VERFAHREN ZUR BEHANDLUNG PFLANZLICHER THIOGLYCOSIDHALTIGER ROHSTOFFE

摘要

The invention relates to a method of treating vegetable raw materials containing thioglycoside, particularly brassica and crambe seeds. According to the invention, vegetable thioglycoside-containing raw materials, particularly brassica and crambe seeds and processed products thereof, are pre-crushed, possibly conditioned, flocculated and subjected to repeated extraction with ethanol under pressure, at a boiling temperature corresponding to the excess pressure applied, with a view to obtaining oil and reducing harmful materials. With alternating pressure and relief from pressure after each ethanol treatment, the oil-containing micell is separated at the high pressure, whereupon the extraction residue, still under pressure, is abruptly relieved of pressure. The method removes lipids and thioglycosides as completely as possible from brassica and crambe seeds and processed products thereof, in one operation for obtaining a high quality oil and extracted husk which is substantially free from anti-nutritive constituents.