In this dissertation, Effect of thermostatic treatment on the pectin extraction frompumpkin and suspensible stability of pumpkin juice was investigated, and processparameters of amylase treatment to starch in lotus roots was optimized. The formulaoptimization to the mixed juice made of pumpkin juice, lotus roots juice, apple juice andpineapple juice in different proposition was carried out. The suspensible stability of thepumpkin juice blend was investigated. The research results and corresponding...