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Cordeiro CN, Rojas P, Veras STS, Kato MT, Florencio L, Sanz JL. Effect of loading rate and pH on glycerol fermentation and microbial population in an upflow anaerobic filter reactor. Bioprocess Biosyst Eng 2024; 47:991-1002. [PMID: 38822157 DOI: 10.1007/s00449-024-03003-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 03/13/2024] [Indexed: 06/02/2024]
Abstract
A reactor with silicone tubes as support medium was used for glycerol fermentation. The experimental set-up consisted of three phases. In P1, the applied glycerol loading rate (gly-LR) was in the range of 6-10 g.L-1.d-1 at an influent pH of 7.9 ± 0.4. In P2, gly-LR was kept constant (18.0 ± 1.8 g.L-1.d-1) with different doses of NaHCO3. Finally in P3, two different gly-LR (9 and 18 g.L-1.d-1) were evaluated, dosing 1 g-NaHCO3 per g-COD of glycerol. Glycerol consumption was close 90%. The main end-product was 1,3-propanediol (1,3-PDO) (0.40 mol.mol-gly-1), but ethanol was also generated, particularly at pH above 8 and low gly-LR (0.20 mol.mol-gly-1). After 1-year operation with glycerol as the only carbon source, a drastic shift in the bacterial community was observed. The 1,3-PDO producers Lacrimispora and Clostridium became dominant, although non-glycerol-degrading fermentative genera, e.g., Actinomyces and Eubacterium, thrived at the expense of cellular breakdown products.
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Affiliation(s)
- Cândida N Cordeiro
- Department of Molecular Biology, Autonomous University of Madrid, 28049, Madrid, Spain.
- Department of Civil and Environmental Engineering, Laboratory of Environmental Sanitation, Federal University of Pernambuco, Recife, PE, 50740-530, Brazil.
| | - Patricia Rojas
- Department of Molecular Biology, Autonomous University of Madrid, 28049, Madrid, Spain
| | - Shyrlane T S Veras
- Department of Civil and Environmental Engineering, Laboratory of Environmental Sanitation, Federal University of Pernambuco, Recife, PE, 50740-530, Brazil
| | - Mario T Kato
- Department of Civil and Environmental Engineering, Laboratory of Environmental Sanitation, Federal University of Pernambuco, Recife, PE, 50740-530, Brazil
| | - Lourdinha Florencio
- Department of Civil and Environmental Engineering, Laboratory of Environmental Sanitation, Federal University of Pernambuco, Recife, PE, 50740-530, Brazil
| | - José Luis Sanz
- Department of Molecular Biology, Autonomous University of Madrid, 28049, Madrid, Spain
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2
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Bortolucci J, Guazzaroni ME, Schoch T, Dürre P, Reginatto V. Enhancing 1,3-Propanediol Productivity in the Non-Model Chassis Clostridium beijerinckii through Genetic Manipulation. Microorganisms 2023; 11:1855. [PMID: 37513028 PMCID: PMC10383064 DOI: 10.3390/microorganisms11071855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/20/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
Biotechnological processes at biorefineries are considered one of the most attractive alternatives for valorizing biomasses by converting them into bioproducts, biofuels, and bioenergy. For example, biodiesel can be obtained from oils and grease but generates glycerol as a byproduct. Glycerol recycling has been studied in several bioprocesses, with one of them being its conversion to 1,3-propanediol (1,3-PDO) by Clostridium. Clostridium beijerinckii is particularly interesting because it can produce a range of industrially relevant chemicals, including solvents and organic acids, and it is non-pathogenic. However, while Clostridium species have many potential advantages as chassis for synthetic biology applications, there are significant limitations when considering their use, such as their limited genetic tools, slow growth rate, and oxygen sensitivity. In this work, we carried out the overexpression of the genes involved in the synthesis of 1,3-PDO in C. beijerinckii Br21, which allowed us to increase the 1,3-PDO productivity in this strain. Thus, this study contributed to a better understanding of the metabolic pathways of glycerol conversion to 1,3-PDO by a C. beijerinckii isolate. Also, it made it possible to establish a transformation method of a modular vector in this strain, therefore expanding the limited genetic tools available for this bacterium, which is highly relevant in biotechnological applications.
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Affiliation(s)
- Jonatã Bortolucci
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto 14040-030, SP, Brazil
| | - María-Eugenia Guazzaroni
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto 14040-030, SP, Brazil
| | - Teresa Schoch
- Institut für Mikrobiologie und Biotechnologie, Universität Ulm, Albert-Einstein-Allee, 11, D-89081 Ulm, Germany
| | - Peter Dürre
- Institut für Mikrobiologie und Biotechnologie, Universität Ulm, Albert-Einstein-Allee, 11, D-89081 Ulm, Germany
| | - Valeria Reginatto
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto 14040-030, SP, Brazil
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3
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Schoch T, Baur T, Kunz J, Stöferle S, Dürre P. Heterologous 1,3-Propanediol Production Using Different Recombinant Clostridium beijerinckii DSM 6423 Strains. Microorganisms 2023; 11:microorganisms11030784. [PMID: 36985357 PMCID: PMC10054281 DOI: 10.3390/microorganisms11030784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/14/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
1,3-propanediol (1,3-PDO) is a valuable basic chemical, especially in the polymer industry to produce polytrimethylene terephthalate. Unfortunately, the production of 1,3-PDO mainly depends on petroleum products as precursors. Furthermore, the chemical routes have significant disadvantages, such as environmental issues. An alternative is the biobased fermentation of 1,3-PDO from cheap glycerol. Clostridium beijerinckii DSM 6423 was originally reported to produce 1,3-PDO. However, this could not be confirmed, and a genome analysis revealed the loss of an essential gene. Thus, 1,3-PDO production was genetically reinstalled. Genes for 1,3-PDO production from Clostridium pasteurianum DSM 525 and Clostridium beijerinckii DSM 15410 (formerly Clostridium diolis) were introduced into C. beijerinckii DSM 6423 to enable 1,3-PDO production from glycerol. 1,3-PDO production by recombinant C. beijerinckii strains were investigated under different growth conditions. 1,3-PDO production was only observed for C. beijerinckii [pMTL83251_Ppta-ack_1,3-PDO.diolis], which harbors the genes of C. beijerinckii DSM 15410. By buffering the growth medium, production could be increased by 74%. Furthermore, the effect of four different promoters was analyzed. The use of the constitutive thlA promoter from Clostridium acetobutylicum led to a 167% increase in 1,3-PDO production compared to the initial recombinant approach.
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Affiliation(s)
- Teresa Schoch
- Institut für Mikrobiologie und Biotechnologie, Universität Ulm, 89081 Ulm, Germany
| | - Tina Baur
- Institut für Mikrobiologie und Biotechnologie, Universität Ulm, 89081 Ulm, Germany
| | - Johanna Kunz
- Institut für Mikrobiologie und Biotechnologie, Universität Ulm, 89081 Ulm, Germany
| | - Sophia Stöferle
- Institut für Mikrobiologie und Biotechnologie, Universität Ulm, 89081 Ulm, Germany
| | - Peter Dürre
- Institut für Mikrobiologie und Biotechnologie, Universität Ulm, 89081 Ulm, Germany
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4
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Dhabhai R, Koranian P, Huang Q, Scheibelhoffer DSB, Dalai AK. Purification of glycerol and its conversion to value-added chemicals: A review. SEP SCI TECHNOL 2023. [DOI: 10.1080/01496395.2023.2189054] [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: 03/17/2023]
Affiliation(s)
| | | | | | | | - Ajay Kumar Dalai
- Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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Narisetty V, Adlakha N, Kumar Singh N, Dalei SK, Prabhu AA, Nagarajan S, Naresh Kumar A, Amruthraj Nagoth J, Kumar G, Singh V, Kumar V. Integrated biorefineries for repurposing of food wastes into value-added products. BIORESOURCE TECHNOLOGY 2022; 363:127856. [PMID: 36058538 DOI: 10.1016/j.biortech.2022.127856] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Food waste (FW) generated through various scenarios from farm to fork causes serious environmental problems when either incinerated or disposed inappropriately. The presence of significant amounts of carbohydrates, proteins, and lipids enable FW to serve as sustainable and renewable feedstock for the biorefineries. Implementation of multiple substrates and product biorefinery as a platform could pursue an immense potential of reducing costs for bio-based process and improving its commercial viability. The review focuses on conversion of surplus FW into range of value-added products including biosurfactants, biopolymers, diols, and bioenergy. The review includes in-depth description of various types of FW, their chemical and nutrient compositions, current valorization techniques and regulations. Further, it describes limitations of FW as feedstock for biorefineries. In the end, review discuss future scope to provide a clear path for sustainable and net-zero carbon biorefineries.
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Affiliation(s)
- Vivek Narisetty
- Innovation Centre, Moolec Science Pvt. Ltd., Gallow Hill, Warwick CV34 6UW, United Kingdom
| | - Nidhi Adlakha
- Synthetic Biology and Bioprocessing Group, Regional Centre for Biotechnology, NCR-Biotech Cluster, Faridabad, India
| | - Navodit Kumar Singh
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New-Delhi 110016, India
| | - Sudipt Kumar Dalei
- Synthetic Biology and Bioprocessing Group, Regional Centre for Biotechnology, NCR-Biotech Cluster, Faridabad, India
| | - Ashish A Prabhu
- Department of Biotechnology, National Institute of Technology Warangal, Warangal, Telangana 506004, India
| | - Sanjay Nagarajan
- Sustainable Environment Research Centre, University of South Wales, Pontypridd CF37 4BB, United Kingdom
| | - A Naresh Kumar
- Department of Environmental Science and Technology, University of Maryland, College Park, MD 20742, USA
| | - Joseph Amruthraj Nagoth
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy
| | - Gopalakrishnan Kumar
- Institute of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, Box 8600 Forus, 4036 Stavanger, Norway; School of Civil and Environmental Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Vijai Singh
- Department of Biosciences, Indrashil University, Rajpur, Gujarat, India
| | - Vinod Kumar
- School of Water, Energy, and Environment, Cranfield University, Cranfield MK43 0AL, United Kingdom.
