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Fritzsche S, Hübner H, Oldiges M, Castiglione K. Comparative evaluation of the extracellular production of a polyethylene terephthalate degrading cutinase by Corynebacterium glutamicum and leaky Escherichia coli in batch and fed-batch processes. Microb Cell Fact 2024; 23:274. [PMID: 39390488 DOI: 10.1186/s12934-024-02547-2] [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: 06/26/2024] [Accepted: 09/30/2024] [Indexed: 10/12/2024] Open
Abstract
BACKGROUND With a growing global population, the generation of plastic waste and the depletion of fossil resources are major concerns that need to be addressed by developing sustainable and efficient plastic recycling methods. Biocatalytic recycling is emerging as a promising ecological alternative to conventional processes, particularly in the recycling of polyethylene terephthalate (PET). However, cost-effective production of the involved biocatalyst is essential for the transition of enzymatic PET recycling to a widely used industrial technology. Extracellular enzyme production using established organisms such as Escherichia coli or Corynebacterium glutamicum offers a promising way to reduce downstream processing costs. RESULTS In this study, we compared extracellular recombinant protein production by classical secretion in C. glutamicum and by membrane leakage in E. coli. A superior extracellular release of the cutinase ICCGDAQI was observed with E. coli in batch and fed-batch processes on a litre-scale. This phenomenon in E. coli, in the absence of a signal peptide, might be associated with membrane-destabilizing catalytic properties of the expressed cutinase. Optimisations regarding induction, expression temperature and duration as well as carbon source significantly enhanced extracellular cutinase activity. In particular, in fed-batch cultivation of E. coli at 30 °C with lactose as carbon source and inducer, a remarkable extracellular activity (137 U mL-1) and cutinase titre (660 mg L-1) were achieved after 48 h. Literature values obtained with other secretory organisms, such as Bacillus subtilis or Komagataella phaffii were clearly outperformed. The extracellular ICCGDAQI produced showed high efficacy in the hydrolysis of PET textile fibres, either chromatographically purified or unpurified as culture supernatant. In less than 18 h, 10 g L-1 substrate was hydrolysed using supernatant containing 3 mg cutinase ICCGDAQI at 70 °C, pH 9 with terephthalic acid yields of up to 97.8%. CONCLUSION Extracellular production can reduce the cost of recombinant proteins by simplifying downstream processing. In the case of the PET-hydrolysing cutinase ICCGDAQI, it was even possible to avoid chromatographic purification and still achieve efficient PET hydrolysis. With such production approaches and their further optimisation, enzymatic recycling of PET can contribute to a more efficient and environmentally friendly solution to the industrial recycling of plastics in the future.
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Affiliation(s)
- Stefanie Fritzsche
- Institute of Bioprocess Engineering, Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Paul-Gordan-Straße 3, 91052, Erlangen, Germany
| | - Holger Hübner
- Institute of Bioprocess Engineering, Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Paul-Gordan-Straße 3, 91052, Erlangen, Germany
| | - Marco Oldiges
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428, Jülich, Germany
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074, Aachen, Germany
| | - Kathrin Castiglione
- Institute of Bioprocess Engineering, Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Paul-Gordan-Straße 3, 91052, Erlangen, Germany.
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Kolay A, Kumar A. A Novel Liver Cancer POC Diagnostic Detection Technique by a Gate-engineered Source-extended TFET Device. Med Eng Phys 2024; 125:104133. [PMID: 38508806 DOI: 10.1016/j.medengphy.2024.104133] [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: 10/26/2023] [Revised: 02/05/2024] [Accepted: 02/25/2024] [Indexed: 03/22/2024]
Abstract
This work reports a novel POC diagnostic technique to identify the cancerous liver cell lines by designing a Source-Extended (SE) Tunnel Field Effect Transistor (TFET) having a Single-Gate (SG) with Single-Metal (SM) and Dual-Metal (DM) structure. The proposed structures have been equipped with nanocavities by trenching the gate oxide layer where the needle biopsy obtained liver sample has been immobilized. The detection is based on the difference in drain current and the ratio of the proposed device's ON and OFF state currents, which has been evaluated by obtaining the sensitivities. The cancerous and non-cancerous liver cell lines possess different dielectric properties in high frequencies ranging from 100 MHz to 5 GHz, affecting the cavity region's effective capacitances. The change in the dielectric constant of the specimen at 900 MHz has been considered which results in the change in device drain current and device performance. Various parameters of the device, like the adhesive layer in the cavity region, the material of the gate, the length of the cavities, and the orientation of the cavities, have been modified to observe the performance. The total work has been done in the simulation environment, which includes the study considering the different proportions of cancerous and non-cancerous cells in a particular specimen. A comparative analysis has been made between the performance of the proposed SM and DM gate structure. The proposed detection method has been compared with the existing methods reported in the literature. The proposed method can be considered a novel technique and can be implemented as a point of care (POC) diagnostic to detect whether the specimen liver cell line is cancerous.
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Affiliation(s)
- Anirban Kolay
- Nextgen Adaptive Systems Group, Department of Electrical Engineering, National Institute of Technology Patna, Bihar, India
| | - Amitesh Kumar
- Nextgen Adaptive Systems Group, Department of Electrical Engineering, National Institute of Technology Patna, Bihar, India.
