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Zhou L, Höfte M, Hennessy RC. Does regulation hold the key to optimizing lipopeptide production in Pseudomonas for biotechnology? Front Bioeng Biotechnol 2024; 12:1363183. [PMID: 38476965 PMCID: PMC10928948 DOI: 10.3389/fbioe.2024.1363183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 02/12/2024] [Indexed: 03/14/2024] Open
Abstract
Lipopeptides (LPs) produced by Pseudomonas spp. are specialized metabolites with diverse structures and functions, including powerful biosurfactant and antimicrobial properties. Despite their enormous potential in environmental and industrial biotechnology, low yield and high production cost limit their practical use. While genome mining and functional genomics have identified a multitude of LP biosynthetic gene clusters, the regulatory mechanisms underlying their biosynthesis remain poorly understood. We propose that regulation holds the key to unlocking LP production in Pseudomonas for biotechnology. In this review, we summarize the structure and function of Pseudomonas-derived LPs and describe the molecular basis for their biosynthesis and regulation. We examine the global and specific regulator-driven mechanisms controlling LP synthesis including the influence of environmental signals. Understanding LP regulation is key to modulating production of these valuable compounds, both quantitatively and qualitatively, for industrial and environmental biotechnology.
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Affiliation(s)
- Lu Zhou
- Laboratory of Phytopathology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Monica Höfte
- Laboratory of Phytopathology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Rosanna C. Hennessy
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
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2
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de Paula Vieira de Castro R, Alves Lima Rocha V, Cezar Fernandes da Silva ME, Volcan Almeida R, Guimarães Freire DM. New insight into the role of oxygen supply for surfactin production in bench-scale bioreactors using induced surface aeration. Bioprocess Biosyst Eng 2022; 45:2031-2041. [DOI: 10.1007/s00449-022-02807-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 10/24/2022] [Indexed: 11/09/2022]
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3
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Oraby أميرة عرابي A, Weickardt I, Zibek S. Foam Fractionation Methods in Aerobic Fermentation Processes. Biotechnol Bioeng 2022; 119:1697-1711. [PMID: 35394649 DOI: 10.1002/bit.28102] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/01/2022] [Accepted: 03/27/2022] [Indexed: 11/07/2022]
Abstract
Inherently occurring foam formation during aerobic fermentations of surface-active compounds can be exploited by fractionating the foam. This also serves as the first downstream processing step for product concentration and is used for in situ product recovery. Compared to other foam prevention methods, it does not interfere with fermentation parameters or alter broth composition. Nevertheless, parameters affecting the foaming behaviour are complex. Therefore, the specific foam fractionation designs need to be engineered for each fermentation individually. This still hinders a widespread industrial application. However, few available commercial approaches demonstrate the applicability of foam columns on an industrial scale. This systematic literature review highlights relevant design aspects and process demands that need to be considered for an application to fermentations and proposes a classification of foam fractionation designs and methods. It further analyses substance-specific characteristics associated with foam fractionation. Finally, solutions for current challenges are presented, and future perspectives are discussed. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Amira Oraby أميرة عرابي
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstr. 12, 70569, Stuttgart, Germany.,Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Nobelstr. 12, 70569, Stuttgart, Germany
| | - Isabell Weickardt
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstr. 12, 70569, Stuttgart, Germany
| | - Susanne Zibek
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstr. 12, 70569, Stuttgart, Germany.,Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Nobelstr. 12, 70569, Stuttgart, Germany
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Gaur VK, Sharma P, Sirohi R, Varjani S, Taherzadeh MJ, Chang JS, Yong Ng H, Wong JWC, Kim SH. Production of biosurfactants from agro-industrial waste and waste cooking oil in a circular bioeconomy: An overview. BIORESOURCE TECHNOLOGY 2022; 343:126059. [PMID: 34606921 DOI: 10.1016/j.biortech.2021.126059] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 06/13/2023]
Abstract
Waste generation is becoming a global concern owing to its adverse effects on environment and human health. The utilization of waste as a feedstock for production of value-added products has opened new avenues contributing to environmental sustainability. Microorganisms have been employed for production of biosurfactants as secondary metabolites by utilizing waste streams. Utilization of waste as a substrate significantly reduces the cost of overall process. Biosurfactant(s) derived from these processes can be utilized in environmental and different industrial sectors. This review focuses on global market of biosurfactants followed by discussion on production of biosurfactants from waste streams such as agro-industrial waste and waste cooking oil. The need for waste stream derived circular bioeconomy and scale up of biosurfactant production have been narrated with applications of biosurfactants in environment and industrial sectors. Road blocks and future directions for research have also been discussed.
