Publications by authors named "Kalachand Mahali"

This study investigated the dissolution behavior of l-isoleucine and l-serine in an aqueous salt solution (ammonium chloride), examining how variations in temperature and electrolyte concentration affect their solubility. We conducted careful experiments and used mathematical calculations to explore interactions at a molecular level. We observed that the structure of these amino acids and salt concentration in the aqueous medium influence their interactions, which affects dissolution.

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  • A study was conducted on the solubility and molecular interactions of l-serine and L-cysteine in mixtures of water with different solvents: DMF, DMSO, and ACN, at temperatures from 288.15 K to 308.15 K.
  • *L-serine had the highest solubility in water, while L-cysteine was most soluble in the water-DMF mixture.
  • *Gibbs energy calculations showed that l-serine's solvation stability decreased in the order of water-ACN > water-DMSO > water-DMF, whereas for L-cysteine it was water-DMF > water-DMSO > water-ACN, also highlighting changes in solvent interactions and
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  • The study investigates how well L-isoleucine and L-tyrosine dissolve in various mixed solvents (DMF, DMSO, ACN), focusing on their behavior in different environments.
  • It emphasizes the importance of careful solvent purification and examines temperature effects and interactions that influence solubility in these systems.
  • The findings have broader implications for industries like cosmetics and pharmaceuticals, enhancing our understanding of amino acid interactions and leading to better use of these molecules in protein-based products and technologies.
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This paper delves into an investigation of the solubility characteristics of L-tryptophan within binary solvent systems containing aqueous acetonitrile. The primary emphasis of the study revolves around assessments based on mole fractions. The study utilizes these solubility values to assess thermodynamic constraints, including solution entropies and solution transfer free energetics.

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  • This research investigates how l-threonine, an amino acid, dissolves in various organic solvent systems, measuring its solubility and the thermodynamics of these solutions.
  • Using a gravimetric method, solubility was measured at five different temperatures (288.15 K to 308.15 K) to determine how l-threonine behaves in water and mixed solvents.
  • The findings show that the solubility of l-threonine varies significantly across different solvents, with water being the most effective solvent, while lower solubility was found in dimethylsulfoxide (DMSO) and acetonitrile (ACN).
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In this study we estimated the solubilities of glycine, D,L-alanine, D,L-nor-valine and D,L-serine in aqueous mixtures of potassium sulfate (KSO) at 298.15 K using analytical 'gravimetric method'. The experimental solubilities of homologous series of amino acids in aqueous KSO mixture were discussed in terms of relative solubility, salting-in and salting-out effect by evaluating the influential constants.

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