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Priyanka U, Lens PNL. Enhanced production of amylase, pyruvate and phenolic compounds from glucose by light-driven Aspergillus niger-CuS nanobiohybrids. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (OXFORD, OXFORDSHIRE : 1986) 2023; 98:602-614. [PMID: 37066082 PMCID: PMC10087041 DOI: 10.1002/jctb.7153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/29/2022] [Accepted: 06/08/2022] [Indexed: 06/19/2023]
Abstract
BACKGROUND The demand for value-added compounds such as amylase, pyruvate and phenolic compounds produced by biological methods has prompted the rapid development of advanced technologies for their enhanced production. Nanobiohybrids (NBs) make use of both the microbial properties of whole-cell microorganisms and the light-harvesting efficiency of semiconductors. Photosynthetic NBs were constructed that link the biosynthetic pathways of Aspergillus niger with CuS nanoparticles. RESULTS In this work, NB formation was confirmed by negative values of the interaction energy, i.e., 2.31 × 108 to -5.52 × 108 kJ mol-1 for CuS-Che NBs, whereas for CuS-Bio NBs the values were -2.31 × 108 to -4.62 × 108 kJ mol-1 for CuS-Bio NBs with spherical nanoparticle interaction. For CuS-Bio NBs with nanorod interaction, it ranged from -2.3 × 107 to -3.47 × 107 kJ mol-1 . Further, the morphological changes observed by scanning electron microscopy showed the presence of the elements Cu and S in the energy-dispersive X-ray spectra and the presence of CuS bonds in Fourier transform infrared spectroscopy indicate NB formation. In addition, the quenching effect in photoluminescence studies confirmed NB formation. Production yields of amylase, phenolic compounds and pyruvate amounted to 11.2 μmol L-1, 52.5 μmol L-1 and 28 nmol μL-1, respectively, in A. niger-CuS Bio NBs on the third day of incubation in the bioreactor. Moreover, A niger cells-CuS Bio NBs had amino acids and lipid yields of 6.2 mg mL-1 and 26.5 mg L-1, respectively. Furthermore, probable mechanisms for the enhanced production of amylase, pyruvate and phenolic compounds are proposed. CONCLUSION Aspergillus niger-CuS NBs were used for the production of the amylase enzyme and value-added compounds such as pyruvate and phenolic compounds. Aspergillus niger-CuS Bio NBs showed a greater efficiency compared to A. niger-CuS Che NBs as the biologically produced CuS nanoparticles had a higher compatibility with A. niger cells. © 2022 The Authors. Journal of Chemical Technology and Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry (SCI).
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Affiliation(s)
- Uddandarao Priyanka
- Department of Microbiology and Ryan InstituteNational University of IrelandGalwayIreland
| | - Piet NL Lens
- Department of Microbiology and Ryan InstituteNational University of IrelandGalwayIreland
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Pandur Ž, Dular M, Kostanjšek R, Stopar D. Bacterial cell wall material properties determine E. coli resistance to sonolysis. ULTRASONICS SONOCHEMISTRY 2022; 83:105919. [PMID: 35077964 PMCID: PMC8789596 DOI: 10.1016/j.ultsonch.2022.105919] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/23/2021] [Accepted: 01/13/2022] [Indexed: 05/02/2023]
Abstract
The applications of bacterial sonolysis in industrial settings are plagued by the lack of the knowledge of the exact mechanism of action of sonication on bacterial cells, variable effectiveness of cavitation on bacteria, and inconsistent data of its efficiency. In this study we have systematically changed material properties of E. coli cells to probe the effect of different cell wall layers on bacterial resistance to ultrasonic irradiation (20 kHz, output power 6,73 W, horn type, 3 mm probe tip diameter, 1 ml sample volume). We have determined the rates of sonolysis decay for bacteria with compromised major capsular polymers, disrupted outer membrane, compromised peptidoglycan layer, spheroplasts, giant spheroplasts, and in bacteria with different cell physiology. The non-growing bacteria were 5-fold more resistant to sonolysis than growing bacteria. The most important bacterial cell wall structure that determined the outcome during sonication was peptidoglycan. If peptidoglycan was remodelled, weakened, or absent the cavitation was very efficient. Cells with removed peptidoglycan had sonolysis resistance equal to lipid vesicles and were extremely sensitive to sonolysis. The results suggest that bacterial physiological state as well as cell wall architecture are major determinants that influence the outcome of bacterial sonolysis.
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Affiliation(s)
- Žiga Pandur
- University of Ljubljana, Biotechnical Faculty, Večna pot 111, 1000 Ljubljana, SI-Slovenia; University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, 1000 Ljubljana, SI-Slovenia
| | - Matevž Dular
- University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, 1000 Ljubljana, SI-Slovenia
| | - Rok Kostanjšek
- University of Ljubljana, Biotechnical Faculty, Večna pot 111, 1000 Ljubljana, SI-Slovenia
| | - David Stopar
- University of Ljubljana, Biotechnical Faculty, Večna pot 111, 1000 Ljubljana, SI-Slovenia.
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Zupanc M, Pandur Ž, Stepišnik Perdih T, Stopar D, Petkovšek M, Dular M. Effects of cavitation on different microorganisms: The current understanding of the mechanisms taking place behind the phenomenon. A review and proposals for further research. ULTRASONICS SONOCHEMISTRY 2019; 57:147-165. [PMID: 31208610 DOI: 10.1016/j.ultsonch.2019.05.009] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/26/2019] [Accepted: 05/08/2019] [Indexed: 05/05/2023]
Abstract
A sudden decrease in pressure triggers the formation of vapour and gas bubbles inside a liquid medium (also called cavitation). This leads to many (key) engineering problems: material loss, noise, and vibration of hydraulic machinery. On the other hand, cavitation is a potentially useful phenomenon: the extreme conditions are increasingly used for a wide variety of applications such as surface cleaning, enhanced chemistry, and wastewater treatment (bacteria eradication and virus inactivation). Despite this significant progress, a large gap persists between the understanding of the mechanisms that contribute to the effects of cavitation and its application. Although engineers are already commercializing devices that employ cavitation, we are still not able to answer the fundamental question: What precisely are the mechanisms how bubbles can clean, disinfect, kill bacteria and enhance chemical activity? The present paper is a thorough review of the recent (from 2005 onward) work done in the fields of cavitation-assisted microorganism's destruction and aims to serve as a foundation to build on in the next years.
