Heat capacity and physical transitions in collagen and solubility of water in it |
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| Authors: | V F Ur’yash V I Sevast’yanov N Yu Kokurina Yu V Porunova N V Perova L A Faminskaya |
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| Institution: | (1) Research Institute of Chemistry, Lobachevskii State University, pr. Gagarina 23/5, Nizhny Novgorod, 603950, Russia;(2) Research Institute of Transplantology and Artificial Organs, Ministry of Public Health of the Russian Federation, Moscow, Russia |
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| Abstract: | The heat capacities of cattle and poultry collagen samples were measured by adiabatic calorimetry in the range 80–330 K. The temperatures of physical transitions in these samples were determined. Endothermic relaxation transitions (γ1, γ2, and β) were observed in the heat capacity curves of the studied collagen samples. The solubility of water in collagen samples obtained from various sources was determined by calorimetry from the enthalpy of melting of the “free” water phase. |
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