PURPOSE: A processing method of tomato cake is provided to easily facilitate absorption of Ricoh pen in the human body by treating with conjugated enzyme and pre-treating of tomato cake including seed with heat. CONSTITUTION: A processing method of tomato cake comprises a step of separating cake and tomato juice; a step of heat-treating a tomato cake; a step of enzyme-reacting a heat-treated tomato cake with complex pectic enzyme; an a step of obtaining solid content and filter liquor by centrifuging enzyme-reacted reactant, and obtaining powder by respectively drying solid content and filter liquor. Heat tomato with a steam for 2~10 minutes before separating tomato fruit juice and cake. Perform thermal processing step at 60~80>= for 10~50 minutes. Complex pectic enzyme is a conjugated enzyme having beta - glucanase, arabanase, cellulase, hemicellulase, xylanase and pecticenzyme activation. Enzyme reaction is performed by adding 1% of conjugated enzyme to wet cake (solid content 8~12%) comparison to weight 0.
