Seed processing, drying and oil extraction methods have a significant impact on oil yields and the
success of beauty leaf as future generation biodiesel feedstocks. Treating the seed kernel to optimum
moisture content was found to be crucial to the success of both mechanical and solvent extraction. It is also noted that the grated kernels provided higher oil yields than the whole kernels in the mechanical
extraction process. Kernels prepared with 15% moisture content provided the highest oil yields for both
extraction processes. Mechanical extraction using the screw press was found ineffective with relatively
lower oil yields for a great deal of effort. On the other hand, chemical extraction using n-hexane as a
solvent was found to be very effective with higher oil yields; however, due to the lack of hexane recovery
system, it was not possible to take full benefits of the effectiveness of the method. Therefore, it is strongly
recommended to use n-hexane recovery system to reduce the cost of beauty leaf bio-oil production
through solvent extraction method.