Oil and press cake production ............................................................................. 18
3.1 Pressing .................................................................................................................. 18
3.2 Solvent extraction .................................................................................................. 23
3.3 Refining process after hot pressing or solvent extraction ..................................... 23
3.6 Extruder technology ............................................................................................... 24
3.6.1 Dry extrusion ........................................................................................................... 25
3.6.2 Extrusion-expelling-method ...