Selective transport of neutral amino acids across a double-membrane system comprising cation and anion exchange membranes

被引：14

作者：

Ueno, Kenta ^{[1
]}

Doi, Tsubasa ^{[1
]}

Nanzai, Ben ^{[2
]}

Igawa, Manabu ^{[1
]}

机构：

[1] Kanagawa Univ, Fac Engn, Kanagawa Ku, Yokohama, Kanagawa 2218686, Japan

[2] Shizuoka Inst Technol, Fac Sci & Technol, Fukuroi, Shizuoka 4378555, Japan

来源：

JOURNAL OF MEMBRANE SCIENCE | 2017年 / 537卷

关键词：

Selective permeability; Dialysis separation; Molecular weight; Hydropathy index; HYDROPHOBIC MEMBRANE; SEPARATION; ION; ELECTRODIALYSIS; PERMEATION; EXTRACTION; SOLUTES; PROTEIN;

D O I：

10.1016/j.memsci.2017.04.013

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A double-membrane system comprising a cation-exchange membrane and an anion-exchange membrane can separate acidic, basic, and neutral amino acids in a dialysis process without changing the solution pH. Amino acids with similar electrical charges, neutral amino acids, were also separated in this system according to their molecular weights and hydrophilic/hydrophobic properties in a neutral pH range. The transport of neutral amino acids was enhanced across the H+ type cation-exchange membrane and the OH-type anion-exchange membrane, and the transport properties in this system were investigated. The transport equation in this system for amino acids was derived using the constants of the membrane properties. Neutral amino acids are separable efficiently by the combination of cation and anion exchange membranes.

引用

页码：344 / 352

页数：9

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