Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorBanjare, Ramesh Kumar-
dc.contributor.authorBanjare, Manoj Kumar-
dc.contributor.authorGhosh, Kallol K-
dc.contributor.authorMundeja, Prashant-
dc.contributor.authorPanda, Sandhyarani-
dc.identifier.issn0975-0975(Online); 0376-4710(Print)-
dc.description.abstractThis work deals with the interactions among cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS) with α-chymotrypsin (α-CT) and trypsin in aqueous medium on pH 7.75 by conductivity and surface tension measurements. The critical micelle concentrations (CMC), surface parameters i.e., the maximum surface excess concentration (Γmax), minimum area per surfactant molecule (Amin), 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. The CMC has increased and surface tension of CMC (γCMC) values have decreased (at maximum μL of α-CT and trypsin), significantly in the presence of different μL of the added α-CT and trypsin. In this study, ΔG0ads value is established to be greater than ΔG0m, showing that adsorption is more favored in aqueous surfactants systems. Thermodynamic parameters show 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. It is significant that increasing the μL of α-CT and trypsin results in an increase in the spontaneity CMC on surfactants, α-CT and trypsin have more affinity for SDS compared to CTAB.en_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJC-A Vol.59A(08) [August 2020]en_US
dc.subjectMicellization Behavioren_US
dc.subjectSurface tensionen_US
dc.titleInterfacial and thermodynamic approach of surfactants with α-chymotrypsin and trypsin: A comparative studyen_US
Appears in Collections:IJC-A Vol.59A(08) [August 2020]

Files in This Item:
File Description SizeFormat 
IJCA 59A(8) 1128-1135.pdf533.73 kBAdobe PDFView/Open

Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.