The aim of this work was to determine the freezing point (Tf) of tilapia (Oreochromis niloticus) fish burger using the cooling curve and differential scanning calorimetry (DSC) method. Cooling curves were obtained for two household refrigerators, a freezer with no quick freeze function and another...
The number 1 represents the heating/cooling system and the number 2 exemplifies the thermocouples (Lobo and Bonilla, 2003). The user-defined thermal program is applied to the sample and reference in the same conditions, especially the same heating and/or cooling rate, and the temperature of ...
DSC studies were carried out in heating and cooling mode. Results demonstrated a modification of calorimetric curves and this effect is strictly related to the molar fraction and physicochemical features of chemotherapeutics. Furthermore, the interaction between chemotherapeutics and biological membranes ...
The characterisation of hydrocarbon and natural waxes by differential scanning calorimetry is described. It is shown that the determination of the melting, cooling and remelting curves of a wax, and comparison with the corresponding curves of authenticated waxes, affords a rapid and valuable method for...
The transitions that occur between 114 and 124 °C are very weak and are displayed in the zoomed region of the cooling curve. Since liquid-crystal transitions often produce only very small thermal effects, the DSC used to measure such transitions must have high resolution and low noise. 11 ...
In such a case, the onset of crystallization is shifted to between − 25 and − 17 °C, depending on the cooling rate26. A similar crystallization temperature, (− 20.6 ± 0.9) °C, was found for the myoglobin solution, a protein that does not show any ice ...
The shapes of the cooling thermograms were most complicated, and dependent on the influence of the spontaneous crystallization, which followed supercooling when cooling rates of 8 C per min or more were imposed. Triglyceride composition had a less significant influence on the shapes of the curves,...
Using a physically based model of nucleation, growth and dissolution, the respective contributions of these terms are compared for the case of S phase precipitation in AA2024 (Al–4% Cu–2% Mg). Good overall agreement is obtained for the experimental and simulated DSC curves if the interfacial...
If a transition actually proceeds in a two-state manner, ∆H° values determined from optical melting curves and calorimetry will agree. If intermediate states are significantly populated, a transition will be broadened and this will make the apparent ΔHvH∘smaller than the true ∆H° as ...
(endothermal) entropy contribution were determined as material constants of the rubbers. Non-idealities were revealed by the large difference between the work done on the rubber for the extension and the heat that evolved in the process. It decreased to a considerable extent when the heat was ...