Effect of Carbon Dioxide on the Thermodynamic State of Water in Collagen
Thermodynamic activities of polar sites of collagen in the presence of CO2 were observed by inverse gas chromatographic techniques using water as a probe. The interactions between collagen and the water probe were evaluated by determining the specific retention volume (Vg°) and partition coefficient (Kp) at 25°C, 3°C, and 35°C. Thermodynamic parameters were determined from these data. CO2 exhibited a significant effect on the water binding of collagen as shown by increased Vg° and Kp values as compared to N2‐ and He‐treated collagen. The thermodynamic parameters of partial molar Gibb's free energy (ΔT°), partial molar enthalpy (ΔT°) and partial molar entropy (ΔT°) indicated CO2 significantly increased the average energy of water binding by collagen.
MSU Digital Commons Citation
Specchio, John; Karmas, E.; Daun, H.; Paik, S.; and Gilbert, S. G., "Effect of Carbon Dioxide on the Thermodynamic State of Water in Collagen" (1988). Department of Nutrition and Food Studies Scholarship and Creative Works. 42.