NOVELTY - Controlling the rate of cellulose hydrolysis, comprises providing lignocellulosic biomass, separating the first solid fraction from the first liquid fraction, mixing the first solid fraction with water to form a slurry, optionally, pre-heating the adjusted pH slurry to a temperature less than the critical point of water, contacting the adjusted pH slurry with a second reaction fluid to form a reaction mixture, optionally, reducing the temperature of the reaction mixture to a temperature of below 280 degrees C, and optionally, hydrolyzing the second liquid fraction to form a 6C saccharide.    USE - The method is useful for controlling the rate of cellulose hydrolysis.    ADVANTAGE - The method can be carried out in a simple and cost-effective manner.    DETAILED DESCRIPTION - Controlling the rate of cellulose hydrolysis, comprises providing lignocellulosic biomass at a first pressure greater than atmospheric pressure, comprising a first solid fraction comprising cellulose, and lignin, and a first liquid fraction, separating the first solid fraction from the first liquid fraction, mixing the first solid fraction with water to form a slurry, where the slurry has a pH of 3-4.5, increasing the pH of the slurry by 0.5-5 pH units to form an adjusted pH slurry, optionally, pre-heating the adjusted pH slurry to a temperature less than the critical point of water, contacting the adjusted pH slurry with a second reaction fluid comprising supercritical or near-supercritical fluid to form a reaction mixture comprising a second solid fraction comprising lignin, and a second liquid fraction comprising a soluble 6C saccharide consisting of cello-oligosaccharides, glucose, galactose, mannose and/or fructose, where the supercritical or near-critical fluid comprises water and, optionally, carbon dioxide, where the contacting the adjusted pH slurry with the second reaction fluid has a duration greater than 2 seconds, optionally, reducing the temperature of the reaction mixture to a temperature of below 280 degrees C; and optionally, hydrolyzing the second liquid fraction to form a 6C saccharide selected from the group consisting of 6C oligosaccharide having lower mer units, glucose, galactose, mannose and/or fructose. INDEPENDENT CLAIMS are included for:    (1) a product produced by the method; and    (2) reducing the rate of glucose degradation, comprising providing lignocellulosic biomass at a first pressure greater than atmospheric pressure, comprising a first solid fraction comprising cellulose and lignin, and a first liquid fraction, separating the first solid fraction from the first liquid fraction, mixing the first solid fraction with water to form a slurry, where the slurry has a pH of 3-4.5, increasing the pH of the slurry by 0.5-5 pH units to form an adjusted pH slurry, optionally, pre-heating the adjusted pH slurry to a temperature less than the critical point of water, contacting the adjusted pH slurry with a second reaction fluid comprising supercritical or near-supercritical fluid to form a reaction mixture comprising a second solid fraction comprising lignin, and a second liquid fraction comprising a soluble 6C saccharide consisting of cello-oligosaccharides, glucose, galactose, mannose, and/or fructose, where the supercritical or near-critical fluid comprises water and, optionally, carbon dioxide, where the contacting the adjusted pH slurry with a second reaction fluid has a duration greater than 2 seconds, optionally, reducing the temperature of the reaction mixture to a temperature of below 280 degrees C, and optionally, hydrolyzing the second liquid fraction to form a 6C saccharide consisting of 6C oligosaccharide having lower mer units, glucose, galactose, mannose and/or fructose.