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Titolo:
Nanofiltration of L-phenylalanine and L-aspartic acid aqueous solutions
Autore:
Wang, XL; Ying, AL; Wang, WN;
Indirizzi:
Tsing Hua Univ, Dept Chem Engn, Beijing 100084, Peoples R China Tsing Hua Univ Beijing Peoples R China 100084 ng 100084, Peoples R China Nanjing Univ Chem Technol, Dept Polymer Sci & Engn, Nanjing 210009, Peoples R China Nanjing Univ Chem Technol Nanjing Peoples R China 210009 Peoples R China
Titolo Testata:
JOURNAL OF MEMBRANE SCIENCE
fascicolo: 1, volume: 196, anno: 2002,
pagine: 59 - 67
SICI:
0376-7388(20020215)196:1<59:NOLALA>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
AMINO-ACID; MEMBRANES; SEPARATION; PREDICTION; TRANSPORT; PEPTIDE;
Keywords:
membrane separation; nanofiltration; amino acid; L-phenylalanine; L-aspartic acid;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, XL Tsing Hua Univ, Dept Chem Engn, Beijing 100084, Peoples R China Tsing Hua Univ Beijing Peoples R China 100084 , Peoples R China
Citazione:
X.L. Wang et al., "Nanofiltration of L-phenylalanine and L-aspartic acid aqueous solutions", J MEMBR SCI, 196(1), 2002, pp. 59-67

Abstract

The permeation experiments Of L-phenylalanine (L-Phe) and L-aspartic acid (L-Asp) aqueous solutions were carried out with two commercial nanofiltration (NF) membranes, ESNA2 membrane and ES20 membrane. The rejections to L-Phe and L-Asp by ESNA2 membrane are about 0 and 90%, respectively, at the pH value ranging from 4 to 9, while the rejections to L-Phe and L-Asp by ES20 membrane are almost 100% irrespective of pH value. The results show that these two NF membranes are possible to concentrate and separate L-Phe and L-Asp effectively by choosing proper condition such as the pH value of solution. Based on the experimental results, a simple batch-wise NF process systemwas design for concentration and diafiltration of virtual L-Phe enzymatic reaction solution with Some L-Asp. The simulation results show that it is feasible to separate L-Phe and L-Asp in viewpoint of technology. (C) 2002 Elsevier Science B.V. All rights reserved.

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Documento generato il 09/07/20 alle ore 18:10:42