Changes of lipoprotein phospholipids during rapeseed processing

During rapeseed processing about 0.4—0.8 % lipids are liberated from their bound form and extracted into expeller-pressed or extracted oils, increasing thus the yield in an oil processing plant, compared with the yield predicted on the basis of Soxhlet extraction [1]. If the liberated lipids originate from lipoproteins denatured during processing, they would contain high percentage of phospholipids. Therefore, we have studied changes of phospholipids during rapeseed processing.