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Nabila DS, Chan R, Syamsuri RRP, Nurlilasari P, Wan-Mohtar WAAQI, Ozturk AB, Rossiana N, Doni F. Biobutanol production from underutilized substrates using Clostridium: Unlocking untapped potential for sustainable energy development. CURRENT RESEARCH IN MICROBIAL SCIENCES 2024; 7:100250. [PMID: 38974669 PMCID: PMC11225672 DOI: 10.1016/j.crmicr.2024.100250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024] Open
Abstract
The increasing demand for sustainable energy has brought biobutanol as a potential substitute for fossil fuels. The Clostridium genus is deemed essential for biobutanol synthesis due to its capability to utilize various substrates. However, challenges in maintaining fermentation continuity and achieving commercialization persist due to existing barriers, including butanol toxicity to Clostridium, low substrate utilization rates, and high production costs. Proper substrate selection significantly impacts fermentation efficiency, final product quality, and economic feasibility in Clostridium biobutanol production. This review examines underutilized substrates for biobutanol production by Clostridium, which offer opportunities for environmental sustainability and a green economy. Extensive research on Clostridium, focusing on strain development and genetic engineering, is essential to enhance biobutanol production. Additionally, critical suggestions for optimizing substrate selection to enhance Clostridium biobutanol production efficiency are also provided in this review. In the future, cost reduction and advancements in biotechnology may make biobutanol a viable alternative to fossil fuels.
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Affiliation(s)
- Devina Syifa Nabila
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, West Java 45363, Indonesia
| | - Rosamond Chan
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, West Java 45363, Indonesia
| | | | - Puspita Nurlilasari
- Department of Agro-industrial Technology, Faculty of Agro-industrial Technology, Universitas Padjadjaran, Jatinangor, West Java 45363, Indonesia
| | - Wan Abd Al Qadr Imad Wan-Mohtar
- Functional Omics and Bioprocess Development Laboratory, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Abdullah Bilal Ozturk
- Department of Chemical Engineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Esenler, Istanbul 34220, Türkiye
| | - Nia Rossiana
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, West Java 45363, Indonesia
| | - Febri Doni
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, West Java 45363, Indonesia
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2
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Al-Mamun A, Ahmed W, Jafary T, Nayak JK, Al-Nuaimi A, Sana A. Recent advances in microbial electrosynthesis system: Metabolic investigation and process optimization. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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3
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The Preparation Processes and Influencing Factors of Biofuel Production from Kitchen Waste. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9030247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Kitchen waste is an important component of domestic waste, and it is both harmful and rich in resources. Approximately 1.3 billion tons of kitchen waste are produced every year worldwide. Kitchen waste is high in moisture, is readily decayed, and has an unpleasant smell. Environmental pollution can be caused if this waste is treated improperly. Conventional treatments of kitchen waste (e.g., landfilling, incineration and pulverization discharge) cause environmental, economic, and social problems. Therefore, the development of a harmless and resource-based treatment technology is urgently needed. Profits can be generated from kitchen waste by converting it into biofuels. This review intends to highlight the latest technological progress in the preparation of gaseous fuels, such as biogas, biohythane and biohydrogen, and liquid fuels, such as biodiesel, bioethanol, biobutanol and bio-oil, from kitchen waste. Additionally, the pretreatment methods, preparation processes, influencing factors and improvement strategies of biofuel production from kitchen waste are summarized. Problems that are encountered in the preparation of biofuels from kitchen waste are discussed to provide a reference for its use in energy utilization. Optimizing the preparation process of biofuels, increasing the efficiency and service life of catalysts for reaction, reasonably treating and utilizing the by-products and reaction residues to eliminate secondary pollution, improving the yield of biofuels, and reducing the cost of biofuels, are the future directions in the biofuel conversion of kitchen waste.
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Vamsi Krishna K, Bharathi N, George Shiju S, Alagesan Paari K, Malaviya A. An updated review on advancement in fermentative production strategies for biobutanol using Clostridium spp. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:47988-48019. [PMID: 35562606 DOI: 10.1007/s11356-022-20637-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
A significant concern of our fuel-dependent era is the unceasing exhaustion of petroleum fuel supplies. In parallel to this, environmental issues such as the greenhouse effect, change in global climate, and increasing global temperature must be addressed on a priority basis. Biobutanol, which has fuel characteristics comparable to gasoline, has attracted global attention as a viable green fuel alternative among the many biofuel alternatives. Renewable biomass could be used for the sustainable production of biobutanol by the acetone-butanol-ethanol (ABE) pathway. Non-extinguishable resources, such as algal and lignocellulosic biomass, and starch are some of the most commonly used feedstock for fermentative production of biobutanol, and each has its particular set of advantages. Clostridium, a gram-positive endospore-forming bacterium that can produce a range of compounds, along with n-butanol is traditionally known for its biobutanol production capabilities. Clostridium fermentation produces biobased n-butanol through ABE fermentation. However, low butanol titer, a lack of suitable feedstock, and product inhibition are the primary difficulties in biobutanol synthesis. Critical issues that are essential for sustainable production of biobutanol include (i) developing high butanol titer producing strains utilizing genetic and metabolic engineering approaches, (ii) renewable biomass that could be used for biobutanol production at a larger scale, and (iii) addressing the limits of traditional batch fermentation by integrated bioprocessing technologies with effective product recovery procedures that have increased the efficiency of biobutanol synthesis. Our paper reviews the current progress in all three aspects of butanol production and presents recent data on current practices in fermentative biobutanol production technology.
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Affiliation(s)
- Kondapalli Vamsi Krishna
- Applied and Industrial Biotechnology Laboratory, CHRIST (Deemed-to-Be University), Hosur road, Bangalore, Karnataka, India
| | - Natarajan Bharathi
- Department of Life Sciences, CHRIST (Deemed to Be University), Bengaluru, India
| | - Shon George Shiju
- Applied and Industrial Biotechnology Laboratory, CHRIST (Deemed-to-Be University), Hosur road, Bangalore, Karnataka, India
| | | | - Alok Malaviya
- Applied and Industrial Biotechnology Laboratory, CHRIST (Deemed-to-Be University), Hosur road, Bangalore, Karnataka, India.
- Department of Life Sciences, CHRIST (Deemed to Be University), Bengaluru, India.
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5
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Wang Y, Li Z, Li Q, Wang H. Tandem Reactions for the Synthesis of High-Density Polycyclic Biofuels with a Double/Triple Hexane Ring. ACS OMEGA 2022; 7:19158-19165. [PMID: 35721904 PMCID: PMC9202244 DOI: 10.1021/acsomega.1c07241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Synthesizing high-density fuels from non-food biomass is of great interest in the field of biomass conversion because they can increase the loading capability and travel distance of vehicles and aircraft as compared to conventional low-density biofuels (<0.78 g/cm3). In this work, we reported a new and facile strategy for the synthesis of high-density biofuels with polycyclic structures from lignocellulose-derived 5,5-dimethyl-1,3-cyclohexanedione and different aldehyde derivatives in two steps under mild reaction conditions, including a developed tandem reaction and a hydrodeoxygenation reaction. Theoretical approaches were used to estimate the fuel properties, which indicate that the obtained biofuels have a high density of 0.78-0.88 g/cm3 and high net heat of combustion (NHOC) values of 44.0-46.0 MJ/kg. A representative biofuel 3c was measured to have a high NHOC of 43.4 MJ/kg, which matched well with the calculated NHOC value of 44.4 MJ/kg, indicating the high accuracy of the theoretical approaches. This work is expected to provide a green strategy for the synthesis of polycyclic high-density biofuels with platform chemicals.
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Affiliation(s)
- Yizhuo Wang
- State
Key Laboratory of Multiphase Flow in Power Engineering & Frontier
Institute of Science and Technology, Xi’an
Jiaotong University, Xi’an 710054, China
| | - Zhanchao Li
- State
Key Laboratory of Multiphase Flow in Power Engineering & Frontier
Institute of Science and Technology, Xi’an
Jiaotong University, Xi’an 710054, China
- School
of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan 643000, China
| | - Qing Li
- State
Key Laboratory of Multiphase Flow in Power Engineering & Frontier
Institute of Science and Technology, Xi’an
Jiaotong University, Xi’an 710054, China
| | - Hong Wang
- State
Key Laboratory of Multiphase Flow in Power Engineering & Frontier
Institute of Science and Technology, Xi’an
Jiaotong University, Xi’an 710054, China
- School
of Energy and Power Engineering, Xi’an
Jiaotong University, Xi’an 710054, China
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Beckwée EJ, Wittevrongel GR, Claessens B. Comparing column dynamics in the liquid and vapor phase adsorption of biobutanol on an activated carbon monolith. ADSORPTION 2022. [DOI: 10.1007/s10450-022-00362-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Calvo DC, Luna HJ, Arango JA, Torres CI, Rittmann BE. Determining global trends in syngas fermentation research through a bibliometric analysis. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 307:114522. [PMID: 35066199 DOI: 10.1016/j.jenvman.2022.114522] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 01/10/2022] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
Syngas fermentation, in which microorganisms convert H2, CO, and CO2 to acids and alcohols, is a promising alternative for carbon cycling and valorization. The intellectual landscape of the topic was characterized through a bibliometric analysis using a search query (SQ) that included all relevant documents on syngas fermentation available through the Web of Science database up to December 31st, 2021. The SQ was validated with a preliminary analysis in bibliometrix and a review of titles and abstracts of all sources. Although syngas fermentation began in the early 1980s, it grew rapidly beginning in 2008, with 92.5% of total publications and 87.3% of total citations from 2008 to 2021. The field has been steadily moving from fundamentals towards applications, suggesting that the field is maturing scientifically. The greatest number of publications and citations are from the USA, and researchers in China, Germany, and Spain also are highly active. Although collaborations have increased in the past few years, author-cluster analysis shows specialized research domains with little collaboration between groups. Based on topic trends, the main challenges to be address are related to mass-transfer limitations, and researchers are starting to explore mixed cultures, genetic engineering, microbial chain elongation, and biorefineries.
