| 双极性膜电渗析法制备γ-氨基丁酸 |
| 作者: 北京化工大学 生命科学与技术学院,北京 100029 |
| 单位: 北京化工大学 生命科学与技术学院,北京 100029 |
| 关键词: 双极性膜;电渗析;γ-氨基丁酸 |
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| 出版年,卷(期):页码: 2012, 32(1):112-116 |
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摘要: |
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通过对双极性膜电渗析转化γ-氨基丁酸(GABA)过程的研究,确定了三隔室电渗析工艺的可行性,并利用双极性膜电渗析装置,将γ-氨基丁酸钾盐转化为GABA和KOH。最终结果表明,经三隔室双极性膜电渗析转化和冷却结晶后,可以得到纯度为99%以上的γ-氨基丁酸结晶以及2.5%以上的粗氢氧化钾溶液,对于粗品γ-氨基丁酸溶液双极性膜电渗析转化过程,平均电流效率在60%以上,电耗为2kW•h/(kgGABA)。 |
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The technical feasibility of the production of GABA from its potassium salt by means of bipolar membrane electrodialysis(BMED) method is investigated. By using a three-compartment BMED, GABA and KOH from its salt can be produced. The results show that, after BMED, GABA solution and up to 2.5% KOH can be obtained. When the GABA solution is cooled down, GABA crystal can be collected. The purity of GABA can exceed 99%. And the average electric current efficiency of the process is above 60%, the electric energy consumption is approximately 2kWh per kg of GABA. |
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基金项目: |
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作者简介: |
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The technical feasibility of the production of GABA from its potassium salt by means of bipolar membrane electrodialysis(BMED) method is investigated. By using a three-compartment BMED, GABA and KOH from its salt can be produced. The results show that, after BMED, GABA solution and up to 2.5% KOH can be obtained. When the GABA solution is cooled down, GABA crystal can be collected. The purity of GABA can exceed 99%. And the average electric current efficiency of the process is above 60%, the electric energy consumption is approximately 2kWh per kg of GABA. |
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参考文献: |
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[1]许建军,江波,许时婴.生物合成γ-氨基丁酸的乳酸菌的筛选[J].食品科技,2002(10):7-9. |
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