Laser-raman study of solute-solvent interactions in aqueous solutions of d-fructose, d-glucose,and sucrose |
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| Authors: | Mohamed Mathlouthi Claudine Luu Anne Marie Meffroy-Biget Dang Vinh Luu |
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| Affiliation: | Institut Universitaire de Technologie Département “Biologie Appliquée”, Université de Dijon, B.P. 510, 21014 Dijon Cédex France;Faculté de Pharmacie, 34000 Montpellier France;C.N.R.S., Faculté des Sciences, 76130 Mont Saint Aignan France;Laboratoire de Spectroscopie Raman, Université des Sciences et Techniques du Languedoc, 34060 Montpellier France |
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| Abstract: | The solute-solvent interactions of d-fructose, d-glucose, and sucrose in aqueous solution were studied by comparison of characteristic, Raman of the water and the sugar components. Shifts in frequency and intensity were observed in both the bending and the stretching regions of CH2 and H2O. The ratios of integrated, Raman intensities I(CH2)/I(H2O) of the CH2 peak and the H2O bending band, and I(CH)/I(OH) of the C-H stretching line to O-H stretching band were determined. Their evolutions in terms of mass-concentration display discontinuities at specific concentrations for each of the three sugars. These breaks were interpreted as changes in the hydrogen bonding of the various species. |
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