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6
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Glycerol Waste to Bio-Ethanol: Optimization of Fermentation Parameters by the Taguchi Method. J CHEM-NY 2022. [DOI: 10.1155/2022/4892992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Global attention caused by pollutants and greenhouse gas emissions leads to alternative fuels that decrease the dependence on fossil fuels and reduce the carbon footprint that preceded the development of biodiesel production. Glycerol residue is generated more significantly from the biodiesel industry as a byproduct and is left as waste. In this study, we utilized glycerol residue from the biodiesel industry as an excellent opportunity to convert ethanol by bioconversion. The waste glycerol was used as a good and cheap carbon source as a substrate to synthesize ethanol by immobilizing E. coli cells. The screening of parameters such as mass substrate, temperature, inoculum size, and fermentation time was carried out using the one-factor-at-a-time (OFAT) technique. The Taguchi model employed optimization of fermentation parameters. The process parameters showed the mass substrate glycerol of 20 g with an inoculum size of 20%, and 12 hours yielded the ethanol concentration of 10.0 g/L.
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7
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Bioconversion of Glycerol into Lactic Acid by a New Bacterial Strain from the Brazilian Cerrado Soil. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8100477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A lactic-acid-producing strain was isolated from the Brazilian Cerrado soil (Brazilian savanna). Glycerol, a byproduct of the biodiesel industry, can be converted into various chemical intermediates of industrial value by biotechnological routes. Klebsiella pneumoniae can metabolize glycerol in environments with or without oxygen and bioconvert it into several chemicals with high value-added, such as lactic acid, 3-hydroxypropionic acid and 1,3 propanediol. The wild-type bacterial strain (2GPP) isolated from a soil sample from the Brazilian Cerrado was determined to be a K. pneumoniae complex that was capable of successfully metabolizing glycerol. Fermentations were performed with different temperatures, pH, and inoculum concentrations to evaluate the best lactic acid production. At first, 1,3-propanediol and L-(+)-lactic acid were produced in mini reactors. A lactic acid production of 3.8 g·L−1 and a decrease in 1,3-propanediol output were observed. Thus, by adjusting process variables such as pH and temperature during fermentation, it was possible to maximize the production of lactic acid and decrease the formation of 1,3-propanediol by utilizing experimental design strategies.
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8
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Tsapou EA, Ntourtoglou G, Drosou F, Tataridis P, Lalas S, Dourtoglou V. Pulsed electric field: A “green” extraction technology for biomolecular products from glycerol with fermentation of non-Saccharomyces yeasts. Front Bioeng Biotechnol 2022; 10:964174. [PMID: 36177179 PMCID: PMC9513813 DOI: 10.3389/fbioe.2022.964174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/03/2022] [Indexed: 11/23/2022] Open
Abstract
Glycerol is the main organic by-product of the biodiesel industry and it can be a source of carbon for fermentations or a substrate for biotransformations. This work investigates a process that uses pulsed electric field (PEF) to enhance polyol and propanediols extraction from a glycerol/glucose fermentation broth. Three different commercial, non-Saccharomyces strains, Torulaspora delbrueckii Prelude (Hansen), Torulaspora delbrueckii Biodiva 291 (Lallemand) and Metschnikowia pulcherrima (Lallemand) were studied. The results revealed that PEF had a positive impact on the extraction of polyols ranging from 12 to 191%, independently of fermentation conditions. Torulaspora delbrueckii Biodiva 291 (Lallemand) was found to be more efficient at pH 7.1. An optimized chromatography-based method for the qualitative and quantitative determination of the formed products evaluated. The experiments were carried out either in flasks or in a bioreactor.
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Affiliation(s)
- Evangelia A. Tsapou
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Athens, Greece
| | - George Ntourtoglou
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Athens, Greece
| | - Fotini Drosou
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Athens, Greece
| | - Panagiotis Tataridis
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Athens, Greece
| | - Stavros Lalas
- Department of Food Science and Nutrition, University of Thessaly, Karditsa, Greece
| | - Vassilis Dourtoglou
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Athens, Greece
- *Correspondence: Vassilis Dourtoglou,
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9
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Direct production of polyhydroxybutyrate and alginate from crude glycerol by Azotobacter vinelandii using atmospheric nitrogen. Sci Rep 2022; 12:8032. [PMID: 35672418 PMCID: PMC9174451 DOI: 10.1038/s41598-022-11728-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 04/21/2022] [Indexed: 11/09/2022] Open
Abstract
While biodiesel is drawing attention as an eco-friendly fuel, the use of crude glycerol, a byproduct of the fuel production process, has increasingly become a concern to be addressed. Here we show the development of a low-cost fermentation technology using an atmospheric nitrogen-fixing bacterium to recycle crude glycerol into functional biopolymers. Azotobacter vinelandii showed substantial growth on tap water-diluted crude glycerol without any pretreatment. The number of viable A. vinelandii cells increased over 1000-fold under optimal growth conditions. Most of the glycerol content (~ 0.2%) in the crude glycerol medium was completely depleted within 48 h of culture. Useful polymers, such as polyhydroxybutyrate and alginate, were also produced. Polyhydroxybutyrate productivity was increased ten-fold by blocking the alginate synthesis pathway. Although there are few examples of using crude glycerol directly as a carbon source for microbial fermentation, there are no reports on the use of crude glycerol without the addition of a nitrogen source. This study demonstrated that it is possible to develop a technology to produce industrially useful polymers from crude glycerol through energy-saving and energy-efficient fermentation using the atmospheric nitrogen-fixing microorganism A. vinelandii.
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10
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Current Trends in Acetins Production: Green versus Non-Green Synthesis. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072255. [PMID: 35408654 PMCID: PMC9000466 DOI: 10.3390/molecules27072255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/27/2022] [Accepted: 03/29/2022] [Indexed: 11/16/2022]
Abstract
To utilize excess glycerol produced from the biodiesel industry, researchers are developing innovative methods of transforming glycerol into value-added chemicals. One strategy adopted is the conversion of glycerol into acetins, which are esters of glycerol that have wide applications in cosmetics, pharmaceuticals, food and fuel additives, and plasticizers and serve as precursors for other chemical compounds. Acetins are synthesized either by traditional chemical methods or by biological processes. Although the chemical methods are efficient, productive, and commercialized, they are "non-green", meaning that they are unsafe for the environment and consumers. On the other hand, the biological process is "green" in the sense that it protects both the environment and consumers. It is, however, less productive and requires further effort to achieve commercialization. Thus, both methodologies have benefits and drawbacks, and this study aims to present and discuss these. In addition, we briefly discuss general strategies for optimizing biological processes that could apply to acetins production on an industrial scale.
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Paul Alphy M, Hakkim Hazeena S, Binoop M, Madhavan A, Arun KB, Vivek N, Sindhu R, Kumar Awasthi M, Binod P. Synthesis of C2-C4 diols from bioresources: Pathways and metabolic intervention strategies. BIORESOURCE TECHNOLOGY 2022; 346:126410. [PMID: 34838635 DOI: 10.1016/j.biortech.2021.126410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/17/2021] [Accepted: 11/19/2021] [Indexed: 06/13/2023]
Abstract
Diols are important platform chemicals with extensive industrial applications in biopolymer synthesis, cosmetics, and fuels. The increased dependence on non-renewable sources to meet the energy requirement of the population raised issues regarding fossil fuel depletion and environmental impacts. The utilization of biological methods for the synthesis of diols by utilizing renewable resources such as glycerol and agro-residual wastes gained attention worldwide because of its advantages. Among these, biotransformation of 1,3-propanediol (1,3-PDO) and 2,3-butanediol (2,3-BDO) were extensively studied and at present, these diols are produced commercially in large scale with high yield. Many important isomers of C2-C4 diols lack natural synthetic pathways and development of chassis strains for the synthesis can be accomplished by adopting synthetic biology approaches. This current review depicts an overall idea about the pathways involved in C2-C4 diol production, metabolic intervention strategies and technologies in recent years.
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Affiliation(s)
- Maria Paul Alphy
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sulfath Hakkim Hazeena
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mohan Binoop
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India
| | - Aravind Madhavan
- Rajiv Gandhi Center for Biotechnology, Jagathy, Thiruvananthapuram 695 014, Kerala, India
| | - K B Arun
- Rajiv Gandhi Center for Biotechnology, Jagathy, Thiruvananthapuram 695 014, Kerala, India
| | - Narisetty Vivek
- Centre for Climate and Environmental Protection, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Raveendran Sindhu
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712 100, China
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India.
