The method comprises providing plant residue having a shell portion (90 wt.%), partially hydrolyzing constituents of the plant residue including carbohydrate, fat and/or protein, and separating liquid phase into dissolved components and solid phase. A suspension is provided for the hydrolysis of the plant residue in a solvent such as water (40 wt.%). The hydrolysis is performed at a temperature of 30-38[deg] C and performed with addition of enzymes, acid or base having a pH of 5.5 and inoculant microorganisms. The method further comprises washing, sterilizing and drying the solid phase. The method comprises providing plant residue having a shell portion (90 wt.%), partially hydrolyzing constituents of the plant residue including carbohydrate, fat and/or protein, and separating liquid phase into dissolved components and solid phase. A suspension is provided for the hydrolysis of the plant residue in a solvent such as water (40 wt.%). The hydrolysis is performed at a temperature of 30-38[deg] C and performed with addition of enzymes, acid or base having a pH of 5.5 and inoculant microorganisms. The method further comprises washing, sterilizing and drying the solid phase. The liquid phase is transferred as an energy-rich liquid for a biogas plant. An independent claim is included for a system for processing plant residue.본 발명은 식물 잔여물, 특히 씨앗류 및 견과류의 껍질, 심지어 특히 코코아 콩의 껍질, 곡물 종자의 껍질 및 쌀 잔여물을 가공하기 위한 방법 및 설비에 관한 것이다. 상기 방법은 하기 단계들, 즉 (i) 적어도 20 중량%의 껍질 함량을 포함하는 식물 잔여물을 제공하는 단계, (ii) 식물 잔여물의 성분들을 적어도 부분적으로 가수 분해하는 단계, 특히 탄수화물, 지방 및/또는 단백질을 적어도 부분적으로 가수 분해 및/또는 발효하는 단계를 포함한다. 후속해서 용해된 성분들을 포함하는 액상 및 고상의 분리가 이루어질 수 있다. 고형분은 식이섬유로서 이용될 수 있고, 액상은 바이오가스 설비를 위한 공급물로서 이용될 수 있다.
