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The conformational transition of κ‐carrageenan using microcalorimetry
Author(s) -
Rochas Cyrille,
Mazet Jean
Publication year - 1984
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.360231209
Subject(s) - isothermal microcalorimetry , chemistry , enthalpy , dimer , aqueous solution , carrageenan , dilution , salt (chemistry) , chloride , inorganic chemistry , thermodynamics , organic chemistry , biochemistry , physics
The interactions between inorganic cations and κ‐carrageenan in aqueous solutions have been studied using microcalorimetry. The enthalpy of dilution and the enthalpy of mixing of κ‐carrageenan in the coil conformation with an alkaline metal chloride have been investigated and are in agreement with theoretical predictions. The formation of helical dimer in a K + salt form in the absence of a gel formation is confirmed.