1
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Sama FJ, Doyle RA, Kariuki BM, Pridmore NE, Sparkes HA, Wingad RL, Wass DF. Backbone-functionalised ruthenium diphosphine complexes for catalytic upgrading of ethanol and methanol to iso-butanol. Dalton Trans 2024; 53:8005-8010. [PMID: 38651270 DOI: 10.1039/d4dt00561a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Efficient catalysts for Guerbet-type ethanol/methanol upgrading to iso-butanol have been developed via Michael addition of a variety of amines to ruthenium-coordinated dppen (1,1-bis(diphenylphosphino)ethylene). All catalysts produce over 50% iso-butanol yield with >90% selectivity in 2 h with catalyst 1 showing the best activity (74% yield after this time). The selectivity and turnover number approach 100% and 1000 respectively using catalyst 6. The presence of uncoordinated functionalised donor groups in these complexes results in a more stable catalyst compared to unfunctionalised analogues.
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Affiliation(s)
- Folasade J Sama
- Cardiff Catalysis Institute, Cardiff University, Translational Research Hub, Maindy Road, Cathays, Cardiff, Wales, CF24 4HQ, UK.
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Rachel A Doyle
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Benson M Kariuki
- Cardiff Catalysis Institute, Cardiff University, Translational Research Hub, Maindy Road, Cathays, Cardiff, Wales, CF24 4HQ, UK.
| | | | - Hazel A Sparkes
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Richard L Wingad
- Cardiff Catalysis Institute, Cardiff University, Translational Research Hub, Maindy Road, Cathays, Cardiff, Wales, CF24 4HQ, UK.
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Duncan F Wass
- Cardiff Catalysis Institute, Cardiff University, Translational Research Hub, Maindy Road, Cathays, Cardiff, Wales, CF24 4HQ, UK.
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
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2
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Bravo-Venegas J, Prado-Acebo I, Gullón B, Lú-Chau TA, Eibes G. Avoiding acid crash: From apple pomace hydrolysate to butanol through acetone-butanol-ethanol fermentation in a zero-waste approach. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 164:47-56. [PMID: 37030028 DOI: 10.1016/j.wasman.2023.03.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/27/2023] [Accepted: 03/27/2023] [Indexed: 06/19/2023]
Abstract
Apple pomace (AP) is a lignocellulosic residue from the juice and cider industries that can be valorized in a multi-product biorefinery to generate multiple value-added compounds, including biofuels such as butanol. Butanol is produced biologically by acetone-butanol-ethanol (ABE) fermentation using bacteria of the genus Clostridium from sugar-based feedstocks. In this study, AP hydrolysate was used as a substrate for producing butanol by ABE fermentation. Various environmental factors influence the amount of butanol produced, but only under certain conditions the so-called 'acid crash', an undesirable phenomenon characterized by a total arrest of cell growth and solvent production, can be avoided. Operational parameters that may influence the prevention of acid crash occurrence, such as pH, CaCO3 concentration and culture temperature, were optimized in C. beijerinckii CECT 508 cultures applying a Box-Behnken experimental design. The mathematical model of the fermentation found the optimal conditions of pH 7, 6.8 g/L of CaCO3 and 30 °C, and this was validated in an independent experiment carried out at the optimal conditions, reaching 10.75 g/L of butanol. Also, the comparison of butanol production between the supernatant of the AP hydrolysate (10.57 g/L) and the full hydrolysate with solids (11.69 g/L) indicated that it is possible to eliminate the centrifugation step after hydrolysis, which may allow to reduce process costs and the full utilization of apple pomace, aiming a zero-waste approach.
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Affiliation(s)
- Javier Bravo-Venegas
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, Santiago de Compostela 15706, Spain
| | - Inés Prado-Acebo
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, Santiago de Compostela 15706, Spain
| | - Beatriz Gullón
- Universidade de Vigo, Departamento de Enxeñaría Química, Facultade de Ciencias, 32004 Ourense, Spain
| | - Thelmo A Lú-Chau
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, Santiago de Compostela 15706, Spain.
