Patent ID: 8642108
Filing Date: 2014-02-04
Classification: A23K,C10G,C10L,C11C,Y02E,Y02P

Abstract:
1. Method to prepare fatty acid esters from whole oilseeds, comprising the following successive steps: a. pre-heating whole, non-dried, non-hulled seeds of rape, groundnut, jatropha, castor bean, sesame, olive, sunflower, safflower, soybean, lupin, camelina, cotton, or rice at a temperature of 50° C. for 30 to 60 min; b. flattening the pre-heated, non-dried seeds with their hull; c. drying the flattened seeds at a temperature of between 50 and 100° C. to obtain a water and volatile matter content of between 0.5 and 2.5%, wherein the drying step c) is conducted no later than 24 hours after flattening step b); followed by in discontinuous mode, pre-impregnation with absolute ethanol for 10 to 30 minutes at 40 to 80° C.; d. transesterification by contacting the flattened, dried seeds from step c) with absolute ethanol in the presence of a catalyst; e. separation of liquid and solid phases resulting from transesterification; f. neutralizing the liquid phase derived from step e); and g. removing the ethanol, and glycerine from the neutralized liquid phase to obtain fatty acid esters.