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12
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Systems metabolic engineering of Corynebacterium glutamicum for high-level production of 1,3-propanediol from glucose and xylose. Metab Eng 2022; 70:79-88. [PMID: 35038553 DOI: 10.1016/j.ymben.2022.01.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/14/2021] [Accepted: 01/12/2022] [Indexed: 01/02/2023]
Abstract
Corynebacterium glutamicum is a versatile chassis which has been widely used to produce various amino acids and organic acids. In this study, we report the development of an efficient C. glutamicum strain to produce 1,3-propanediol (1,3-PDO) from glucose and xylose by systems metabolic engineering approaches, including (1) construction and optimization of two different glycerol synthesis modules; (2) combining glycerol and 1,3-PDO synthesis modules; (3) reducing 3-hydroxypropionate accumulation by clarifying a mechanism involving 1,3-PDO re-consumption; (4) reducing the accumulation of toxic 3-hydroxypropionaldehyde by pathway engineering; (5) engineering NADPH generation pathway and anaplerotic pathway. The final engineered strain can efficiently produce 1,3-PDO from glucose with a titer of 110.4 g/L, a yield of 0.42 g/g glucose, and a productivity of 2.30 g/L/h in fed-batch fermentation. By further introducing an optimized xylose metabolism module, the engineered strain can simultaneously utilize glucose and xylose to produce 1,3-PDO with a titer of 98.2 g/L and a yield of 0.38 g/g sugars. This result demonstrates that C. glutamicum is a potential chassis for the industrial production of 1,3-PDO from abundant lignocellulosic feedstocks.
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13
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Isolation and characterization of a newly identified Clostridium butyricum strain SCUT343-4 for 1,3-propanediol production. Bioprocess Biosyst Eng 2021; 44:2375-2385. [PMID: 34231034 DOI: 10.1007/s00449-021-02610-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/01/2021] [Indexed: 10/20/2022]
Abstract
A novel 1,3-propanediol (1,3-PDO) producing strain was isolated and identified as Clostridium butyricum with respect to its morphological and physiological characteristics, as well as 16S rDNA. The results of substrates test and stress tolerance indicated that C. butyricum SCUT343-4 could produce 1,3-PDO efficiently from glycerol. The optimal fermentation conditions were determined to be 5 g/L yeast extract at 37 °C and pH 6.5. To fully evaluate its 1,3-PDO production capacity, different cultivation strategies have been implemented. The highest 1,3-PDO concentration obtained for batch and fed-batch fermentation were 51.64 and 61.30 g/L, respectively. Immobilized cell fermentation in fibrous-bed bioreactor was also performed, and the concentration of 1,3-PDO further increased to 86 g/L with a yield of 0.52 g/g. In addition, the 1,3-PDO productivity reached 4.20 g/L h, which is the highest level reported for C. butyricum, demonstrating the potential of C. butyricum SCUT343-4 for 1,3-PDO production from glycerol.
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14
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Selvakumari IAE, Jayamuthunagai J, Bharathiraja B. Exploring the potential of biodiesel derived crude glycerol into high value malic acid: Biosynthesis, process optimization and kinetic assessment. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Fokum E, Zabed HM, Ravikumar Y, Elshobary ME, Chandankere R, Zhang Y, Yun J, Qi X. Co-fermentation of glycerol and sugars by Clostridium beijerinckii: Enhancing the biosynthesis of 1,3-propanediol. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101028] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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16
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Zhang Y, Li Z, Liu Y, Cen X, Liu D, Chen Z. Systems metabolic engineering of Vibrio natriegens for the production of 1,3-propanediol. Metab Eng 2021; 65:52-65. [PMID: 33722653 DOI: 10.1016/j.ymben.2021.03.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/28/2021] [Accepted: 03/06/2021] [Indexed: 11/18/2022]
Abstract
The economic viability of current bio-production systems is often limited by its low productivity due to slow cell growth and low substrate uptake rate. The fastest-growing bacterium Vibrio natriegens is a highly promising next-generation workhorse of the biotechnology industry which can utilize various industrially relevant carbon sources with high substrate uptake rates. Here, we demonstrate the first systematic engineering example of V. natriegens for the heterologous production of 1,3-propanediol (1,3-PDO) from glycerol. Systems metabolic engineering strategies have been applied in this study to develop a superior 1,3-PDO producer, including: (1) heterologous pathway construction and optimization; (2) engineering cellular transcriptional regulators and global transcriptomic analysis; (3) enhancing intracellular reducing power by cofactor engineering; (4) reducing the accumulation of toxic intermediate by pathway engineering; (5) systematic engineering of glycerol oxidation pathway to eliminate byproduct formation. A final engineered strain can efficiently produce 1,3-PDO with a titer of 56.2 g/L, a yield of 0.61 mol/mol, and an average productivity of 2.36 g/L/h. The strategies described in this study would be useful for engineering V. natriegens as a potential chassis for the production of other useful chemicals and biofuels.
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Affiliation(s)
- Ye Zhang
- Key Laboratory of Industrial Biocatalysis (Ministry of Education), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Zihua Li
- Key Laboratory of Industrial Biocatalysis (Ministry of Education), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yu Liu
- Key Laboratory of Industrial Biocatalysis (Ministry of Education), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Xuecong Cen
- Key Laboratory of Industrial Biocatalysis (Ministry of Education), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Dehua Liu
- Key Laboratory of Industrial Biocatalysis (Ministry of Education), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China; Tsinghua Innovation Center in Dongguan, Dongguan, 523808, China; Center for Synthetic and Systems Biology, Tsinghua University, Beijing, 100084, China
| | - Zhen Chen
- Key Laboratory of Industrial Biocatalysis (Ministry of Education), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China; Tsinghua Innovation Center in Dongguan, Dongguan, 523808, China; Center for Synthetic and Systems Biology, Tsinghua University, Beijing, 100084, China.
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Mojarrad M, Tajima T, Hida A, Kato J. Psychrophile-based simple biocatalysts for effective coproduction of 3-hydroxypropionic acid and 1,3-propanediol. Biosci Biotechnol Biochem 2021; 85:728-738. [PMID: 33624773 DOI: 10.1093/bbb/zbaa081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 11/06/2020] [Indexed: 11/14/2022]
Abstract
3-Hydroxypropionic acid (3-HP) and 1,3-propanediol (1,3-PDO) have tremendous potential markets in many industries. This study evaluated the simultaneous biosynthesis of the 2 compounds using the new psychrophile-based simple biocatalyst (PSCat) reaction system. The PSCat method is based on the expression of glycerol dehydratase, 1,3-propanediol dehydrogenase, and aldehyde dehydrogenase from Klebsiella pneumoniae in Shewanella livingstonensis Ac10 and Shewanella frigidimarina DSM 12253, individually. Heat treatment at 45 °C for 15 min deactivated the intracellular metabolic flux, and the production process was started after adding substrate, cofactor, and coenzyme. In the solo production process after 1 h, the maximum production of 3-HP was 62.0 m m. For 1,3-PDO, the maximum production was 25.0 m m. In the simultaneous production process, productivity was boosted, and the production of 3-HP and 1,3-PDO increased by 13.5 and 4.9 m m, respectively. Hence, the feasibility of the individual production and the simultaneous biosynthesis system were verified in the new PSCat approach.
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Affiliation(s)
- Mohammad Mojarrad
- Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8530, Japan
| | - Takahisa Tajima
- Program of Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8530, Japan
| | - Akiko Hida
- Program of Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8530, Japan
| | - Junichi Kato
- Program of Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8530, Japan
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18
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Vivek N, Hazeena SH, Alphy MP, Kumar V, Magdouli S, Sindhu R, Pandey A, Binod P. Recent advances in microbial biosynthesis of C3 - C5 diols: Genetics and process engineering approaches. BIORESOURCE TECHNOLOGY 2021; 322:124527. [PMID: 33340948 DOI: 10.1016/j.biortech.2020.124527] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/01/2020] [Accepted: 12/05/2020] [Indexed: 05/22/2023]
Abstract
Diols derived from renewable feedstocks have significant commercial interest in polymer, pharmaceutical, cosmetics, flavors and fragrances, food and feed industries. In C3-C5 diols biological processes of 1,3-propanediol, 1,2-propanediol and 2,3-butanediol have been commercialized as other isomers are non-natural metabolites and lack natural biosynthetic pathways. However, the developments in the field of systems and synthetic biology paved a new path to learn, build, construct, and test for efficient chassis strains. The current review addresses the recent advancements in metabolic engineering, construction of novel pathways, process developments aimed at enhancing in production of C3-C5 diols. The requisites on developing an efficient and sustainable commercial bioprocess for C3-C5 diols were also discussed.
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Affiliation(s)
- Narisetty Vivek
- Centre for Climate and Environmental Protection, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Sulfath Hakkim Hazeena
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695 019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Maria Paul Alphy
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695 019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Vinod Kumar
- Centre for Climate and Environmental Protection, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Sara Magdouli
- Centre technologique des résidus industriels, University of Quebec in Abitibi Témiscamingue, Quebec, Canada
| | - Raveendran Sindhu
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695 019, Kerala, India
| | - Ashok Pandey
- Centre for Innovation and Translational Research CSIR-Indian Institute of Toxicology Research (CSIR-IITR), 31MG Marg, Lucknow 226 001, India
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695 019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India.
