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Medina DM, Acevedo-Gomez AV, Pellegrini Malpiedi L, Leiva LC. Biochemical characterization of acid proteases from the stomach of palometa (Pygocentrus nattereri, Kner 1858) with potential industrial application. Int J Biol Macromol 2024; 264:130548. [PMID: 38431015 DOI: 10.1016/j.ijbiomac.2024.130548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/30/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Pepsin is one of the major enzymes with significant importance in the food industry, biomedicines, and pharmaceutical formulations. In this work, the main objective was to biochemically characterize a pepsin-like enzymatic extract obtained from Pygocentrus nattereri, a predatory freshwater fish, focusing on their potential industrial application. The obtained extract exhibited optimal activity at 45 °C and pH 1.0-2.0. These proteases remained stable after 2 h of incubation at temperatures ranging from 0° to 45 °C and within pH range of 1.0 to 7.0. Their activity was significantly affected in presence of pepstatin A and SDS, 10 μM and 3.46 mM respectively, while EDTA and PMSF showed partial inhibitory effects. Divalent cations (Ca2+ and Mg2+) did not inhibit the proteolytic activity of the extract; in fact, it improved at a 5 mM CaCl2 concentration. As the NaCl concentration increased, the enzyme activity decreased. However, after desalination, 90 % of the activity was recovered within the tested exposure time. Besides, this extract demonstrated exceptional versatility across diverse industrial applications, including collagen extraction augmentation, IgG hydrolysis facilitation, and silver and polyester recovery from X-ray films. Our results suggest that the obtained enzymatic extract has a wide range of potential applications.
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Affiliation(s)
- D M Medina
- Laboratorio de Investigación en Proteínas (LabInPro), IQUIBA-NEA, CONICET, FACENA, UNNE, Campus "Deodoro Roca" Av. Libertad N°5460, 3400 Corrientes, Argentina; Instituto de Procesos Biotecnológicos y Químicos (IPROBYQ), CONICET-UNR, Mitre 1998, 2000 Rosario, Argentina.
| | - A V Acevedo-Gomez
- Laboratorio de Investigación en Proteínas (LabInPro), IQUIBA-NEA, CONICET, FACENA, UNNE, Campus "Deodoro Roca" Av. Libertad N°5460, 3400 Corrientes, Argentina
| | - L Pellegrini Malpiedi
- Instituto de Procesos Biotecnológicos y Químicos (IPROBYQ), CONICET-UNR, Mitre 1998, 2000 Rosario, Argentina.
| | - L C Leiva
- Laboratorio de Investigación en Proteínas (LabInPro), IQUIBA-NEA, CONICET, FACENA, UNNE, Campus "Deodoro Roca" Av. Libertad N°5460, 3400 Corrientes, Argentina.
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Carvalho SF, Pereiro AB, Araújo JMM. Simultaneous Purification of Human Interferon Alpha-2b and Serum Albumin Using Bioprivileged Fluorinated Ionic Liquid-Based Aqueous Biphasic Systems. Int J Mol Sci 2024; 25:2751. [PMID: 38473998 DOI: 10.3390/ijms25052751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 02/14/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024] Open
Abstract
Interferon alpha-2b (IFN-α2b) is an essential cytokine widely used in the treatment of chronic hepatitis C and hairy cell leukemia, and serum albumin is the most abundant plasma protein with numerous physiological functions. Effective single-step aqueous biphasic system (ABS) extraction for the simultaneous purification of IFN-α2b and BSA (serum albumin protein) was developed in this work. Effects of the ionic liquid (IL)-based ABS functionalization, fluorinated ILs (FILs; [C2C1Im][C4F9SO3] and [N1112(OH)][C4F9SO3]) vs. mere fluoro-containing IL ([C4C1Im][CF3SO3]), in combination with sucrose or [N1112(OH)][H2PO4] (well-known globular protein stabilizers), or high-charge-density salt K3PO4 were investigated. The effects of phase pH, phase water content (%wt), phase composition (%wt), and phase volume ratio were investigated. The phase pH was found to have a significant effect on IFN-α2b and BSA partition. Experimental results show that simultaneous single-step purification was achieved with a high yield (extraction efficiency up to 100%) for both proteins and a purification factor of IFN-α2b high in the enriched IFN-α2b phase (up to 23.22) and low in the BSA-enriched phase (down to 0.00). SDS-PAGE analysis confirmed the purity of both recovered proteins. The stability and structure of IFN-α2b and BSA were preserved or even improved (FIL-rich phase) during the purification step, as evaluated by CD spectroscopy and DSC. Binding studies of IFN-α2b and BSA with the ABS phase-forming components were assessed by MST, showing the strong interaction between FILs aggregates and both proteins. In view of their biocompatibility, customizable properties, and selectivity, FIL-based ABSs are suggested as an improved purification step that could facilitate the development of biologics.
