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K'yal RB, Prather KLJ. α-Substituted 3-hydroxy acid production from glucose in Escherichia coli. Metab Eng 2024:S1096-7176(24)00125-3. [PMID: 39313110 DOI: 10.1016/j.ymben.2024.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 08/28/2024] [Accepted: 09/15/2024] [Indexed: 09/25/2024]
Abstract
Polyhydroxyalkanoates (PHAs) are renewably-derived, microbial polyesters composed of hydroxy acids (HAs). Demand for sustainable plastics alternatives, combined with the unfavorable thermal properties exhibited by some PHAs, motivates the discovery of novel PHA-based materials. Incorporation of α-substituted HAs yields thermostable PHAs; however, the reverse β-oxidation (rBOX) pathway, the canonical pathway for HA production, is unable to produce these monomers because it utilizes thiolases with narrow substrate specificity. Here, we present a thiolase-independent pathway to two α-substituted HAs, 3-hydroxyisobutyric acid (3HIB) and 3-hydroxy-2-methylbutyric acid (3H2MB). This pathway involves the conversion of glucose to various branched acyl-CoAs and ultimately to 3HIB or 3H2MB. As proof of concept, we engineered Escherichia coli for the specific production 3HIB and 3H2MB from glucose at titers as high as 66 ± 5 mg/L and 290 ± 40 mg/L, respectively. Optimizing this pathway for 3H2MB production via a novel byproduct recycle increased titer by 60%. This work illustrates the utility of novel pathway design HA production leading to PHAs with industrially relevant properties.
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Affiliation(s)
- R Bannister K'yal
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Kristala L J Prather
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
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2
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Mierzati M, Miyahara Y, Curial B, Nomura CT, Taguchi S, Abe H, Tsuge T. Tacticity Characterization of Biosynthesized Polyhydroxyalkanoates Containing ( S)- and ( R)-3-Hydroxy-2-Methylpropionate Units. Biomacromolecules 2024; 25:444-454. [PMID: 38135668 DOI: 10.1021/acs.biomac.3c01069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Abstract
Polyhydroxyalkanoates (PHAs), aliphatic polyesters synthesized by microorganisms, have gained considerable attention as biodegradable plastics. Recently, α-carbon-methylated PHAs have been shown to exhibit several interesting properties that differ from those of conventional PHAs, such as their crystallization behavior and material properties. This study investigated α-carbon methylated (S)- and (R)-3-hydroxy-2-methylpropionate (3H2MP) as new repeating units. 3H2MP units were homopolymerized or copolymerized with (R)-3-hydroxybutyrate (3HB) by manipulating the culture conditions of recombinant Escherichia coli LSBJ. Consequently, PHAs with 3H2MP units ranging from 5 to 100 mol % were synthesized by external addition of (R)- and (S)-enantiomers or the racemic form of 3H2MPNa. The (S)-3H2MP precursor supplemented into the culture medium was almost directly polymerized into PHA while maintaining its chirality. Therefore, a highly isotactic P(3H2MP) (R:S = 1:99) was synthesized, which displayed a melting temperature of 114-119 °C and a relatively high enthalpy of fusion (68 J/g). In contrast, in cultures supplemented with (R)-3H2MP, the precursor was racemized and polymerized into PHA, resulting in the synthesis of the amorphous polymer atactic P(3H2MP) (R:S = 40:60). However, racemization was not observed at a low concentration of the (R)-3H2MP precursor, thereby synthesizing P(3HB-co-8 mol % 3H2MP) with 100% (R)-3H2MP units. The thermogravimetric analysis revealed that the thermal degradation temperatures at 5% weight loss of P(3H2MP)s occurred at approximately 313 °C, independent of tacticity, which is substantially higher than that of P(3HB) (257 °C). This study demonstrates a new concept for controlling the physical properties of biosynthesized PHA by manipulating the polymers' tacticity using 3H2MP units.
