the rise in temperature increases the diffusion of the oil while
decreasing the viscosity (Eikani et al., 2012; Meziane and Kadi,
2008). The mass transfer coefficient of the extraction process also
increases with temperature thus effecting the diffusion. Sayyar
et al., 2009 reported that using hexane as the solvent, the amount
of oil extracted increased around 1.5% by increasing the extraction
temperature from room temperature to 45 and 45–60 C (Sayyar
et al., 2009).
The oil yield was slightly higher, 1.7% in the soxhlet extractor if
compared to the batch reactor. This is because soxhlet extractor
introduces continuous extraction whilst batch extractor needs
additional step, washing of the meals after extraction process to increase
the oil yield