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Affiliation(s)
- Sara F Carvalho
- LAQV, REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Ana B Pereiro
- LAQV, REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - João M M Araújo
- LAQV, REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
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Kang J, Cai Y, Wu Z, Wang S, Yuan WE. Self-Encapsulation of Biomacromolecule Drugs in Porous Microscaffolds with Aqueous Two-Phase Systems. Pharmaceutics 2021; 13:pharmaceutics13030426. [PMID: 33809930 PMCID: PMC8004099 DOI: 10.3390/pharmaceutics13030426] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 03/12/2021] [Accepted: 03/15/2021] [Indexed: 11/16/2022] Open
Abstract
At present, the most commonly used methods of microencapsulation of protein drugs such as spray drying, multiple emulsification, and phase separation, can easily cause the problem of protein instability, which leads to low bioavailability and uncontrolled release of protein drugs. Herein, a novel method to encapsulate protein drugs into porous microscaffolds effectively and stably was described. Ammonium hydrogen carbonate (NH4HCO3) was employed to prepare porous microscaffolds. α-Amylase was encapsulated into the porous microscaffolds without denaturing conditions by an aqueous two-phase system (PEG/Sulfate). The pores were closed by heating above the glass transition temperature to achieve a sustained release of microscaffolds. The pore-closed microscaffolds were characterized and released in vitro. The integrity and activity of protein drugs were investigated to verify that this method was friendly to protein drugs. Results showed that the pores were successfully closed and a high loading amount of 9.67 ± 6.28% (w/w) was achieved. The pore-closed microscaffolds released more than two weeks without initial burst, and a high relative activity (92% compared with native one) of protein demonstrated the feasibility of this method for protein drug encapsulation and delivery.
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Berton P, Tian H, Rogers RD. Phase Behavior of Aqueous Biphasic Systems with Choline Alkanoate Ionic Liquids and Phosphate Solutions: The Influence of pH. Molecules 2021; 26:1702. [PMID: 33803761 PMCID: PMC8003127 DOI: 10.3390/molecules26061702] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/11/2021] [Accepted: 03/15/2021] [Indexed: 01/26/2023] Open
Abstract
Aqueous biphasic systems (ABS) composed of the choline alkanoate ionic liquids (ILs) choline acetate [Cho][OAc], choline propanoate [Cho][Pro], choline butyrate [Cho][But], and choline hexanoate [Cho][Hex], mixed with K3PO4 solutions at pH 7.2 and 14.5, were prepared and their phase diagrams were compared. The ability to form ABS with alkaline K3PO4 solutions decreased in the order [Cho][OAc] ≈ [Cho][Pro] > [Cho][But] > [Cho][Hex], while with neutral K3PO4 solutions, [Cho][OAc] could not form an ABS, and the other three ILs performed similarly. All of the biphasic regions of the ABS decreased with the increase in pH. 1H-NMR data indicated anion exchange between phases in ABS at neutral pH. The ABS at neutral pH were evaluated to extract the triazine herbicides simazine, cyanazine, and atrazine, and the ABS formed by [Cho][Pro] and the pH 7.2 K3PO4 solution has shown extraction recoveries higher than 90%.
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Affiliation(s)
- Paula Berton
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada;
- Chemical and Petroleum Engineering Department, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
| | - Hongzhe Tian
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada;
- Plant Protection College, Shenyang Agricultural University, 120 Dongling Road, Shenyang 110161, China
| | - Robin D. Rogers
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada;
- 525 Solutions Inc., P.O. Box 2206, Tuscaloosa, AL 35403, USA
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Deng Y, Ma Q, Yuan H, Lum GC, Shum HC. Development of dual-component protein microparticles in all-aqueous systems for biomedical applications. J Mater Chem B 2019. [DOI: 10.1039/c8tb03074j] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Protein microparticles assisted by an emulsion droplet template have shown great promise in drug/cell delivery and tissue engineering, as well as diagnosis and treatment of diseases.