| | - Gemma Eibes
- CRETUS, Department of Chemical Engineering, Universidade de Santiago de Compostela, Santiago de Compostela 15706, Spain
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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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4
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Cavelius P, Engelhart-Straub S, Mehlmer N, Lercher J, Awad D, Brück T. The potential of biofuels from first to fourth generation. PLoS Biol 2023; 21:e3002063. [PMID: 36996247 PMCID: PMC10063169 DOI: 10.1371/journal.pbio.3002063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023] Open
Abstract
The steady increase in human population and a rising standard of living heighten global demand for energy. Fossil fuels account for more than three-quarters of energy production, releasing enormous amounts of carbon dioxide (CO2) that drive climate change effects as well as contributing to severe air pollution in many countries. Hence, drastic reduction of CO2 emissions, especially from fossil fuels, is essential to tackle anthropogenic climate change. To reduce CO2 emissions and to cope with the ever-growing demand for energy, it is essential to develop renewable energy sources, of which biofuels will form an important contribution. In this Essay, liquid biofuels from first to fourth generation are discussed in detail alongside their industrial development and policy implications, with a focus on the transport sector as a complementary solution to other environmentally friendly technologies, such as electric cars.
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Affiliation(s)
- Philipp Cavelius
- Werner Siemens-Chair of Synthetic Biotechnology, TUM School of Natural Sciences, Technical University of Munich (TUM), Garching, Germany
| | - Selina Engelhart-Straub
- Werner Siemens-Chair of Synthetic Biotechnology, TUM School of Natural Sciences, Technical University of Munich (TUM), Garching, Germany
| | - Norbert Mehlmer
- Werner Siemens-Chair of Synthetic Biotechnology, TUM School of Natural Sciences, Technical University of Munich (TUM), Garching, Germany
| | - Johannes Lercher
- Chair of Technical Chemistry II, TUM School of Natural Sciences, Technical University of Munich (TUM), Garching, Germany
| | - Dania Awad
- Werner Siemens-Chair of Synthetic Biotechnology, TUM School of Natural Sciences, Technical University of Munich (TUM), Garching, Germany
| | - Thomas Brück
- Werner Siemens-Chair of Synthetic Biotechnology, TUM School of Natural Sciences, Technical University of Munich (TUM), Garching, Germany
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5
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Xie S, Li Z, Zhu G. Salting-out Effect on the Separation and Purification of Acetic Esters: Salting-out Agents, Theory, and Applications. SEPARATION & PURIFICATION REVIEWS 2022. [DOI: 10.1080/15422119.2022.2159837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shaoqu Xie
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, P. R. China
| | - Zhuoxi Li
- School of Pharmacy, Guangzhou Xinhua University, Guangzhou, P. R. China
| | - Guodian Zhu
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P. R. China
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6
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Antoniêto ACC, Nogueira KMV, Mendes V, Maués DB, Oshiquiri LH, Zenaide-Neto H, de Paula RG, Gaffey J, Tabatabaei M, Gupta VK, Silva RN. Use of carbohydrate-directed enzymes for the potential exploitation of sugarcane bagasse to obtain value-added biotechnological products. Int J Biol Macromol 2022; 221:456-471. [PMID: 36070819 DOI: 10.1016/j.ijbiomac.2022.08.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/28/2022] [Accepted: 08/29/2022] [Indexed: 11/15/2022]
Abstract
Microorganisms, such as fungi and bacteria, are crucial players in the production of enzymatic cocktails for biomass hydrolysis or the bioconversion of plant biomass into products with industrial relevance. The biotechnology industry can exploit lignocellulosic biomass for the production of high-value chemicals. The generation of biotechnological products from lignocellulosic feedstock presents several bottlenecks, including low efficiency of enzymatic hydrolysis, high cost of enzymes, and limitations on microbe metabolic performance. Genetic engineering offers a route for developing improved microbial strains for biotechnological applications in high-value product biosynthesis. Sugarcane bagasse, for example, is an agro-industrial waste that is abundantly produced in sugar and first-generation processing plants. Here, we review the potential conversion of its feedstock into relevant industrial products via microbial production and discuss the advances that have been made in improving strains for biotechnological applications.