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Affiliation(s)
- Diana C Calvo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, PO Box 85287-3005, USA; Biodesign Center for Health Through Microbiomes, Arizona State University, Tempe, AZ, PO Box 85287-3005, USA.
| | - Hector J Luna
- Grupo GRESIA, Department of Environmental Engineering, Universidad Antonio Nariño, Bogotá, 110231, Colombia; Environmental and Chemical Technology Group, Department of Chemistry, Federal University of Ouro Preto, Campus University, Campus Universitario, Brazil
| | - Jineth A Arango
- Pontificia Universidad Católica de Valparaíso, Valparaíso, 2362803, Chile.
| | - Cesar I Torres
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, PO Box 85287-3005, USA.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, PO Box 85287-3005, USA.
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8
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de Souza Machado G, Bauerfeldt GF. Kinetic analysis of the acetone-butanol-ethanol combustion mechanism in 0D simulated Otto cycle internal engine. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-021-02137-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Micek-Ilnicka A, Ogrodowicz N, Filek U, Kusior A. The role of TiO2 polymorphs as support for the Keggin-type tungstophosphoric heteropolyacid as catalysts for n-butanol dehydration. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.04.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Metabolic engineering for the production of butanol, a potential advanced biofuel, from renewable resources. Biochem Soc Trans 2021; 48:2283-2293. [PMID: 32897293 DOI: 10.1042/bst20200603] [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: 06/13/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 12/20/2022]
Abstract
Butanol is an important chemical and potential fuel. For more than 100 years, acetone-butanol-ethanol (ABE) fermentation of Clostridium strains has been the most successful process for biological butanol production. In recent years, other microbes have been engineered to produce butanol as well, among which Escherichia coli was the best one. Considering the crude oil price fluctuation, minimizing the cost of butanol production is of highest priority for its industrial application. Therefore, using cheaper feedstocks instead of pure sugars is an important project. In this review, we summarized butanol production from different renewable resources, such as industrial and food waste, lignocellulosic biomass, syngas and other renewable resources. This review will present the current progress in this field and provide insights for further engineering efforts on renewable butanol production.
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11
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High Performance of Biohydrogen Production in Packed-Filter Bioreactor via Optimizing Packed-Filter Position. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18147462. [PMID: 34299912 PMCID: PMC8304059 DOI: 10.3390/ijerph18147462] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 11/17/2022]
Abstract
In this present investigation, a packed-filter bioreactor was employed to produce hydrogen utilizing an expired soft drink as a substrate. The effects of feeding substrate concentrations ranging from 19.51, 10.19, 5.34, 3.48, to 2.51 g total sugar/L were examined, and the position of the packed filter installed in the bioreactor at dimensionless heights (h/H) of 1/4, 2/4, 3/4, and 4/4 was studied. The results revealed that with a substrate concentration of 20 g total sugar/L and a hydraulic retention time (HRT) of 1 h, a packed filter placed at the half-height position of the bioreactor (h/H 2/4) has the optimal hydrogen production rate, hydrogen yield, and average biomass concentration in the bioreactor, resulting in 55.70 ± 2.42 L/L/d, 0.90 ± 0.06 mol H2/mol hexose, and 17.86 ± 1.09 g VSS/L. When feeding substrate concentrations varied from 20, 10, to 5 g total sugar/L with the packed-filter position at h/H 2/4, Clostridium sp., Clostridium tyrobutyricum, and Bifidobacterium crudilactis were the predominant bacteria community. Finally, it was discovered that the packed-filter bioreactor can produce stable hydrogen in high-strength organic effluent.
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12
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Cao L, Gao Y, Wang XZ, Shu GY, Hu YN, Xie ZP, Cui W, Guo XP, Zhou X. A Series of Efficient Umbrella Modeling Strategies to Track Irradiation-Mutation Strains Improving Butyric Acid Production From the Pre-development Earlier Stage Point of View. Front Bioeng Biotechnol 2021; 9:609345. [PMID: 34222207 PMCID: PMC8242359 DOI: 10.3389/fbioe.2021.609345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 05/10/2021] [Indexed: 11/13/2022] Open
Abstract
Clostridium tyrobutyricum (C. tyrobutyricum) is a fermentation strain used to produce butyric acid. A promising new biofuel, n-butanol, can be produced by catalysis of butyrate, which can be obtained through microbial fermentation. Butyric acid has various uses in food additives and flavor agents, antiseptic substances, drug formulations, and fragrances. Its use as a food flavoring has been approved by the European Union, and it has therefore been listed on the EU Lists of Flavorings. As butyric acid fermentation is a cost-efficient process, butyric acid is an attractive feedstock for various biofuels and food commercialization products. 12C6+ irradiation has advantages over conventional mutation methods for fermentation production due to its dosage conformity and excellent biological availability. Nevertheless, the effects of these heavy-ion irradiations on the specific productiveness of C. tyrobutyricum are still uncertain. We developed non-structured mathematical models to represent the heavy-ion irradiation of C. tyrobutyricum in biofermentation reactors. The kinetic models reflect various fermentation features of the mutants, including the mutant strain growth model, butyric acid formation model, and medium consumption model. The models were constructed based on the Markov chain Monte Carlo model and logistic regression. Models were verified using experimental data in response to different initial glucose concentrations (0-180 g/L). The parameters of fixed proposals are applied in the various fermentation stages. Predictions of these models were in accordance well with the results of fermentation assays. The maximum butyric acid production was 56.3 g/L. Our study provides reliable information for increasing butyric acid production and for evaluating the feasibility of using mutant strains of C. tyrobutyricum at the pre-development phase.
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Affiliation(s)
- Li Cao
- College of Life Sciences and Engineering, Hexi University, Zhangye, China
| | - Yue Gao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,College of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Xue-Zhen Wang
- College of Life Sciences and Engineering, Hexi University, Zhangye, China
| | - Guang-Yuan Shu
- College of Life Sciences and Engineering, Hexi University, Zhangye, China
| | - Ya-Nan Hu
- College of Life Sciences and Engineering, Hexi University, Zhangye, China
| | - Zong-Ping Xie
- College of Life Sciences and Engineering, Hexi University, Zhangye, China
| | - Wei Cui
- College of Life Sciences and Engineering, Hexi University, Zhangye, China
| | - Xiao-Peng Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,College of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Xiang Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,College of Life Science, University of Chinese Academy of Sciences, Beijing, China
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13
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Shin YA, Choi S, Han M. Simultaneous Fermentation of Mixed Sugar by a Newly Isolated Clostridium beijerinckii GSC1. BIOTECHNOL BIOPROC E 2021. [DOI: 10.1007/s12257-020-0183-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Jiang Y, Wu R, Lu J, Dong W, Zhou J, Zhang W, Xin F, Jiang M. Quantitative proteomic analysis to reveal expression differences for butanol production from glycerol and glucose by Clostridium sp. strain CT7. Microb Cell Fact 2021; 20:12. [PMID: 33422075 PMCID: PMC7797090 DOI: 10.1186/s12934-021-01508-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 01/02/2021] [Indexed: 11/16/2022] Open
Abstract
Clostridium sp. strain CT7 is a new emerging microbial cell factory with high butanol production ratio owing to its non-traditional butanol fermentation mode with uncoupled acetone and 1,3-propanediol formation. Significant changes of metabolic products profile were shown in glycerol- and glucose-fed strain CT7, especially higher butanol and lower volatile fatty acids (VFAs) production occurred from glycerol-fed one. However, the mechanism of this interesting phenomenon was still unclear. To better elaborate the bacterial response towards glycerol and glucose, the quantitative proteomic analysis through iTRAQ strategy was performed to reveal the regulated proteomic expression levels under different substrates. Proteomics data showed that proteomic expression levels related with carbon metabolism and solvent generation under glycerol media were highly increased. In addition, the up-regulation of hydrogenases, ferredoxins and electron-transferring proteins may attribute to the internal redox balance, while the earlier triggered sporulation response in glycerol-fed media may be associated with the higher butanol production. This study will pave the way for metabolic engineering of other industrial microorganisms to obtain efficient butanol production from glycerol.
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Affiliation(s)
- Yujia Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Puzhu South Road 30#, 211800, Nanjing, P. R. China
| | - Ruofan Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Puzhu South Road 30#, 211800, Nanjing, P. R. China
| | - Jiasheng Lu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Puzhu South Road 30#, 211800, Nanjing, P. R. China
| | - Weiliang Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Puzhu South Road 30#, 211800, Nanjing, P. R. China.,Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 211800, Nanjing, P.R. China
| | - Jie Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Puzhu South Road 30#, 211800, Nanjing, P. R. China
| | - Wenming Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Puzhu South Road 30#, 211800, Nanjing, P. R. China.,Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 211800, Nanjing, P.R. China
| | - Fengxue Xin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Puzhu South Road 30#, 211800, Nanjing, P. R. China. .,Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 211800, Nanjing, P.R. China.
| | - Min Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Puzhu South Road 30#, 211800, Nanjing, P. R. China. .,Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 211800, Nanjing, P.R. China.
