The liquid fraction (LF), defined as the percentage of the liquid mass
of oil at selected temperatures, was calculated from the melting
thermogram. LF calculation is based on the assumption that at -80 °C
the lipid mass, after annealing, is totally crystallized (LF ) 0) and that
at 60 °C it is totally liquid (LF ) 100). This means that the total peak
enthalpy was assumed as the melting enthalpy of the total lipid mass.
By the partial integration of the curves at different temperatures we
obtain the enthalpy of the mass melted at the selected temperature and,
finally, by comparison with the total peak enthalpy, the liquid fraction.