Experiments were performed in a single step
(without separators) in order to select the optimal
temperature (T) and pressure (P) for obtaining a high
yield of rice bran oil and the highest content of tocols
in the oil. The operational conditions for extractions
done in a single separation stage were 150, 200, and
250 bar and 25, 40, 50, and 60ºC with an average
solvent flow rate of 0.0756 kg h-1. The experiments
were conducted for each operational conditions using
two different procedures: the first one was used to
the yield of a total extraction process of 8 hours. The
second procedure was to obtain the extraction curve,
with solute collected at one-hour intervals, during an
extraction process of 8 hours.