NOVELTY - An organic-raw-material manufacturing system (10) consists of a hydrothermal decomposition apparatus (13), an enzyme saccharifier (17), fermenters (18,34), and a sulfuric-acid decomposition apparatus (33). Counter-contact of biomass feedstock (11) is carried out with pressurized hot water (12) in the hydrothermal decomposition apparatus, and hydrothermal decomposition is carried out and a lignin component and a hemicellulose component are separated out. The reaction temperature in the hydrothermal decomposition apparatus is 180-240 degrees C.    USE - System is used for manufacturing organic raw material e.g. alcohol, petroleum substitutes, and amino acids, using biomass feedstock (all claimed) e.g. broad leaved tree, herbs, agricultural waste materials, and foodstuffs waste materials. Uses include but are not limited to ethanol, foodstuffs raw material, liquefied petroleum gas, aircraft-use jet fuel, diesel oil, fuel gas, vinyl acetate emulsion, polyester, polycarbonate, and nylon.    ADVANTAGE - The system enables efficient transfer of lignin component and hemicellulose component into pressurized hot water, saccharification of hexose liquid, and manufacture of organic raw materials, at low temperature.    DETAILED DESCRIPTION - An organic-raw-material manufacturing system consists of a hydrothermal decomposition apparatus, an enzyme saccharifier, fermenters (18,34), and a sulfuric-acid decomposition apparatus. Counter-contact of biomass feedstock is carried out with pressurized hot water in the hydrothermal decomposition apparatus, and hydrothermal decomposition is carried out and a lignin component and a hemicellulose component are transferred into pressurized hot water, and lignin component and hemicellulose component are separated out of biomass solid (14). The reaction temperature in the hydrothermal decomposition apparatus is 180-240 degrees C. In the enzyme saccharifier, cellulose in biomass solid content discharged from the hydrothermal decomposition apparatus is enzyme-treated and enzyme saccharification is carried out into sugar liquid (16) containing hexose. Fermenter (18) manufactures any one of alcohol (20), petroleum substitutes, and amino acids by fermentation process using sugar liquid (16). The sulfuric-acid decomposition apparatus carries out sulfuric-acid decomposition of the hemicellulose component in the hot-water discharge liquid (30) discharged from the hydrothermal decomposition apparatus, and decomposes into sugar liquid (32) containing pentose. Fermenter (34) manufactures any one of alcohol, petroleum substitutes, and amino acids by fermentation process using sugar liquid (32). An INDEPENDENT CLAIM is included for manufacturing method of organic raw material.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the alcohol manufacturing system as the organic-raw-material manufacturing method. (Drawing includes non-English language text)    Organic-raw-material manufacturing system (10)    Biomass feedstock (11)    Pressurized hot water (12)    Hydrothermal decomposition apparatus (13)    Biomass solid (14)    Sugar liquids (16,32)    Enzyme saccharifier (17)    Fermenters (18,34)    Alcohol (20)    Hot-water discharge liquid (30)    Sulfuric-acid decomposition apparatus (33)