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Affiliation(s)
- Yi Deng
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- China
- Department of Mechanical Engineering
| | - Qingming Ma
- Department of Pharmaceutics
- School of Pharmacy
- Qingdao University
- Qingdao 266021
- China
| | - Hao Yuan
- Department of Mechanical Engineering
- University of Hong Kong
- Hong Kong SAR
- China
- HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI)
| | - Galen Chit Lum
- Department of Mechanical and Industrial Engineering
- University of Toronto
- Toronto
- Canada
| | - Ho Cheung Shum
- Department of Mechanical Engineering
- University of Hong Kong
- Hong Kong SAR
- China
- HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI)
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Liu D, Ma Y, Tan J, Wang L, Tang Q, Lu H. CO 2 regulates phase transition of sodium oleate and 3-(diethylamino)-propylamine in aqueous solution. J DISPER SCI TECHNOL 2018. [DOI: 10.1080/01932691.2018.1461642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Dongfang Liu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, P. R. China
- Ministry of Education, Engineering Research Center of Oilfield Chemistry (Southwest Petroleum University), Chengdu, P. R. China
| | - Youlin Ma
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, P. R. China
- Ministry of Education, Engineering Research Center of Oilfield Chemistry (Southwest Petroleum University), Chengdu, P. R. China
| | - Jiang Tan
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, P. R. China
- Ministry of Education, Engineering Research Center of Oilfield Chemistry (Southwest Petroleum University), Chengdu, P. R. China
| | - Lu Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, P. R. China
- Ministry of Education, Engineering Research Center of Oilfield Chemistry (Southwest Petroleum University), Chengdu, P. R. China
| | - Quanwu Tang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, P. R. China
- Ministry of Education, Engineering Research Center of Oilfield Chemistry (Southwest Petroleum University), Chengdu, P. R. China
| | - Hongsheng Lu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, P. R. China
- Ministry of Education, Engineering Research Center of Oilfield Chemistry (Southwest Petroleum University), Chengdu, P. R. China
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Bommenahalli Shashidhara R, Iyyaswami R. Aqueous two phase partitioning of Pisum sativum lectin in PEG/citrate salt system. Prep Biochem Biotechnol 2018; 48:759-767. [PMID: 30303457 DOI: 10.1080/10826068.2018.1504220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 07/21/2018] [Accepted: 07/21/2018] [Indexed: 10/28/2022]
Abstract
Pisum sativum lectin (Psl) is a metalloprotein which is in the center of research interest because of its HIV-1 reverse transcriptase inhibitory activity and mitogenic activity. The application of this lectin in various fields demands the economically feasible and scalable purification strategy other than affinity chromatography. The suitability of aqueous two phase system (ATPS) composed of poly ethylene glycol (PEG) with different salts (sodium citrate, potassium citrate, and ammonium citrate) was evaluated for better partitioning of Psl. The significant factors such as molar mass and concentration of PEG, type and concentration of salts, the effect of tie line length (TLL), ionic strength, and pH were studied to select a suitable system for better partitioning of Psl. ATPS comprising of 18% PEG 6000, 16% sodium citrate, 1% NaCl at the operating condition of pH 8, 40.23% of TLL, and the volume ratio of 1.32 was found to be the best system which gave a maximum partition coefficient and yield of 14.5% and 98.66%, respectively.
