Hi all-
so SWIM has these MG seeds and ground up 26 g to a powder. The flour was defatted with 2X50 mL tetrachloroethylene, filtered and dried. Extraction with 5 g tartaric acid in minimum of water and ~150 mL acetone followed; portion wise, 20 mL at a time, filtering with cotton and washing the cotton with last 10 mL. Evaporation so far has yielded a yellow fluid, growing viscous VERY gradually, with some xtals forming, most likely excess tartaric acid. More later.
-catfish