The present invention relates to a process for the solid/liquid extraction of a natural extract contained in at least one vegetable solid or micro-organism comprising at least the following steps:solid/liquid extraction of at least one vegetable solid or micro-organism by a first solvent system comprising a solvent content chosen from the solvents comprising between 5 and 8 carbon atoms and one or two oxygen atoms in ether function, or ketone function, or ester function form, of at least 50% by volume in relation to the total volume of the first solvent system,retrieval of a natural extract, notably comprising or consisting of an oil or a butter, particularly enriched with unsaponifiable.