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Affiliation(s)
| | - Regupathi Iyyaswami
- a Department of Chemical Engineering , National Institute of Technology Karnataka, Surathkal , Mangalore , India
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Tian H, Bai X, Xu J. Extraction of bisphenol A in honey samples using aqueous biphasic systems coupled with high-performance liquid chromatography. SEPARATION SCIENCE PLUS 2018. [DOI: 10.1002/sscp.201800019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hongzhe Tian
- Plant Protection College; Shenyang Agricultural University; Shenyang China
| | - Xuesong Bai
- Plant Protection College; Shenyang Agricultural University; Shenyang China
| | - Jing Xu
- Liaoning entry-exit inspection and quarantine bureau; Dalian China
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10
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Song CP, Ramanan RN, Vijayaraghavan R, MacFarlane DR, Chan ES, Show PL, Yong ST, Ooi CW. Effect of salt-based adjuvant on partition behaviour of protein in aqueous two-phase systems composed of polypropylene glycol and cholinium glycinate. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.09.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Vobecká L, Romanov A, Slouka Z, Hasal P, Přibyl M. Optimization of aqueous two-phase systems for the production of 6-aminopenicillanic acid in integrated microfluidic reactors-separators. N Biotechnol 2018; 47:73-79. [PMID: 29614323 DOI: 10.1016/j.nbt.2018.03.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 03/29/2018] [Accepted: 03/29/2018] [Indexed: 01/27/2023]
Abstract
Aqueous two-phase systems (ATPSs) were screened for the production of 6-aminopenicillanic acid (6-APA) catalyzed by penicillin acylase, followed by the extractive separation of 6-APA from the reaction mixture. The key point of this study was to find an ATPS exhibiting a large difference in the partition coefficients of the biocatalyst and reaction products. Several ATPSs based on polyethylene glycol (PEG)/phosphate, PEG/citrate, and PEG/dextran were tested. We found that an ATPS consisting of 15 wt% of PEG 4000, 10 wt% of phosphates, 75 wt% of water (pH value 8.0 after dissolution) provided optimal separation of 6-APA from the enzyme. While the 6-APA was mainly found in the top PEG phase, the free enzyme favored the bottom salt-rich phase. This ATPS also fulfils other important requirements: (i) high buffering capacity, reducing an undesirable pH decrease due to the dissociation of phenylacetic acid (the side product of the reaction), (ii) a relatively low cost of the ATPS components, (iii) the possibility of electrophoretic transport of fine droplets as well as the reaction products for both the acceleration of phase separation and the enhancement of 6-APA concentration in the product stream. Extraction experiments in microcapillary and batch systems showed that the transport of 6-APA formed in the salt-rich phase to the corresponding PEG phase could occur within 30 s. The experimental results described form a base of knowledge for the development of continuously operating integrated microfluidic reactors-separators driven by an electric field for the efficient production of 6-APA.
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Affiliation(s)
- Lucie Vobecká
- University of Chemistry and Technology, Prague, Department of Chemical Engineering, Technická 5, 166 28 Praha 6, Czech Republic.
| | - Alexandr Romanov
- University of Chemistry and Technology, Prague, Department of Chemical Engineering, Technická 5, 166 28 Praha 6, Czech Republic.
| | - Zdeněk Slouka
- University of Chemistry and Technology, Prague, Department of Chemical Engineering, Technická 5, 166 28 Praha 6, Czech Republic.
| | - Pavel Hasal
- University of Chemistry and Technology, Prague, Department of Chemical Engineering, Technická 5, 166 28 Praha 6, Czech Republic.
| | - Michal Přibyl
- University of Chemistry and Technology, Prague, Department of Chemical Engineering, Technická 5, 166 28 Praha 6, Czech Republic.
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Ma Q, Yuan H, Song Y, Chao Y, Mak SY, Shum HC. Partitioning-dependent conversion of polyelectrolyte assemblies in an aqueous two-phase system. SOFT MATTER 2018; 14:1552-1558. [PMID: 29443349 DOI: 10.1039/c7sm02275a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Partitioning refers to the distribution of solute molecules in the two immiscible phases of a mixture of two solutions, such as an aqueous two-phase system (ATPS). The partitioning of RNA and peptide has been adjusted in situ to facilitate their assembly into intracellular membraneless organelles. Despite the immense potential of this approach in artificial systems, a partitioning-dependent assembly of macromolecules has been limited, due to the sophisticated processing associated with their in situ modification. Here we demonstrate an approach to direct the assembly of polyelectrolytes in an ATPS through varying their partitioning via pH changes. Microcapsules can be converted to microgel particles as the polyelectrolytes selectively partition to different emulsion phases when changing pH. Such partitioning-dependence can also be equally applied for complexing hydrophilic nanoparticles with polyelectrolytes in an ATPS. By enabling access of hydrophilic materials across the aqueous interface freely, the ATPS allows modification of their intrinsic properties in situ; this advantage will inspire more versatile control over the partitioning of hydrophilic materials and will create new multi-functional biomaterials.
