeine or Asp-Phe, as proteic models, has been achieved by FAB-mass spectrometric experiments. The protonated supermolecules show a consistently higher difference in stability constants, thus indicating a preferential molecular recognition site provided by caffeine, the biomimetic model of proline-rich mucoproteins. The spontaneous aggregation of the complementary supramolecular components suggests correlations with the sensorial response and the bioavailability of food biophenols.

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