【摘要】 为对青稞(Hordeum vulgare)β-葡聚糖进行纯化,以膜通量为指标,采用单因素和正交试验,对青稞β-葡聚糖进行超滤处理,分析超滤过程中操作压力、温度和料液流速对膜通量的影响。结果表明,优化的超滤条件为操作压力0.12 MPa、温度45℃、料液流速20 mL/s。该条件下超滤膜通量可达38.5 L/(m2·h),β-葡聚糖截留率达到99.2%,表明超滤处理可应用于青稞β-葡聚糖纯化。更多还原

【Abstract】 In order to purification of barley β-glucan, with permeate flux as index, the influence of operation pressure,temperature and feed rate were investigated by signal test and orthogonal test.The results show that the optimum purification conditions were as follows: operation pressure 0.12 MPa,temperature 45 ℃ and feed rate 20 m L / s.In this condition,the permeate flux was 38.5 L /(m2·h) and recovery percent was 99.2%. Therefore,ultrafiltration is feasible to purification of barley β-glucan.更多还原