Use of electrodialysis to separate and concentrate gamma-amino butyric acid

作者：Habe H^*; Yamano N; Takeda S; Kataoka S; Nakayama A

来源：Desalination, 2010, 253(1-3): 101-105.

DOI：10.1016/j.desal.2009.11.025

• Electrodialysis
• Cation-exchange membrane
• gamma-amino butyric acid
• L-glutamic acid

Microbial or enzymatic conversion of L-glutamic acid (Glu) is used to produce gamma-aminobutyric acid (GABA). GABA recovery from several model Solutions was demonstrated with two desalting electrodialysis units, equipped with commercial membrane cartridges for cation recovery The effect of pH in 50 g/L of GABA model solution on GABA recovery was investigated using the First unit, the GABA recovery rate was approximately 85% at pH 3. The influence of initial GABA concentrations oil the process performance was investigated using the second unit, the GABA recovery rate. Glu exclusion rate. current efficiency, and energy consumption were 82-89%, 91-94%. 81-85%. and 0 197-0 204 kWh/kg.

• 出版日期2010-4