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Affiliation(s)
- Mojca Zupanc
- University of Ljubljana, Faculty of Mechanical Engineering, Askerceva 6, 1000 Ljubljana, Slovenia
| | - Žiga Pandur
- University of Ljubljana, Faculty of Mechanical Engineering, Askerceva 6, 1000 Ljubljana, Slovenia; University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Tadej Stepišnik Perdih
- University of Ljubljana, Faculty of Mechanical Engineering, Askerceva 6, 1000 Ljubljana, Slovenia
| | - David Stopar
- University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Martin Petkovšek
- University of Ljubljana, Faculty of Mechanical Engineering, Askerceva 6, 1000 Ljubljana, Slovenia
| | - Matevž Dular
- University of Ljubljana, Faculty of Mechanical Engineering, Askerceva 6, 1000 Ljubljana, Slovenia.
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Bhilare KD, Patil MD, Tangadpalliwar S, Shinde A, Garg P, Banerjee UC. Machine learning modelling for the ultrasonication-mediated disruption of recombinant E. coli for the efficient release of nitrilase. ULTRASONICS 2019; 98:72-81. [PMID: 31207474 DOI: 10.1016/j.ultras.2019.06.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 05/15/2019] [Accepted: 06/09/2019] [Indexed: 06/09/2023]
Abstract
The ultrasonication-mediated cell disruption of recombinant E. coli was modeled using three machine learning techniques namely Multiple linear regression (MLR), Multi-layer perceptron (MLP) and Sequential minimal optimization (SMO). The four attributes were cellmass concentration (g/L), acoustic power (A), duty cycle (%) and treatment time of sonication (min). For the three responses (nitrilase, total protein release and cell disruption) MLP model was found to be at par with RSM model in terms of generalization as well as prediction capability. Nitrilase release was significantly influenced by the cellmass concentration so was in case of total protein release. Fraction of cells disrupted was heavily influenced by acoustic power and sonication time. Almost 32 U/mL nitrilase could be released for 300 g/L cellmass concentration when sonicated at 225 W for 1 min with 20% duty cycle.
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Affiliation(s)
- Kiran D Bhilare
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, 160062 Punjab, India
| | - Mahesh D Patil
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, 160062 Punjab, India
| | - Sujit Tangadpalliwar
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, 160062 Punjab, India
| | - Ashok Shinde
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, 160062 Punjab, India
| | - Prabha Garg
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, 160062 Punjab, India.
| | - Uttam Chand Banerjee
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar, 160062 Punjab, India.
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Cell Separation and Disruption, Product Recovery, and Purification. ESSENTIALS IN FERMENTATION TECHNOLOGY 2019. [DOI: 10.1007/978-3-030-16230-6_8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Kim Y, Kim S. An electro-conductive plane heating element for rapid thermal lysis of bacterial cells. J Microbiol Methods 2018; 153:99-103. [DOI: 10.1016/j.mimet.2018.09.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 09/19/2018] [Accepted: 09/19/2018] [Indexed: 10/28/2022]
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Investigation of the cell disruption methods for maximizing the extraction of arginase from mutant Bacillus licheniformis (M09) using statistical approach. KOREAN J CHEM ENG 2018. [DOI: 10.1007/s11814-018-0107-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Patil MD, Shinde AS, Dev MJ, Patel G, Bhilare KD, Banerjee UC. Combined effect of attrition and ultrasound on the disruption ofPseudomonas putidafor the efficient release of arginine deiminase. Biotechnol Prog 2018; 34:1185-1194. [DOI: 10.1002/btpr.2664] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 05/05/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Mahesh D. Patil
- Department of Pharmaceutical Technology (Biotechnology)National Institute of Pharmaceutical Education and Research Punjab 160062 India
| | - Ashok S. Shinde
- Department of Pharmaceutical Technology (Biotechnology)National Institute of Pharmaceutical Education and Research Punjab 160062 India
| | - Manoj J. Dev
- Department of Pharmaceutical Technology (Biotechnology)National Institute of Pharmaceutical Education and Research Punjab 160062 India
| | - Gopal Patel
- Department of Pharmaceutical Technology (Biotechnology)National Institute of Pharmaceutical Education and Research Punjab 160062 India
| | - Kiran D. Bhilare
- Department of Pharmaceutical Technology (Biotechnology)National Institute of Pharmaceutical Education and Research Punjab 160062 India
| | - Uttam Chand Banerjee
- Department of Pharmaceutical Technology (Biotechnology)National Institute of Pharmaceutical Education and Research Punjab 160062 India
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Walther C, Kellner M, Berkemeyer M, Brocard C, Dürauer A. A microscale bacterial cell disruption technique as first step for automated and miniaturized process development. Process Biochem 2017. [DOI: 10.1016/j.procbio.2017.05.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Patil MD, Dev MJ, Tangadpalliwar S, Patel G, Garg P, Chisti Y, Banerjee UC. Ultrasonic disruption of Pseudomonas putida for the release of arginine deiminase: Kinetics and predictive models. BIORESOURCE TECHNOLOGY 2017; 233:74-83. [PMID: 28260664 DOI: 10.1016/j.biortech.2017.02.074] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 02/16/2017] [Accepted: 02/17/2017] [Indexed: 06/06/2023]
Abstract
The responses of the ultrasound-mediated disruption of Pseudomonas putida KT2440 were modelled as the function of biomass concentration in the cell suspension; the treatment time of sonication; the duty cycle and the acoustic power of the sonicator. For the experimental data, the response surface (RSM), the artificial neural network (ANN) and the support vector machine (SVM) models were compared for their ability to predict the performance parameters. The satisfactory prediction of the unseen data of the responses implied the proficient generalization capabilities of ANN. The extent of the cell disruption was mainly dependent on the acoustic power and the biomass concentration. The cellmass concentration in the slurry most strongly influenced the ADI and total protein release. Nearly 28U/mL ADI was released when a biomass concentration of 300g/L was sonicated for 6min with an acoustic power of 187.5W at 40% duty cycle. Cell disruption obeyed first-order kinetics.