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Affiliation(s)
- Amanda Cristina Campos Antoniêto
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil
| | - Karoline Maria Vieira Nogueira
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil
| | - Vanessa Mendes
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil
| | - David Batista Maués
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil
| | - Letícia Harumi Oshiquiri
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil
| | - Hermano Zenaide-Neto
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil
| | - Renato Graciano de Paula
- Department of Physiological Sciences, Health Sciences Centre, Federal University of Espirito Santo, Vitória, ES 29047-105, Brazil
| | - James Gaffey
- Circular Bioeconomy Research Group, Shannon Applied Biotechnology Centre, Munster Technological University, Kerry, Ireland; BiOrbic, Bioeconomy Research Centre, University College Dublin, Belfield, Dublin, Ireland
| | - Meisam Tabatabaei
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia.
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK; Center for Safe and Improved Food, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK.
| | - Roberto Nascimento Silva
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil.
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7
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Technoeconomic analysis and environmental sustainability estimation of bioalcohol production from barley straw. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Abstract
Abstract
In the last decade, there was observed a growing demand for both n-butanol as a potential fuel or fuel additive, and propylene as the only raw material for production of alcohol and other more bulky propylene chemical derivatives with faster growing outputs (polymers, propylene oxide, and acrylic acid). The predictable oilfield depletion and the European Green Deal adoption stimulated interest in alternative processes for n-butanol production, especially those involving bio-based materials. Their commercialization will promote additional market penetration of n-butanol for its application as a basic chemical. We analyze briefly the current status of two most advanced bio-based processes, i.e. ethanol–to-n-butanol and acetone–butanol–ethanol (ABE) fermentation. In the second part of the review, studies of n-butanol and ABE conversion to valuable products are considered with an emphasis on the most perspective catalytic systems and variants of the future processes realization.
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Affiliation(s)
- Larisa Pinaeva
- Department of Technology of Catalytic Processes, Boreskov Institute of Catalysis , Novosibirsk 630090 , Russia
| | - Alexandr Noskov
- Department of Technology of Catalytic Processes, Boreskov Institute of Catalysis , Novosibirsk 630090 , Russia
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9
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Ibrahim MF, Shaharuddin NA, Alias NH, Jenol MA, Abd‐Aziz S, Phang L. Biobutanol Production from Oil Palm Biomass. BIOREFINERY OF OIL PRODUCING PLANTS FOR VALUE‐ADDED PRODUCTS 2022:307-324. [DOI: 10.1002/9783527830756.ch16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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10
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Wang NM, Dillon S, Guironnet D. Mechanistic investigations on a homogeneous ruthenium Guerbet catalyst in a flow reactor. REACT CHEM ENG 2022. [DOI: 10.1039/d1re00551k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A mechanistic investigation on the ethanol self-condensation reaction (Guerbet reaction) catalyzed by a bis(pyridylimino)isoindolate Ru(ii) catalyst was performed using a specifically designed continuously-stirred tank reactor (CSTR).
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Affiliation(s)
- Nicholas M. Wang
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Sam Dillon
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Damien Guironnet
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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11
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On the ultrasound-assisted preparation of Cu/SiO2 system as a selective catalyst for the conversion of biobutanol to butanal. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01945-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Selective dehydration of 1-butanol to butenes over silica supported heteropolyacid catalysts: Mechanistic aspect. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Winterton N. The green solvent: a critical perspective. CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY 2021; 23:2499-2522. [PMID: 34608382 PMCID: PMC8482956 DOI: 10.1007/s10098-021-02188-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
UNLABELLED Solvents are important in most industrial and domestic applications. The impact of solvent losses and emissions drives efforts to minimise them or to avoid them completely. Since the 1990s, this has become a major focus of green chemistry, giving rise to the idea of the 'green' solvent. This concept has generated a substantial chemical literature and has led to the development of so-called neoteric solvents. A critical overview of published material establishes that few new materials have yet found widespread use as solvents. The search for less-impacting solvents is inefficient if carried out without due regard, even at the research stage, to the particular circumstances under which solvents are to be used on the industrial scale. Wider sustainability questions, particularly the use of non-fossil sources of organic carbon in solvent manufacture, are more important than intrinsic 'greenness'. While solvency is universal, a universal solvent, an alkahest, is an unattainable ideal. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10098-021-02188-8.
