کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1191822 | 963585 | 2007 | 6 صفحه PDF | دانلود رایگان |

The aim of the present research was to model the temperature dependence of lipid oxidation rate in water-in-oil emulsions stored at sub-zero temperatures. In fact, the application of the well-known Arrhenius equation resulted precluded in such conditions. To this purpose, the physical state and the oxidation rate of sunflower oil–water emulsions were evaluated from −30 to 60 °C. Results indicate that the rate of oxidation could be considered as a resultant of a complex interplay between the physicochemical changes occurring in the hydrophilic and hydrophobic phases as a consequence of phase transitions. By taking into account the changes in oil viscosity and in the reactant concentration in both lipid and water phase it was possible to set up a mathematical model able to describe the temperature dependence of oxidation rate in multiphase systems in the entire range of temperatures considered.
Journal: Food Chemistry - Volume 101, Issue 3, 2007, Pages 1019–1024