Abstract
ABSTRACTThe effects of CO2 and N2 atmospheres on the thermodynamic state of water influencing microbial response in collagen was studied by generating sorption isotherms by inverse gas chromatography and the static method and calculating thermodynamic parameters of sorption. CO2 atmosphere significantly increase; water sorption by collagen at 25°C, 30°C, and 35°C compared to N2 and He. The average binding energies of collagen were significantly increased by CO2 as shown by larger negative Gibb's free energy (δGs), isoteric enthalpy of sorption (δHs) and entropy of sorption (δSs) values. Water clustering in collagen appeared at a higher water activity (aw) in CO2 gas as compared to N2‐ and He‐treated atmospheres at 25°C, 30°C, and 35°C.
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