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Affiliation(s)
- Qingming Ma
- Department of Mechanical Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, China.
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Patel N, Bracewell DG, Sorensen E. Dynamic modelling of aqueous two-phase systems to quantify the impact of bioprocess design, operation and variability. FOOD AND BIOPRODUCTS PROCESSING 2018. [DOI: 10.1016/j.fbp.2017.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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14
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Nanoparticulation of bovine serum albumin and poly-d-lysine through complex coacervation and encapsulation of curcumin. Colloids Surf B Biointerfaces 2017; 159:759-769. [DOI: 10.1016/j.colsurfb.2017.08.047] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 07/29/2017] [Accepted: 08/25/2017] [Indexed: 12/19/2022]
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15
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Response surface methodology for the evaluation of guanidine hydrochloride partitioning in polymer-salt aqueous two-phase system. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-017-0108-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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16
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Moody ML, Huddleston JG, Berton P, Zhang J, Rogers RD. The effects of pH on the partitioning of aromatic acids in a polyethylene glycol/dextran aqueous biphasic system. SEP SCI TECHNOL 2017. [DOI: 10.1080/01496395.2016.1269809] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Melanie L. Moody
- Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Jonathan G. Huddleston
- Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama, USA
- Advanced Bioprocessing Centre, Institute of Environment Health and Societies, Brunel University, London, United Kingdom
| | - Paula Berton
- Department of Chemistry, McGill University, Montreal, Canada
| | - Jianhua Zhang
- Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Robin D. Rogers
- Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama, USA
- Department of Chemistry, McGill University, Montreal, Canada
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Yue L, He Z, Zhu Y, Shang Y, Liu H. Physicochemical Characterization of Novel Aqueous Two-Phase System: Gemini Surfactant 12-2-12/NaBr/H2O. Appl Biochem Biotechnol 2015; 175:3557-70. [DOI: 10.1007/s12010-015-1526-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 01/21/2015] [Indexed: 10/24/2022]
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Vijayaragavan KS, Zahid A, Young JW, Heldt CL. Separation of porcine parvovirus from bovine serum albumin using PEG–salt aqueous two-phase system. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 967:118-26. [DOI: 10.1016/j.jchromb.2014.07.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 07/09/2014] [Accepted: 07/13/2014] [Indexed: 12/26/2022]
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19
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Reis IAO, Santos SB, Pereira FDS, Sobral CRS, Freire MG, Freitas LS, Soares CMF, Lima ÁS. Extraction and Recovery of Rutin from Acerola Waste using Alcohol-Salt-Based Aqueous Two-Phase Systems. SEP SCI TECHNOL 2014. [DOI: 10.1080/01496395.2013.860461] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Golmohammadi H, Dashtbozorgi Z, Acree WE. Prediction of Bovine Serum Albumin-Water Partition Coefficients of a Wide Variety of Neutral Organic Compounds by Means of Support Vector Machine. Mol Inform 2012; 31:867-78. [DOI: 10.1002/minf.201200091] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Accepted: 11/16/2012] [Indexed: 11/10/2022]
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Shcharbin D, Klajnert B, Bryszewska M. The effect of PAMAM dendrimers on human and bovine serum albumin at different pH and NaCl concentrations. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 16:1081-93. [PMID: 16231600 DOI: 10.1163/1568562054798518] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The effect of PAMAM G3.5, PAMAM G4 and PAMAM-OH G4 dendrimers on human and bovine serum albumins has been studied by fluorescence spectroscopy at different pH and ionic strength. It has been shown that the interactions between dendrimers and proteins depend on pH and the efficiency of interactions can be regulated by changing pH. The maximal pH dependence was observed for interactions between albumins and PAMAM G4 dendrimer. At physiological pH all dendrimers affect proteins in the maximum degree. Dendrimers had no effect on N-F and N-B transitions of albumins. The effect of dendrimers on HSA was smaller than for BSA. The increase of NaCl concentration led to a decrease of interactions between dendrimers and proteins.
