PROCESSES FOR SELECTIVE EXTRACTION OF UNSAPONIFIABLE MATERIALS FROM RENEWABLE RAW MATERIALS BY REACTIVE TRITURATION IN THE PRESENCE OF A COSOLVENT

摘要

A method for extracting an unsaponifiable fraction from a renewable raw material, includes the reactive trituration of the raw material dehydrated in the presence of at least one polar organic solvent including at least one light alcohol, at least one non-polar cosolvent immiscible with the light alcohol and at least one catalyst, resulting in the formation of a polar organic phase enriched with lipids functionalized with one or more function(s) chosen from hydroxyl, epoxide, ketone, thiol, aldehyde, ether and amine functions, and of a non-polar organic phase enriched with lipids containing no or few hydroxyl, epoxide, ketone, thiol, aldehyde, ether and amine function(s), and thereafter the concentration of the organic phases.