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Affiliation(s)
- Mahesh D Patil
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar 160062, Punjab, India.
| | - Manoj J Dev
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar 160062, Punjab, India.
| | - Sujit Tangadpalliwar
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar 160062, Punjab, India.
| | - Gopal Patel
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar 160062, Punjab, India.
| | - Prabha Garg
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar 160062, Punjab, India.
| | - Yusuf Chisti
- School of Engineering, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
| | - Uttam Chand Banerjee
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar 160062, Punjab, India.
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Ochsenreither K, Glück C, Stressler T, Fischer L, Syldatk C. Production Strategies and Applications of Microbial Single Cell Oils. Front Microbiol 2016; 7:1539. [PMID: 27761130 PMCID: PMC5050229 DOI: 10.3389/fmicb.2016.01539] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 09/14/2016] [Indexed: 11/16/2022] Open
Abstract
Polyunsaturated fatty acids (PUFAs) of the ω-3 and ω-6 class (e.g., α-linolenic acid, linoleic acid) are essential for maintaining biofunctions in mammalians like humans. Due to the fact that humans cannot synthesize these essential fatty acids, they must be taken up from different food sources. Classical sources for these fatty acids are porcine liver and fish oil. However, microbial lipids or single cell oils, produced by oleaginous microorganisms such as algae, fungi and bacteria, are a promising source as well. These single cell oils can be used for many valuable chemicals with applications not only for nutrition but also for fuels and are therefore an ideal basis for a bio-based economy. A crucial point for the establishment of microbial lipids utilization is the cost-effective production and purification of fuels or products of higher value. The fermentative production can be realized by submerged (SmF) or solid state fermentation (SSF). The yield and the composition of the obtained microbial lipids depend on the type of fermentation and the particular conditions (e.g., medium, pH-value, temperature, aeration, nitrogen source). From an economical point of view, waste or by-product streams can be used as cheap and renewable carbon and nitrogen sources. In general, downstream processing costs are one of the major obstacles to be solved for full economic efficiency of microbial lipids. For the extraction of lipids from microbial biomass cell disruption is most important, because efficiency of cell disruption directly influences subsequent downstream operations and overall extraction efficiencies. A multitude of cell disruption and lipid extraction methods are available, conventional as well as newly emerging methods, which will be described and discussed in terms of large scale applicability, their potential in a modern biorefinery and their influence on product quality. Furthermore, an overview is given about applications of microbial lipids or derived fatty acids with emphasis on food applications.
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Affiliation(s)
- Katrin Ochsenreither
- Technical Biology, Institute of Process Engineering in Life Sciences, Karlsruhe Institute of TechnologyKarlsruhe, Germany
| | - Claudia Glück
- Biotechnology and Enzyme Science, Institute of Food Science and Biotechnology, University of HohenheimStuttgart, Germany
| | - Timo Stressler
- Biotechnology and Enzyme Science, Institute of Food Science and Biotechnology, University of HohenheimStuttgart, Germany
| | - Lutz Fischer
- Biotechnology and Enzyme Science, Institute of Food Science and Biotechnology, University of HohenheimStuttgart, Germany
| | - Christoph Syldatk
- Technical Biology, Institute of Process Engineering in Life Sciences, Karlsruhe Institute of TechnologyKarlsruhe, Germany
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Bystryak S, Santockyte R, Peshkovsky AS. Cell disruption of S. cerevisiae by scalable high-intensity ultrasound. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2015.03.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nallapan Maniyam M, Sjahrir F, Latif Ibrahim A, Cass AEG. Enzymatic cyanide degradation by cell-free extract of Rhodococcus UKMP-5M. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2015; 50:357-364. [PMID: 25723061 DOI: 10.1080/10934529.2015.987524] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The cell-free extract of locally isolated Rhodococcus UKMP-5M strain was used as an alternative to develop greener and cost effective cyanide removal technology. The present study aims to assess the viability of the cell-free extract to detoxify high concentrations of cyanide which is measured through the monitoring of protein concentration and specific cyanide-degrading activity. When cyanide-grown cells were subjected to grinding in liquid nitrogen which is relatively an inexpressive and fast cell disruption method, highest cyanide-degrading activity of 0.63 mM min(-1) mg(-1) protein was obtained in comparison to enzymatic lysis and agitation with fine glass beads. The cell-free extracts managed to degrade 80% of 20 mM KCN within 80 min and the rate of cyanide consumption increased linearly as the concentration of protein was raised. In both cases, the addition of co-factor was not required which proved to be advantageous economically. The successful formation of ammonia and formate as endproducts indicated that the degradation of cyanide by Rhodococcus UKMP-5M proceeded via the activity of cyanidase and the resulting non-toxic products are safe for disposal into the environment. Further verification with SDS-PAGE revealed that the molecular weight of the active enzyme was estimated to be 38 kDa, which is consistent with previously reported cyanidases. Thus, the utilization of cell-free extracts as an alternative to live microbial in cyanide degradation offers numerous advantageous such as the potential to tolerate and degrade higher concentration of cyanide and total reduction in the overall cost of operation since the requirement for nutrient support is irrelevant.
