Interestingly enough this is also true of a fair number of staple food stocks, especially other legumes. Lima beans contain linamarin, lentils and chickpeas contain lectins, as do pretty much all the other beans you’ve heard of in their uncooked form.
Those, of course, you just cook in order to make them delicious. With these, this Terviva firm seems to have developed and patented a treatment process involving a solvent-based extraction under sonication. I’m only skimming a patent from a field that’s not my own, but it looks like they’re able to do it by mashing it up and washing it with either a methylated ketone like acetone (00120) or ethanol (00141) [0].
Apparently the wash works just as well for the protein-rich seedcake as it does for the oil you express [1].