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Climatic Chamber Stability Tests of Lipase-Catalytic Octyl-Sepharose Systems. Catalysts 2023. [DOI: 10.3390/catal13030501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
The application of the climatic chamber presented in this paper to assess the storage stability of immobilized lipases is a new approach characterized by the potential of unifying the study conditions of biocatalysts created in various laboratories. The data achieved from storing lipases in the climatic chambers may be crucial for the chemical and pharmaceutical industry. Our paper describes the developed protocols for immobilization via interfacial activation of lipase B from Candida antarctica (CALB) and lipase OF from Candida rugosa (CRL-OF) on the Octyl-Sepharose CL-4B support. Optimization included buffers with different pH values of 4–9 and a wide range of ionic strength from 5 mM to 700 mM. It has been shown that the optimal medium for the CALB immobilization process on the tested support is a citrate buffer at pH 4 and high ionic strength of 500 mM. Implementing new optimal procedures enabled the hyperactivation of immobilized CALB (recovery activity 116.10 ± 1.70%) under the applicable reaction conditions using olive oil as a substrate. Importantly, CALB storage stability tests performed in a climatic chamber under drastic temperature and humidity conditions proved good stability of the developed biocatalyst (residual activity 218 ± 7.3% of dry form, after 7 days). At the same time, the low storage stability of CRL OF in a climatic chamber was demonstrated. It should be emphasized that the use of a climatic chamber to test the storage stability of a dry form of the studied lipases immobilized on Octyl-Sepharose CL-4B is, to our knowledge, described for the first time in the literature.
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Habib T, Brämer C, Heuer C, Ebbecke J, Beutel S, Bahnemann J. 3D-Printed microfluidic device for protein purification in batch chromatography. LAB ON A CHIP 2022; 22:986-993. [PMID: 35107475 DOI: 10.1039/d1lc01127h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Modern 3D printers enable not only rapid prototyping, but also high-precision printing-microfluidic devices with channel diameters of just a few micrometres can now be readily assembled using this technology. Such devices offer a myriad of benefits (including miniaturization) that significantly reduce sample and buffer volumes and lead to lower process costs. Although such microfluidic devices are already widely used in the field of biotechnology, there is a lack of research regarding the potential of miniaturization by 3D-printed devices in lab-scale chromatography. In this study, the efficacy of a 3D-printed microfluidic device which provides a substantially lower dead-volume compared to established chromatography systems is demonstrated for batch purification applications. Furthermore, this device enables straightforward integration of various components (such as microfluidic valves and chromatographic units) in an unprecedentedly flexible fashion. Initial proof-of-concept experiments demonstrate successful gradient elution with bovine serum albumin (BSA), and the purification of a pharmaceutically relevant IgG monoclonal antibody (mAb).
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Affiliation(s)
- Taieb Habib
- Institute of Technical Chemistry, Leibniz University Hannover, Callinstraße 5, 30167 Hannover, Germany.
| | - Chantal Brämer
- Institute of Technical Chemistry, Leibniz University Hannover, Callinstraße 5, 30167 Hannover, Germany.
| | - Christopher Heuer
- Institute of Technical Chemistry, Leibniz University Hannover, Callinstraße 5, 30167 Hannover, Germany.
| | - Jan Ebbecke
- Institute of Technical Chemistry, Leibniz University Hannover, Callinstraße 5, 30167 Hannover, Germany.
| | - Sascha Beutel
- Institute of Technical Chemistry, Leibniz University Hannover, Callinstraße 5, 30167 Hannover, Germany.
| | - Janina Bahnemann
- Institute of Technical Chemistry, Leibniz University Hannover, Callinstraße 5, 30167 Hannover, Germany.
- Cell Culture Technology, Technical Faculty, Bielefeld University, Universitätsstraße 25, 33625 Bielefeld, Germany
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Gerstweiler L, Billakanti J, Bi J, Middelberg APJ. Control strategy for multi-column continuous periodic counter current chromatography subject to fluctuating inlet stream concentration. J Chromatogr A 2022; 1667:462884. [PMID: 35182911 DOI: 10.1016/j.chroma.2022.462884] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/01/2022] [Accepted: 02/05/2022] [Indexed: 01/08/2023]
Abstract
Fluctuations of the inlet feed stream concentration are a challenge in controlling continuous multi-column counter current chromatography systems with standard methods. We propose a new control strategy based on calculated product column breakthrough from UV sensor signals by neglecting an impurity baseline and instead using the impurity to product ratio. This calculation is independent of the inlet feed concentration. In-silico simulation showed that the proposed method can calculate the product column breakthrough perfectly even with fluctuating and highly unstable inlet feed concentration during a loading cycle. Applying the proposed method to control a three column periodic counter current chromatography process with fluctuating inlet feed concentration resulted in constant column loading in each cycle, while using the standard method failed to do so. Unavoidable band broadening caused by diffusion and dispersion has been identified as an inherent limiting factor for accurate calculation of column breakthrough comparing inlet and outlet UV signals. The proposed advanced calculations increase the robustness of periodic counter current chromatography and extend the capability to process unstable inlet streams.
