Nanofiltration Process of Phenylalanine and Aspartic Acid Aqueous Solution
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摘要: 選擇NTR7450膜對L-苯丙氨酸和L-天冬氨酸水溶液進行了納濾分離過程研究,討論了不同pH下氨基酸的透過特性,pH=5~8時,NTR7450膜對L-苯丙氨酸和L-天冬氨酸的截留率分別為0和90%.根據實驗結果進行了模擬計算.結果表明,通過調節pH值,L-苯丙氨酸和L-天冬氨酸可以被有效地分離。Abstract: The permeation experiments of L-phenylalanine and L-aspartic acid aqueous solution were carried out with NTR7450 membrane. When pH=5~8 the rejections to L-phenylalanine and L-aspartic acid by NTR7450 membrane are about 0 and 90%, respectively. The concentration and separation process of phenylalanine and aspartic acid solution was simulated. The results showed that L-phenylalanine and L-aspartic acid can be separated satisfactorily by adjusting the pH value.
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Key words:
- aminoacid /
- separation /
- nanofiltration
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