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15
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Tri CL, Kamei I. Butanol production from cellulosic material by anaerobic co-culture of white-rot fungus Phlebia and bacterium Clostridium in consolidated bioprocessing. BIORESOURCE TECHNOLOGY 2020; 305:123065. [PMID: 32120233 DOI: 10.1016/j.biortech.2020.123065] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 06/10/2023]
Abstract
Butanol production from lignocelluloses is desirable. Unfortunately, the known wild-types of butanol fermenting Clostridium bacteria are not capable of delignification and saccharification. Here we analyzed butanol production from cellulosic material using anaerobic co-culture of C. saccharoperbutylacetonicum with the white-rot fungus Phlebia sp. MG-60-P2. In consolidated bioprocessing, the co-culture synergistically produced butanol and enhanced saccharification. Knockout of the pyruvate decarboxylase gene from MG-60-P2 to produce transformant line KO77 led to inhibition of ethanol fermentation and high accumulation of saccharified cellobiose and glucose from cellulose. In co-culture of KO77 with C. saccharoperbutylacetonicum, enhanced butanol production was observed (3.2 g/L, compared with 2.5 g/L in co-culture of MG-60-P2 and C. saccharoperbutylacetonicum). We believe this is the first application of co-culture between white-rot fungus and Clostridium to produce butanol from cellulose; butanol production from lignocellulose by co-culture of C. saccharoperbutylacetonicum with Phlebia sp. MG-60-P2 and its transformant should be pursued.
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Affiliation(s)
- Chu Luong Tri
- Department of Environment and Resource Science, Interdisciplinary Graduate School of Agriculture and Engineering, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan
| | - Ichiro Kamei
- Department of Environment and Resource Science, Interdisciplinary Graduate School of Agriculture and Engineering, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan; Department of Forest and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan.
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16
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Ferreira S, Pereira R, Wahl SA, Rocha I. Metabolic engineering strategies for butanol production in Escherichia coli. Biotechnol Bioeng 2020; 117:2571-2587. [PMID: 32374413 DOI: 10.1002/bit.27377] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 04/03/2020] [Accepted: 05/04/2020] [Indexed: 11/06/2022]
Abstract
The global market of butanol is increasing due to its growing applications as solvent, flavoring agent, and chemical precursor of several other compounds. Recently, the superior properties of n-butanol as a biofuel over ethanol have stimulated even more interest. (Bio)butanol is natively produced together with ethanol and acetone by Clostridium species through acetone-butanol-ethanol fermentation, at noncompetitive, low titers compared to petrochemical production. Different butanol production pathways have been expressed in Escherichia coli, a more accessible host compared to Clostridium species, to improve butanol titers and rates. The bioproduction of butanol is here reviewed from a historical and theoretical perspective. All tested rational metabolic engineering strategies in E. coli to increase butanol titers are reviewed: manipulation of central carbon metabolism, elimination of competing pathways, cofactor balancing, development of new pathways, expression of homologous enzymes, consumption of different substrates, and molecular biology strategies. The progress in the field of metabolic modeling and pathway generation algorithms and their potential application to butanol production are also summarized here. The main goals are to gather all the strategies, evaluate the respective progress obtained, identify, and exploit the outstanding challenges.
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Affiliation(s)
- Sofia Ferreira
- CEB-Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga, Portugal.,Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB-NOVA), Oeiras, Portugal
| | - Rui Pereira
- SilicoLife Lda, Braga, Portugal.,Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - S A Wahl
- Department of Biotechnology, Delft University of Technology, Delft, The Netherlands
| | - Isabel Rocha
- CEB-Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga, Portugal.,Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa (ITQB-NOVA), Oeiras, Portugal
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17
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Claessens B, Dubois N, Lefevere J, Mullens S, Cousin-Saint-Remi J, Denayer JFM. 3D-Printed ZIF-8 Monoliths for Biobutanol Recovery. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00453] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Benjamin Claessens
- Department of Chemical Engineering Vrije Universiteit Brussel, Elsene 1050, Belgium
| | - Nicolas Dubois
- Department of Chemical Engineering Vrije Universiteit Brussel, Elsene 1050, Belgium
| | - Jasper Lefevere
- Vlaams Instituut voor Technologische Ontwikkeling (VITO NV), Mol 2400, Belgium
| | - Steven Mullens
- Vlaams Instituut voor Technologische Ontwikkeling (VITO NV), Mol 2400, Belgium
| | | | - Joeri F. M. Denayer
- Department of Chemical Engineering Vrije Universiteit Brussel, Elsene 1050, Belgium
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18
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Yoo CG, Meng X, Pu Y, Ragauskas AJ. The critical role of lignin in lignocellulosic biomass conversion and recent pretreatment strategies: A comprehensive review. BIORESOURCE TECHNOLOGY 2020; 301:122784. [PMID: 31980318 DOI: 10.1016/j.biortech.2020.122784] [Citation(s) in RCA: 200] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 05/19/2023]
Abstract
Heterogeneity and rigidity of lignocellulose causing resistance to its deconstruction have provided technical and economic challenges in the current biomass conversion processes. Lignin has been considered as a crucial recalcitrance component in biomass utilization. An in-depth understanding of lignin properties and their influences on biomass conversion can provide clues to improve biomass utilization. Also, utilization of lignin can significantly increase the economic viability of biorefinery. Recent lignin-targeting pretreatments have aimed not only to overcome recalcitrance for biomass conversion but also to selectively fractionate lignin for lignin valorization. Numerous studies have been conducted in biomass characteristics and conversion technologies, and the role of lignin is critical for lignin valorization and biomass pretreatment development. This review provides a comprehensive review of lignin-related biomass characteristics, the impact of lignin on the biological conversion of biomass, and recent lignin-targeting pretreatment strategies. The desired lignin properties in biorefinery and future pretreatment directions are also discussed.
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Affiliation(s)
- Chang Geun Yoo
- Department of Paper and Bioprocess Engineering, State University of New York - College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Xianzhi Meng
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996-2200, USA
| | - Yunqiao Pu
- Biosciences Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA; Center for Bioenergy Innovation (CBI), Joint Institute for Biological Sciences, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA
| | - Arthur J Ragauskas
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996-2200, USA; Biosciences Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA; Center for Bioenergy Innovation (CBI), Joint Institute for Biological Sciences, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA; Department of Forestry, Wildlife and Fisheries, Center of Renewable Carbon, The University of Tennessee, Institute of Agriculture, Knoxville, TN 37996-2200, USA.
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19
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Ebrahimian F, Karimi K. Efficient biohydrogen and advanced biofuel coproduction from municipal solid waste through a clean process. BIORESOURCE TECHNOLOGY 2020; 300:122656. [PMID: 31893536 DOI: 10.1016/j.biortech.2019.122656] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/06/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
The cleanest form of energy, i.e., biohydrogen, and advanced biofuel, i.e., biobutanol, were produced from the organic fraction of municipal solid waste (OFMSW). Ethanol as a byproduct of this process was used for the pretreatment of this substrate, and this pretreatment was improved by other process byproducts, i.e., acetic acid and butyric acid. The pretreatment was conducted with 85% ethanol and 0-1% (w/w) acetic/butyric acid at 120 and 160 °C for 30 min. The pretreatment catalyzed by 1% (w/w) acetic acid at 120 °C resulted in a hydrolysate with 49.8 g/L total fermentable sugars, which was fermented to the highest overall yield of acetone, butanol, and ethanol (ABE) and hydrogen. Through this process, 114.1 g butanol, 43.8 g acetone, 15.1 g ethanol, 97.5 L hydrogen were obtained from each kg of OFMSW, producing 270 g ABE and 151 L H2 from each kg of substrate, corresponding to 6000 kJ energy production.
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Affiliation(s)
- Farinaz Ebrahimian
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
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20
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Experimental Design to Improve Cell Growth and Ethanol Production in Syngas Fermentation by Clostridium carboxidivorans. Catalysts 2020. [DOI: 10.3390/catal10010059] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Fermentation of gases from biomass gasification, named syngas, is an important alternative process to obtain biofuels. Sequential experimental designs were used to increase cell growth and ethanol production during syngas fermentation by Clostridium carboxidivorans. Based on ATCC (American Type Culture Collection) 2713 medium composition, it was possible to propose a best medium composition for cell growth, herein called TYA (Tryptone-Yeast extract-Arginine) medium and another one for ethanol production herein called TPYGarg (Tryptone-Peptone-Yeast extract-Glucose-Arginine) medium. In comparison to ATCC® 2713 medium, TYA increased cell growth by 77%, reducing 47% in cost and TPYGarg increased ethanol production more than four-times, and the cost was reduced by 31%. In 72 h of syngas fermentation in TPYGarg medium, 1.75-g/L of cells, 2.28 g/L of ethanol, and 0.74 g/L of butanol were achieved, increasing productivity for syngas fermentation.
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21
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Zhao C, Zhang Y, Li Y. Production of fuels and chemicals from renewable resources using engineered Escherichia coli. Biotechnol Adv 2019; 37:107402. [DOI: 10.1016/j.biotechadv.2019.06.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 05/23/2019] [Accepted: 06/02/2019] [Indexed: 02/06/2023]
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22
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Huang J, Du Y, Bao T, Lin M, Wang J, Yang ST. Production of n-butanol from cassava bagasse hydrolysate by engineered Clostridium tyrobutyricum overexpressing adhE2: Kinetics and cost analysis. BIORESOURCE TECHNOLOGY 2019; 292:121969. [PMID: 31415989 DOI: 10.1016/j.biortech.2019.121969] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/05/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
The production of biofuels such as butanol is usually limited by the availability of inexpensive raw materials and high substrate cost. Using food crops as feedstock in the biorefinery industry has been criticized for its competition with food supply, causing food shortage and increased food prices. In this study, cassava bagasse as an abundant, renewable, and inexpensive byproduct from the cassava starch industry was used for n-butanol production. Cassava bagasse hydrolysate containing mainly glucose was obtained after treatments with dilute acid and enzymes (glucoamylases and cellulases) and then supplemented with corn steep liquor for use as substrate in repeated-batch fermentation with engineered Clostridium tyrobutyricum CtΔack-adhE2 in a fibrous-bed bioreactor. Stable butanol production with high titer (>15.0 g/L), yield (>0.30 g/g), and productivity (~0.3 g/L∙h) was achieved, demonstrating the feasibility of an economically competitive process for n-butanol production from cassava bagasse for industrial application.