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Induction of humoral and cell-mediated immune responses by hepatitis B virus epitope displayed on the virus-like particles of prawn nodavirus. Appl Environ Microbiol 2014; 81:882-9. [PMID: 25416760 DOI: 10.1128/aem.03695-14] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Hepatitis B virus (HBV) is a deadly pathogen that has killed countless people worldwide. Saccharomyces cerevisiae-derived HBV vaccines based upon hepatitis B surface antigen (HBsAg) is highly effective. However, the emergence of vaccine escape mutants due to mutations on the HBsAg and polymerase genes has produced a continuous need for the development of new HBV vaccines. In this study, the "a" determinant within HBsAg was displayed on the recombinant capsid protein of Macrobrachium rosenbergii nodavirus (MrNV), which can be purified easily in a single step through immobilized metal affinity chromatography (IMAC). The purified protein self-assembled into virus-like particles (VLPs) when observed under a transmission electron microscope (TEM). Immunization of BALB/c mice with this chimeric protein induced specific antibodies against the "a" determinant. In addition, it induced significantly more natural killer and cytotoxic T cells, as well as an increase in interferon gamma (IFN-γ) secretion, which are vital for virus clearance. Collectively, these findings demonstrated that the MrNV capsid protein is a potential carrier for the HBV "a" determinant, which can be further extended to display other foreign epitopes. This paper is the first to report the application of MrNV VLPs as a novel platform to display foreign epitopes.
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Noor SSM, Tey BT, Tan WS, Ling TC, Ramanan RN, Ooi CW. PURIFICATION OF RECOMBINANT GREEN FLUORESCENT PROTEIN FROM ESCHERICHIA COLI USING HYDROPHOBIC INTERACTION CHROMATOGRAPHY. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2013.825847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Siti Sarah Mohd. Noor
- a Institute of Bioscience , Universiti Putra Malaysia , Selangor Darul Ehsan , Malaysia
| | - Beng Ti Tey
- b Chemical Engineering Discipline, School of Engineering , Monash University Malaysia, Sunway Campus , Selangor , Malaysia
| | - Wen Siang Tan
- a Institute of Bioscience , Universiti Putra Malaysia , Selangor Darul Ehsan , Malaysia
- c Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences , Universiti Putra Malaysia , Selangor Darul Ehsan , Malaysia
| | - Tau Chuan Ling
- d Faculty of Science, Institute of Biological Sciences , University of Malaya , Kuala Lumpur , Malaysia
| | | | - Chien Wei Ooi
- b Chemical Engineering Discipline, School of Engineering , Monash University Malaysia, Sunway Campus , Selangor , Malaysia
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Lee Ying Yeng A, Kadir MSA, Ghazali HM, Raja Abd Rahman RNZ, Saari N. A comparative study of extraction techniques for maximum recovery of glutamate decarboxylase (GAD) from Aspergillus oryzae NSK. BMC Res Notes 2013; 6:526. [PMID: 24321181 PMCID: PMC4029468 DOI: 10.1186/1756-0500-6-526] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 12/06/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND γ-Amino butyric acid (GABA) is a major inhibitory neurotransmitter of the mammalian central nervous system that plays a vital role in regulating vital neurological functions. The enzyme responsible for producing GABA is glutamate decarboxylase (GAD), an intracellular enzyme that both food and pharmaceutical industries are currently using as the major catalyst in trial biotransformation process of GABA. We have successfully isolated a novel strain of Aspergillus oryzae NSK that possesses a relatively high GABA biosynthesizing capability compared to other reported GABA-producing fungal strains, indicating the presence of an active GAD. This finding has prompted us to explore an effective method to recover maximum amount of GAD for further studies on the GAD's biochemical and kinetic properties. The extraction techniques examined were enzymatic lysis, chemical permeabilization, and mechanical disruption. Under the GAD activity assay used, one unit of GAD activity is expressed as 1 μmol of GABA produced per min per ml enzyme extract (U/ml) while the specific activity was expressed as U/mg protein. RESULTS Mechanical disruption by sonication, which yielded 1.99 U/mg of GAD, was by far the most effective cell disintegration method compared with the other extraction procedures examined. In contrast, the second most effective method, freeze grinding followed by 10% v/v toluene permeabilization at 25°C for 120 min, yielded only 1.17 U/mg of GAD, which is 170% lower than the sonication method. Optimized enzymatic lysis with 3 mg/ml Yatalase® at 60°C for 30 min was the least effective. It yielded only 0.70 U/mg of GAD. Extraction using sonication was further optimized using a one-variable-at-a-time approach (OVAT). Results obtained show that the yield of GAD increased 176% from 1.99 U/mg to 3.50 U/mg. CONCLUSION Of the techniques used to extract GAD from A. oryzae NSK, sonication was found to be the best. Under optimized conditions, about 176% of GAD was recovered compared to recovery under non optimized conditions. The high production level of GAD in this strain offers an opportunity to conduct further studies on GABA production at a larger scale.
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Affiliation(s)
- Audrey Lee Ying Yeng
- Faculty of Food Science and Technology, University Putra Malaysia, 43400, Serdang, Selangor, D.E., Malaysia
| | - Mohd Safuan Ab Kadir
- Faculty of Food Science and Technology, University Putra Malaysia, 43400, Serdang, Selangor, D.E., Malaysia
| | - Hasanah Mohd Ghazali
- Faculty of Food Science and Technology, University Putra Malaysia, 43400, Serdang, Selangor, D.E., Malaysia
| | | | - Nazamid Saari
- Faculty of Food Science and Technology, University Putra Malaysia, 43400, Serdang, Selangor, D.E., Malaysia
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Ham SM, Yoo IS, Park SJ, Kim JH. Extraction of Intracellular Lipids from Recombinant E. coli for Improving Long-chain Fatty Acid Production. KOREAN CHEMICAL ENGINEERING RESEARCH 2013. [DOI: 10.9713/kcer.2013.51.4.482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Inducible cell lysis systems in microbial production of bio-based chemicals. Appl Microbiol Biotechnol 2013; 97:7121-9. [DOI: 10.1007/s00253-013-5100-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 07/04/2013] [Accepted: 07/05/2013] [Indexed: 02/02/2023]
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Bhattacharyya S, Chakraborty S, Datta S, Drioli E, Bhattacharjee C. Production of total reducing sugar (TRS) from acid hydrolysed potato peels by sonication and its optimization. ENVIRONMENTAL TECHNOLOGY 2013; 34:1077-1084. [PMID: 24191439 DOI: 10.1080/09593330.2012.733965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Potato peel is a waste biomass which can be a source of raw material for biofuel production. This biomass contains a sufficient amount of total reducing sugar (TRS), which can be extracted and further treated with microbial pathways to produce bioethanol. The extraction of TRS from potato peels by hydrolysis in dilute sulphuric acid was investigated at different acid concentrations (0.50%, 0.75% and 1% w/v) and sonication was carried out to improve the extent of sugar extraction after hydrolysis. Response surface methodology based on central composite design was used to verify the experimental data and later applied for the optimization of the main important reaction variables including amplitude (60%, 80% and 100%), cycle (0.6, 0.8 and 1.0) and treatment time (5, 10 and 15 min) for the responses of TRS extraction by acid hydrolysis and later compared with the experimental data.
