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Khetsomphou E, Deboli F, Donten ML, Bazinet L. Performance and Impact of Crosslinking Level of Hierarchical Anion-Exchange Membranes on Demineralization of a Complex Food Solution by Electrodialysis. MEMBRANES 2024; 14:155. [PMID: 39057663 PMCID: PMC11279135 DOI: 10.3390/membranes14070155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 06/21/2024] [Accepted: 06/29/2024] [Indexed: 07/28/2024]
Abstract
Promising results were recently reported for hierarchical ion-exchange membranes, fabricated by the UV crosslinking of a thin functional coating on a porous substrate, on model NaCl solution demineralization by electrodialysis (ED). Hierarchical anion-exchange membranes (hAEMs) have never been tested with complex solutions to demonstrate their potential use in the biofood industry. The impact of three different crosslinking densities of the ion-exchange coating (EbN-1, EbN-2 and EbN-3) on the performances of whey demineralization by ED was investigated and compared with commercial AMX. The results showed that by increasing the coating crosslinking density, the membrane conductivity decreased, leading to an increase in the global system resistance during whey demineralization (from +28% to +64%). However, 18% sweet whey solutions were successfully treated until 70% demineralization for all membranes. The energy consumption (averaged EbN value of 14.8 vs. 15.1 Wh for AMX) and current efficiency (26.0 vs. 27.4%) were similar to the control. Potential fouling by non-protein nitrogen was detected by ATR-FTIR for hAEMs impacting some membranes properties and ED performances. Overall, EbN-1 obtained results were comparable with the benchmark and can be considered as an alternative membrane for whey demineralization by ED and other applications in the demineralization of complex products from the food industry.
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Affiliation(s)
- Elodie Khetsomphou
- Institute of Nutrition and Functional Foods (INAF), Dairy Science and Technology Research Centre (STELA) and Department of Food Sciences, Université Laval, Quebec, QC G1V 0A6, Canada;
- Laboratoire de Transformation Alimentaire et Procédés ÉlectroMembranaires (LTAPEM, Laboratory of Food Processing and ElectroMembrane Processes), Université Laval, Quebec, QC G1V 0A6, Canada
| | - Francesco Deboli
- Department of Chemical Engineering, KU Leuven, 3001 Leuven, Belgium;
- Amer-Sil SA, 8281 Kehlen, Luxembourg;
| | | | - Laurent Bazinet
- Institute of Nutrition and Functional Foods (INAF), Dairy Science and Technology Research Centre (STELA) and Department of Food Sciences, Université Laval, Quebec, QC G1V 0A6, Canada;
- Laboratoire de Transformation Alimentaire et Procédés ÉlectroMembranaires (LTAPEM, Laboratory of Food Processing and ElectroMembrane Processes), Université Laval, Quebec, QC G1V 0A6, Canada
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Rulence A, Perreault V, Thibodeau J, Firdaous L, Fliss I, Bazinet L. Nisin Purification from a Cell-Free Supernatant by Electrodialysis in a Circular Economy Framework. MEMBRANES 2023; 14:2. [PMID: 38276315 PMCID: PMC10820977 DOI: 10.3390/membranes14010002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/08/2023] [Accepted: 12/14/2023] [Indexed: 01/27/2024]
Abstract
Nisin, an antimicrobial peptide produced by Lactococcus lactis strains, is a promising natural preservative for the food industry and an alternative to antibiotics for the pharmaceutical industry against Gram-positive bacteria. Nisin purification is commonly performed using salting out and chromatographic techniques, which are characterized by their low yields, the use of solvents and the production of large volumes of effluents. In the present work, the purification of nisin from a cell-free supernatant (CFS), after the production of nisin by fermentation on a whey permeate medium, was studied using ammonium sulfate precipitation and electrodialysis (ED) as a promising eco-friendly process for nisin purification. Results showed an increase in nisin precipitation using a 40% ammonium sulfate saturation (ASS) level with a purification fold of 73.8 compared with 34.5 and no purification fold for a 60% and 20% ASS level, respectively. The results regarding nisin purification using ED showed an increase in nisin purification and concentration fold, respectively, of 21.8 and 156 when comparing the final product to the initial CFS. Nisin-specific activity increased from 75.9 ± 4.4 to 1652.7 ± 236.8 AU/mg of protein. These results demonstrated the effectiveness of ED coupled with salting out for nisin purification compared with common techniques. Furthermore, the process was noteworthy for its relevance in a circular economy scheme, as it does not require any solvents and avoids generating polluting effluents. It can be employed for the purification of nisin and the recovery of salts from salting out, facilitating their reuse in a circular economy.
