In terms of oil yield from the two extraction methods, solvent extraction was vastly more successfully.
For the test sample extractions as shown in Fig. 5, the samples with 15% absolute moisture content
produced the highest oil yields, averaging approximately 54% (with respect to input dry mass). The
difference was only between samples with an absolute moisture content of between 10% and 15%.
However, the major barrier for solvent extraction process is the cost of solvent.