魔芋低聚糖生产制备工艺优化研究

Research of preparation and production optimization of mannoligosaccharides

以魔芋精粉为原料,通过正交实验优化超声波法、柠檬酸法和纤维素酶解法降解魔芋葡甘聚糖的工艺参数,并比较这三种方法降解魔芋葡甘聚糖的效率。研究表明纤维素酶解法降解效果最好,纤维素酶法降解魔芋葡甘聚糖的最佳工艺参数为:料液比1.0g/L,酶用量0.25g/L,温度50℃,降解时间100min。

With konjac purified powder as experimental material,using ultrasonic method,citric acid method and cellulose enzymatic hydrolysis method,the degradation process parameters of konjac glucomannan were optimized by the orthogonal test,and these three methods degradation efficiency of konjac glucomannan were compared in this paper. The results showed that cellulose enzymatic hydrolysis degradation was the best,and the optimum conditions were as follows ：material-liquid ratio was 1.0g/L,dosage of enzyme was 0.25g/L,temperature was 50℃,and enzymatic hydrolysis time was 100 min.