Physiochemical Interactions of Amino Acids and Peptides in Aqueous Media

The present work covers in detail the results of measurements of apparent molar volumes, viscosities and apparent molar adiabatic isothermal compressibility of various -amino acids and peptide in water and in aqueous sodium nitrate (NaNO3), potassium nitrate (KNO3) and magnesium nitrate hexahydrate [Mg(NO3)2.6H2O] solutions at different temperatures as follows. These data have been used to arrive at the various parameters like partial molar volumes, partial molar adiabatic compressibility capacities and viscosity B-coefficients and their corresponding transfer functions, side chain contributions, interaction coefficients, activation parameters and hydration numbers. These parameters have been used to rationalize the nature of interactions amongst various -amino acids/ diglycine (solutes) and water (solvent) in the presence of NaNO3, KNO3 and Mg(NO3)2.6H2O (cosolute).
This work will be of interest to researchers working with amino acids and peptides.