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Affiliation(s)
- D Shcharbin
- Institute of Biophysics and Cellular Engineering, National Academy of Sciences of Belarus, Minsk, Belarus
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22
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Lu YM, Yang YZ, Zhao XD, Xia CB. Bovine serum albumin partitioning in polyethylene glycol (PEG)/potassium citrate aqueous two-phase systems. FOOD AND BIOPRODUCTS PROCESSING 2010. [DOI: 10.1016/j.fbp.2009.12.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Huh YS, Jeong CM, Chang HN, Lee SY, Hong WH, Park TJ. Rapid separation of bacteriorhodopsin using a laminar-flow extraction system in a microfluidic device. BIOMICROFLUIDICS 2010; 4:14103. [PMID: 20644672 PMCID: PMC2905269 DOI: 10.1063/1.3298608] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Accepted: 01/04/2010] [Indexed: 05/16/2023]
Abstract
A protein separation technology using the microfluidic device was developed for the more rapid and effective analysis of target protein. This microfluidic separation system was carried out using the aqueous two-phase system (ATPS) and the ionic liquid two-phase system (ILTPS) for purification method of the protein sample, and the three-flow desalting system was used for the removal of salts from the sucrose-rich sample. Partitioning of the protein sample was observed in ATPS or ILTPS with the various pHs. The microdialysis system was applied to remove small molecules, such as sucrose and salts in the microfluidic channel with the different flow rates of buffer phase. A complex purification method, which combines microdialysis and ATPS or ILTPS, was carried out for the effective purification of bacteriorhodopsin (BR) from the purple membrane of Halobacterium salinarium, which was then analyzed by sodium dodecyl sulfatepolyacrylamide gel electrophoresis and matrix-assisted laser desorptionionization time-of-flight. Furthermore, we were able to make a stable three-phase flow controlling the flow rate in the microfluidic channel. Our complex purification methods were successful in purifying and recovering the BR to its required value.
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Elfstrand L, Eliasson AC, Wahlgren M. The Effect of Starch Material, Encapsulated Protein and Production Conditions on the Protein Release from Starch Microspheres. J Pharm Sci 2009; 98:3802-15. [DOI: 10.1002/jps.21693] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Biao N, Junfen W, Xuejun C. Preparation and recycling of aqueous two-phase systems with pH-sensitive amphiphilic terpolymer PADB. Biotechnol Prog 2009; 25:820-4. [DOI: 10.1002/btpr.146] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Nalinanon S, Benjakul S, Visessanguan W, Kishimura H. Partitioning of protease from stomach of albacore tuna (Thunnus alalunga) by aqueous two-phase systems. Process Biochem 2009. [DOI: 10.1016/j.procbio.2008.12.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Kuwabara K, Ohtaguchi K. Size-Effects in the Separation of Bovine Serum Albumin through an Aqueous Polymer Two-Phase Systems on the Micron-Size Devices. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2008. [DOI: 10.1252/jcej.07we198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Negrete A, Ling TC, Lyddiatt A. Aqueous two-phase recovery of bio-nanoparticles: a miniaturization study for the recovery of bacteriophage T4. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 854:13-9. [PMID: 17448735 DOI: 10.1016/j.jchromb.2007.03.041] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2006] [Revised: 03/02/2007] [Accepted: 03/25/2007] [Indexed: 11/28/2022]
Abstract
Biotechnology industry has recently been demanding nanoparticulate products (20-200 nm) such as viruses, plasmids, virus-like particles and drug delivery assemblies. These products are mainly used as gene delivery systems in gene therapy protocols. During the process development for the manufacture of these products, it is crucial to optimize the recovery and purification steps. Unfortunately, the high value of some bio-nanoparticles complicates the optimization studies. The solvent extraction method with aqueous two-phase systems (ATPS) has been used to successfully recover bioproducts on a large scale. In this study, the potential miniaturization of ATPS is presented. The partition behavior of pure bovine serum albumin (BSA) in PEG-800-phosphate and bacteriophage T4 in PEG 8000-phosphate and PEG 600-sulphate systems were studied at three different scales (10 g, 2 g and 300 microl). The results obtained showed that the volume ratio (V(R)) for BSA (V(R)=1.0) was comparable to the blank systems at the scales studied. Additionally, the partition coefficient (K) was also similar (K=0.05) with more than 82% of BSA concentrated in the bottom phase. Same system was challenged with bacteriophage T4 showing a V(R)=1.0 and K greater than 5 with the infective particles concentrated in the top phase. The bacteriophage T4 was concentrated in opposite phase in the PEG-600-sulfate system with a consistent V(R)=0.8 and K<0.2 for the scales analyzed. The partition behavior the bacteriophage T4 was comparable to that reported previously for adenoviral vectors in same system at 15 ml scale. The results obtained demonstrated that the miniaturization of ATPS is feasible and reproducible for the two models selected. This provides significant information about the miniaturization process of such ATPS for their potential generic applications in the recovery of different bio-nanoparticle products.