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Affiliation(s)
- Maierwufu Mierzati
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8502, Japan
| | - Yuki Miyahara
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8502, Japan
| | - Blanche Curial
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8502, Japan
| | - Christopher T Nomura
- Department of Biological Sciences, College of Science, University of Idaho, 875 Perimeter Dr, Moscow, Idaho 83844-3010, United States
| | - Seiichi Taguchi
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada, Kobe 657-8501, Japan
| | - Hideki Abe
- Bioplastic Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takeharu Tsuge
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8502, Japan
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Andreu C, Del Olmo ML. Biotechnological applications of biofilms formed by osmotolerant and halotolerant yeasts. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12589-y. [PMID: 37233754 DOI: 10.1007/s00253-023-12589-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/27/2023]
Abstract
Many microorganisms are capable of developing biofilms under adverse conditions usually related to nutrient limitation. They are complex structures in which cells (in many cases of different species) are embedded in the material that they secrete, the extracellular matrix (ECM), which is composed of proteins, carbohydrates, lipids, and nucleic acids. The ECM has several functions including adhesion, cellular communication, nutrient distribution, and increased community resistance, this being the main drawback when these microorganisms are pathogenic. However, these structures have also proven useful in many biotechnological applications. Until now, the most interest shown in these regards has focused on bacterial biofilms, and the literature describing yeast biofilms is scarce, except for pathological strains. Oceans and other saline reservoirs are full of microorganisms adapted to extreme conditions, and the discovery and knowledge of their properties can be very interesting to explore new uses. Halotolerant and osmotolerant biofilm-forming yeasts have been employed for many years in the food and wine industry, with very few applications in other areas. The experience gained in bioremediation, food production and biocatalysis with bacterial biofilms can be inspiring to find new uses for halotolerant yeast biofilms. In this review, we focus on the biofilms formed by halotolerant and osmotolerant yeasts such as those belonging to Candida, Saccharomyces flor yeasts, Schwannyomyces or Debaryomyces, and their actual or potential biotechnological applications. KEY POINTS: • Biofilm formation by halotolerant and osmotolerant yeasts is reviewed. • Yeasts biofilms have been widely used in food and wine production. • The use of bacterial biofilms in bioremediation can be expanded to halotolerant yeast counterparts.
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Affiliation(s)
- Cecilia Andreu
- Departament de Química Orgànica, Facultat de Farmàcia, Universitat de València, Vicent Andrés Estellés S/N, 46100, València, Burjassot, Spain
| | - Marcel Lí Del Olmo
- Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Universitat de València, Dr. Moliner 50, 46100, València, Burjassot, Spain.
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Bannister KR, Prather KL. Engineering polyester monomer diversity through novel pathway design. Curr Opin Biotechnol 2023; 79:102852. [PMID: 36481340 DOI: 10.1016/j.copbio.2022.102852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 10/31/2022] [Accepted: 11/04/2022] [Indexed: 12/12/2022]
Abstract
Polyesters composed of hydroxy acids (HAs) and diols serve many material niches and are invaluable to our daily lives. However, their traditional synthesis from petrochemicals creates many environmental concerns. Metabolically engineered microorganisms have been leveraged for the industrially competitive production of a few polyesters with properties that limit their application. Designing new metabolic pathways to polyester building blocks is essential to broadening material property diversity and improving carbon and energy usage of current bioproduction schemes. This review focuses on recently developed pathways to HAs and diols. Specifically, new pathways to 2,3- and ω-Hydroxy acids, as well as C3-C4 and medium-chain-length diols, are discussed. Pathways to the same compound are compared on the basis of criteria such as energy usage, number of pathway steps, and titer. Finally, suggestions for improvements and next steps for each pathway are also discussed.
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Affiliation(s)
- K'yal R Bannister
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Kristala Lj Prather
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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Lebeau J, Efromson JP, Lynch MD. A Review of the Biotechnological Production of Methacrylic Acid. Front Bioeng Biotechnol 2020; 8:207. [PMID: 32266236 PMCID: PMC7100375 DOI: 10.3389/fbioe.2020.00207] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 03/02/2020] [Indexed: 01/22/2023] Open
Abstract
Industrial biotechnology can lead to new routes and potentially to more sustainable production of numerous chemicals. We review the potential of biobased routes from sugars to the large volume commodity, methacrylic acid, involving fermentation based bioprocesses. We cover the key progress over the past decade on direct and indirect fermentation based routes to methacrylic acid including both academic as well as patent literature. Finally, we take a critical look at the potential of biobased routes to methacrylic acid in comparison with both incumbent as well as newer greener petrochemical based processes.
