Conductometric Properties and UV–Vis Spectroscopic Study of L-Glutamic Acid in Aqueous Solutions of L-Arabinose and D-Xylose in the Temperature Range of 293.15–313.15 K at Atmospheric Pressure

Abstract

In this work, the electrical conductance approach is used to investigate the molecular interactions between nonessential amino acid (L-glutamic acid) and carbohydrates (L-arabinose/D-xylose) at various temperatures. Many characteristics, including limiting molar conductance (\({{\Lambda }}_{{\text{m}}}^{0}\)), Walden product (\({{\Lambda }}_{{\text{m}}}^{0}{{\eta }_{0}}\)), activation energy (\({{E}_{{\text{A}}}}\)), and thermodynamic parameters, were obtained for the binary and ternary solutions of L-glutamic acid (Glu) from the electrical conductance (\(\hat {k}\)) measurement. The acquired thermodynamic quantities were interpreted in terms of the systems’ physicochemical interactions. The behavior of small biomolecules (amino acid) and saccharides in solute-solvent interactions is shown by the influence of numerous parameters, including concentration, temperature, and the position of axial and equatorial –OH groups of the saccharides, on these quantities. Hydrophilic-hydrophilic or ion-hydrophilic interactions predominate in the systems that are being studied is supported by the UV–Vis spectroscopy investigations’ absorption values.