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Ariff RM, Fitrianto A, Abd Manap MY, Ideris A, Kassim A, Suhairin A, Hussin ASM. Cultivation Conditions for Phytase Production from Recombinant Escherichia coli DH5α. Microbiol Insights 2013; 6:17-28. [PMID: 24826071 PMCID: PMC3987752 DOI: 10.4137/mbi.s10402] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Response surface methodology (RSM) was used to optimize the cultivation conditions for the production of phytase by recombinant Escherichia coli DH5α. The optimum predicted cultivation conditions for phytase production were at 3 hours seed age, a 2.5% inoculum level, an L-arabinose concentration of 0.20%, a cell concentration of 0.3 (as measured at 600 nm) and 17 hours post-induction time with a predicted phytase activity of 4194.45 U/mL. The model was validated and the results showed no significant difference between the experimental and the predicted phytase activity (P = 0.305). Under optimum cultivation conditions, the phytase activity of the recombinant E. coli DH5α was 364 times higher compared to the phytase activity of the wild-type producer, Enterobacter sakazakii ASUIA279. Hence, optimization of the cultivation conditions using RSM positively increased phytase production from recombinant E. coli DH5α.
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Affiliation(s)
- Rafidah Mohd Ariff
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Anwar Fitrianto
- Department of Mathematics, Faculty of Science, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Mohd Yazid Abd Manap
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Aini Ideris
- Department of Science Clinical Study, Faculty of Veterinary Science, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Azhar Kassim
- Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Afinah Suhairin
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Anis Shobirin Meor Hussin
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Liu D, Zeng XA, Sun DW, Han Z. Disruption and protein release by ultrasonication of yeast cells. INNOV FOOD SCI EMERG 2013. [DOI: 10.1016/j.ifset.2013.02.006] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yap CF, Tan WS, Sieo CC, Tey BT. Purification of long helical capsid of newcastle disease virus fromEscherichia coliusing anion exchange chromatography. Biotechnol Prog 2013; 29:564-7. [DOI: 10.1002/btpr.1697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 01/14/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Chee Fai Yap
- Institute of Bioscience; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
| | - Wen Siang Tan
- Institute of Bioscience; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
- Dept. of Microbiology, Faculty of Biotechnology and Biomolecular Sciences; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
| | - Chin Chin Sieo
- Institute of Bioscience; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
- Dept. of Microbiology, Faculty of Biotechnology and Biomolecular Sciences; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
| | - Beng Ti Tey
- Chemical Engineering Discipline, School of Engineering; Monash University, Sunway Campus, Jalan Lagoon Selatan; 46150 Bandar Sunway Selangor Malaysia
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Yap CF, Tan WS, Sieo CC, Tey BT. Enhancement of the yield of long helical structure of recombinant nucleocapsid protein of Newcastle disease virus. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Effect of Different Variables on the Efficiency of the Baker's Yeast Cell Disruption Process to Obtain Alcohol Dehydrogenase Activity. Appl Biochem Biotechnol 2013; 169:1039-55. [DOI: 10.1007/s12010-012-0056-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Accepted: 12/26/2012] [Indexed: 11/26/2022]
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Gerde JA, Montalbo-Lomboy M, Yao L, Grewell D, Wang T. Evaluation of microalgae cell disruption by ultrasonic treatment. BIORESOURCE TECHNOLOGY 2012; 125:175-181. [PMID: 23026331 DOI: 10.1016/j.biortech.2012.08.110] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 08/23/2012] [Accepted: 08/25/2012] [Indexed: 06/01/2023]
Abstract
Microalgae are a promising feedstock for biofuels because of their capability to produce lipids. Cell disruption is necessary to maximize lipid extraction. Sonication conditions were evaluated for breaking heterotrophic (Schizochytrium limacinum) and autotrophic (Chlamydomonas reinhardtii) microalgae cells. Cell disruption was estimated by Nile red-lipids fluorescence quantification in S. limacinum and by the release of intracellular chlorophyll and carotenoids in green microalga C. reinhardtii. In both species, approximately 800 J/10 mL was the energy input necessary to maximize cell disruption, regardless of the cell concentrations studied. Increasing sonication time produced increasing amount of free radicals, quantified by the formation of hydroxyterephthalate. Sonication energy beyond the level needed for cell disruption induced oxidation of arachidonic acid, a polyunsaturated fatty acid typically found in marine lipids. Careful control of sonication conditions is necessary to maximize oil extraction at the lowest operational cost and to prevent oil from free radical-induced degradation.