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Affiliation(s)
- Neil Winterton
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD UK
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14
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Obergruber M, Hönig V, Jenčík J, Hájek J, Schlehöfer D, Herink T. Lignocellulosic Bioethanol and Biobutanol as a Biocomponent for Diesel Fuel. MATERIALS 2021; 14:ma14195597. [PMID: 34639994 PMCID: PMC8509815 DOI: 10.3390/ma14195597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 11/16/2022]
Abstract
In this paper, the fuel properties of mixtures of diesel fuel and ethanol and diesel fuel and butanol in the ratio of 2.5% to 30% were investigated. The physicochemical properties of the blends such as the cetane number, cetane index, density, flash point, kinematic viscosity, lubricity, CFPP, and distillation characteristics were measured, and the effect on fuel properties was evaluated. These properties were compared with the current EN 590+A1 standard to evaluate the suitability of the blends for use in unmodified engines. The alcohols were found to be a suitable bio-component diesel fuel additive. For most physicochemical properties, butanol was found to have more suitable properties than ethanol when used in diesel engines. The results show that for some properties, a butanol–diesel fuel mixture can be mixed up to a ratio of 15%. Other properties would meet the standard by a suitable choice of base diesel.
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Affiliation(s)
- Michal Obergruber
- Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 169 21 Prague, Czech Republic; (M.O.); (J.J.); (J.H.)
| | - Vladimír Hönig
- Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 169 21 Prague, Czech Republic; (M.O.); (J.J.); (J.H.)
- Correspondence: ; Tel.: +420-22438-2722
| | - Jan Jenčík
- Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 169 21 Prague, Czech Republic; (M.O.); (J.J.); (J.H.)
- ORLEN UniCRE a.s., Záluží 1, 436 70 Litvínov, Czech Republic; (D.S.); (T.H.)
| | - Jiří Hájek
- Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 169 21 Prague, Czech Republic; (M.O.); (J.J.); (J.H.)
- ORLEN UniCRE a.s., Záluží 1, 436 70 Litvínov, Czech Republic; (D.S.); (T.H.)
| | - Dominik Schlehöfer
- ORLEN UniCRE a.s., Záluží 1, 436 70 Litvínov, Czech Republic; (D.S.); (T.H.)
| | - Tomáš Herink
- ORLEN UniCRE a.s., Záluží 1, 436 70 Litvínov, Czech Republic; (D.S.); (T.H.)
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15
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King AM, Wingad RL, Pridmore NE, Pringle PG, Wass DF. Rhenium Complexes Bearing Tridentate and Bidentate Phosphinoamine Ligands in the Production of Biofuel Alcohols via the Guerbet Reaction. Organometallics 2021; 40:2844-2851. [PMID: 34483434 PMCID: PMC8411595 DOI: 10.1021/acs.organomet.1c00313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Indexed: 11/28/2022]
Abstract
We report a variety of rhenium complexes supported by bidentate and tridentate phosphinoamine ligands and their use in the formation of the advanced biofuel isobutanol from methanol and ethanol. Rhenium pincer complexes 1-3 are effective catalysts for this process, with 2 giving isobutanol in 35% yields, with 97% selectivity in the liquid fraction, over 16 h with catalyst loadings as low as 0.07 mol %. However, these catalysts show poorer overall selectivity, with the formation of a significant amount of carboxylate salt solid byproduct also being observed. Production of the active catalyst 1d has been followed by 31P NMR spectroscopy, and the importance of the presence of base and elevated temperatures to catalyst activation has been established. Complexes supported by diphosphine ligands are inactive for Guerbet chemistry; however, complexes supported by bidentate phosphinoamine ligands show greater selectivity for isobutanol formation over carboxylate salts. The novel complex 7 was able to produce isobutanol in 28% yield over 17 h. The importance of the N-H moiety to the catalytic performance has also been established, giving further weight to the hypothesis that these catalysts operate via a cooperative mechanism.