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19
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Production of 1,3-propanediol by Lactobacillus diolivorans from agro-industrial residues and cactus cladode acid hydrolyzate. Appl Biochem Biotechnol 2021; 193:1585-1601. [PMID: 33507495 DOI: 10.1007/s12010-021-03513-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 01/18/2021] [Indexed: 12/13/2022]
Abstract
This study evaluated the bioproduction of 1,3-propanediol by Lactobacillus diolivorans in the medium based on agro-industrial residues and vegetal biomass substituting the MRS medium components. It was performed on a set of acid treatments and batch fermentations assays with crude glycerol (TCG) from biodiesel production, corn steep liquor (CSL), and cactus cladode hydrolyzate (CCH). Firstly, it was carried out on batch fermentation with different pure glycerol concentrations in MRS medium which was carried out, and the best condition achieved 4.66 g/L and 0.61 g/g of 1,3-PDO production and yield, respectively. Then, the TCG was evaluated, and a discrete increase of 1,3-PDO was observed. The replacement of the MRS medium nutrients by CLS was assessed, at different concentrations, for bacteria growth, and 5% of CLS reproduced the same biomass formation compared to the bacteria growth in MRS medium. It was also added cactus cladode hydrolyzate as the only sugar source, which showed a 1,3-PDO production close to the medium with pure glucose. Finally, a B-complex vitamin was added to the batch fermentation medium composed of TCG, CLS, and CCH, replacing all the costly MRS components. In this medium, the production of 1,3-propanediol was 6.57 g/L with a yield of 0.75 g/g. It means an increment of 29% and 19%, respectively, compared to MRS medium. Therefore, the combination of treated crude glycerol, corn steep liquor, and cactus cladode hydrolyzate has excellent potential for 1,3-PDO production by L. diolivorans.
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20
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Li C, Ong KL, Cui Z, Sang Z, Li X, Patria RD, Qi Q, Fickers P, Yan J, Lin CSK. Promising advancement in fermentative succinic acid production by yeast hosts. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123414. [PMID: 32763704 DOI: 10.1016/j.jhazmat.2020.123414] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/27/2020] [Accepted: 07/05/2020] [Indexed: 05/22/2023]
Abstract
As a platform chemical with various applications, succinic acid (SA) is currently produced by petrochemical processing from oil-derived substrates such as maleic acid. In order to replace the environmental unsustainable hydrocarbon economy with a renewable environmentally sound carbohydrate economy, bio-based SA production process has been developed during the past two decades. In this review, recent advances in the valorization of solid organic wastes including mixed food waste, agricultural waste and textile waste for efficient, green and sustainable SA production have been reviewed. Firstly, the application, market and key global players of bio-SA are summarized. Then achievements in SA production by several promising yeasts including Saccharomyces cerevisiae and Yarrowia lipolytica are detailed, followed by calculation and comparison of SA production costs between oil-based substrates and raw materials. Lastly, challenges in engineered microorganisms and fermentation processes are presented together with perspectives on the development of robust yeast SA producers via genome-scale metabolic optimization and application of low-cost raw materials as fermentation substrates. This review provides valuable insights for identifying useful directions for future bio-SA production improvement.
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Affiliation(s)
- Chong Li
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Khai Lun Ong
- School of Energy and Environment, City University of Hong Kong, Hong Kong, China
| | - Zhiyong Cui
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Zhenyu Sang
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China; School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Xiaotong Li
- School of Energy and Environment, City University of Hong Kong, Hong Kong, China
| | - Raffel Dharma Patria
- School of Energy and Environment, City University of Hong Kong, Hong Kong, China
| | - Qingsheng Qi
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Patrick Fickers
- Microbial Processes and Interactions, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech., Av. de la Faculté, 2B, 5030, Gembloux, Belgium
| | - Jianbin Yan
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
| | - Carol Sze Ki Lin
- School of Energy and Environment, City University of Hong Kong, Hong Kong, China.
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21
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Veras STS, Rojas P, Florencio L, Kato MT, Sanz JL. 1,3-Propanediol production from glycerol in polyurethane foam containing anaerobic reactors: performance and biomass cultivation and retention. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:45662-45674. [PMID: 32803577 DOI: 10.1007/s11356-020-10404-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
The use of batch and upflow anaerobic reactors filled with polyurethane foam for pure glycerol fermentation was evaluated. The best reactor operational conditions to obtain high yield and productivity of 1,3-propanediol (1,3-PDO) as the main product and the role of the polyurethane foam in the growth and retention of suspended and attached biomass in the reactors were investigated. In the experiment at 30 °C with a batch reactor (700 mL), biomass growth was mostly as immobilized attached cells, and the achieved 1,3-PDO yield was up to 0.58 mol mol-gly-1. In the experiment (30 °C) with an upflow anaerobic reactor (717 mL), glycerol loading rates (gly-LR) ranging from 6.94 to 15.47 g gly L-1 day-1 were applied during a 102-day period. During the operation, average 1,3-PDO yield was 0.47 mol mol-gly-1, reaching a maximum of 0.51 mol mol-gly-1 at gly-LR of 13.57 g gly L-1 day-1. High 1,3-PDO productivity (5.35 to 5.44 g L-1 day-1) was obtained when gly-LR was 13.57 to 15.47 g gly L-1 day-1. Comparing the close yield values in both batch and continuous reactors and based on microbial evaluation, it is concluded that most of the 1,3-PDO generated in the continuous reactor was due to the suspended biomass retained by the foam cubes. The Clostridium genus was the predominant 1,3-PDO producer. Good yields and productivities with packed reactors were attributed to polyurethane foam used for mixed culture growth and retention. Consequently, they are worth considering for 1,3-PDO production from pure glycerol.
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Affiliation(s)
- Shyrlane T S Veras
- Departamento de Biología Molecular, Universidad Autónoma de Madrid, 28049, Madrid, Spain
- Departamento de Engenharia Civil e Ambiental, Laboratório de Saneamento Ambiental, Universidade Federal de Pernambuco, Avenida Acadêmico Hélio Ramos, s/n, Cidade Universitária, CEP 50740-530, Recife, PE, Brazil
| | - Patricia Rojas
- Departamento de Biología Molecular, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Lourdinha Florencio
- Departamento de Engenharia Civil e Ambiental, Laboratório de Saneamento Ambiental, Universidade Federal de Pernambuco, Avenida Acadêmico Hélio Ramos, s/n, Cidade Universitária, CEP 50740-530, Recife, PE, Brazil
| | - Mario T Kato
- Departamento de Engenharia Civil e Ambiental, Laboratório de Saneamento Ambiental, Universidade Federal de Pernambuco, Avenida Acadêmico Hélio Ramos, s/n, Cidade Universitária, CEP 50740-530, Recife, PE, Brazil.
| | - José Luis Sanz
- Departamento de Biología Molecular, Universidad Autónoma de Madrid, 28049, Madrid, Spain
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22
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Efficient production of 1,3-propanediol by psychrophile-based simple biocatalysts in Shewanella livingstonensis Ac10 and Shewanella frigidimarina DSM 12253. J Biotechnol 2020; 323:293-301. [DOI: 10.1016/j.jbiotec.2020.09.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 11/22/2022]
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Tomczak W, Gryta M. Clarification of 1,3-Propanediol Fermentation Broths by Using a Ceramic Fine UF Membrane. MEMBRANES 2020; 10:E319. [PMID: 33143063 PMCID: PMC7692167 DOI: 10.3390/membranes10110319] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 11/16/2022]
Abstract
This work examined the use of a ceramic fine ultrafiltration (UF) membrane for the pre-treatment of 1,3-propanodiol (1,3-PD) fermentation broths. It has been demonstrated that the membrane used provides obtaining a high-quality, sterile permeate, which can be sequentially separated by other processes such as nanofiltration (NF) and membrane distillation (MD). Special attention was paid to the impact of the operational parameters on the membrane performance. The series of UF experiments under transmembrane pressure (TMP) from 0.1 to 0.4 MPa and feed flow rate (Q) from 200 to 400 dm3/h were performed. Moreover, the impact of the feed pH, in the range from 5 to 10, on the flux was investigated. It has been demonstrated that for fine UF, increasing the TMP is beneficial, and TMP equal to 0.4 MPa and Q of 400 dm3/h ensure the highest flux and its long-term stability. It has been shown that in terms of process efficiency, the most favorable pH of the broths is equal to 9.4. An effective and simple method of membrane cleaning was presented. Finally, the resistance-in-series model was applied to describe resistances that cause flux decline. Results obtained in this study can assist in improving the cost-effectiveness of the UF process of 1,3-PD fermentation broths.
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Affiliation(s)
- Wirginia Tomczak
- Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, ul. Pułaskiego 10, 70-322 Szczecin, Poland
- CEA, DEN/DEC, 13108 Saint-Paul-lez-Durance, France
| | - Marek Gryta
- Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, ul. Pułaskiego 10, 70-322 Szczecin, Poland
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Bharathiraja B, Selvakumari IAE, Jayamuthunagai J, Kumar RP, Varjani S, Pandey A, Gnansounou E. Biochemical conversion of biodiesel by-product into malic acid: A way towards sustainability. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 709:136206. [PMID: 31905567 DOI: 10.1016/j.scitotenv.2019.136206] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/17/2019] [Accepted: 12/17/2019] [Indexed: 06/10/2023]
Abstract
Crude glycerol, one of the ever-growing by-product of biodiesel industry and is receiving the closest review in recent times because direct disposal of crude glycerol may emerge ecological issues. The renewability, bioavailability and typical structure of glycerol, therefore, discover conceivable application in serving the role of carbon and energy source for microbial biosynthesis of high value products. This conceivable arrangement could find exploitation of crude glycerol as a renewable building block for bio-refineries as it is economically as well as environmentally profitable. In this review, we summarize the uptake and catabolism of crude glycerol by different wild and recombinant microorganism. The chemical and biochemical transformation of crude glycerol into high esteem malic acid by various microbial pathways is also additionally discussed. An extensive investigation in the synthesis of high-value malic acid production from various feed stock which finds applications in cosmeceutical and chemical industries, food and beverages, and to some extent in the field of medical science is also likewise studied. Finally, the open doors for unrefined crude glycerol in serving as a promising abundant energy source for malic acid production in near future have been highlighted.
