Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 241, Issue -, Pages 237-245Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molliq.2017.06.004
Keywords
Density; Speed of sound; Saccharides; Apparent molar volume; Hydration number; Taste behavior
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The volumetric and compressibility properties of L-serine and L-valine in the concentration range (0.0 to 0.2) mol kg(-1) in water and various saccharides (0.1 glucose, 0.1 sucrose and 0.1 lactose) mol dm(-3) have been studied over a temperature range of (293.15 to 313.15) K. The experimental data is used to obtain the apparent molar volume (V-phi), limiting apparent molar volume (V degrees(phi)), limiting apparent molar transfer volume (Delta V-tr degrees(phi)), as well as apparent molar compressibility (K-s,K-phi), limiting apparent molar compressibility (K degrees(s,phi)), limiting apparent molar transfer compressibility (Delta K-tr degrees(s,phi)), limiting partial molar expansibility (phi degrees(E)), coefficient of thermal expansion (alpha), hydration number (n(H)) and taste behavior of amino acids. The results have been interpreted in terms of solute-solute and solute-solvent interactions. As the taste behavior is divided into four basic taste qualities in different ranges, so an effort has also been made to compare the taste behavior of the two amino acids in water and in aqueous solution of saccharides. (C) 2017 Elsevier B.V. All rights reserved.
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