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Affiliation(s)
- Jin Huang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China; William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Yinming Du
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Teng Bao
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Meng Lin
- Bioprocessing Innovative Company, 4734 Bridle Path Ct., Dublin, OH 43017, USA
| | - Jufang Wang
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China
| | - Shang-Tian Yang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA.
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23
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Janka E, Carvajal D, Wang S, Bakke R, Dinamarca C. Treatment of Metformin-Containing Wastewater by a Hybrid Vertical Anaerobic Biofilm-Reactor (HyVAB). INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16214125. [PMID: 31717723 PMCID: PMC6862671 DOI: 10.3390/ijerph16214125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/07/2019] [Accepted: 10/21/2019] [Indexed: 11/16/2022]
Abstract
Several series of batch and continuous experiments were performed to investigate the removal of metformin and other contaminants from two wastewaters: wastewater I (WWI) containing 4 mg/L metformin and wastewater II (WWII) containing 110 g/L butanol. Biomethane potential (BMP) tests on WWII showed 77% of total chemical oxygen demand (tCOD = 110 g/L) degradability, and no apparent inhibition effects were observed. BMP tests on WWI showed an apparent inhibitory effect reflected in lower biogas production with increasing metformin concentration in the wastewater. Continuous flow hybrid vertical anaerobic biofilm (HyVAB®) experiments were consistent with the batch test findings. It was necessary to co-digest WWI (metformin) with WWII (easily degradable organics) to achieve complete metformin removal. After a period of adaptation, WWI and WWII co-digestion achieved up to 98% tCOD removal and 100% metformin removal. Most of the contaminants were removed in the anaerobic section of the HyVAB®, which implies that higher chemical oxygen demand (COD) loads than tested here are possible, given some optimization. The pilot reactor was able to manage organic loads of 11 g COD/d and above 10 mg/L metformin with a removal of 98% and 100% for tCOD and metformin, respectively.
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Affiliation(s)
- Eshetu Janka
- Department of Process, Energy and Environmental Technology, University of South-Eastern Norway, 3918 Porsgrunn, Norway; (E.J.); (D.C.); (R.B.)
| | - Diego Carvajal
- Department of Process, Energy and Environmental Technology, University of South-Eastern Norway, 3918 Porsgrunn, Norway; (E.J.); (D.C.); (R.B.)
| | - Shuai Wang
- Biowater Technology AS, Rambergvn 1, 3115 Tønsberg, Norway;
| | - Rune Bakke
- Department of Process, Energy and Environmental Technology, University of South-Eastern Norway, 3918 Porsgrunn, Norway; (E.J.); (D.C.); (R.B.)
| | - Carlos Dinamarca
- Department of Process, Energy and Environmental Technology, University of South-Eastern Norway, 3918 Porsgrunn, Norway; (E.J.); (D.C.); (R.B.)
- Correspondence:
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24
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Li J, Du Y, Bao T, Dong J, Lin M, Shim H, Yang ST. n-Butanol production from lignocellulosic biomass hydrolysates without detoxification by Clostridium tyrobutyricum Δack-adhE2 in a fibrous-bed bioreactor. BIORESOURCE TECHNOLOGY 2019; 289:121749. [PMID: 31323711 DOI: 10.1016/j.biortech.2019.121749] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/30/2019] [Accepted: 07/01/2019] [Indexed: 06/10/2023]
Abstract
Acetone-butanol-ethanol fermentation suffers from high substrate cost and low butanol titer and yield. In this study, engineered Clostridium tyrobutyricum CtΔack-adhE2 immobilized in a fibrous-bed bioreactor was used for butanol production from glucose and xylose present in the hydrolysates of low-cost lignocellulosic biomass including corn fiber, cotton stalk, soybean hull, and sugarcane bagasse. The biomass hydrolysates obtained after acid pretreatment and enzymatic hydrolysis were supplemented with corn steep liquor and used in repeated-batch fermentations. Butanol production with high titer (∼15 g/L), yield (∼0.3 g/g), and productivity (∼0.3 g/L∙h) was obtained from cotton stalk, soybean hull, and sugarcane bagasse hydrolysates, while corn fiber hydrolysate with higher inhibitor contents gave somewhat inferior results. The fermentation process was stable for long-term operation without any noticeable degeneration, demonstrating its potential for industrial application. A techno-economic analysis showed that n-butanol could be produced from lignocellulosic biomass using this novel fermentation process at ∼$2.5/gal for biofuel application.
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Affiliation(s)
- Jing Li
- College of Biology & Engineering, Hebei University of Economics & Business, Shijiazhuang 050061, PR China; William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Yinming Du
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Teng Bao
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Jie Dong
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Meng Lin
- Bioprocessing Innovative Company, 4734 Bridle Path Ct., Dublin, OH 43017, USA
| | - Hojae Shim
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA; Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Taipa, Macau SAR 999078, PR China
| | - Shang-Tian Yang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA.
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25
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Birgen C, Dürre P, Preisig HA, Wentzel A. Butanol production from lignocellulosic biomass: revisiting fermentation performance indicators with exploratory data analysis. BIOTECHNOLOGY FOR BIOFUELS 2019; 12:167. [PMID: 31297155 PMCID: PMC6598312 DOI: 10.1186/s13068-019-1508-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 06/19/2019] [Indexed: 05/09/2023]
Abstract
After just more than 100 years of history of industrial acetone-butanol-ethanol (ABE) fermentation, patented by Weizmann in the UK in 1915, butanol is again today considered a promising biofuel alternative based on several advantages compared to the more established biofuels ethanol and methanol. Large-scale fermentative production of butanol, however, still suffers from high substrate cost and low product titers and selectivity. There have been great advances the last decades to tackle these problems. However, understanding the fermentation process variables and their interconnectedness with a holistic view of the current scientific state-of-the-art is lacking to a great extent. To illustrate the benefits of such a comprehensive approach, we have developed a dataset by collecting data from 175 fermentations of lignocellulosic biomass and mixed sugars to produce butanol that reported during the past three decades of scientific literature and performed an exploratory data analysis to map current trends and bottlenecks. This review presents the results of this exploratory data analysis as well as main features of fermentative butanol production from lignocellulosic biomass with a focus on performance indicators as a useful tool to guide further research and development in the field towards more profitable butanol manufacturing for biofuel applications in the future.
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Affiliation(s)
- Cansu Birgen
- Department of Chemical Engineering, NTNU, 7491 Trondheim, Norway
| | - Peter Dürre
- Institute of Microbiology and Biotechnology, Ulm University, 89069 Ulm, Germany
| | - Heinz A. Preisig
- Department of Chemical Engineering, NTNU, 7491 Trondheim, Norway
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26
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Wang P, Zhang J, Feng J, Wang S, Guo L, Wang Y, Lee YY, Taylor S, McDonald T, Wang Y. Enhancement of acid re-assimilation and biosolvent production in Clostridium saccharoperbutylacetonicum through metabolic engineering for efficient biofuel production from lignocellulosic biomass. BIORESOURCE TECHNOLOGY 2019; 281:217-225. [PMID: 30822643 DOI: 10.1016/j.biortech.2019.02.096] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/19/2019] [Accepted: 02/20/2019] [Indexed: 05/12/2023]
Abstract
In the clostridial acetone-butanol-ethanol (ABE) fermentation, the intermediate acetate and butyrate are re-assimilated for solvent production. Here, key genes in ABE pathways in Clostridium saccharoperbutylacetonicum N1-4 were overexpressed to enhance acid re-assimilation and solvent production. With the overexpression of sol operon, acid re-assimilation was enhanced, and ABE production was increased by 20%, with ethanol production increased by six times but almost no increase in butanol production. To further drive carbon flux for C4 metabolites and ultimate butanol production, key genes including hbd, thl, crt and bcd in butanol production pathway were further overexpressed. Compared to the control, butanol, acetone and total ABE production in the new strain was increased by 8%, 18%, and 12.4%, respectively. Finally, simultaneous saccharification and fermentation was carried out using acetate-pretreated switchgrass. 15.4 g/L total ABE (with a yield of 0.31 g/g) was produced in both engineered strains, which was significantly higher than the control.
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Affiliation(s)
- Pixiang Wang
- Department of Biosystems Engineering, Auburn University, Auburn, AL 36849, USA
| | - Jie Zhang
- Department of Biosystems Engineering, Auburn University, Auburn, AL 36849, USA
| | - Jun Feng
- Department of Biosystems Engineering, Auburn University, Auburn, AL 36849, USA
| | - Shangjun Wang
- Department of Biosystems Engineering, Auburn University, Auburn, AL 36849, USA
| | - Liang Guo
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Yifen Wang
- Department of Biosystems Engineering, Auburn University, Auburn, AL 36849, USA; Center for Bioenergy and Bioproducts, Auburn University, Auburn, AL 36849, USA
| | - Yoon Y Lee
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA
| | - Steven Taylor
- Department of Biosystems Engineering, Auburn University, Auburn, AL 36849, USA; Center for Bioenergy and Bioproducts, Auburn University, Auburn, AL 36849, USA
| | - Timothy McDonald
- Department of Biosystems Engineering, Auburn University, Auburn, AL 36849, USA
| | - Yi Wang
- Department of Biosystems Engineering, Auburn University, Auburn, AL 36849, USA; Center for Bioenergy and Bioproducts, Auburn University, Auburn, AL 36849, USA.