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Affiliation(s)
- B Bharathiraja
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600 062, India
| | | | - J Jayamuthunagai
- Centre for Biotechnology, Anna University, Chennai 600 025, India
| | - R Praveen Kumar
- Department of Biotechnology, Arunai Engineering College, Thiruvannaamalai 606 603, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar 382 010, Gujarat, India.
| | - Ashok Pandey
- CSIR-Indian Institute of Toxicology Research, Lucknow 226 001, India; Frontier Research Lab, Yonsei University, Sinchon-dong, Seodaemun-gu, Seoul, South Korea.
| | - Edgard Gnansounou
- Bioenergy and Energy Planning Research Group, Ecole Polytechnique Federale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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25
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Ju JH, Wang D, Heo SY, Kim MS, Seo JW, Kim YM, Kim DH, Kang SA, Kim CH, Oh BR. Enhancement of 1,3-propanediol production from industrial by-product by Lactobacillus reuteri CH53. Microb Cell Fact 2020; 19:6. [PMID: 31931797 PMCID: PMC6956512 DOI: 10.1186/s12934-019-1275-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 12/24/2019] [Indexed: 12/14/2022] Open
Abstract
Background 1,3-propanediol (1,3-PDO) is the most widely studied value-added product that can be produced by feeding glycerol to bacteria, including Lactobacillus sp. However, previous research reported that L. reuteri only produced small amounts and had low productivity of 1,3-PDO. It is urgent to develop procedures that improve the production and productivity of 1,3-PDO. Results We identified a novel L. reuteri CH53 isolate that efficiently converted glycerol into 1,3-PDO, and performed batch co-fermentation with glycerol and glucose to evaluate its production of 1,3-PDO and other products. We optimized the fermentation conditions and nitrogen sources to increase the productivity. Fed-batch fermentation using corn steep liquor (CSL) as a replacement for beef extract led to 1,3-PDO production (68.32 ± 0.84 g/L) and productivity (1.27 ± 0.02 g/L/h) at optimized conditions (unaerated and 100 rpm). When CSL was used as an alternative nitrogen source, the activity of the vitamin B12-dependent glycerol dehydratase (dhaB) and 1,3-propanediol oxidoreductase (dhaT) increased. Also, the productivity and yield of 1,3-PDO increased as well. These results showed the highest productivity in Lactobacillus species. In addition, hurdle to 1,3-PDO production in this strain were identified via analysis of the half-maximal inhibitory concentration for growth (IC50) of numerous substrates and metabolites. Conclusions We used CSL as a low-cost nitrogen source to replace beef extract for 1,3-PDO production in L. reuteri CH53. These cells efficiently utilized crude glycerol and CSL to produce 1,3-PDO. This strain has great promise for the production of 1,3-PDO because it is generally recognized as safe (GRAS) and non-pathogenic. Also, this strain has high productivity and high conversion yield.
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Affiliation(s)
- Jung-Hyun Ju
- Microbial Biotechnology Research Center, Jeonbuk Branch Institute, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, Jeonbuk, 56212, Republic of Korea.,Department of Food Science & Technology and Functional Food Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Dexin Wang
- Radiation Utilization and Facilities Management Division, Korea Atomic Energy Research Institute, Jeongeup, Jeonbuk, 56212, Republic of Korea.,Institute for Molecular Biology and Genetics, Center for Fungal Pathogenesis, Chonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Sun-Yeon Heo
- Microbial Biotechnology Research Center, Jeonbuk Branch Institute, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, Jeonbuk, 56212, Republic of Korea
| | - Min-Soo Kim
- Microbial Biotechnology Research Center, Jeonbuk Branch Institute, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, Jeonbuk, 56212, Republic of Korea
| | - Jeong-Woo Seo
- Microbial Biotechnology Research Center, Jeonbuk Branch Institute, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, Jeonbuk, 56212, Republic of Korea
| | - Young-Min Kim
- Department of Food Science & Technology and Functional Food Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Dae-Hyuk Kim
- Institute for Molecular Biology and Genetics, Center for Fungal Pathogenesis, Chonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Soon-Ah Kang
- Department of Conversing Technology, Graduate School of Venture, Hoseo University, Seoul, 06724, Republic of Korea
| | - Chul-Ho Kim
- Microbial Biotechnology Research Center, Jeonbuk Branch Institute, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, Jeonbuk, 56212, Republic of Korea.
| | - Baek-Rock Oh
- Microbial Biotechnology Research Center, Jeonbuk Branch Institute, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, Jeonbuk, 56212, Republic of Korea.
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26
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Solventless ketalization of glycerol to solketal with acetone over the ionic liquid [P(C4H9)3C14H29][TsO]. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2019.07.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Chen WC, Chuang CJ, Chang JS, Wang LF, Soo PC, Wu HS, Tsai SL, Wei YH. Exploring Dual-Substrate Cultivation Strategy of 1,3-Propanediol Production Using Klebsiella pneumoniae. Appl Biochem Biotechnol 2019; 191:346-359. [PMID: 31863348 DOI: 10.1007/s12010-019-03208-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/05/2019] [Indexed: 10/25/2022]
Abstract
1,3-Propanediol (1,3-PDO) has numerous industrial applications in the synthesis of the monomer of the widely used fiber polytrimethylene terephthalate. In this work, the production of 1,3-PDO by Klebsiella pneumoniae is increased by dual-substrate cultivation and fed-batch fermentation. Experimental results indicate that the production of 1,3-PDO can be elevated to 16.09 g/L using a dual substrate ratio (of glucose to crude glycerol) of 1/30 and to 20.73 g/L using an optimized dual-substrate ratio of 1/20. Ultimately, the optimal dual-substrate feeding for a 5 L scale fed-batch fermenter that maximizes 1,3-PDO production (29.69 g/L) is determined. This production yield is better than that reported in most related studies. Eventually, the molecular weight and chemical structure of 1,3-PDO were obtained by FAB-MS, 1H-NMR, and 13C-NMR. Also, in demonstrating the effectiveness of the fermentation strategy in increasing the production and production yield of 1,3-PDO, experimental results indicate that the fermentation of 1,3-PDO is highly promising for commercialization.
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Affiliation(s)
- Wei-Chuan Chen
- Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Chung-Li, Taoyuan, 320, Taiwan
| | - Chi-Ju Chuang
- Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Chung-Li, Taoyuan, 320, Taiwan
| | - Jo-Shu Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan City, 701, Taiwan.,Department of Chemical and Materials Engineering, College of Engineering, Tunghai University, Taichung, 407, Taiwan
| | - Li-Fen Wang
- Department of Applied Chemistry and Materials Science, Fooyin University, Daliao Dist, Kaohsiung City, Taiwan
| | - Po-Chi Soo
- Institute of Medical Biotechnology, Tzu Chi University, No.701, Sec. 3, Zhongyang Rd., 97004, Hualien, Taiwan
| | - Ho-Shing Wu
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taoyuan, 320, Taiwan
| | - Shen-Long Tsai
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 100, Taiwan
| | - Yu-Hong Wei
- Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Chung-Li, Taoyuan, 320, Taiwan.
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Russmayer H, Egermeier M, Kalemasi D, Sauer M. Spotlight on biodiversity of microbial cell factories for glycerol conversion. Biotechnol Adv 2019; 37:107395. [DOI: 10.1016/j.biotechadv.2019.05.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 04/28/2019] [Accepted: 05/02/2019] [Indexed: 12/28/2022]
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Garg R, Baral P, Jain L, Kurmi AK, Agrawal D. Monitoring steady production of 1,3-propanediol during bioprospecting of glycerol-assimilating soil microbiome using dye-based pH-stat method. J Appl Microbiol 2019; 128:491-499. [PMID: 31642142 DOI: 10.1111/jam.14496] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/01/2019] [Accepted: 10/17/2019] [Indexed: 11/29/2022]
Abstract
AIM In this investigation, a dye-based pH-stat method was devised for monitoring steady production of 1,3-propanediol (1,3-PDO) during bioprospecting of glycerol-assimilating soil microbiome. METHODS AND RESULTS Soil samples were collected from two potential sites of CSIR-IIP, India. Selective enrichment of microbial consortia was done using the glycerol-based medium at initial stage, followed by purification to isolated colonies, after positive high-performance liquid chromatography detection of 1,3-PDO in the fermentation broth. When the purified isolated were re-tested for 1,3-PDO production, only two isolates namely Isolate 1 and Isolate 3 were capable of producing the targeted product preferably under anaerobic conditions. Based on better 1,3-PDO fermentation efficiency (Isolate 3, 22% vs Isolate 1, 4·48%) and acetic acid as the only major by-product, Isolate 3 was shortlisted for further studies. A dye-based technique was devised in which bromothymol blue was incorporated into the medium to monitor the pH drop due to acetic acid formation and hence change in colour. Visual change in colour helped in intermittent pH restoration. During fermentation, with pH stat being 8-8·5, Isolate 3 at 32°C yielded 0·67 mol mol-1 1,3-PDO within a short span of 12 h only with an initial concentration of glycerol being 20 g l-1 . Phylogenetic analysis revealed that Isolate 3 shared 95·8% homology with Citrobacter freundii CFNIH1 and hence designated as C. freundii IIP DR3. CONCLUSION This study demonstrated that during bioprospecting glycerol-assimilating microbiome, dye-based technique can be successfully employed. This technique can further be exploited to monitor consistent production of all microbial secondary metabolites that accompanies acid production. SIGNIFICANCE AND IMPACT OF THE STUDY Incorporation of 'Bromothymol blue' can visually help in the identification of pH drop in the medium, so that pH stat can be easily maintained during 1,3-PDO production from glycerol especially under shake flask conditions.
