Patent ID: 8663708

Claim:
A process for preparing a product of vegetal origin, comprising the steps of: (a) washing crushed vegetal material with a liquid selected from the group consisting of: water between about room temperature and about 60° C.; a mixture of water and a C 1 -C 3 alcohol between about 20:80 and about 5:95 (v/v) at about room temperature; and a mixture of water and acetone between about 20:80 and about 40:60 (v/v) at about room temperature; and separating a solid and a liquid resulting from the wash as many times as needed to get the washing liquid to remove less than about 50 g of material per liter of washing liquid; (b) performing an extraction from the solid obtained in step (a) at room or pressurized pressure, in conditions selected from the group consisting of: water between about 80° C. and about its boiling point; a C 1 —CH 3 alcohol between about 40° C. and about its boiling point; a mixture of water and a glycol between about 80° C. and about its boiling point; dimethylformamide between about 80° C. and about its boiling point; and dimethylsulphoxide between about 80 and about 150° C.; and separating the solid and the liquid resulting from the extraction while maintaining a temperature of equal to or higher than about 40° C.; (c) chilling the liquid obtained in step (b) and collecting a resulting precipitate, optionally evaporating part of the solvent before chilling; (d) drying the precipitate obtained in step (c) to obtain a dried product with a solvent content equal to or lower than about 10% percent by weight; (e) subjecting the dried product resulting from step (d) to a temperature in the range of about 120° C. and about 180° C. for at least 3 minutes; and (f) chilling the product obtained in step (e).