Bamboo wood preprocessing method and application of bamboo wood in enzymatic saccharification

The invention belongs to the field of bioethanol, and particularly relates to a bamboo wood preprocessing method and application of bamboo wood in enzymatic saccharification. At present, when fuel ethanol is prepared through the bamboo wood, the conversion rate is low during enzymatic saccharification of the bamboo wood, and the yield of ethanol is greatly influenced. The bamboo wood is preprocessed, and the enzymolysis conditions of enzymatic saccharification of the bamboo wood are optimized. The bamboo wood preprocessing method includes the steps of presoaking the bamboo wood through alkaline sulfite, and conducting low-intensity steam explosion on the presoaked bamboo wood under specific conditions. By preprocessing the bamboo wood, the conversion rate of converting the bamboo wood into glucose during enzymolysis is effectively increased, by-products including alkali lignin and lignin sulfonate are obtained at the same time, and the utilization value of the bamboo wood is improved. The conversion rate of glucose can reach up to 92.3%.