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27
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Kumar C, Rana KB, Tripathi B. Effect of diesel-methanol-nitromethane blends combustion on VCR stationary CI engine performance and exhaust emissions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:6517-6531. [PMID: 30627996 DOI: 10.1007/s11356-018-04058-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 12/20/2018] [Indexed: 06/09/2023]
Abstract
The continuous rise in cost of fossil fuels and environmental pollution has attracted research in the area of clean alternative fuels for improving the performance and emission of internal combustion engines. In the present work, methanol and nitromethane were treated as a biofuel and investigations have been made to evaluate the feasibility of replacing diesel with a suitable diesel-methanol-nitromethane blend. For this, experimental investigations were carried out on a VCR diesel engine using diesel-methanol-nitromethane blends to determine the most favorable blending ratio and engine operating parameters for enhancing performance and reduce emissions. The best results of performance and emissions were observed with D-M5-NM2.5 blend (diesel 92.5%, methanol 5%, nitromethane 2.5%) at standard engine parameters. The improvement in engine performance (13% increment in BTE and 19.5% decrement in BSFC) and reduction in emission (smoke 26.47%, NOx 21.66%, and CO 14.28%) was found using D-M5-NM2.5 blend as compared to pure diesel at full load condition; however, HC emission was slightly increased by 10.71%. To find out the best suitable value of CR for D-M5-NM2.5 blend, experiments were further performed on different compression ratios by which higher compression ratio of 19.5 was found better under similar operating conditions. By increasing CR from 18.5 (standard) to 19.5, improvement in engine performance (BTE increased 3.8% and BSFC decreased 3.4%) and reduction in emission (smoke 10%, CO 16.67%, and HC 61.29%) were observed using D-M5-NM2.5 blend; however, NOx was found to be on slightly higher side with tolerable increment of 6.38%.
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Affiliation(s)
- Chandan Kumar
- Department of Mechanical Engineering, Rajasthan Technical University, Kota, 324010, India.
- Department of Mechanical Engineering, Swami Keshvanand Institute of Technology Management & Gramothan, Jaipur, 302017, India.
| | - Kunj Bihari Rana
- Department of Mechanical Engineering, Rajasthan Technical University, Kota, 324010, India
| | - Brajesh Tripathi
- Department of Mechanical Engineering, Rajasthan Technical University, Kota, 324010, India
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28
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Kolesinska B, Fraczyk J, Binczarski M, Modelska M, Berlowska J, Dziugan P, Antolak H, Kaminski ZJ, Witonska IA, Kregiel D. Butanol Synthesis Routes for Biofuel Production: Trends and Perspectives. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E350. [PMID: 30678076 PMCID: PMC6384976 DOI: 10.3390/ma12030350] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 01/18/2019] [Accepted: 01/21/2019] [Indexed: 12/05/2022]
Abstract
Butanol has similar characteristics to gasoline, and could provide an alternative oxygenate to ethanol in blended fuels. Butanol can be produced either via the biotechnological route, using microorganisms such as clostridia, or by the chemical route, using petroleum. Recently, interest has grown in the possibility of catalytic coupling of bioethanol into butanol over various heterogenic systems. This reaction has great potential, and could be a step towards overcoming the disadvantages of bioethanol as a sustainable transportation fuel. This paper summarizes the latest research on butanol synthesis for the production of biofuels in different biotechnological and chemical ways; it also compares potentialities and limitations of these strategies.
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Affiliation(s)
- Beata Kolesinska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
| | - Justyna Fraczyk
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
| | - Michal Binczarski
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
| | - Magdalena Modelska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
| | - Joanna Berlowska
- Institute of Fermentation Technology and Microbiology, Faculty of Biochemistry and Food Sciences, Lodz University of Technology, Wolczanska 171/173, 90-924 Lodz, Poland.
| | - Piotr Dziugan
- Institute of Fermentation Technology and Microbiology, Faculty of Biochemistry and Food Sciences, Lodz University of Technology, Wolczanska 171/173, 90-924 Lodz, Poland.
| | - Hubert Antolak
- Institute of Fermentation Technology and Microbiology, Faculty of Biochemistry and Food Sciences, Lodz University of Technology, Wolczanska 171/173, 90-924 Lodz, Poland.
| | - Zbigniew J Kaminski
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
| | - Izabela A Witonska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
| | - Dorota Kregiel
- Institute of Fermentation Technology and Microbiology, Faculty of Biochemistry and Food Sciences, Lodz University of Technology, Wolczanska 171/173, 90-924 Lodz, Poland.
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Abstract
Renewable biofuel represents one of the answers to solving the energy crisis and climate change problems. Butanol produced naturally by clostridia has superior liquid fuel characteristics and thus has the potential to replace gasoline. Due to the lack of efficient genetic manipulation tools, however, clostridial strain improvement has been slower than improvement of other microorganisms. Furthermore, fermentation coproducing various by-products requires costly downstream processing for butanol purification. Here, we report the results of enzyme engineering of aldehyde/alcohol dehydrogenase (AAD) to increase butanol selectivity. A metabolically engineered Clostridium acetobutylicum strain expressing the engineered aldehyde/alcohol dehydrogenase gene was capable of producing butanol at a high level of selectivity. Butanol production by Clostridium acetobutylicum is accompanied by coproduction of acetone and ethanol, which reduces the yield of butanol and increases the production cost. Here, we report development of several clostridial aldehyde/alcohol dehydrogenase (AAD) variants showing increased butanol selectivity by a series of design and analysis procedures, including random mutagenesis, substrate specificity feature analysis, and structure-based butanol selectivity design. The butanol/ethanol ratios (B/E ratios) were dramatically increased to 17.47 and 15.91 g butanol/g ethanol for AADF716L and AADN655H, respectively, which are 5.8-fold and 5.3-fold higher than the ratios obtained with the wild-type AAD. The much-increased B/E ratio obtained was due to the dramatic reduction in ethanol production (0.59 ± 0.01 g/liter) that resulted from engineering the substrate binding chamber and the active site of AAD. This protein design strategy can be applied generally for engineering enzymes to alter substrate selectivity.
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30
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Luo H, Zheng P, Xie F, Yang R, Liu L, Han S, Zhao Y, Bilal M. Co-production of solvents and organic acids in butanol fermentation by Clostridium acetobutylicum in the presence of lignin-derived phenolics. RSC Adv 2019; 9:6919-6927. [PMID: 35518483 PMCID: PMC9061099 DOI: 10.1039/c9ra00325h] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 02/21/2019] [Indexed: 12/16/2022] Open
Abstract
Co-production of solvents (butanol, acetone, and ethanol) and organic acids (butyrate and acetate) by Clostridium acetobutylicum using lignocellulosic biomass as a substrate could further enlarge the application scope of butanol fermentation. This is mainly because solvents and organic acids could be used for production of fine chemicals such as butyl butyrate, butyl oleate, etc. However, many phenolic fermentation inhibitors are formed during the pretreatment process because of lignin degradation. The present study investigated the effects of five typical lignin-derived phenolics on the biosynthesis of solvents and organic acids in C. acetobutylicum ATCC 824. Results obtained in 100 mL anaerobic bottles indicated that butanol concentration was enhanced from 10.29 g L−1 to 11.36 g L−1 by the addition of 0.1 g L−1 vanillin. Subsequently, a pH-control strategy was proposed in a 5 L anaerobic fermenter to alleviate the “acid crash” phenomenon and improve butanol fermentation performance, simultaneously. Notably, organic acid concentration was enhanced from 6.38 g L−1 (control) to a high level of 9.21–12.57 g L−1 with vanillin or/and vanillic acid addition (0.2 g L−1) under the pH-control strategy. Furthermore, the butyrate/butanol ratio reached the highest level of 0.80 g g−1 with vanillin/vanillic acid co-addition, and solvent concentration reached 13.85 g L−1, a comparable level to the control (13.69 g L−1). The effectiveness and robustness of the strategy for solvent and organic acid co-production was also verified under five typical phenolic environments. In conclusion, these results suggest that the proposed process strategy would potentially promote butanol fermentative products from renewable biomass. Lignin-derived phenolics enhance solvent and organic acid biosynthesis in butanol fermentation by Clostridium acetobutylicum ATCC 824.![]()
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Affiliation(s)
- Hongzhen Luo
- School of Life Science and Food Engineering
- Huaiyin Institute of Technology
- Huaian 223003
- China
| | - Panli Zheng
- School of Life Science and Food Engineering
- Huaiyin Institute of Technology
- Huaian 223003
- China
| | - Fang Xie
- School of Life Science and Food Engineering
- Huaiyin Institute of Technology
- Huaian 223003
- China
| | - Rongling Yang
- School of Life Science and Food Engineering
- Huaiyin Institute of Technology
- Huaian 223003
- China
| | - Lina Liu
- School of Life Science and Food Engineering
- Huaiyin Institute of Technology
- Huaian 223003
- China
| | - Shuo Han
- Department of Chemistry
- Missouri University of Science and Technology
- Rolla
- USA
| | - Yuping Zhao