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Affiliation(s)
- Ashley M King
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Richard L Wingad
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Natalie E Pridmore
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Paul G Pringle
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Duncan F Wass
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
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16
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Zhou Z, Luo Y, Peng S, Zhang Q, Li Z, Li H. Enhancement of Butanol Production in a Newly Selected Strain through Accelerating Phase Shift by Different Phases C/N Ratio Regulation from Puerariae Slag Hydrolysate. BIOTECHNOL BIOPROC E 2021. [DOI: 10.1007/s12257-020-0133-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Obergruber M, Hönig V, Procházka P, Kučerová V, Kotek M, Bouček J, Mařík J. Physicochemical Properties of Biobutanol as an Advanced Biofuel. MATERIALS 2021; 14:ma14040914. [PMID: 33671951 PMCID: PMC7919056 DOI: 10.3390/ma14040914] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/09/2021] [Accepted: 02/11/2021] [Indexed: 11/16/2022]
Abstract
Biobutanol is a renewable, less polluting, and potentially viable alternative fuel to conventional gasoline. Biobutanol can be produced from same sources as bioethanol, and it has many advantages over the widespread bioethanol. This paper systematically analyzes biobutanol fuel as an alternative to bioethanol in alcohol–gasoline mixtures and the physicochemical properties. Based on the conducted analyses, it was found that biobutanol mixtures have a more suitable behavior of vapor pressure without the occurrence of azeotrope, do not form a separate phase in lower temperature, it has higher energy density, but slightly reduce the octane number and a have higher viscosity. However, in general, biobutanol has many advantageous properties that could allow its use in gasoline engines instead of the commonly used bioethanol.
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Affiliation(s)
- Michal Obergruber
- Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 169 21 Prague 6, Czech Republic;
| | - Vladimír Hönig
- Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 169 21 Prague 6, Czech Republic;
- Correspondence: ; Tel.: +420-22438-2722
| | - Petr Procházka
- Department of Economics, Faculty of Economics and Management, Czech University of Life Sciences Prague, Kamýcká 129, 169 21 Prague 6, Czech Republic;
| | - Viera Kučerová
- Department of Chemistry and Chemical Technology, Faculty of Wood Sciences and Technology, Technical University of Zvolen, 960 53 Zvolen, Slovakia;
| | - Martin Kotek
- Department of Vehicles and Ground Transport, Faculty of Engineering, Czech University of Life Sciences Prague, Kamýcká 129, 169 21 Prague 6, Czech Republic; (M.K.); (J.M.)
| | - Jiří Bouček
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 21 Praha 6, Czech Republic;
| | - Jakub Mařík
- Department of Vehicles and Ground Transport, Faculty of Engineering, Czech University of Life Sciences Prague, Kamýcká 129, 169 21 Prague 6, Czech Republic; (M.K.); (J.M.)
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18
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King AM, Sparkes HA, Wingad RL, Wass DF. Manganese Diphosphine and Phosphinoamine Complexes Are Effective Catalysts for the Production of Biofuel Alcohols via the Guerbet Reaction. Organometallics 2020; 39:3873-3878. [PMID: 33583993 PMCID: PMC7874136 DOI: 10.1021/acs.organomet.0c00588] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Indexed: 01/09/2023]
Abstract
![]()
We
report a variety of manganese-based catalysts containing both
chelating diphosphine (bis(diphenylphosphino)methane (dppm: 1, 2, and 7) or 1,2-bis(diphenylphosphino)ethane
(dppe: 3)), and mixed-donor phosphinoamine (2-(diphenylphosphino)ethylamine
(dppea: 4–6)) ligands for the upgrading
of ethanol and methanol to the advanced biofuel isobutanol. These
catalysts show moderate selectivity up to 74% along with turnover
numbers greater than 100 over 90 h, with catalyst 2 supported
by dppm demonstrating superior performance. The positive effect of
substituting the ligand backbone was also displayed with a catalyst
supported by C-phenyl-substituted dppm (8) having markedly
improved performance compared to the parent dppm catalysts. Catalysts
supported by the phosphinoamine ligand dppea are also active for the
upgrading of ethanol to n-butanol. These results
show that so-called PNP-pincer ligands are not a prerequisite for
the use of manganese catalysts in Guerbet chemistry and that simple
chelates can be used effectively.