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Affiliation(s)
- R Garg
- Biochemistry and Biotechnology Area, Materials Resource Efficiency Division, CSIR-Indian Institute of Petroleum, Mohkampur, Dehradun, 248005, India.,Department of Bioscience and Biotechnology, Banasthali Vidyapith, Jaipur, Rajasthan, 304022, India
| | - P Baral
- Biochemistry and Biotechnology Area, Materials Resource Efficiency Division, CSIR-Indian Institute of Petroleum, Mohkampur, Dehradun, 248005, India
| | - L Jain
- Biochemistry and Biotechnology Area, Materials Resource Efficiency Division, CSIR-Indian Institute of Petroleum, Mohkampur, Dehradun, 248005, India
| | - A K Kurmi
- Biochemistry and Biotechnology Area, Materials Resource Efficiency Division, CSIR-Indian Institute of Petroleum, Mohkampur, Dehradun, 248005, India
| | - D Agrawal
- Biochemistry and Biotechnology Area, Materials Resource Efficiency Division, CSIR-Indian Institute of Petroleum, Mohkampur, Dehradun, 248005, India
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Vivek N, Hazeena SH, Rajesh RO, Godan TK, Anjali KB, Nair LM, Mohan B, Nair SC, Sindhu R, Pandey A, Binod P. Genomics of Lactic Acid Bacteria for Glycerol Dissimilation. Mol Biotechnol 2019; 61:562-578. [DOI: 10.1007/s12033-019-00186-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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31
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Adaptability of Klebsiella pneumoniae 2e, a Newly Isolated 1,3-Propanediol-Producing Strain, to Crude Glycerol as Revealed by Genomic Profiling. Appl Environ Microbiol 2019; 85:AEM.00254-19. [PMID: 30902851 DOI: 10.1128/aem.00254-19] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 03/14/2019] [Indexed: 11/20/2022] Open
Abstract
Crude glycerol is largely generated as the main by-product of the biodiesel industry and is unprofitable for industrial application without costly purification. The direct bioconversion of crude glycerol into 1,3-propanediol (1,3-PDO) by microorganisms is a promising alternative for effective and economic utilization. In this study, Klebsiella pneumoniae 2e was newly isolated for the conversion of crude glycerol into 1,3-PDO. Batch fermentation analysis confirmed that crude glycerol and its main impurities had slight impacts on the growth, key enzyme activity, and 1,3-PDO production of K. pneumoniae 2e. The 1,3-PDO yield from crude glycerol by K. pneumoniae 2e reached 0.64 mol 1,3-PDO/mol glycerol, which was higher than that by most reported 1,3-PDO-producing Klebsiella strains. Genomic profiling revealed that K. pneumoniae 2e possesses 30 genes involved in glycerol anaerobic metabolism and 1,3-PDO biosynthesis. Quantitative real-time PCR analysis of these genes showed that the majority of the genes encoding the key enzymes for glycerol metabolism and 1,3-PDO biosynthesis were significantly upregulated during culture in crude glycerol relative to that in pure glycerol. Further comparative genomic analysis revealed a novel glycerol uptake facilitator protein in K. pneumoniae 2e and a higher number of stress response proteins than in other Klebsiella strains. This work confirms the adaptability of a newly isolated 1,3-PDO-producing strain, K. pneumoniae 2e, to crude glycerol and provides insights into the molecular mechanisms involved in its crude glycerol tolerance, which is valuable for industrial 1,3-PDO production from crude glycerol.IMPORTANCE The rapid development of the biodiesel industry has led to tremendous crude glycerol generation. Due to the presence of complex impurities, crude glycerol has low value for industry without costly purification. Obtaining novel microorganisms capable of direct and efficient bioconversion of crude glycerol to value-added products has great economic potential for industrial application. In this work, we characterized a newly isolated strain, Klebsiella pneumoniae 2e, with the capacity to efficiently produce 1,3-propanediol (1,3-PDO) from crude glycerol and demonstrated its adaptation to crude glycerol. Our work provides insights into the molecular mechanisms of K. pneumoniae 2e adaptation to crude glycerol and the expression patterns of its genes involved in 1,3-PDO biosynthesis, which will contribute to the development of industrial 1,3-PDO production from crude glycerol.
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Veras STS, Rojas P, Florencio L, Kato MT, Sanz JL. Production of 1,3-propanediol from pure and crude glycerol using a UASB reactor with attached biomass in silicone support. BIORESOURCE TECHNOLOGY 2019; 279:140-148. [PMID: 30716606 DOI: 10.1016/j.biortech.2019.01.125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/24/2019] [Accepted: 01/25/2019] [Indexed: 06/09/2023]
Abstract
The 1,3-propanediol (1,3-PDO) yield and productivity from glycerol were studied over a 155-day period. A UASB reactor that also contained silicone support for biomass attachment was used to evaluate the optimal operational conditions and microbiota development. The highest average 1,3-PDO yield was 0.54 and 0.48 mol.mol-gly-1 when reactor pH was 5.0-5.5 and the applied loading rate was 18 and 20 g-gly.L-1.d-1 using the pure and crude substrate, respectively. The productivity was close to 7.5 g.L-1.d-1 for both substrates; therefore, the direct use of crude glycerol can be valorized in practice. Clostridium was the predominant genus for 1,3-PDO production and C. pasteurianum was dominant in the biofilm. Using crude glycerol, C. beijerinckii dropped strongly; some Clostridium population was then replaced by Klebsiella pneumoniae and Lactobacillus spp. The good process performance and the advances in the microbiota knowledge are steps forward to obtain a more cost-effective system in practice.
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Affiliation(s)
- S T S Veras
- Universidad Autónoma de Madrid, Department of Molecular Biology, Madrid 28049, Spain; Federal University of Pernambuco, Department of Civil and Environmental Engineering, Laboratory of Environmental Sanitation, Recife, PE 50740-530, Brazil
| | - P Rojas
- Universidad Autónoma de Madrid, Department of Molecular Biology, Madrid 28049, Spain
| | - L Florencio
- Federal University of Pernambuco, Department of Civil and Environmental Engineering, Laboratory of Environmental Sanitation, Recife, PE 50740-530, Brazil
| | - M T Kato
- Federal University of Pernambuco, Department of Civil and Environmental Engineering, Laboratory of Environmental Sanitation, Recife, PE 50740-530, Brazil
| | - J L Sanz
- Universidad Autónoma de Madrid, Department of Molecular Biology, Madrid 28049, Spain.
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Iyyappan J, Baskar G, Bharathiraja B, Saravanathamizhan R. Malic acid production from biodiesel derived crude glycerol using morphologically controlled Aspergillus niger in batch fermentation. BIORESOURCE TECHNOLOGY 2018; 269:393-399. [PMID: 30205264 DOI: 10.1016/j.biortech.2018.09.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/30/2018] [Accepted: 09/01/2018] [Indexed: 06/08/2023]
Abstract
In the present investigation, the effects of crude glycerol concentration, spore inoculum concentration, yeast extract concentration and shaking frequency on seed morphology of Aspergillus niger PJR1 on malic acid production were investigated and dispersed fungal mycelium with higher biomass (20.25 ± 0.91 g/L) was obtained when A. niger PJR1 grow on crude glycerol. Dry cell weight under dispersed fermentation was 21.28% higher than usual pellet fermentation. The optimal crude glycerol, nitrogen source and nitrogen source concentration were found to be 160 g/L, yeast extract and 1.5 g/L, respectively. Batch fermentation in a shake flask culture containing 160 g/L crude glycerol resulted in the yield of malic acid 83.23 ± 1.86 g/L, after 192 h at 25 °C. Results revealed that morphological control of A. niger is an efficient method for increased malic acid production when crude glycerol derived from biodiesel production is used as feedstock.
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Affiliation(s)
- J Iyyappan
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600062, India
| | - G Baskar
- Department of Biotechnology, St. Joseph's College of Engineering, Chennai 600119, India.
| | - B Bharathiraja
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600062, India
| | - R Saravanathamizhan
- Department of Chemical Engineering, A. C. Tech Campus, Anna University, Chennai 600025, India
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Rukowicz B, Alejski K. A biologically-derived 1,3-propanediol recovery from fermentation broth using preparative liquid chromatography. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.05.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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35
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Optimized 1,3-propanediol production from crude glycerol using mixed cultures in batch and continuous reactors. Bioprocess Biosyst Eng 2018; 41:1807-1816. [PMID: 30167787 DOI: 10.1007/s00449-018-2003-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 08/25/2018] [Indexed: 02/05/2023]
Abstract
The production of 1,3-propanediol from crude glycerol and mixed anaerobic sludge was investigated in batch experiments and continuous reactors. Using a 23 complete factorial design, the effects of the concentration of glycerol (22-30 g L-1), KH2PO4 (1.50-2.00 g L-1), and vitamin B12 (7-8 mg L-1) were examined in batch reactors. As an evaluated response, the highest 1,3-PD yields occurred for high concentrations of vitamin B12 and low levels of KH2PO4, reaching 0.57 g g-1 glycerol consumed. The variable glycerol concentration was not significant in the studied range. In addition, the condition that provided the best 1,3-PD yield was applied to an anaerobic fluidized bed reactor fed with crude glycerol (26.0 g L-1), which was monitored as the hydraulic retention time (HRT) decreased from 36 to 12 h. The greatest 1,3-PD yield, of 0.31 g g-1 glycerol, was obtained with an HRT of 28 h.