- School of Life Science and Food Engineering
- Huaiyin Institute of Technology
- Huaian 223003
- China
| | - Muhammad Bilal
- School of Life Science and Food Engineering
- Huaiyin Institute of Technology
- Huaian 223003
- China
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31
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Wang J, Yang H, Qi G, Liu X, Gao X, Shen Y. Effect of lignocellulose-derived weak acids on butanol production byClostridium acetobutylicumunder different pH adjustment conditions. RSC Adv 2019; 9:1967-1975. [PMID: 35516100 PMCID: PMC9059770 DOI: 10.1039/c8ra08678h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 12/13/2018] [Indexed: 11/23/2022] Open
Abstract
The effects of formic acid, acetic acid and levulinic acid on acetone–butanol–ethanol (ABE) fermentation under different pH adjustment conditions were investigated using Clostridium acetobutylicum as the fermentation strain. CaCO3 supplementation can alleviate the inhibitory effect of formic acid on ABE production. The ABE titers from the medium containing 0.5 g L−1 formic acid with pH adjusted by CaCO3 and KOH were 11.08 g L−1 and 1.04 g L−1, which reached 64.8% and 6.3% of the control group, respectively. Compared with CaCO3 pH adjustment, fermentation results with higher ABE titers and yields were obtained from the medium containing acetic acid or levulinic acid, when the pH was adjusted by KOH. When formic acid, acetic acid, and levulinic acid co-existed in the medium, better fermentation result was achieved by adjusting the pH by CaCO3. Moreover, 12.50 g L−1 ABE was obtained from the medium containing 2.0 g L−1 acetic acid, 0.4 g L−1 formic acid, and 1.0 g L−1 levulinic acid as compared to 3.98 g L−1 ABE obtained from the same medium when the pH was adjusted by KOH. CaCO3 supplementation is a more favorable pH adjustment method for ABE medium preparation from lignocellulosic hydrolysate. The effects of formic acid, acetic acid and levulinic acid on acetone–butanol–ethanol (ABE) fermentation under different pH adjustment conditions were investigated using Clostridium acetobutylicum as the fermentation strain.![]()
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Affiliation(s)
- Jianhui Wang
- National Research Base of Intelligent Manufacturing Service
- Chongqing Technology and Business University
- Chongqing 400067
- China
| | - Hongyan Yang
- College of Environment and Resources
- Chongqing Technology and Business University
- Chongqing 400067
- China
| | - Gaoxaing Qi
- National Research Base of Intelligent Manufacturing Service
- Chongqing Technology and Business University
- Chongqing 400067
- China
| | - Xuecheng Liu
- College of Environment and Resources
- Chongqing Technology and Business University
- Chongqing 400067
- China
| | - Xu Gao
- National Research Base of Intelligent Manufacturing Service
- Chongqing Technology and Business University
- Chongqing 400067
- China
| | - Yu Shen
- National Research Base of Intelligent Manufacturing Service
- Chongqing Technology and Business University
- Chongqing 400067
- China
- College of Environment and Resources
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32
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Ahlawat S, Kaushal M, Palabhanvi B, Muthuraj M, Goswami G, Das D. Nutrient modulation based process engineering strategy for improved butanol production from Clostridium acetobutylicum. Biotechnol Prog 2018; 35:e2771. [PMID: 30592566 DOI: 10.1002/btpr.2771] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 12/22/2018] [Indexed: 01/08/2023]
Abstract
The present study demonstrates a process engineering strategy to achieve high butanol titer and productivity from wild type Clostridium acetobutylicum MTCC 11274. In the first step, two different media were optimized with the objectives of maximizing the biomass and butanol productivity, respectively. In the next step, attributes of these two media compositions were integrated to design a two-stage fed-batch process which resulted in maximal butanol productivity of 0.55 g L-1 h-1 with titer of 13.1 g L-1 . Further, two-stage fed-batch process along with combinatorial use of magnesium limitation and calcium supplementation resulted in the highest butanol titer and productivity of 16.5 g L-1 and 0.59 g L-1 h-1 , respectively. Finally, integration of the process with gas stripping and modulation of feeding duration resulted in a cumulative butanol titer of 54.3 g L-1 and productivity of 0.58 g L-1 h-1 . The strategy opens up possibility of developing a viable butanol bioprocess. © 2019 American Institute of Chemical Engineers Biotechnol. Prog., 35: e2771, 2019.
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Affiliation(s)
- Saumya Ahlawat
- Dept. of Biosciences & Bioengineering, Indian Inst. of Technology, Guwahati, Assam, 781039, India.,DBT-PAN IIT Centre for Bioenergy, Indian Inst. of Technology, Guwahati, Assam, 781039, India
| | - Mehak Kaushal
- Dept. of Biosciences & Bioengineering, Indian Inst. of Technology, Guwahati, Assam, 781039, India.,DBT-PAN IIT Centre for Bioenergy, Indian Inst. of Technology, Guwahati, Assam, 781039, India
| | - Basavaraj Palabhanvi
- Dept. of Biosciences & Bioengineering, Indian Inst. of Technology, Guwahati, Assam, 781039, India.,DBT-PAN IIT Centre for Bioenergy, Indian Inst. of Technology, Guwahati, Assam, 781039, India
| | - Muthusivaramapandian Muthuraj
- Dept. of Biosciences & Bioengineering, Indian Inst. of Technology, Guwahati, Assam, 781039, India.,DBT-PAN IIT Centre for Bioenergy, Indian Inst. of Technology, Guwahati, Assam, 781039, India
| | - Gargi Goswami
- Dept. of Biosciences & Bioengineering, Indian Inst. of Technology, Guwahati, Assam, 781039, India.,DBT-PAN IIT Centre for Bioenergy, Indian Inst. of Technology, Guwahati, Assam, 781039, India
| | - Debasish Das
- Dept. of Biosciences & Bioengineering, Indian Inst. of Technology, Guwahati, Assam, 781039, India.,DBT-PAN IIT Centre for Bioenergy, Indian Inst. of Technology, Guwahati, Assam, 781039, India
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Theiri M, Chadjaa H, Marinova M, Jolicoeur M. Combining chemical flocculation and bacterial co-culture of Cupriavidus taiwanensis and Ureibacillus thermosphaericus to detoxify a hardwood hemicelluloses hydrolysate and enable acetone-butanol-ethanol fermentation leading to butanol. Biotechnol Prog 2018; 35:e2753. [PMID: 30468318 DOI: 10.1002/btpr.2753] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 11/19/2018] [Accepted: 11/20/2018] [Indexed: 12/25/2022]
Abstract
Butanol, a fuel with better characteristics than ethanol, can be produced via acetone-butanol-ethanol (ABE) fermentation using lignocellulosic biomass as a carbon source. However, many inhibitors present in the hydrolysate limit the yield of the fermentation process. In this work, a detoxification technology combining flocculation and biodetoxification within a bacterial co-culture composed of Ureibacillus thermosphaericus and Cupriavidus taiwanensis is presented for the first time. Co-culture-based strategies to detoxify filtered and unfiltered hydrolysates have been investigated. The best results of detoxification were obtained for a two-step approach combining flocculation to biodetoxification. This sequential process led to a final phenolic compounds concentration of 1.4 g/L, a value close to the minimum inhibitory level observed for flocculated hydrolysate (1.1 g/L). The generated hydrolysate was then fermented with Clostridium acetobutylicum ATCC 824 for 120 h. A final butanol production of 8 g/L was obtained, although the detoxified hydrolysate was diluted to reach 0.3 g/L of phenolics to ensure noninhibitory conditions. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 35: e2753, 2019.
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Affiliation(s)
- Mariem Theiri
- Research Laboratory in Applied Metabolic Engineering, Dept. of Chemical Engineering, École Polytechnique de Montréal, J.-A. -Bombardier Pavilion, 2900 Édouard-Montpetit Blvd., Montréal, QC, H3T 1J4, Canada.,Centre National en Électrochimie et en Technologies Environnementales, 5230, Boulevard Royal, Shawinigan, QC, G9N 4R6, Canada
| | - Hassan Chadjaa
- Centre National en Électrochimie et en Technologies Environnementales, 5230, Boulevard Royal, Shawinigan, QC, G9N 4R6, Canada
| | - Mariya Marinova
- Dept. of Chemistry and Chemical Engineering, Royal Military College of Canada, 13 General Crerar Crescen Kingston, ON, K7K 7B4, Canada
| | - Mario Jolicoeur
- Research Laboratory in Applied Metabolic Engineering, Dept. of Chemical Engineering, École Polytechnique de Montréal, J.-A. -Bombardier Pavilion, 2900 Édouard-Montpetit Blvd., Montréal, QC, H3T 1J4, Canada
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Amiri H, Karimi K. Pretreatment and hydrolysis of lignocellulosic wastes for butanol production: Challenges and perspectives. BIORESOURCE TECHNOLOGY 2018; 270:702-721. [PMID: 30195696 DOI: 10.1016/j.biortech.2018.08.117] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/27/2018] [Accepted: 08/29/2018] [Indexed: 06/08/2023]
Abstract
Butanol is acknowledged as a drop-in biofuel that can be used in the existing transportation infrastructure, addressing the needs for sustainable liquid fuel. However, before becoming a thoughtful alternative for fossil fuel, butanol should be produced efficiently from a widely-available, renewable, and cost-effective source. In this regard, lignocellulosic materials, the main component of organic wastes from agriculture, forestry, municipalities, and even industries seems to be the most promising source. The butanol-producing bacteria, i.e., Clostridia sp., can uptake a wide range of hexoses, pentoses, and oligomers obtained from hydrolysis of cellulose and hemicellulose content of lignocelluloses. The present work is dedicated to reviewing different processes containing pretreatment and hydrolysis of hemicellulose and cellulose developed for preparing fermentable hydrolysates for biobutanol production.
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Affiliation(s)
- Hamid Amiri
- Department of Biotechnology, Faculty of Advanced Sciences and Technologies, University of Isfahan, Isfahan 81746-73441, Iran; Environmental Research Institute, University of Isfahan, Isfahan 81746-73441, Iran.