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Affiliation(s)
- Alejandro Negrete
- Biochemical Recovery Group, Department of Chemical Engineering, School of Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
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Münchow G, Hardt S, Kutter JP, Drese KS. Electrophoretic partitioning of proteins in two-phase microflows. LAB ON A CHIP 2007; 7:98-102. [PMID: 17180211 DOI: 10.1039/b612669n] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
This work reports on protein transport phenomena discovered in partitioning experiments with a novel setup for continuous-flow two-phase electrophoresis consisting of a microchannel in which a phase boundary is formed in flow direction. Proteins can be partitioned exploiting their affinity to different aqueous phases in two-phase systems. This separation process may be enhanced or extended by applying an electric field perpendicular to the phase boundary. In this context, microsystems offer new possibilities, as interfacial forces usually dominate over volume forces, thus allowing a superior control of the formation and arrangement of liquid/liquid phase boundaries. The two immiscible phases which are injected separately into the microchannel are taken from a polyethylene glycol (PEG)-dextran system. The side walls of the channel are partially made of gel material which serves as an ion conductor and decouples the channel from the electrodes, thus preventing bubble generation inside the separation channel. The experiments show that the electrophoretic transport of proteins between the laminated liquid phases is characterized by a strong asymmetry. When bovine serum albumin (BSA) is introduced into the PEG-rich phase, it can easily be transferred into the dextran-rich phase via an applied electric field of low strength or just by diffusion. In the reverse case, up to a certain field strength the transfer to the opposing phase is strongly inhibited. Only if the field strength is further increased will the BSA molecules leave the dextran-rich phase almost completely.
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Affiliation(s)
- G Münchow
- Institut für Mikrotechnik Mainz GmbH, D-55129, Mainz, Germany.
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Partitioning of Proteins using a Hydrophobically Modified Ethylene Oxide/SDS Aqueous Two-phase System. World J Microbiol Biotechnol 2005. [DOI: 10.1007/s11274-005-1442-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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32
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Capezio L, Romanini D, Picó GA, Nerli B. Partition of whey milk proteins in aqueous two-phase systems of polyethylene glycol–phosphate as a starting point to isolate proteins expressed in transgenic milk. J Chromatogr B Analyt Technol Biomed Life Sci 2005; 819:25-31. [PMID: 15797517 DOI: 10.1016/j.jchromb.2005.01.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2004] [Accepted: 01/20/2005] [Indexed: 10/25/2022]
Abstract
Partitioning behaviour of the bovine whey proteins (bovine serum albumin, alpha lactoalbumin and beta lactoglobulin) and alpha-1 antitrypsin in aqueous two-phase systems prepared with polyethyleneglycol (molecular masses: 1000; 1500 and 3350)-potassium phosphate was analysed. Bovine serum albumin and alpha lactoalbumin concentrated in the polyethyleneglycol rich phase with a partition coefficient of 10.0 and 27.0, respectively, while beta lactoglubulin and alpha-1 antitrypsin showed affinity for the phosphate-rich phase with a partition coefficient of 0.07 and 0.01, respectively. An increase of medium pH induced an increase of the partition coefficient of these proteins while the increase in polyethyleneglycol molecular mass induced the opposite behaviour. The system polyethyleneglycol 1500-pH 6.3 showed the best capacity for recovering the alpha-1 antitrypsin with a yield of 80% and a purification factor between 1.5 and 1.8 from an artificial mixture of the milk whey proteins and alpha-1 antitrypsin. The method appears to be suitable as a starting point to isolate proteins expressed in transgenic milk.
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Affiliation(s)
- Lorena Capezio
- Physical Chemistry Department, Faculty of Biochemical and Pharmaceutical Sciences, CONICET and FonCyT, National University of Rosario, S2002RLK Rosario, Argentina
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