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Affiliation(s)
- Vivek K Gaur
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, India
| | - Poonam Sharma
- Department of Bioengineering, Integral University, Lucknow, India
| | - Ranjna Sirohi
- Department of Postharvest Process and Food Engineering, GB Pant University of Agriculture and Technology, Pantnagar, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India.
| | | | - Jo-Shu Chang
- Department of Chemical Engineering and Materials Science, College of Engineering, Tunghai University, Taichung, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - How Yong Ng
- National University of Singapore, Environmental Research Institute, 5A Engineering Drive 1, Singapore 117411, Singapore
| | - Jonathan W C Wong
- Institute of Bioresource and Agriculture, Hong Kong Baptist University, Hong Kong, PR China
| | - Sang-Hyoun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
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Stein J, Schlosser N, Bardl B, Peschel G, Meyer F, Kloss F, Rosenbaum MA, Regestein L. Scalable downstream method for the cyclic lipopetide jagaricin. Eng Life Sci 2021; 22:811-817. [PMID: 36514532 PMCID: PMC9731587 DOI: 10.1002/elsc.202100079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 10/15/2021] [Indexed: 12/16/2022] Open
Abstract
Cyclic lipopeptides are substances with a high potential to act as antimicrobial agents. Jagaricin, produced by Janthinobacterium agaricidamnosum DSM 9628 and discovered in 2012, is a new member of this class with promising antifungal properties. However, further experiments to investigate future applications and/or conduct chemical derivatization to change properties and toxicity are impossible due to the limited access to jagaricin. Besides a high jagaricin concentration at the end of the fermentation process, a suitable downstream process is essential to generate appropriate amounts with the desired purity. In contrast to other amphiphilic molecules, jagaricin cannot be separated by foam fractionation since it is mainly attached to the surface of the microbial biomass. This technical report presents an overall process chain consisting of 11 individual steps to generate jagaricin in gram scale with a purity of over 95%.
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Affiliation(s)
- Jakob Stein
- Bio Pilot PlantLeibniz Institute for Natural Product Research and Infection BiologyHans‐Knöll‐InstituteJenaGermany
| | - Nicolas Schlosser
- Bio Pilot PlantLeibniz Institute for Natural Product Research and Infection BiologyHans‐Knöll‐InstituteJenaGermany,Faculty of Biological SciencesFriedrich Schiller University JenaJenaGermany
| | - Bettina Bardl
- Bio Pilot PlantLeibniz Institute for Natural Product Research and Infection BiologyHans‐Knöll‐InstituteJenaGermany
| | - Gundela Peschel
- Bio Pilot PlantLeibniz Institute for Natural Product Research and Infection BiologyHans‐Knöll‐InstituteJenaGermany
| | - Florian Meyer
- Transfer Group Anti‐InfectivesLeibniz Institute for Natural Product Research and Infection BiologyHans‐Knöll‐InstituteJenaGermany
| | - Florian Kloss
- Transfer Group Anti‐InfectivesLeibniz Institute for Natural Product Research and Infection BiologyHans‐Knöll‐InstituteJenaGermany
| | - Miriam A. Rosenbaum
- Bio Pilot PlantLeibniz Institute for Natural Product Research and Infection BiologyHans‐Knöll‐InstituteJenaGermany,Faculty of Biological SciencesFriedrich Schiller University JenaJenaGermany
| | - Lars Regestein
- Bio Pilot PlantLeibniz Institute for Natural Product Research and Infection BiologyHans‐Knöll‐InstituteJenaGermany
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Glycolipid Biosurfactant Production from Waste Cooking Oils by Yeast: Review of Substrates, Producers and Products. FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7030136] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Biosurfactants are a microbially synthesized alternative to synthetic surfactants, one of the most important bulk chemicals. Some yeast species are proven to be exceptional biosurfactant producers, while others are emerging producers. A set of factors affects the type, amount, and properties of the biosurfactant produced, as well as the environmental impact and costs of biosurfactant’s production. Exploring waste cooking oil as a substrate for biosurfactants’ production serves as an effective cost-cutting strategy, yet it has some limitations. This review explores the existing knowledge on utilizing waste cooking oil as a feedstock to produce glycolipid biosurfactants by yeast. The review focuses specifically on the differences created by using raw cooking oil or waste cooking oil as the substrate on the ability of various yeast species to synthesize sophorolipids, rhamnolipids, mannosylerythritol lipids, and other glycolipids and the substrate’s impact on the composition, properties, and limitations in the application of biosurfactants.