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Affiliation(s)
- Juliana Lebeau
- Department of Biomedical Engineering, Duke University, Durham, NC, United States
| | - John P Efromson
- Department of Biomedical Engineering, Duke University, Durham, NC, United States
| | - Michael D Lynch
- Department of Biomedical Engineering, Duke University, Durham, NC, United States
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Česnik M, Sudar M, Roldan R, Hernandez K, Parella T, Clapés P, Charnock S, Vasić-Rački Đ, Findrik Blažević Z. Model-based optimization of the enzymatic aldol addition of propanal to formaldehyde: A first step towards enzymatic synthesis of 3-hydroxybutyric acid. Chem Eng Res Des 2019. [DOI: 10.1016/j.cherd.2019.06.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Marín-Valls R, Hernández K, Bolte M, Joglar J, Bujons J, Clapés P. Chemoenzymatic Hydroxymethylation of Carboxylic Acids by Tandem Stereodivergent Biocatalytic Aldol Reaction and Chemical Decarboxylation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01646] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Roser Marín-Valls
- Instituto de Química Avanzada de Cataluña IQAC−CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Karel Hernández
- Instituto de Química Avanzada de Cataluña IQAC−CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Michael Bolte
- Institut für Anorganische Chemie, J.-W.-Goethe-Universität, D-60438 Frankfurt/Main, Germany
| | - Jesús Joglar
- Instituto de Química Avanzada de Cataluña IQAC−CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Jordi Bujons
- Instituto de Química Avanzada de Cataluña IQAC−CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Pere Clapés
- Instituto de Química Avanzada de Cataluña IQAC−CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
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Jia Z, Ma H, Huang Y, Huang Y, Ren P, Song S, Hu M, Tao Y. Production of (R)-3-quinuclidinol by a whole-cell biocatalyst with high efficiency. BIOCATAL BIOTRANSFOR 2017. [DOI: 10.1080/10242422.2017.1400019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Zhenhua Jia
- Biology Institute, Hebei Academy of sciences, Shijiazhuang, P. R. China
| | - Hong Ma
- Biology Institute, Hebei Academy of sciences, Shijiazhuang, P. R. China
| | - Yali Huang
- Biology Institute, Hebei Academy of sciences, Shijiazhuang, P. R. China
| | - Yuanyuan Huang
- Biology Institute, Hebei Academy of sciences, Shijiazhuang, P. R. China
| | - Pengju Ren
- Biology Institute, Hebei Academy of sciences, Shijiazhuang, P. R. China
| | - Shuishan Song
- Biology Institute, Hebei Academy of sciences, Shijiazhuang, P. R. China
| | - Meirong Hu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P.R. China
| | - Yong Tao
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P.R. China
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Polakovič M, Švitel J, Bučko M, Filip J, Neděla V, Ansorge-Schumacher MB, Gemeiner P. Progress in biocatalysis with immobilized viable whole cells: systems development, reaction engineering and applications. Biotechnol Lett 2017; 39:667-683. [PMID: 28181062 DOI: 10.1007/s10529-017-2300-y] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 02/01/2017] [Indexed: 11/28/2022]
Abstract
Viable microbial cells are important biocatalysts in the production of fine chemicals and biofuels, in environmental applications and also in emerging applications such as biosensors or medicine. Their increasing significance is driven mainly by the intensive development of high performance recombinant strains supplying multienzyme cascade reaction pathways, and by advances in preservation of the native state and stability of whole-cell biocatalysts throughout their application. In many cases, the stability and performance of whole-cell biocatalysts can be highly improved by controlled immobilization techniques. This review summarizes the current progress in the development of immobilized whole-cell biocatalysts, the immobilization methods as well as in the bioreaction engineering aspects and economical aspects of their biocatalytic applications.
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Affiliation(s)
- Milan Polakovič
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak Technical University, Bratislava, Slovakia
| | - Juraj Švitel
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak Technical University, Bratislava, Slovakia
| | - Marek Bučko
- Department of Glycobiotechnology, Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Jaroslav Filip
- Center for Advanced Materials, Qatar University, Doha, Qatar
| | - Vilém Neděla
- Institute of Scientific Instruments, Academy of Sciences Czech Republic, Brno, Czech Republic
| | | | - Peter Gemeiner
- Department of Glycobiotechnology, Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia.
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Willrodt C, Halan B, Karthaus L, Rehdorf J, Julsing MK, Buehler K, Schmid A. Continuous multistep synthesis of perillic acid from limonene by catalytic biofilms under segmented flow. Biotechnol Bioeng 2016; 114:281-290. [DOI: 10.1002/bit.26071] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 07/25/2016] [Accepted: 08/01/2016] [Indexed: 02/06/2023]
Affiliation(s)
- Christian Willrodt
- Department of Solar Materials; Helmholtz Centre for Environmental Research (UFZ); Permoserstrasse 15 04318 Leipzig Germany
| | - Babu Halan
- Department of Solar Materials; Helmholtz Centre for Environmental Research (UFZ); Permoserstrasse 15 04318 Leipzig Germany
| | - Lisa Karthaus
- Department of Biochemical and Chemical Engineering; Laboratory of Chemical Biotechnology; TU Dortmund University; Dortmund Germany
| | | | - Mattijs K. Julsing
- Department of Biochemical and Chemical Engineering; Laboratory of Chemical Biotechnology; TU Dortmund University; Dortmund Germany
| | - Katja Buehler
- Department of Solar Materials; Helmholtz Centre for Environmental Research (UFZ); Permoserstrasse 15 04318 Leipzig Germany
| | - Andreas Schmid
- Department of Solar Materials; Helmholtz Centre for Environmental Research (UFZ); Permoserstrasse 15 04318 Leipzig Germany
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