The Twin-Screw Extrusion Technology, an Original and Powerful Solution for the Biorefinery of Sunflower Whole Plant

P. Evon, V. Vandenbossche, P.Y. Pontalier & L. Rigal
The objective of this study was to evaluate the feasibility of an aqueous process for the biorefinery of sunflower whole plant using a twin-screw extruder. Aqueous extraction of oil was chosen as an environment-friendly alternative to the solvent extraction. The extruder was used to carry out three essential unit operations: grinding, liquid/solid extraction, and liquid/solid separation. Wringing out the mixing was effective. However, drying of the cake meal was not optimal. Lixiviation of cotyledon cells...