Thermal and rheological properties and the effects of temperature on the viscosity and oxidation rate of unpurified salmon oil
J. Huang and S. Sathivel
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Description
The effects of temperature on the magnitude of viscosity and rates of lipid oxidation of unpurified salmon oil were measured and modeled using the Arrhenius equation. The melting point of salmon oil ranged from –61.3 to 31.2 degrees C. The flow behavior index of the oil samples was less than one, which indicated that the salmon oil exhibited non-Newtonian fluid behavior. The viscosity at 5 degrees C was significantly higher than at 10, 15, 20, 25,30, and 35 degrees C. The average magnitude of activation energy for viscosity of the oil was 21.8 kJ per mol. The viscosity estimated with the Arrhenius equation agreed with the experimental viscosity. The rate of lipid oxidation for unpurified salmon oil was temperature dependent. The activation energy for lipid oxidation of the oil was 51.3kj per mol.
Item details
- Item number: RP-08-03
- Year: 2008
- Pages: 7