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Affiliation(s)
- Jose A Gerde
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA 50011-1061, USA
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31
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Tam YJ, Allaudin ZN, Lila MAM, Bahaman AR, Tan JS, Rezaei MA. Enhanced cell disruption strategy in the release of recombinant hepatitis B surface antigen from Pichia pastoris using response surface methodology. BMC Biotechnol 2012; 12:70. [PMID: 23039947 PMCID: PMC3487952 DOI: 10.1186/1472-6750-12-70] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 10/02/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cell disruption strategies by high pressure homogenizer for the release of recombinant Hepatitis B surface antigen (HBsAg) from Pichia pastoris expression cells were optimized using response surface methodology (RSM) based on the central composite design (CCD). The factors studied include number of passes, biomass concentration and pulse pressure. Polynomial models were used to correlate the above mentioned factors to project the cell disruption capability and specific protein release of HBsAg from P. pastoris cells. RESULTS The proposed cell disruption strategy consisted of a number of passes set at 20 times, biomass concentration of 7.70 g/L of dry cell weight (DCW) and pulse pressure at 1,029 bar. The optimized cell disruption strategy was shown to increase cell disruption efficiency by 2-fold and 4-fold for specific protein release of HBsAg when compared to glass bead method yielding 75.68% cell disruption rate (CDR) and HBsAg concentration of 29.20 mg/L respectively. CONCLUSIONS The model equation generated from RSM on cell disruption of P. pastoris was found adequate to determine the significant factors and its interactions among the process variables and the optimum conditions in releasing HBsAg when validated against a glass bead cell disruption method. The findings from the study can open up a promising strategy for better recovery of HBsAg recombinant protein during downstream processing.
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Affiliation(s)
- Yew Joon Tam
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
- Laboratory of Immunotherapeutic and Vaccine Technology (LIVES), Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Zeenathul Nazariah Allaudin
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
- Laboratory of Immunotherapeutic and Vaccine Technology (LIVES), Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Mohd Azmi Mohd Lila
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
| | - Abdul Rani Bahaman
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
| | - Joo Shun Tan
- Laboratory of Immunotherapeutic and Vaccine Technology (LIVES), Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Morvarid Akhavan Rezaei
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia
- Laboratory of Immunotherapeutic and Vaccine Technology (LIVES), Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Purification of recombinant hepatitis B core antigen from unclarified Escherichia coli feedstock using phage-immobilized expanded bed adsorption chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 903:60-7. [DOI: 10.1016/j.jchromb.2012.06.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 06/01/2012] [Accepted: 06/27/2012] [Indexed: 11/18/2022]
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33
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Li Q, Aucamp JP, Tang A, Chatel A, Hoare M. Use of focused acoustics for cell disruption to provide ultra scale-down insights of microbial homogenization and its bioprocess impact-recovery of antibody fragments from rec E. coli. Biotechnol Bioeng 2012; 109:2059-69. [DOI: 10.1002/bit.24484] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Revised: 01/27/2012] [Accepted: 02/16/2012] [Indexed: 11/11/2022]
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Kapturowska AU, Stolarzewicz IA, Krzyczkowska J, Białecka-Florjańczyk E. Studies on the lipolytic activity of sonicated enzymes from Yarrowia lipolytica. ULTRASONICS SONOCHEMISTRY 2012; 19:186-191. [PMID: 21778102 DOI: 10.1016/j.ultsonch.2011.06.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Revised: 06/23/2011] [Accepted: 06/24/2011] [Indexed: 05/31/2023]
Abstract
The aim of this study was to evaluate the efficiency of sonication in releasing protein from a widespread lipase-producing yeast, Yarrowia lipolytica KKP 379, and to examine the impact of ultrasound waves generated in a horn-type sonicator on the lipolytic activity of Y. lipolytica in the hydrolysis of p-nitrophenyl laurate. In this paper, we focused on a few parameters of ultrasound cell disruption, such as the time of sonication, acoustic power, storage time of the frozen yeast biomass used in sonication and the solvent used to suspend the yeast cells which were considered as the most important part in the process of obtaining a biocatalyst from Y. lipolytica for organic synthesis. The most effective additive in protein release proved to be 2% Tween 80; other ideal parameters of the process were ultrasonic power at 150 W for 15 min and 9 weeks of frozen biomass storage time. The sonication parameters, which were the best for protein release, did not seem to be the most effective for obtaining high lipolytic activity due to denaturation as an effect of cavitation.
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Affiliation(s)
- Agata Urszula Kapturowska
- Department of Chemistry, Faculty of Food Sciences, Warsaw University of Life Sciences, 02-787, Poland.
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35
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Choonia HS, Lele S. β-Galactosidase release kinetics during ultrasonic disruption of Lactobacillus acidophilus isolated from fermented Eleusine coracana. FOOD AND BIOPRODUCTS PROCESSING 2011. [DOI: 10.1016/j.fbp.2010.08.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bronshtein T, Toledano N, Danino D, Pollack S, Machluf M. Cell derived liposomes expressing CCR5 as a new targeted drug-delivery system for HIV infected cells. J Control Release 2011; 151:139-48. [DOI: 10.1016/j.jconrel.2011.02.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Revised: 01/17/2011] [Accepted: 02/22/2011] [Indexed: 10/18/2022]
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Choonia HS, Lele SS. RELEASE OF β-GALACTOSIDASE FROM INDIGENOUSLACTOBACILLUS ACIDOPHILUSBY ULTRASONICATION: PROCESS OPTIMIZATION. CHEM ENG COMMUN 2011. [DOI: 10.1080/00986445.2011.532738] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Comparisons of protein extraction procedures and quantification methods for the proteomic analysis of Gram-positive Paenibacillus sp. strain D9. World J Microbiol Biotechnol 2010. [DOI: 10.1007/s11274-010-0621-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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39
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Listwan P, Pédelacq JD, Lockard M, Bell C, Terwilliger TC, Waldo GS. The optimization of in vitro high-throughput chemical lysis of Escherichia coli. Application to ACP domain of the polyketide synthase ppsC from Mycobacterium tuberculosis. ACTA ACUST UNITED AC 2010; 11:41-9. [PMID: 20069378 PMCID: PMC2855807 DOI: 10.1007/s10969-009-9077-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Accepted: 12/30/2009] [Indexed: 11/26/2022]
Abstract
Protein production in Escherichia coli involves high-level expression in a culture, followed by harvesting of the cells and finally their disruption, or lysis, to release the expressed proteins. We compare three high-throughput chemical lysis methods to sonication, using a robotic platform and methodologies developed in our laboratory [1]. Under the same expression conditions, all lysis methods varied in the degree of released soluble proteins. With a set of 96 test proteins, we used our split GFP to quantify the soluble and insoluble protein fractions after lysis. Both the amount of soluble protein and the percentage recovered in the soluble fraction using SoluLyse were well correlated with sonication. Two other methods, Bugbuster and lysozyme, did not correlate well with sonication. Considering the effects of lysis methods on protein solubility is especially important when accurate protein solubility measurements are needed, for example, when testing adjuvants, growth media, temperature, or when establishing the effects of truncation or sequence variation on protein stability.
