NOVELTY - The apparatus (1) has a chamber (2) which accommodates a kneading target object (100). A shaft (3) is rotationally driven in the chamber. A paddle (4) is connected to the shaft. A motor (5) rotationally drives the shaft. A liquid supply unit (6) supplies the liquid (W) in the chamber. A valve (6a) adjusts the supply state of the liquid to the chamber. A load detection sensor (6b) detects the load of the motor. A control apparatus (6c) controls the valve based on the detection result of the load detection sensor.    USE - Multi-axial kneading apparatus of enzyme-reaction apparatus used in cellulose saccharification apparatus of biomass saccharification apparatus used for ethanol production apparatus (all claimed).    ADVANTAGE - The load of motor can be adjusted reliably by supplying the liquid in chamber by liquid supply unit. The liquidity of kneading target object can be increased, when the liquid is supplied by the liquid supply unit in the chamber. The reaction force received by the paddle can be reduced.    DETAILED DESCRIPTION - The control apparatus makes the output of the motor to increase by continuously at the time of a kneeding start. The supply amount of the liquid is set so that the control apparatus makes the load of motor to a large range not exceeding the allowable load of the motor. INDEPENDENT CLAIMS are included for the following:    (1) an enzyme reaction apparatus is provided with a kneading target object mixed with the mixture of the polysaccharide and saccharogenic amylase containing cellulose;    (2) a cellulose saccharification apparatus decomposes the glucose and produces the degradation product by the enzyme reaction apparatus using solid acid catalyst;    (3) biomass saccharification apparatus has a pressurized hot water reaction apparatus which selectively decomposes the hemi cellulose to make the pressurized hot water to act on the biomass. A solid-liquid-separation device separates the cellulose as solid from the process liquid of the pressurized hot water reaction apparatus. The other catalytic reaction apparatus decomposes the monosaccharide derived from hemi cellulose, when the liquid is separated by the solid-liquid-separation device; and    (4) ethanol production apparatus has fermentation apparatuses which produce ethanol from glucose produced by the biomass saccharification apparatus, and from the monosaccharide derived from the hemi cellulose produced by the biomass saccharification apparatus.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the multi-axial kneading apparatus. (Drawing includes non-English language text)    Multi-axial kneading apparatus (1)    Chamber (2)    Shaft (3)    Paddle (4)    Motor (5)    Liquid supply unit (6)    Valve (6a)    Load detection sensor (6b)    Control apparatus (6c)    Kneading target object (100)    Liquid (W)