Thus,the optimum pH for the hydrolysis of konjac powder was 6.0. -mannanases from various bacteria were active and stable ratherin acidic pH range, but in terms of the hydrolysis of KG, the optimal pH of the enzyme was around 7–8.
This was affected by the buffer compositions (Nakajima & Matsuura, 1997), so the activity and stability of the enzyme are different.