International Journal of Chemical Science

International Journal of Chemical Science


International Journal of Chemical Science
International Journal of Chemical Science
Vol. 4, Issue 1 (2020)

Interfacial and thermodynamic approach of surfactants with α-chymotrypsin and trypsin: A comparative study


Ramesh Kumar Banjare, Manoj Kumar Banjare, Prashant Mundeja, Kallol K Ghosh

The conductivity as well as surface tension measurements have carried out to study the interactions among cetyltrimethyl ammonium bromide (CTAB), sodium dodecyl sulpahe (SDS) with α-chymotrypsin (α-CT) and trypsin in aqueous medium on pH 7.75. The surface parameter i.e., critical micelle concentrations (CMC), the maximum surface excess concentration (Γmax), minimum area per surfactant molecule (Amin) and the surface pressure at CMC (πcmc), and thermodynamic parameters i.e., degree of ionization (α), Gibbs free energy of micellization (ΔG°m), the standard Gibbs energy of adsorption (ΔG°ads), the free energy at air-water interface (ΔGsmim) have been evaluated using surface tension and conductivity measurement. Thermodynamic parameters indicate that enzyme-CTAB/SDS monomeric aggregation started to form micelles at a higher concentration of surfactant to compare with the CMC of pure CTAB/SDS micelles.
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How to cite this article:
Ramesh Kumar Banjare, Manoj Kumar Banjare, Prashant Mundeja, Kallol K Ghosh. Interfacial and thermodynamic approach of surfactants with α-chymotrypsin and trypsin: A comparative study. International Journal of Chemical Science, Volume 4, Issue 1, 2020, Pages 32-35
International Journal of Chemical Science