The researchers investigated how to break down soybean straw using a fungus-produced enzyme called cellulase. They studied the best conditions for both making the enzyme and using it to break down the straw. They found that the best enzyme production happened at 30℃, pH 5.0, with enough moisture and for 96 hours, producing 798.84 FPU/L of enzyme. To break down the straw effectively, the enzyme worked best at 55℃, pH 5.6, for 36 hours, resulting in a 6.98% breakdown yield. The breakdown product mainly consisted of glucose, xylose, and cellobiose, which could be useful in making lactic acid through fermentation later on.