Analyzing of L-tryptophan thermodynamics and its solubility in aqueous acetonitrile blends at diverse temperatures

Avishek Saha, Sourav Ghosh, Sintu Ganai, Puspal Mukherjee, Kalachand Mahali, Bidyut Saha, A. M.A. Henaish, Partha Sarathi Guin, Perwez Alam, Sanjay Roy

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

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. The calculated thermodynamic energies are correlated with interaction parameters, including Gibbs free energies and entropies, pertaining to the transfer of L-tryptophanfrom water to binary solvent blends of acetonitrile and water. Mathematical expressions are utilized to determine the transfer Gibbs free energies for chemical interactions, and the consequent entropies are clarified within the framework of solvent-solvent interactions. To expound upon the stability of L-tryptophan within the water-acetonitrile mixed system, we investigate the energetic aspects related to the transfer of chemicals Gibbs free energies. Additionally, standard temperature (298.15 K) is employed to calculate various related physicochemical parameters of solute/solvent.

Original languageEnglish
Article number107195
JournalBiophysical Chemistry
Volume307
DOIs
StatePublished - Apr 2024
Externally publishedYes

Keywords

  • Aqueous acetonitrile
  • Chemical interactions
  • L-tryptophan
  • Solubility
  • Thermodynamical constraints

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