VOLUMETRIC STUDY OF SACCHARIDE INTERACTIONS (D-ARABINOSE, D-XYLOSE, AND D-GALACTOSE) IN SODIUM SACCHARIN AT 298.15 K

Abstract

Volumetric investigations are effective for attributing the interactions between saccharides and sodium saccharin in aqueous medium. The densities with the help of bicapillary pycnometer were measured for monosaccharide (D(-)- arabinose, D(+)galactose and D(+)-Xylose) (0.04 to 0.20) m (mol.kg-1) in water and aqueous sodium saccharin solution with molality, m = (0.05, 0.15 and 0.3) at 298.15 K. Experimental data were used to calculate the partial molar volume and apparent molar volume . The corresponding transfer volumes were calculated and showed a positive and increasing trend with concentration for saccharides from water to aqueous medium of sodium saccharin. With the help of McMillan-Mayer theory, the interaction coefficients ( ) and ( ) were calculated. In the presence of sodium saccharin, significant interactions between a hydrophilic group of saccharides and the sodium ion have been reported. Using apparent specific volume values, a sweet taste range was identified for saccharides in the presence of sodium saccharin.