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36
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Dikshit PK, Kharmawlong GJ, Moholkar VS. Investigations in sonication-induced intensification of crude glycerol fermentation to dihydroxyacetone by free and immobilized Gluconobacter oxydans. BIORESOURCE TECHNOLOGY 2018; 256:302-311. [PMID: 29455098 DOI: 10.1016/j.biortech.2018.02.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 02/02/2018] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
This study reports crude glycerol fermentation by G. oxydans for dihydroxyacetone (DHA) production, and intensification of fermentation with sonication. Fermentation was carried out using both free and immobilized cells (on polyurethane foam support) for initial glycerol concentrations of 20, 30 and 50 g/L. Sonication at 20% duty cycle enhanced glycerol consumption by 60-84% with no significant change in cell morphology. Lesser DHA yield in crude glycerol fermentation was attributed to possible formation of inhibitory products. Slight reduction in DHA yield for initial glycerol concentration of 50 g/L was attributed to substrate inhibition. Higher DHA productivity was obtained for immobilized cells. Circular dichroism analysis of intracellular proteins obtained from ultrasound-treated G. oxydans revealed significant reduction in α-helix and β-sheet content. These conformational changes in protein structure could augment activity of intracellular glycerol dehydrogenase, which is manifested in terms of enhanced metabolism of glycerol by G. oxydans.
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Affiliation(s)
- Pritam Kumar Dikshit
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781 039, Assam, India
| | - Gracel Joe Kharmawlong
- Department of Chemical Engineering, National Institute of Technology (NIT), Tiruchirapalli 620 015, Tamil Nadu, India
| | - Vijayanand S Moholkar
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781 039, Assam, India.
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Vivek N, Pandey A, Binod P. An efficient aqueous two phase systems using dual inorganic electrolytes to separate 1,3-propanediol from the fermented broth. BIORESOURCE TECHNOLOGY 2018; 254:239-246. [PMID: 29413929 DOI: 10.1016/j.biortech.2018.01.076] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/09/2018] [Accepted: 01/15/2018] [Indexed: 06/08/2023]
Abstract
An aqueous two phase extraction using K2CO3:K2HPO4/Isoproponal was investigated for the recovery of 1,3-propanediol from the fermented broth. Initially, the concentration of K2CO3 on phase formation, the partition co-efficient and recovery of 1,3-PDO was evaluated with a optimum salt concentration of 60%. Later the partition co-efficient was improved using dual inorganic salts, K2CO3 and K2HPO4 with an optimum concentration of 45% and 15% respectively. Using Central Composite Design, pH and temperature on partition and recovery of 1,3-PDO was evaluated. With the optimized physical conditions and inorganic salts concentration, ATPS extraction was carried out in synthetic solution as well as fermented broth resulting in maximum 1,3-PDO partition co-efficient value of 42.46 and 56.93 and recovery yield of 97.69 and 98.27% respectively. A fair partition was observed with organic acids and 1,3-PDO, with removal of lactic acid and acetic acid up to 93.29 and 90.42% respectively.
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Affiliation(s)
- Narisetty Vivek
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Ashok Pandey
- CSIR-Indian Institute of Toxicology Research, 31 MG Marg, Lucknow 226 001, India
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, Kerala, India.
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Iyyappan J, Bharathiraja B, Baskar G, Jayamuthunagai J, Barathkumar S, Anna Shiny R. Malic acid production by chemically induced Aspergillus niger MTCC 281 mutant from crude glycerol. BIORESOURCE TECHNOLOGY 2018; 251:264-267. [PMID: 29288953 DOI: 10.1016/j.biortech.2017.12.055] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 12/14/2017] [Accepted: 12/18/2017] [Indexed: 06/07/2023]
Abstract
In the present investigation, crude glycerol derived from transesterification process was utilized to produce the commercially-valuable malic acid. A combined resistant on methanol and malic acid strain of Aspergillus niger MTCC 281 mutant was generated in solid medium containing methanol (1-5%) and malic acid (40-80 g/L) by the adaptation process for 22 weeks. The ability of induced Aspergillus niger MTCC 281 mutant to utilize crude glycerol and pure glycerol to produce malic acid was studied. The yield of malic acid was increased with 4.45 folds compared with that of parent strain from crude glycerol. The highest concentration of malic acid from crude glycerol by using beneficial mutant was found to be 77.38 ± 0.51 g/L after 192 h at 25 °C. This present study specified that crude glycerol by-product from biodiesel production could be used for producing high amount of malic acid without any pretreatment.
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Affiliation(s)
- J Iyyappan
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600062, India
| | - B Bharathiraja
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600062, India.
| | - G Baskar
- Department of Biotechnology, St. Joseph's College of Engineering, Chennai 600119, India
| | - J Jayamuthunagai
- Centre for Biotechnology, Anna University, Chennai 600025, India
| | - S Barathkumar
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600062, India
| | - R Anna Shiny
- Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600062, India
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Yun J, Yang M, Magocha TA, Zhang H, Xue Y, Zhang G, Qi X, Sun W. Production of 1,3-propanediol using a novel 1,3-propanediol dehydrogenase from isolated Clostridium butyricum and co-biotransformation of whole cells. BIORESOURCE TECHNOLOGY 2018; 247:838-843. [PMID: 30060420 DOI: 10.1016/j.biortech.2017.09.180] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/24/2017] [Accepted: 09/26/2017] [Indexed: 06/08/2023]
Abstract
In this study, a newly strain named Clostridium butyricum YJH-09 were isolated from the sample of pond soil and identified through physiological, biochemical and 16S rDNA analysis. Then, the dhaT gene encoding a novel 1,3-propanediol dehydrogenase (PDOR) was cloned from this strain and expressed in Escherichia coli BL21(DE3). Subsequently, the recombinant PDOR was purified and the optimal pH and temperature, specific activities and kinetic parameter were investigated. Furthermore, the whole cells of Clostridium butyricum YJH-09 mixed with BL21-dhaT were used to produce 1,3-PD through co-biotransformation. As results, 25.88g/L of 1,3-PD was generated with 0.54g/g yield from 50g/L glycerol in 30h, and the 1,3-PD production was increased more than 2-fold compared with wild type strain alone. This research would offer useful information for further development of the biosynthesis of 1,3-PD.
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Affiliation(s)
- Junhua Yun
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China
| | - Miaomiao Yang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China
| | - Tinashe A Magocha
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China
| | - Huanhuan Zhang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China
| | - Yanbo Xue
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China
| | - Guoyan Zhang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China
| | - Xianghui Qi
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China.
| | - Wenjing Sun
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China
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40
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Pradima J, Kulkarni MR, Archna. Review on enzymatic synthesis of value added products of glycerol, a by-product derived from biodiesel production. RESOURCE-EFFICIENT TECHNOLOGIES 2017. [DOI: 10.1016/j.reffit.2017.02.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Vivek N, Aswathi T, Sven PR, Pandey A, Binod P. Self-cycling fermentation for 1,3-propanediol production: Comparative evaluation of metabolite flux in cell recycling, simple batch and continuous processes using Lactobacillus brevis N1E9.3.3 strain. J Biotechnol 2017; 259:110-119. [DOI: 10.1016/j.jbiotec.2017.07.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 07/19/2017] [Accepted: 07/27/2017] [Indexed: 01/31/2023]
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Narisetty V, Astray G, Gullón B, Castro E, Parameswaran B, Pandey A. Improved 1,3-propanediol production with maintained physical conditions and optimized media composition: Validation with statistical and neural approach. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2017.07.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Vivek N, Sindhu R, Madhavan A, Anju AJ, Castro E, Faraco V, Pandey A, Binod P. Recent advances in the production of value added chemicals and lipids utilizing biodiesel industry generated crude glycerol as a substrate - Metabolic aspects, challenges and possibilities: An overview. BIORESOURCE TECHNOLOGY 2017; 239:507-517. [PMID: 28550990 DOI: 10.1016/j.biortech.2017.05.056] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/06/2017] [Accepted: 05/10/2017] [Indexed: 05/12/2023]
Abstract
One of the major ecological concerns associated with biodiesel production is the generation of waste/crude glycerol during the trans-esterification process. Purification of this crude glycerol is not economically viable. In this context, the development of an efficient and economically viable strategy would be biotransformation reactions converting the biodiesel derived crude glycerol into value added chemicals. Hence the process ensures the sustainability and waste management in biodiesel industry, paving a path to integrated biorefineries. This review addresses a waste to wealth approach for utilization of crude glycerol in the production of value added chemicals, current trends, challenges, future perspectives, metabolic approaches and the genetic tools developed for the improved synthesis over wild type microorganisms were described.
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Affiliation(s)
- Narisetty Vivek
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST, Thiruvananthapuram 695 019, Kerala, India
| | - Raveendran Sindhu
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, Kerala, India
| | - Aravind Madhavan
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, Kerala, India; Rajiv Gandhi Center for Biotechnology, Thiruvananthapuram 695 014, Kerala, India
| | - Alphonsa Jose Anju
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST, Thiruvananthapuram 695 019, Kerala, India
| | - Eulogio Castro
- Department of Chemical, Environmental and Materials Engineering, University of Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
| | - Vincenza Faraco
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 4, 80126 Naples, Italy
| | - Ashok Pandey
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, Kerala, India; Center of Innovative and Applied Bioprocessing, Sector 81, Mohali 160 071, Punjab, India
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, Kerala, India.
