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Endo-β-1,3-glucanase is used to hydrolyze curdlan in a wide range of oligosaccharides production processes. Using pachymaran as the sole carbon source resulted in an endo-β-1,3-glucanase activity of 86.1 U/mL and an Eendo/Etotal ratio of 0.43, which were 3.2 and 1.65 folds of the values from control (glucose as the sole carbon source), due to the inductive effect of pachymaran as a polysaccharide. However, the cell concentration decreased from 25 to 12 g/L during the late fermentation phase. Therefore, a novel multi-stage feeding strate