Pre-dried kernels (at 60 or 105
◦
C) were ground with a com-mercial coffee grinder, and stored in a desiccator until further
use. Extraction was performed using technical grade n-hexane in a
Soxhlet (70
◦
C) for 6 h. De-oiled residue from the hexane extraction
(referred hereafter as meal) was dried at 60
◦
C to remove residual
hexane, and stored at 4
◦
C until further use.