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.