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Affiliation(s)
- Pawel Listwan
- Bioscience Division, MS-M888, Los Alamos National Laboratory, Bikini Atoll Rd, SM30, Los Alamos, NM 87545, USA.
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Chong FC, Tan WS, Biak DR, Ling TC, Tey BT. A preparative hydrophobic interaction chromatography for purification of recombinant nucleocapsid protein of Nipah virus from clarified Escherichia coli homogenate. Sep Purif Technol 2010. [DOI: 10.1016/j.seppur.2009.11.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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41
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Chong FC, Tan WS, Biak DRA, Ling TC, Tey BT. Modulation of protease activity to enhance the recovery of recombinant nucleocapsid protein of Nipah virus. Process Biochem 2010. [DOI: 10.1016/j.procbio.2009.08.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Chong FC, Tan WS, Biak DRA, Ling TC, Tey BT. Purification of histidine-tagged nucleocapsid protein of Nipah virus using immobilized metal affinity chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:1561-7. [DOI: 10.1016/j.jchromb.2009.03.048] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2009] [Revised: 03/31/2009] [Accepted: 03/31/2009] [Indexed: 11/28/2022]
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Ramanan RN, Ling TC, Ariff AB. The performance of a glass bead shaking technique for the disruption of Escherichia coli cells. BIOTECHNOL BIOPROC E 2008. [DOI: 10.1007/s12257-008-0047-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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44
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Comparative evaluation of different cell disruption methods for the release of recombinant hepatitis B core antigen from Escherichia coli. BIOTECHNOL BIOPROC E 2008. [DOI: 10.1007/s12257-008-0020-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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Quantitation of green fluorescent protein using a gel-based imaging method. Anal Biochem 2008; 384:353-5. [PMID: 18952038 DOI: 10.1016/j.ab.2008.10.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2008] [Revised: 09/22/2008] [Accepted: 10/05/2008] [Indexed: 11/21/2022]
Abstract
Green fluorescent protein (GFP) is a versatile reporter protein and has been widely used in biological research. However, its quantitation requires expensive equipment such as a spectrofluorometer. In the current study, a gel documentation imaging system using a native polyacrylamide gel for the quantitation of GFP was developed. The assay was evaluated for its precision, linearity, reproducibility, and sensitivity in the presence of Escherichia coli cells and was compared with the spectrofluorometric method. Using this newly established, gel-based imaging technique; the amount of GFP can be quantified accurately.
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Ho CW, Tan WS, Kamarudin S, Ling TC, Tey BT. The release of hepatitis B core antigen from Escherichia coli by batch mode bead milling. Process Biochem 2008. [DOI: 10.1016/j.procbio.2007.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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47
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Ng MY, Tan WS, Abdullah N, Ling TC, Tey BT. Direct purification of recombinant hepatitis B core antigen from two different pre-conditioned unclarified Escherichia coli feedstocks via expanded bed adsorption chromatography. J Chromatogr A 2007; 1172:47-56. [DOI: 10.1016/j.chroma.2007.09.065] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2007] [Revised: 09/22/2007] [Accepted: 09/25/2007] [Indexed: 10/22/2022]
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48
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Ng MYT, Tan WS, Abdullah N, Ling TC, Tey BT. Heat treatment of unclarified Escherichia coli homogenate improved the recovery efficiency of recombinant hepatitis B core antigen. J Virol Methods 2006; 137:134-9. [PMID: 16860402 DOI: 10.1016/j.jviromet.2006.06.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2006] [Revised: 06/09/2006] [Accepted: 06/13/2006] [Indexed: 11/15/2022]
Abstract
Heat precipitation procedure has been regularly incorporated as a selective purification step in various thermostable proteins expressed in different hosts. This method is efficient in precipitation of most of the host proteins and also deactivates various host proteases that can be harmful to the desired gene products. In this study, introduction of heat treatment procedure in the purification of hepatitis B core antigen (HBcAg) produced in Escherichia coli has been investigated. Thermal treatment of the cell homogenate at 60 degrees C for 30 min prior to subsequent clarification steps has resulted in 1.4 times and 18% higher in purity and recovery yield, respectively, compared to the non-heat-treated cell homogenate. In direct capture of HBcAg by using anion-exchangers from unclarified feedstock, pre-conditioning the feedstock by heat treatment at 60 degrees C for 45 min has increased the recovery yield of HBcAg by 2.9-fold and 42% in purity compared to that treated for 10 min. Enzyme-linked immunosorbent assay (ELISA) analysis showed that the antigenicity of the core particles was not affected by the heat treatment process.
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Affiliation(s)
- Michelle Y T Ng
- Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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