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44
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The Efficient Clade: Lactic Acid Bacteria for Industrial Chemical Production. Trends Biotechnol 2017; 35:756-769. [DOI: 10.1016/j.tibtech.2017.05.002] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 04/28/2017] [Accepted: 05/02/2017] [Indexed: 12/12/2022]
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Tomita S, Saito K, Nakamura T, Sekiyama Y, Kikuchi J. Rapid discrimination of strain-dependent fermentation characteristics among Lactobacillus strains by NMR-based metabolomics of fermented vegetable juice. PLoS One 2017; 12:e0182229. [PMID: 28759594 PMCID: PMC5536307 DOI: 10.1371/journal.pone.0182229] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 07/16/2017] [Indexed: 11/19/2022] Open
Abstract
In this study, we investigated the applicability of NMR-based metabolomics to discriminate strain-dependent fermentation characteristics of lactic acid bacteria (LAB), which are important microorganisms for fermented food production. To evaluate the discrimination capability, six type strains of Lactobacillus species and six additional L. brevis strains were used focusing on i) the difference between homo- and hetero-lactic fermentative species and ii) strain-dependent characteristics within L. brevis. Based on the differences in the metabolite profiles of fermented vegetable juices, non-targeted principal component analysis (PCA) clearly separated the samples into those inoculated with homo- and hetero-lactic fermentative species. The separation was primarily explained by the different levels of dominant metabolites (lactic acid, acetic acid, ethanol, and mannitol). Orthogonal partial least squares discrimination analysis, based on a regions-of-interest (ROIs) approach, revealed the contribution of low-abundance metabolites: acetoin, phenyllactic acid, p-hydroxyphenyllactic acid, glycerophosphocholine, and succinic acid for homolactic fermentation; and ornithine, tyramine, and γ-aminobutyric acid (GABA) for heterolactic fermentation. Furthermore, ROIs-based PCA of seven L. brevis strains separated their strain-dependent fermentation characteristics primarily based on their ability to utilize sucrose and citric acid, and convert glutamic acid and tyrosine into GABA and tyramine, respectively. In conclusion, NMR metabolomics successfully discriminated the fermentation characteristics of the tested strains and provided further information on metabolites responsible for these characteristics, which may impact the taste, aroma, and functional properties of fermented foods.
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Affiliation(s)
- Satoru Tomita
- Food Research Institute, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
- * E-mail:
| | - Katsuichi Saito
- Food Research Institute, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Toshihide Nakamura
- Food Research Institute, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Yasuyo Sekiyama
- Food Research Institute, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Jun Kikuchi
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
- Graduate School of Bioagricultural Sciences and School of Agricultural Sciences, Nagoya University, Nagoya, Japan
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Aranday-García R, Román Guerrero A, Ifuku S, Shirai K. Successive inoculation of Lactobacillus brevis and Rhizopus oligosporus on shrimp wastes for recovery of chitin and added-value products. Process Biochem 2017. [DOI: 10.1016/j.procbio.2017.04.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Guo Y, Dai L, Xin B, Tao F, Tang H, Shen Y, Xu P. 1,3-Propanediol production by a newly isolated strain, Clostridium perfringens GYL. BIORESOURCE TECHNOLOGY 2017; 233:406-412. [PMID: 28315821 DOI: 10.1016/j.biortech.2017.02.116] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 02/23/2017] [Accepted: 02/24/2017] [Indexed: 06/06/2023]
Abstract
1,3-Propanediol (1,3-PD), a valuable bulk industrial material, has attracted increasing interest in recent years. A novel strain GYL isolated from soil samples could efficiently convert glycerol to 1,3-PD anaerobically. The physiological and biochemical characteristics of strain GYL were determined, indicating that strain GYL is a member of Clostridium perfringens with the neighbor-joining method of 16S rRNA gene sequences. The fermentation properties of strain GYL were also investigated systematically, which showed that the strain has a fast growth speed and high tolerance to 200g/L glycerol. Batch fermentation was carried out at a high glycerol concentration of 100g/L, and strain GYL produced 36.7g/L 1,3-PD. In fed-batch fermentation, strain GYL showed a maximum productivity of 2.0g/(L·h), and produced 40.0g/L 1,3-PD, with a high yield of 0.68mol 1,3-PD/mol glycerol. This study shows that the newly isolated strain GYL may have potential for 1,3-PD production from glycerol.
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Affiliation(s)
- Yali Guo
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China; State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Lu Dai
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China; State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Bo Xin
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Fei Tao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China; State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China; Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People's Republic of China.
| | - Hongzhi Tang
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Yaling Shen
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Ping Xu
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China; Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People's Republic of China
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Kurahashi K, Kimura C, Fujimoto Y, Tokumoto H. Value-adding conversion and volume reduction of sewage sludge by anaerobic co-digestion with crude glycerol. BIORESOURCE TECHNOLOGY 2017; 232:119-125. [PMID: 28214698 DOI: 10.1016/j.biortech.2017.02.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 01/31/2017] [Accepted: 02/03/2017] [Indexed: 06/06/2023]
Abstract
In this study, conversion of sewage sludge to biogas by anaerobic co-digestion with crude glycerol was examined. When 0.126g/L crude glycerol was added to the reactor, only methane was produced. Upon addition of 5.04g/L crude glycerol, hydrogen production occurred, and a significant amount of 1,3-propanediol (1,3-PDO) was generated in the liquid phase. On day 6, the dry weight was largely composed of organic acids (48%) and 1,3-PDO (17%), which are water-soluble. Degradation of 1,3-PDO was very slow, which is advantageous for recovery. Crude glycerol, which contains alkaline substances, promoted organic matter degradation by microorganisms, which possibly affected biogas and 1,3-PDO production. Addition of 0.630-2.52g/L glycerol initially led to hydrogen production, followed by methane production a few days later, which stabilized within 1week. In conclusion, adjustment of the crude glycerol concentration allows controllable conversion to value-added products for co-digestion.
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Affiliation(s)
- Kensuke Kurahashi
- Osaka Prefecture University College of Technology, 26-12 Saiwai-cho, Neyagawa, Osaka 572-8572, Japan
| | - Chie Kimura
- Department of Chemical Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - You Fujimoto
- Department of Chemical Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Hayato Tokumoto
- Department of Chemical Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan.
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Bosma EF, Forster J, Nielsen AT. Lactobacilli and pediococci as versatile cell factories - Evaluation of strain properties and genetic tools. Biotechnol Adv 2017; 35:419-442. [PMID: 28396124 DOI: 10.1016/j.biotechadv.2017.04.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/29/2017] [Accepted: 04/03/2017] [Indexed: 12/14/2022]
Abstract
This review discusses opportunities and bottlenecks for cell factory development of Lactic Acid Bacteria (LAB), with an emphasis on lactobacilli and pediococci, their metabolism and genetic tools. In order to enable economically feasible bio-based production of chemicals and fuels in a biorefinery, the choice of product, substrate and production organism is important. Currently, the most frequently used production hosts include Escherichia coli and Saccharomyces cerevisiae, but promising examples are available of alternative hosts such as LAB. Particularly lactobacilli and pediococci can offer benefits such as thermotolerance, an extended substrate range and increased tolerance to stresses such as low pH or high alcohol concentrations. This review will evaluate the properties and metabolism of these organisms, and provide an overview of their current biotechnological applications and metabolic engineering. We substantiate the review by including experimental results from screening various lactobacilli and pediococci for transformability, growth temperature range and ability to grow under biotechnologically relevant stress conditions. Since availability of efficient genetic engineering tools is a crucial prerequisite for industrial strain development, genetic tool development is extensively discussed. A range of genetic tools exist for Lactococcus lactis, but for other species of LAB like lactobacilli and pediococci such tools are less well developed. Whereas lactobacilli and pediococci have a long history of use in food and beverage fermentation, their use as platform organisms for production purposes is rather new. By harnessing their properties such as thermotolerance and stress resistance, and by using emerging high-throughput genetic tools, these organisms are very promising as versatile cell factories for biorefinery applications.
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Affiliation(s)
- Elleke F Bosma
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet B220, 2800 Kgs. Lyngby, Denmark
| | - Jochen Forster
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet B220, 2800 Kgs. Lyngby, Denmark
| | - Alex Toftgaard Nielsen
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet B220, 2800 Kgs. Lyngby, Denmark.
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Dugmore TIJ, Clark JH, Bustamante J, Houghton JA, Matharu AS. Valorisation of Biowastes for the Production of Green Materials Using Chemical Methods. Top Curr Chem (Cham) 2017; 375:46. [PMID: 28374283 PMCID: PMC5396386 DOI: 10.1007/s41061-017-0133-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 03/20/2017] [Indexed: 10/27/2022]
Abstract
With crude oil reserves dwindling, the hunt for a sustainable alternative feedstock for fuels and materials for our society continues to expand. The biorefinery concept has enjoyed both a surge in popularity and also vocal opposition to the idea of diverting food-grade land and crops for this purpose. The idea of using the inevitable wastes arising from biomass processing, particularly farming and food production, is, therefore, gaining more attention as the feedstock for the biorefinery. For the three main components of biomass-carbohydrates, lipids, and proteins-there are long-established processes for using some of these by-products. However, the recent advances in chemical technologies are expanding both the feedstocks available for processing and the products that be obtained. Herein, this review presents some of the more recent developments in processing these molecules for green materials, as well as case studies that bring these technologies and materials together into final products for applied usage.
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Affiliation(s)
- Thomas I J Dugmore
- Green Chemistry Centre of Excellence, University of York, York, North Yorkshire, YO10 5DD, UK.
| | - James H Clark
- Green Chemistry Centre of Excellence, University of York, York, North Yorkshire, YO10 5DD, UK
| | - Julen Bustamante
- Green Chemistry Centre of Excellence, University of York, York, North Yorkshire, YO10 5DD, UK
| | - Joseph A Houghton
- Green Chemistry Centre of Excellence, University of York, York, North Yorkshire, YO10 5DD, UK
| | - Avtar S Matharu
- Green Chemistry Centre of Excellence, University of York, York, North Yorkshire, YO10 5DD, UK
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