Discussion
Presentation from Table 1 shows that oil yield increased with increase in applied pressure for both coarse and fine particle samples. There is no significant (p > 0.05) difference in the oil yield obtained at the different applied pressure between
the fine and coarse particle size samples. The main determinant of oil yield is the pressing time, which agrees with the findings of Fashina and Ajibola (1989) on the effect of applied pressure on fine particle size samples of conophor seeds.