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Affiliation(s)
- Lukas Gerstweiler
- School of Chemical Engineering and Advanced Material, The University of Adelaide, Adelaide, South Australia 5000, Australia.
| | - Jagan Billakanti
- Global Life Sciences Solutions Australia Pty Ltd, Level 11, 32 Phillip St, Parramatta, New South Wales 2150, Australia
| | - Jingxiu Bi
- Division of Research and Innovation, The University of Adelaide, Adelaide 5000, Australia
| | - Anton P J Middelberg
- Division of Research and Innovation, The University of Adelaide, Adelaide 5000, Australia
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Gerstweiler L, Bi J, Middelberg AP. Continuous downstream bioprocessing for intensified manufacture of biopharmaceuticals and antibodies. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116272] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Nadar S, Shooter G, Somasundaram B, Shave E, Baker K, Lua LHL. Intensified Downstream Processing of Monoclonal Antibodies Using Membrane Technology. Biotechnol J 2020; 16:e2000309. [PMID: 33006254 DOI: 10.1002/biot.202000309] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The need to intensify downstream processing of monoclonal antibodies to complement the advances in upstream productivity has led to increased attention toward implementing membrane technologies. With the industry moving toward continuous operations and single use processes, membrane technologies show promise in fulfilling the industry needs due to their operational flexibility and ease of implementation. Recently, the applicability of membrane-based unit operations in integrating the downstream process has been explored. In this article, the major developments in the application of membrane-based technologies in the bioprocessing of monoclonal antibodies are reviewed. The recent progress toward developing intensified end-to-end bioprocesses and the critical role membrane technology will play in achieving this goal are focused upon.
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Affiliation(s)
- Sathish Nadar
- Australian Research Council Training Centre for Biopharmaceutical Innovation, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Corner College and Cooper Roads, Brisbane, Queensland, 4072, Australia
| | - Gary Shooter
- Australian Research Council Training Centre for Biopharmaceutical Innovation, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Corner College and Cooper Roads, Brisbane, Queensland, 4072, Australia
| | - Balaji Somasundaram
- Protein Expression Facility, The University of Queensland, Corner College and Cooper Roads, Brisbane, Queensland, 4072, Australia
| | - Evan Shave
- Australian Research Council Training Centre for Biopharmaceutical Innovation, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Corner College and Cooper Roads, Brisbane, Queensland, 4072, Australia.,Pharma services group, Thermo Fisher Scientific, 37 Kent St, Woolloongabba, Brisbane, Queensland, 4102, Australia
| | - Kym Baker
- Pharma services group, Thermo Fisher Scientific, 37 Kent St, Woolloongabba, Brisbane, Queensland, 4102, Australia
| | - Linda H L Lua
- Australian Research Council Training Centre for Biopharmaceutical Innovation, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Corner College and Cooper Roads, Brisbane, Queensland, 4072, Australia.,Protein Expression Facility, The University of Queensland, Corner College and Cooper Roads, Brisbane, Queensland, 4072, Australia
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Quarter of a Century after: A Glimpse at the Conformation and Mechanism of Candida antarctica Lipase B. CRYSTALS 2020. [DOI: 10.3390/cryst10050404] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Lipase B from Candida antarctica (CAL-B) belongs to the family of α/β-hydrolases, and is one from the most extensively used biocatalysts in the kinetic resolution of amines and alcohols in a racemic state, in the desymmetrization of diacetates or diols, and in the stereoselective synthesis of chiral intermediate compounds for obtaining the various pharmaceuticals and agents which protect plants. There are also many cases of promiscuous reactions catalyzed by CAL-B. The number of very important results appeared recently in the literature in the years 2015–2019, regarding the crystal structure and conformation of CAL-B molecule. Before 2015, there was a long period of a complete lack of information concerning this enzyme’s structure. The earlier reports about CAL-B structure were dated between 1994–1995, and did not provide enough conclusions about the mechanism of the enzyme. The recently solved structures give a hint of the enzyme mechanism in three dimensions.