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
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35
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Hijosa-Valsero M, Paniagua-García AI, Díez-Antolínez R. Industrial potato peel as a feedstock for biobutanol production. N Biotechnol 2018; 46:54-60. [PMID: 30044962 DOI: 10.1016/j.nbt.2018.07.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 06/28/2018] [Accepted: 07/21/2018] [Indexed: 01/01/2023]
Abstract
Potato peel from a snack factory was assessed as possible feedstock for biobutanol production. This lignocellulosic biomass was subjected to various physicochemical pretreatments (autohydrolysis and hydrolysis with dilute acids, alkalis, organic solvents or surfactants) under different conditions of time, temperature and reagent concentrations, in order to favour the release of sugars and reduce the generation of fermentation inhibitors. Thereafter, the pretreated potato peel was treated enzymatically to complete the hydrolysis. Autohydrolysis at 140 °C and 56 min was the most effective pretreatment, releasing 37.9 ± 2.99 g/L sugars from an aqueous mixture containing 10% (w/w) potato peel (sugar recovery efficiency 55 ± 13%). The fermentability of the hydrolysates was checked with six strains of Clostridium beijerinckii, C. acetobutylicum, C. saccharobutylicum and C. saccaroperbutylacetonicum. C. saccharobutylicum DSM 13864 produced 2.1 g/L acetone, 7.6 g/L butanol and 0.6 g/L ethanol in 96 h (0.186 gB/gS), whereas C. saccharoperbutylacetonicum DSM 2152 generated 1.8 g/L acetone, 8.1 g/L butanol and 1.0 g/L ethanol in 120 h (0.203 gB/gS). Detoxification steps of the hydrolysate before fermentation were not necessary. Potato peel may be an interesting feedstock for biorefineries focused on butanol production.
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Affiliation(s)
- María Hijosa-Valsero
- Biofuels and Bioproducts Research Centre, Institute of Agricultural Technology of Castile and Leon (ITACyL), Villarejo de Órbigo, E-24358 León, Spain.
| | - Ana I Paniagua-García
- Biofuels and Bioproducts Research Centre, Institute of Agricultural Technology of Castile and Leon (ITACyL), Villarejo de Órbigo, E-24358 León, Spain; Chemical and Environmental Bioprocess Engineering, Institute of Natural Resources (IRENA), University of Leon, Avenida de Portugal 42, E-24071 León, Spain.
| | - Rebeca Díez-Antolínez
- Biofuels and Bioproducts Research Centre, Institute of Agricultural Technology of Castile and Leon (ITACyL), Villarejo de Órbigo, E-24358 León, Spain; Chemical and Environmental Bioprocess Engineering, Institute of Natural Resources (IRENA), University of Leon, Avenida de Portugal 42, E-24071 León, Spain.
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36
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Solid-liquid phase equilibria, excess molar volume, and molar refraction deviation for the mixtures of ethanoic acid with propanoic, butanoic, and pentanoic acid. KOREAN J CHEM ENG 2018. [DOI: 10.1007/s11814-018-0072-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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37
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Buendia-Kandia F, Rondags E, Framboisier X, Mauviel G, Dufour A, Guedon E. Diauxic growth of Clostridium acetobutylicum ATCC 824 when grown on mixtures of glucose and cellobiose. AMB Express 2018; 8:85. [PMID: 29789978 PMCID: PMC5964051 DOI: 10.1186/s13568-018-0615-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 05/12/2018] [Indexed: 11/10/2022] Open
Abstract
Clostridium acetobutylicum, a promising organism for biomass transformation, has the capacity to utilize a wide variety of carbon sources. During pre-treatments of (ligno) cellulose through thermic and/or enzymatic processes, complex mixtures of oligo saccharides with beta 1,4-glycosidic bonds can be produced. In this paper, the capability of C. acetobutylicum to ferment glucose and cellobiose, alone and in mixtures was studied. Kinetic studies indicated that a diauxic growth occurs when both glucose and cellobiose are present in the medium. In mixtures, D-glucose is the preferred substrate even if cells were pre grown with cellobiose as the substrate. After the complete consumption of glucose, the growth kinetics exhibits an adaptation time, of few hours, before to be able to use cellobiose. Because of this diauxic phenomenon, the nature of the carbon source deriving from a cellulose hydrolysis pre-treatment could strongly influence the kinetic performances of a fermentation process with C. acetobutylicum.
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38
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Wen H, Chen H, Cai D, Gong P, Zhang T, Wu Z, Gao H, Li Z, Qin P, Tan T. Integrated in situ gas stripping-salting-out process for high-titer acetone-butanol-ethanol production from sweet sorghum bagasse. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:134. [PMID: 29760776 PMCID: PMC5944105 DOI: 10.1186/s13068-018-1137-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 05/02/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND The production of biobutanol from renewable biomass resources is attractive. The energy-intensive separation process and low-titer solvents production are the key constraints on the economy-feasible acetone-butanol-ethanol (ABE) production by fermentation. To decrease energy consumption and increase the solvents concentration, a novel two-stage gas stripping-salting-out system was established for effective ABE separation from the fermentation broth using sweet sorghum bagasse as feedstock. RESULTS The ABE condensate (143.6 g/L) after gas stripping, the first-stage separation, was recovered and introduced to salting-out process as the second-stage. K4P2O7 and K2HPO4 were used, respectively. The effect of saturated salt solution temperature on final ABE concentration was also investigated. The results showed high ABE recovery (99.32%) and ABE concentration (747.58 g/L) when adding saturated K4P2O7 solution at 323.15 K and 3.0 of salting-out factor. On this condition, the energy requirement of the downstream distillation process was 3.72 MJ/kg of ABE. CONCLUSIONS High-titer cellulosic ABE production was separated from the fermentation broth by the novel two-stage gas stripping-salting-out process. The process was effective, which reduced the downstream process energy requirement significantly.
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Affiliation(s)
- Hao Wen
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029 People’s Republic of China
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 People’s Republic of China
| | - Huidong Chen
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029 People’s Republic of China
- Center for Process Simulation & Optimization, Beijing University of Chemical Technology, Beijing, 100029 People’s Republic of China
| | - Di Cai
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029 People’s Republic of China
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 People’s Republic of China
| | - Peiwen Gong
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 People’s Republic of China
| | - Tao Zhang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 People’s Republic of China
| | - Zhichao Wu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 People’s Republic of China
| | - Heting Gao
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 People’s Republic of China
| | - Zhuangzhuang Li
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029 People’s Republic of China
| | - Peiyong Qin
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029 People’s Republic of China
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 People’s Republic of China
| | - Tianwei Tan
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029 People’s Republic of China
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029 People’s Republic of China
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Performance and Regulated/Unregulated Emission Evaluation of a Spark Ignition Engine Fueled with Acetone–Butanol–Ethanol and Gasoline Blends. ENERGIES 2018. [DOI: 10.3390/en11051121] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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41
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Hou L, Du W, Qu M, Wang X, Wang S, Shi S, Sun Y, Gao J, Xu J. Self-Assembled Nickel Nanoparticles Supported on Mesoporous Aluminum Oxide for Selective Hydrogenation of Isophorone. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Leilei Hou
- School of Textile and Material Engineering; Dalian Polytechnic University; Dalian 116034 People's Republic of China
- State Key Laboratory of Catalysis; Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 People's Republic of China
| | - Wenqiang Du
- State Key Laboratory of Catalysis; Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 People's Republic of China
| | - Minjie Qu
- School of Textile and Material Engineering; Dalian Polytechnic University; Dalian 116034 People's Republic of China
| | - Xinhong Wang
- School of Textile and Material Engineering; Dalian Polytechnic University; Dalian 116034 People's Republic of China
| | - Shuwei Wang
- School of Textile and Material Engineering; Dalian Polytechnic University; Dalian 116034 People's Republic of China
| | - Song Shi
- State Key Laboratory of Catalysis; Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 People's Republic of China
| | - Ying Sun
- State Key Laboratory of Catalysis; Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 People's Republic of China
| | - Jin Gao
- State Key Laboratory of Catalysis; Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 People's Republic of China
| | - Jie Xu
- State Key Laboratory of Catalysis; Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 People's Republic of China
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Biswas S, Katiyar R, Gurjar BR, Pruthi V. Role of Different Feedstocks on the Butanol Production Through Microbial and Catalytic Routes. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2018. [DOI: 10.1515/ijcre-2016-0215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Among the renewable fuels, butanol has become an attractive, economic and sustainable choice because of cost elevation in petroleum fuel, diminishing the oil reserves and an increase of green house effect. Butanol can be derived from renewable sources by using the natural bio-resources and agro-wastes such as orchard wastes, peanut wastes, wheat straw, barley straw and grasses via Acetone Butanol Ethanol (ABE) process. On the other hand, butanol can be directly formed from chemical route involving catalysts also such as from ethanol through aldol condensation. This review presents extensive evaluation for the production of butanol deploying microbial and catalytic routes.
