[关键词]
[摘要]
采用超滤技术从ε-聚赖氨酸（ε-PL）粗品溶液中纯化ε-PL，研究了超滤过程中的操作压力、操作温度、超滤液的体积和料液初始浓度等因素对膜通量和粗品溶液中蛋白截留率及ε-PL透过率的影响；并确立了采用聚砜膜去除ε-PL粗品溶液中蛋白工艺的最佳参数，在此条件下，蛋白去除率达到86.2%，ε-PL透过率达到86.7%。
[Key word]
[Abstract]
The purification of ε-polylysine (ε-PL) by Ultrafiltration was studed. The processing conditions, including effects of operation pressure, temperature, volume and initial concentration of crude product solution, were optimized. Under the optimal conditions, the protein removal rate and the transmittance rate reached 86.2% and 86.7%, respectively.
[中图分类号]
[基金项目]
国家863项目（2006AA102347）