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Affiliation(s)
- Alexandre Rulence
- UMR Transfrontalière BioEcoAgro N°1158, Lille University, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Liège University, Université de Picardie Jules Verne (UPJV), YNCREA, Artois University, Littoral Côte d’Opale University, ICV—Institut Charles Viollette, F-59000 Lille, France; (A.R.); (L.F.)
- Institute of Nutrition and Functional Foods (INAF), Dairy Research Center (STELA), Laval University, Quebec, QC G1V 0A6, Canada; (V.P.); (J.T.); (I.F.)
- Laboratoire de Transformation Alimentaire et Procédés ÉlectroMembranaires (LTAPEM, Laboratory of Food Processing and Electro-Membrane Processes), Food Science, Laval University, Quebec, QC G1V 0A6, Canada
| | - Véronique Perreault
- Institute of Nutrition and Functional Foods (INAF), Dairy Research Center (STELA), Laval University, Quebec, QC G1V 0A6, Canada; (V.P.); (J.T.); (I.F.)
- Laboratoire de Transformation Alimentaire et Procédés ÉlectroMembranaires (LTAPEM, Laboratory of Food Processing and Electro-Membrane Processes), Food Science, Laval University, Quebec, QC G1V 0A6, Canada
| | - Jacinthe Thibodeau
- Institute of Nutrition and Functional Foods (INAF), Dairy Research Center (STELA), Laval University, Quebec, QC G1V 0A6, Canada; (V.P.); (J.T.); (I.F.)
- Laboratoire de Transformation Alimentaire et Procédés ÉlectroMembranaires (LTAPEM, Laboratory of Food Processing and Electro-Membrane Processes), Food Science, Laval University, Quebec, QC G1V 0A6, Canada
| | - Loubna Firdaous
- UMR Transfrontalière BioEcoAgro N°1158, Lille University, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Liège University, Université de Picardie Jules Verne (UPJV), YNCREA, Artois University, Littoral Côte d’Opale University, ICV—Institut Charles Viollette, F-59000 Lille, France; (A.R.); (L.F.)
| | - Ismail Fliss
- Institute of Nutrition and Functional Foods (INAF), Dairy Research Center (STELA), Laval University, Quebec, QC G1V 0A6, Canada; (V.P.); (J.T.); (I.F.)
| | - Laurent Bazinet
- Institute of Nutrition and Functional Foods (INAF), Dairy Research Center (STELA), Laval University, Quebec, QC G1V 0A6, Canada; (V.P.); (J.T.); (I.F.)
- Laboratoire de Transformation Alimentaire et Procédés ÉlectroMembranaires (LTAPEM, Laboratory of Food Processing and Electro-Membrane Processes), Food Science, Laval University, Quebec, QC G1V 0A6, Canada
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Dammak L, Pismenskaya N. A Commemorative Special Issue in Honor of Professor Victor Nikonenko. MEMBRANES 2023; 13:774. [PMID: 37755196 PMCID: PMC10534664 DOI: 10.3390/membranes13090774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023]
Abstract
Victor Nikonenko is celebrating his 70th birthday this year [...].
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Affiliation(s)
- Lasâad Dammak
- Institut de Chimie et des Matériaux Paris-Est (ICMPE), Université Paris-Est (UPEC), UMR 7182, CNRS, 2–8 rue Henri Dunant, 94320 Thiais, France;
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