酵母发酵法去除玉米皮水解液中葡萄糖的研究

Removal of Glucose from Xylose Corn Seed-coat Acid Hydrolysis by Yeast Fermentation

以酸水解过的玉米皮为原料,采用酵母发酵法去除水解液中的葡萄糖。通过单因素分析,对影响去除效果的主要因素进行了研究。利用正交试验筛选出最佳工艺参数。结果表明,酵母添加量2.0%,水解液质量分数为14%。溶液pH值4.0,发酵16 h能达到最好效果,葡萄糖的去除率可达94%以上。

Corn seed-coat acid hydrolysis is used as material to remove glucose by the method of yeast fermentation.The factors affecting the result of removal are studied by mono-factor analysis and the optimum technique parameters are determined by orthogonal test.The results show that under the optimal conditions of concentration of the addition of yeast 2%,corn seed-coat acid hydrolysis 14%,temperature 30 ℃,pH 4.0,incubation time 16 h,over 94% glucose in corn seed-coat acid hydrolysis could be removed.