食品工业科技2012，Vol.33Issue(6)：324-326,331,4.
聚乙二醇／盐双水相萃取L-苯丙氨酸的研究
Study on aqueous two-phase extraction of L-phenylalanine by polyethylene glycol/salt system
摘要
Abstract
An aqueous two- phase system of polyethylene glycol （PEG）/salt with the behavior of forming aqueous two-phase and the distribution rules of L-phenylalanine in the aqueous two-phase system were studied.Effects of the molecular weight of polyethylene glycol ,the mass fraction of polyethylene glycol ,the types and concentrations of salts,the initial concentration of L-phenylalanine and pH value were investigated.When the mass fraction of PEG1000 was 27% ,the mass concentration of K2HPO4was 0.]5g/mL,the initial concentration of L-phenylalanine was 10g/L and pH value was about 8.5,the highest extraction yield of L-phenylalanine could reach 99.5 %, partition coefficient of L-phenylalanine could reach 186.5.关键词
汉水相萃取/聚乙二醇/L-苯丙氨酸Key words
aqueous two- phase extraction/polyethylene glycol/L- phenylalanine分类
轻工纺织引用本文复制引用
孙晨,刘文举,刘宁宁..聚乙二醇／盐双水相萃取L-苯丙氨酸的研究[J].食品工业科技,2012,33(6):324-326,331,4.基金项目
校引进人才专项基金（2009BS002）. （）
