中空纤维酶膜反应器连续制备DP_(8-12)糊精的研究  

Study on the Continuous Production of DP_(8-12) Dextrin with Hollow Fiber Membrane-Enzymatic Reactor

作　　者：朱秋享[1] 李志达[1] 魏建敏[2] 林顺忠[1] 方志活[1] 吴红京[3] 

机构地区：[1]福州大学侨兴轻工学院,福州350002 [2]天津纺织工学院膜分离工程研究所,天津300160 [3]中科院福建物构所,福州350002

出　　处：《中国粮油学报》2001年第6期12-16,共5页Journal of the Chinese Cereals and Oils Association

基　　金：福建省教委科技三项基金资助项目

摘　　要：采用聚砜中空纤维酶膜反应器系统 (截留分子量 2 0 0 0 0 ) ,运用α -淀粉酶酶解淀粉并及时分离 ,连续制备了DP8- 12 糊精。通过对酶膜反应器连续化工艺的二次回归正交组合试验 ,获得了该系统的二次模型 ,并确定了产品适宜的工艺参数范围 :流量为 5～ 15mL/s ;酶用量为 0 .6 0～ 0 .80u/g淀粉 ;淀粉浓度为 2 0 %～2 5 %A polysulphone hollow fiber membrane (molecular weight cut-off 20,000) enzymatic reactor was used to produce continuously DP 8-12 dextrin from starch by α-amylase.Through a quadratic-orthogonal experiment,a quadratic model for the system was established and satisfactory technological conditions of the system were detemined as followed:flow rate 5-15 ml/s dosage of amylase 0.60-0.80u/g starch,and concentration of starch 20%-25%.

关 键 词：DP8-12糊精 Α-淀粉酶 中空纤维酶膜反应器 正交组合试验 工艺参数 淀粉酶解 

分 类 号：TS236.9[轻工技术与工程—粮食、油脂及植物蛋白工程]