The modern solvent-based oil extraction process usually consists
of extraction by successive countercurrent extractions with
hexane of the previously mechanically ruptured oleaginous material
(Rosenthal et al., 1996). Due to many concerns regarding food
safety when applying hexane in food processing technologies its
use decreased drastically over the years. Hence it is important, that
for newly developed oil-processing technologies the use of hexane
is minimised or possibly even completely avoided. Although in this
study the use of hexane was not completely avoided due to the
need of high purity oil for analysis, for large scale application of
SubWE the separation of the water and oil phase would probably
be sufficient just by using centrifugation (Rosenthal et al., 1996).