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Ekramzadeh K, Brämer C, Frister T, Fohrer J, Kirschning A, Scheper T, Beutel S. Optimization of factors influencing enzyme activity and product selectivity and the role of proton transfer in the catalytic mechanism of patchoulol synthase. Biotechnol Prog 2020; 36:e2935. [DOI: 10.1002/btpr.2935] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/07/2019] [Accepted: 10/17/2019] [Indexed: 02/03/2023]
Affiliation(s)
| | | | | | - Jörg Fohrer
- Institute of Organic Chemistry Hanover Germany
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Brämer C, Tünnermann L, Gonzalez Salcedo A, Reif OW, Solle D, Scheper T, Beutel S. Membrane Adsorber for the Fast Purification of a Monoclonal Antibody Using Protein A Chromatography. MEMBRANES 2019; 9:E159. [PMID: 31783640 PMCID: PMC6950724 DOI: 10.3390/membranes9120159] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/21/2019] [Accepted: 11/25/2019] [Indexed: 01/20/2023]
Abstract
Monoclonal antibodies are conquering the biopharmaceutical market because they can be used to treat a variety of diseases. Therefore, it is very important to establish robust and optimized processes for their production. In this article, the first step of chromatography (Protein A chromatography) in monoclonal antibody purification was optimized with a focus on the critical elution step. Therefore, different buffers (citrate, glycine, acetate) were tested for chromatographic performance and product quality. Membrane chromatography was evaluated because it promises high throughputs and short cycle times. The membrane adsorber Sartobind® Protein A 2 mL was used to accelerate the purification procedure and was further used to perform a continuous chromatographic run with a four-membrane adsorber-periodic counter-current chromatography (4MA-PCCC) system. It was found that citrate buffer at pH 3.5 and 0.15 M NaCl enabled the highest recovery of >95% and lowest total aggregate content of 0.26%. In the continuous process, the capacity utilization of the membrane adsorber was increased by 20%.
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Affiliation(s)
- Chantal Brämer
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
| | - Lisa Tünnermann
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
| | - Alina Gonzalez Salcedo
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
| | - Oscar-Werner Reif
- Sartorius Stedim Biotech, August-Spindler-Straße 11, 37079 Göttingen, Germany;
| | - Dörte Solle
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
| | - Thomas Scheper
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
| | - Sascha Beutel
- Institute of Technical Chemistry, Callinstraße 5, 30167 Hannover, Germany (L.T.); (A.G.S.); (D.S.); (T.S.)
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Development and Testing of a 4-Columns Periodic Counter-Current Chromatography System Based on Membrane Adsorbers. SEPARATIONS 2019. [DOI: 10.3390/separations6040055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Continuous chromatography can surmount the disadvantages of batch chromatography like low productivities and extensive usage of consumables. In this work, a 4-column continuous chromatographic system based on the principle of periodic counter-current chromatography (PCCC) was developed and tested with a model protein mixture of BSA and lysozyme. The PCCC system was specially designed for membrane adsorbers as an alternative to conventional columns to facilitate the use of disposable process units and to further increase the productivity due to higher convective mass transport in the membrane adsorber. Membrane adsorber Sartobind® Q was used to continuously purify BSA from the protein mixture. The usage of PCCC led to an increased capacity utilization (here 20%) and higher space–time-yields, and thus to a remarkable productivity increase and cost savings.
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Brämer C, Ekramzadeh K, Lammers F, Scheper T, Beutel S. Optimization of continuous purification of recombinant patchoulol synthase fromEscherichia coliwith membrane adsorbers. Biotechnol Prog 2019; 35:e2812. [DOI: 10.1002/btpr.2812] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/13/2019] [Accepted: 03/21/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Chantal Brämer
- Institut für Technische Chemie, Leibniz Universität Hannover, Callinstraße 5, 30167 Hannover, Germany
| | - Kimia Ekramzadeh
- Institut für Technische Chemie, Leibniz Universität Hannover, Callinstraße 5, 30167 Hannover, Germany
| | - Frank Lammers
- Sanofi‐Aventis Deutschland GmbH Frankfurt am Main Germany
| | - Thomas Scheper
- Institut für Technische Chemie, Leibniz Universität Hannover, Callinstraße 5, 30167 Hannover, Germany
| | - Sascha Beutel
- Institut für Technische Chemie, Leibniz Universität Hannover, Callinstraße 5, 30167 Hannover, Germany
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