Bidimensional modeling applied to oil extraction kinetics ofn microwave-pretreated canola seeds

摘要

The effect of microwaves on canola oil extraction kinetics and on tocopherol and canolol content in oil was studied. Oil was extracted with hexane at constant temperature (298-333 K) at different times (300-64800 s). In general, for each temperature and time, a significant yield increase was achieved by effect of the pretreatment. A modified Ficic's diffusion model was proposed to explain the extraction process; the parameters were adjusted to obtain washing fractions and the effective diffusion