NOVELTY - A manufacturing system (10-1) of organic raw material has a hydrothermal decomposition apparatus (14), enzymatic decomposition apparatus (19-1) and fermentation apparatus (21). The hydrothermal decomposition apparatus carries out decomposition of biomass feedstock (11) by contact with pressurized hot water (15), transfer of lignin component and hemicellulose component to hot water, and separation of lignin and cellulose components. The apparatus (19-1) carries out treatment of cellulose using enzyme, and cellulose is decomposed into sugar solution (20-1).    USE - System is used for manufacturing organic raw material, such as alcohol, petroleum substitute product and amino acid.    ADVANTAGE - The system efficiently enables manufacture of organic raw material. The pentose component is effectively recovered.    DETAILED DESCRIPTION - A manufacturing system of organic raw material has a hydrothermal decomposition apparatus, enzymatic decomposition apparatus and fermentation apparatus. The hydrothermal decomposition apparatus carries out decomposition of biomass feedstock by countercurrent contact with pressurized hot water, transfer of lignin component and hemicellulose component to hot water, and separation of lignin and cellulose components from biomass solid (17). The enzymatic decomposition apparatus carries out treatment of cellulose contained in biomass solid using enzyme, and cellulose is decomposed into a sugar solution containing hexose. The fermentation apparatus carries out fermentation processing of sugar solution to produce alcohol, petroleum substitute product or amino acid.    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view of alcohol manufacturing system. (Drawing includes non-English language text)    Manufacturing system (10-1)    Biomass feedstock (11)    Hydrothermal decomposition apparatus (14)    Hot water (15)    Biomass solid content (17)    Enzymatic decomposition apparatus (19-1)    Sugar liquid (20-1)    Fermentation apparatus (21)