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Bipolar Membrane Electrodialysis for Direct Conversion of L-Ornithine Monohydrochloride to L-Ornithine

In this study, bipolar membrane electrodialysis was proposed to directly convert L-ornithine monohydrochloride to L-ornithine. The stack configuration was optimized in the BP-A (BP, bipolar membrane; A, anion exchange membrane) configuration with the Cl(−) ion migration through the anion exchange me...

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Autores principales: He, Jinfeng, Liu, Wenlong, Hao, Jianrong, Ma, Xixi, Zheng, Zhiyi, Fang, Yinghan, Liang, Yuxin, Tian, Zhihao, Sun, Li, Li, Chuanrun, Yan, Haiyang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488261/
https://www.ncbi.nlm.nih.gov/pubmed/37685982
http://dx.doi.org/10.3390/ijms241713174
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author He, Jinfeng
Liu, Wenlong
Hao, Jianrong
Ma, Xixi
Zheng, Zhiyi
Fang, Yinghan
Liang, Yuxin
Tian, Zhihao
Sun, Li
Li, Chuanrun
Yan, Haiyang
author_facet He, Jinfeng
Liu, Wenlong
Hao, Jianrong
Ma, Xixi
Zheng, Zhiyi
Fang, Yinghan
Liang, Yuxin
Tian, Zhihao
Sun, Li
Li, Chuanrun
Yan, Haiyang
author_sort He, Jinfeng
collection PubMed
description In this study, bipolar membrane electrodialysis was proposed to directly convert L-ornithine monohydrochloride to L-ornithine. The stack configuration was optimized in the BP-A (BP, bipolar membrane; A, anion exchange membrane) configuration with the Cl(−) ion migration through the anion exchange membrane rather than the BP-A-C (C, cation exchange membrane) and the BP-C configurations with the L-ornithine(+) ion migration through the cation exchange membrane. Both the conversion ratio and current efficiency follow BP-A > BP-A-C > BP-C, and the energy consumption follows BP-A < BP-A-C < BP-C. Additionally, the voltage drop across the membrane stack (two repeating units) and the feed concentration were optimized as 7.5 V and 0.50 mol/L, respectively, due to the low value of the sum of H(+) ions leakage (from the acid compartment to the base compartment) and OH(−) ions migration (from the base compartment to the acid compartment) through the anion exchange membrane. As a result, high conversion ratio (96.1%), high current efficiency (95.5%) and low energy consumption (0.31 kWh/kg L-ornithine) can be achieved. Therefore, bipolar membrane electrodialysis is an efficient, low energy consumption and environmentally friendly method to directly convert L-ornithine monohydrochloride to L-ornithine.
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spelling pubmed-104882612023-09-09 Bipolar Membrane Electrodialysis for Direct Conversion of L-Ornithine Monohydrochloride to L-Ornithine He, Jinfeng Liu, Wenlong Hao, Jianrong Ma, Xixi Zheng, Zhiyi Fang, Yinghan Liang, Yuxin Tian, Zhihao Sun, Li Li, Chuanrun Yan, Haiyang Int J Mol Sci Article In this study, bipolar membrane electrodialysis was proposed to directly convert L-ornithine monohydrochloride to L-ornithine. The stack configuration was optimized in the BP-A (BP, bipolar membrane; A, anion exchange membrane) configuration with the Cl(−) ion migration through the anion exchange membrane rather than the BP-A-C (C, cation exchange membrane) and the BP-C configurations with the L-ornithine(+) ion migration through the cation exchange membrane. Both the conversion ratio and current efficiency follow BP-A > BP-A-C > BP-C, and the energy consumption follows BP-A < BP-A-C < BP-C. Additionally, the voltage drop across the membrane stack (two repeating units) and the feed concentration were optimized as 7.5 V and 0.50 mol/L, respectively, due to the low value of the sum of H(+) ions leakage (from the acid compartment to the base compartment) and OH(−) ions migration (from the base compartment to the acid compartment) through the anion exchange membrane. As a result, high conversion ratio (96.1%), high current efficiency (95.5%) and low energy consumption (0.31 kWh/kg L-ornithine) can be achieved. Therefore, bipolar membrane electrodialysis is an efficient, low energy consumption and environmentally friendly method to directly convert L-ornithine monohydrochloride to L-ornithine. MDPI 2023-08-24 /pmc/articles/PMC10488261/ /pubmed/37685982 http://dx.doi.org/10.3390/ijms241713174 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
He, Jinfeng
Liu, Wenlong
Hao, Jianrong
Ma, Xixi
Zheng, Zhiyi
Fang, Yinghan
Liang, Yuxin
Tian, Zhihao
Sun, Li
Li, Chuanrun
Yan, Haiyang
Bipolar Membrane Electrodialysis for Direct Conversion of L-Ornithine Monohydrochloride to L-Ornithine
title Bipolar Membrane Electrodialysis for Direct Conversion of L-Ornithine Monohydrochloride to L-Ornithine
title_full Bipolar Membrane Electrodialysis for Direct Conversion of L-Ornithine Monohydrochloride to L-Ornithine
title_fullStr Bipolar Membrane Electrodialysis for Direct Conversion of L-Ornithine Monohydrochloride to L-Ornithine
title_full_unstemmed Bipolar Membrane Electrodialysis for Direct Conversion of L-Ornithine Monohydrochloride to L-Ornithine
title_short Bipolar Membrane Electrodialysis for Direct Conversion of L-Ornithine Monohydrochloride to L-Ornithine
title_sort bipolar membrane electrodialysis for direct conversion of l-ornithine monohydrochloride to l-ornithine
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488261/
https://www.ncbi.nlm.nih.gov/pubmed/37685982
http://dx.doi.org/10.3390/ijms241713174
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