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Guez JS, Vassaux A, Larroche C, Jacques P, Coutte F. New Continuous Process for the Production of Lipopeptide Biosurfactants in Foam Overflowing Bioreactor. Front Bioeng Biotechnol 2021; 9:678469. [PMID: 34124025 PMCID: PMC8194703 DOI: 10.3389/fbioe.2021.678469] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 04/12/2021] [Indexed: 11/13/2022] Open
Abstract
In this work, an original culture process in bioreactor named overflowing continuous culture (O-CC) was developed to produce and recover continuously mycosubtilin, a lipopeptide antifungal biosurfactant of major interest. The lipopeptide production was first investigated in shake conical flasks in different culture media [ammonium citrate sucrose (ACS), Difco sporulation medium (DSM), and Landy], followed by a pH condition optimization using 3-(N-morpholino)propanesulfonic acid (MOPS) and 2-(N-morpholino)ethanesulfonic acid (MES) buffered media. A simple theoretical modeling of the biomass evolution combined with an experimental setup was then proposed for O-CC processed in stirred tank reactor at laboratory scale. Seven O-CC experiments were done in modified Landy medium at the optimized pH 6.5 by applying dilution rates comprised between 0.05 and 0.1 h-1. The O-CC allowed the continuous recovery of the mycosubtilin contained in the foam overflowing out of the reactor, achieving a remarkable in situ product removal superior to 99%. The biomass concentration in the overflowing foam was found to be twofold lower than the biomass concentration in the reactor, relating advantageously this process to a continuous one with biomass feedback. To evaluate its performances regarding the type of lipopeptide produced, the O-CC process was tested with strain BBG116, a mycosubtilin constitutive overproducing strain that also produces surfactin, and strain BBG125, its derivative strain obtained by deleting surfactin synthetase operon. At a dilution rate of 0.1 h-1, specific productivity of 1.18 mg of mycosubtilin⋅g-1(DW)⋅h-1 was reached. Compared with other previously described bioprocesses using almost similar culture conditions and strains, the O-CC one allowed an increase of the mycosubtilin production rate by 2.06-fold.
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Affiliation(s)
- Jean-Sébastien Guez
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, Clermont-Ferrand, France
| | - Antoine Vassaux
- Université de Lille, UMRt BioEcoAgro 1158-INRAE, équipe Métabolites Secondaires d'origine Microbienne, Institut Charles Viollette, Lille, France
| | - Christian Larroche
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, Clermont-Ferrand, France
| | - Philippe Jacques
- Université de Liège, UMRt BioEcoAgro 1158-INRAE, équipe Métabolites Secondaires d'origine Microbienne, TERRA Teaching and Research Centre, MiPI, Gembloux Agro-Bio Tech, Gembloux, Belgium.,Lipofabrik, Polytech-Lille, Cité Scientifique, Villeneuve d'Ascq, France
| | - François Coutte
- Université de Lille, UMRt BioEcoAgro 1158-INRAE, équipe Métabolites Secondaires d'origine Microbienne, Institut Charles Viollette, Lille, France.,Lipofabrik, Polytech-Lille, Cité Scientifique, Villeneuve d'Ascq, France
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Blesken CC, Strümpfler T, Tiso T, Blank LM. Uncoupling Foam Fractionation and Foam Adsorption for Enhanced Biosurfactant Synthesis and Recovery. Microorganisms 2020; 8:microorganisms8122029. [PMID: 33353027 DOI: 10.3390/microorganisms8122029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 11/16/2022] Open
Abstract
The production of biosurfactants is often hampered by excessive foaming in the bioreactor, impacting system scale-up and downstream processing. Foam fractionation was proposed to tackle this challenge by combining in situ product removal with a pre-purification step. In previous studies, foam fractionation was coupled to bioreactor operation, hence it was operated at suboptimal parameters. Here, we use an external fractionation column to decouple biosurfactant production from foam fractionation, enabling continuous surfactant separation, which is especially suited for system scale-up. As a subsequent product recovery step, continuous foam adsorption was integrated into the process. The configuration is evaluated for rhamnolipid (RL) or 3-(3-hydroxyalkanoyloxy)alkanoic acid (HAA, i.e., RL precursor) production by recombinant non-pathogenic Pseudomonas putida KT2440. Surfactant concentrations of 7.5 gRL/L and 2.0 gHAA/L were obtained in the fractionated foam. 4.7 g RLs and 2.8 g HAAs could be separated in the 2-stage recovery process within 36 h from a 2 L culture volume. With a culture volume scale-up to 9 L, 16 g RLs were adsorbed, and the space-time yield (STY) increased by 31% to 0.21 gRL/L·h. We demonstrate a well-performing process design for biosurfactant production and recovery as a contribution to a vital bioeconomy.
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Affiliation(s)
- Christian C Blesken
- iAMB-Institute of Applied Microbiology, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany
| | - Tessa Strümpfler
- iAMB-Institute of Applied Microbiology, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany
| | - Till Tiso
- iAMB-Institute of Applied Microbiology, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany
| | - Lars M Blank
- iAMB-Institute of Applied Microbiology, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany
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