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Affiliation(s)
- Shalini Biswas
- Centre for Transportation Systems , Indian Institute of Technology Roorkee , Roorkee , Uttarakhand 247667 , India
| | - Richa Katiyar
- Centre for Transportation Systems , Indian Institute of Technology Roorkee , Roorkee , Uttarakhand 247667 , India
| | - B. R. Gurjar
- Centre for Transportation Systems , Indian Institute of Technology Roorkee , Roorkee , Uttarakhand 247667 , India
| | - Vikas Pruthi
- Centre for Transportation Systems , Indian Institute of Technology Roorkee , Roorkee , Uttarakhand 247667 , India
- Department of Biotechnology , Indian Institute of Technology Roorkee , Roorkee , Uttarakhand 247667 , India
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Sun C, Zhang S, Xin F, Shanmugam S, Wu YR. Genomic comparison of Clostridium species with the potential of utilizing red algal biomass for biobutanol production. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:42. [PMID: 29467820 PMCID: PMC5815214 DOI: 10.1186/s13068-018-1044-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 02/05/2018] [Indexed: 05/17/2023]
Abstract
BACKGROUND Sustainable biofuels, which are widely considered as an attractive alternative to fossil fuels, can be generated by utilizing various biomass from the environment. Marine biomass, such as red algal biomass, is regarded as one potential renewable substrate source for biofuels conversion due to its abundance of fermentable sugars (e.g., galactose). Previous studies focused on the enhancement of biofuels production from different Clostridium species; however, there has been limited investigation into their metabolic pathways, especially on the conversion of biofuels from galactose, via whole genomic comparison and evolutionary analysis. RESULTS Two galactose-utilizing Clostridial strains were examined and identified as Clostridium acetobutylicum strain WA and C. beijerinckii strain WB. Via the genomic sequencing of both strains, the comparison of the whole genome together with the relevant protein prediction of 33 other Clostridium species was established to reveal a clear genome profile based upon various genomic features. Among them, five representative strains, including C. beijerinckii NCIMB14988, C. diolis DSM 15410, C. pasteurianum BC1, strain WA and WB, were further discussed to demonstrate the main differences among their respective metabolic pathways, especially in their carbohydrate metabolism. The metabolic pathways involved in the generation of biofuels and other potential products (e.g., riboflavin) were also reconstructed based on the utilization of marine biomass. Finally, a batch fermentation process was performed to verify the fermentative products from strains WA and WB using 60 g/L of galactose, which is the main hydrolysate from algal biomass. It was observed that strain WA and WB could produce up to 16.98 and 12.47 g/L of biobutanol, together with 21,560 and 10,140 mL/L biohydrogen, respectively. CONCLUSIONS The determination of the production of various biofuels by both strains WA and WB and their genomic comparisons with other typical Clostridium species on the analysis of various metabolic pathways was presented. Through the identification of their metabolic pathways, which are involved in the conversion of galactose into various potential products, such as biobutanol, the obtained results extend the current insight into the potential capability of utilizing marine red algal biomass and provide a systematic investigation into the relationship between this genus and the generation of sustainable bioenergy.
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Affiliation(s)
- Chongran Sun
- Department of Biology, Shantou University, Shantou, 515063 Guangdong China
| | - Shuangfei Zhang
- Department of Biology, Shantou University, Shantou, 515063 Guangdong China
| | - Fengxue Xin
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063 Guangdong China
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816 Jiangsu China
| | | | - Yi-Rui Wu
- Department of Biology, Shantou University, Shantou, 515063 Guangdong China
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063 Guangdong China
- STU-UNIVPM Joint Algal Research Center, Shantou University, Shantou, 515063 Guangdong China
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Grisales Diaz VH, Olivar Tost G. Energy efficiency of acetone, butanol, and ethanol (ABE) recovery by heat-integrated distillation. Bioprocess Biosyst Eng 2017; 41:395-405. [DOI: 10.1007/s00449-017-1874-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 12/01/2017] [Indexed: 11/24/2022]
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45
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Wang Y, Ho SH, Yen HW, Nagarajan D, Ren NQ, Li S, Hu Z, Lee DJ, Kondo A, Chang JS. Current advances on fermentative biobutanol production using third generation feedstock. Biotechnol Adv 2017; 35:1049-1059. [DOI: 10.1016/j.biotechadv.2017.06.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 05/08/2017] [Accepted: 06/01/2017] [Indexed: 12/23/2022]
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46
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Arantes AL, Alves JI, Stams AJM, Alves MM, Sousa DZ. Enrichment of syngas-converting communities from a multi-orifice baffled bioreactor. Microb Biotechnol 2017; 11:639-646. [PMID: 29160026 PMCID: PMC6011948 DOI: 10.1111/1751-7915.12864] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 08/31/2017] [Accepted: 09/03/2017] [Indexed: 12/04/2022] Open
Abstract
The substitution of natural gas by renewable biomethane is an interesting option to reduce global carbon footprint. Syngas fermentation has potential in this context, as a diverse range of low‐biodegradable materials that can be used. In this study, anaerobic sludge acclimatized to syngas in a multi‐orifice baffled bioreactor (MOBB) was used to start enrichments with CO. The main goals were to identify the key players in CO conversion and evaluate potential interspecies metabolic interactions conferring robustness to the process. Anaerobic sludge incubated with 0.7 × 105 Pa CO produced methane and acetate. When the antibiotics vancomycin and/or erythromycin were added, no methane was produced, indicating that direct methanogenesis from CO did not occur. Acetobacterium and Sporomusa were the predominant bacterial species in CO‐converting enrichments, together with methanogens from the genera Methanobacterium and Methanospirillum. Subsequently, a highly enriched culture mainly composed of a Sporomusa sp. was obtained that could convert up to 1.7 × 105 Pa CO to hydrogen and acetate. These results attest the role of Sporomusa species in the enrichment as primary CO utilizers and show their importance for methane production as conveyers of hydrogen to methanogens present in the culture.
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Affiliation(s)
- Ana L Arantes
- Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal.,Laboratory of Microbiology, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Joana I Alves
- Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal
| | - Alfons J M Stams
- Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal.,Laboratory of Microbiology, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - M Madalena Alves
- Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal
| | - Diana Z Sousa
- Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal.,Laboratory of Microbiology, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
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47
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Biobutanol production from apple pomace: the importance of pretreatment methods on the fermentability of lignocellulosic agro-food wastes. Appl Microbiol Biotechnol 2017; 101:8041-8052. [DOI: 10.1007/s00253-017-8522-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/24/2017] [Accepted: 09/07/2017] [Indexed: 01/14/2023]
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48
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Nayyar A, Sharma D, Soni SL, Mathur A. Experimental investigation of performance and emissions of a VCR diesel engine fuelled with n-butanol diesel blends under varying engine parameters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:20315-20329. [PMID: 28702919 DOI: 10.1007/s11356-017-9599-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 06/20/2017] [Indexed: 06/07/2023]
Abstract
The continuous rise in the cost of fossil fuels as well as in environmental pollution has attracted research in the area of clean alternative fuels for improving the performance and emissions of internal combustion (IC) engines. In the present work, n-butanol is treated as a bio-fuel and investigations have been made to evaluate the feasibility of replacing diesel with a suitable n-butanol-diesel blend. In the current research, an experimental investigation was carried out on a variable compression ratio CI engine with n-butanol-diesel blends (10-25% by volume) to determine the optimum blending ratio and optimum operating parameters of the engine for reduced emissions. The best results of performance and emissions were observed for 20% n-butanol-diesel blend (B20) at a higher compression ratio as compared to diesel while keeping the other parameters unchanged. The observed deterioration in engine performance was within tolerable limits. The reductions in smoke, nitrogen oxides (NO x ), and carbon monoxide (CO) were observed up to 56.52, 17.19, and 30.43%, respectively, for B20 in comparison to diesel at rated power. However, carbon dioxide (CO2) and hydrocarbons (HC) were found to be higher by 17.58 and 15.78%, respectively, for B20. It is concluded that n-butanol-diesel blend would be a potential fuel to control emissions from diesel engines. Graphical abstract ᅟ.
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Affiliation(s)
- Ashish Nayyar
- Department of Mechanical Engineering, Swami Keshvanand Institute of Technology, Management & Gramothan, Jaipur, India.
- Department of Mechanical Engineering, Malaviya National Institute of Technology Jaipur, Jaipur, India.
| | - Dilip Sharma
- Department of Mechanical Engineering, Malaviya National Institute of Technology Jaipur, Jaipur, India
| | - Shyam Lal Soni
- Department of Mechanical Engineering, Malaviya National Institute of Technology Jaipur, Jaipur, India
| | - Alok Mathur
- Department of Mechanical Engineering, Swami Keshvanand Institute of Technology, Management & Gramothan, Jaipur, India
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49
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Cai D, Chen C, Zhang C, Wang Y, Wen H, Qin P. Fed-batch fermentation with intermittent gas stripping using immobilized Clostridium acetobutylicum for biobutanol production from corn stover bagasse hydrolysate. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2017.05.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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50
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Johnravindar D, Murugesan K, Wong JWC, Elangovan N. Waste-to-biofuel: production of biobutanol from sago waste residues. ENVIRONMENTAL TECHNOLOGY 2017; 38:1725-1734. [PMID: 28091177 DOI: 10.1080/09593330.2017.1283362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 01/12/2017] [Indexed: 06/06/2023]
Abstract
The main concern of extensive production of biobutanol has been associated with the high cost of the substrate and the relatively low tolerance of Clostridia to biobutanol production. In this study, the use of fermentable cassava waste residue (CWR) as substrate for biobutanol production was investigated using solvent-tolerant Clostridium sp. Four of obligatory, solvent-producing bacteria were isolated from sago industry waste sites. The NSW, PNAS1, SB5 and SBI4 strains showed identical profiles of 16S rRNA gene sequence similarity of Bacillus coagulans, Clostridium bifermentans and Clostridium sp. (97% similarity) and a wide range of carbohydrate substrate; however, the CWR was found to be suitable for the production of biobutanol considerably. Batch culture study was carried out using parameters such as time and temperature and carbon sources have been studied and optimized. Using pre-optimized CWR medium, significant amount of solvent production was observed in NSW, PNAS1, SB5 and SBI4 with 1.53, 3.36, 1.56 and 2.5 g L-1of butanol yield and 6.84, 9.012, 8.32 and 8.22 g L-1of total solvents, respectively. On the basis of these studies, NSW is proposed to represent the B. coagulans for butanol production directly from sago waste residues.
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Affiliation(s)
- Davidraj Johnravindar
- a Department of Biotechnology , School of Biosciences, Periyar University , Salem , Tamil Nadu , India
| | - Kumarasamy Murugesan
- b Department of Environmental Science , Periyar University , Salem , Tamil Nadu , India
| | - Jonathan W C Wong
- c Applied Research Centre for Pearl River Delta Environment, Department of Biology , Hong Kong Baptist University , Kowloon , Hong Kong
| | - Namasivayam Elangovan
- a Department of Biotechnology , School of Biosciences, Periyar University , Salem , Tamil Nadu , India
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