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Affiliation(s)
- Ashley M King
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Hazel A Sparkes
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Richard L Wingad
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Duncan F Wass
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
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19
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Vees CA, Neuendorf CS, Pflügl S. Towards continuous industrial bioprocessing with solventogenic and acetogenic clostridia: challenges, progress and perspectives. J Ind Microbiol Biotechnol 2020; 47:753-787. [PMID: 32894379 PMCID: PMC7658081 DOI: 10.1007/s10295-020-02296-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 07/20/2020] [Indexed: 12/11/2022]
Abstract
The sustainable production of solvents from above ground carbon is highly desired. Several clostridia naturally produce solvents and use a variety of renewable and waste-derived substrates such as lignocellulosic biomass and gas mixtures containing H2/CO2 or CO. To enable economically viable production of solvents and biofuels such as ethanol and butanol, the high productivity of continuous bioprocesses is needed. While the first industrial-scale gas fermentation facility operates continuously, the acetone-butanol-ethanol (ABE) fermentation is traditionally operated in batch mode. This review highlights the benefits of continuous bioprocessing for solvent production and underlines the progress made towards its establishment. Based on metabolic capabilities of solvent producing clostridia, we discuss recent advances in systems-level understanding and genome engineering. On the process side, we focus on innovative fermentation methods and integrated product recovery to overcome the limitations of the classical one-stage chemostat and give an overview of the current industrial bioproduction of solvents.
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Affiliation(s)
- Charlotte Anne Vees
- Institute of Chemical, Environmental and Bioscience Engineering, Research Area Biochemical Engineering, Technische Universität Wien, Gumpendorfer Straße 1a, 1060 Vienna, Austria
| | - Christian Simon Neuendorf
- Institute of Chemical, Environmental and Bioscience Engineering, Research Area Biochemical Engineering, Technische Universität Wien, Gumpendorfer Straße 1a, 1060 Vienna, Austria
| | - Stefan Pflügl
- Institute of Chemical, Environmental and Bioscience Engineering, Research Area Biochemical Engineering, Technische Universität Wien, Gumpendorfer Straße 1a, 1060 Vienna, Austria
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20
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Degeneration of industrial bacteria caused by genetic instability. World J Microbiol Biotechnol 2020; 36:119. [DOI: 10.1007/s11274-020-02901-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/14/2020] [Indexed: 12/11/2022]
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21
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Aerobic acetone-butanol-isopropanol (ABI) fermentation through a co-culture of Clostridium beijerinckii G117 and recombinant Bacillus subtilis 1A1. Metab Eng Commun 2020; 11:e00137. [PMID: 32612931 PMCID: PMC7322341 DOI: 10.1016/j.mec.2020.e00137] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/14/2020] [Accepted: 06/06/2020] [Indexed: 02/07/2023] Open
Abstract
An engineered B. subtilis 1A1 strain (BsADH2) expressing a secondary alcohol dehydrogenase (CpSADH) was co-cultured with C. beijerinckii G117 under an aerobic condition. During the fermentation on glucose, B. subtilis BsADH2 depleted oxygen in culture media completely and created an anaerobic environment for C. beijerinckii G117, an obligate anaerobe, to grow. Meanwhile, lactate produced by B. subtilis BsADH2 was re-assimilated by C. beijerinckii G117. In return, acetone produced by C. beijerinckii G117 was reduced into isopropanol by B. subtilis BsADH2 via expressing the CpSADH, which helped maintain the redox balance of the engineered B. subtilis. In the symbiotic system consisting of two strains, 1.7 g/L of acetone, 4.8 g/L of butanol, and 0.9 g/L of isopropanol (with an isopropanol/acetone ratio of 0.53) was produced from 60 g/L of glucose. This symbiotic system also worked when oxygen was supplied to the culture, although less isopropanol was produced (0.9 g/L of acetone, 4.9 g/L of butanol, and 0.2 g/L of isopropanol). The isopropanol titer was increased substantially to 2.5 g/L when we increased the inoculum size of B. subtilis BsADH2 and optimized other process parameters. With the Bacillus-Clostridium co-culture, switching from the original acetone-butanol (AB) fermentation to an aerobic acetone-butanol-isopropanol (ABI) fermentation can be easily achieved without genetic engineering of Clostridium. This strategy of employing a recombinant Bacillus to co-culture with Clostridium should be potentially useful to modify traditional acetone-butanol-ethanol fermentation for the production of other value-added chemicals. A secondary alcohol dehydrogenase was expressed in Bacillus subtilis. Acetone-butanol was upgraded into acetone-butanol-isopropanol by B. subtilis. A mutualistic relationship was established between B. subtilis and C. beijerinckii. Aerobic co-culture of B. subtilis and C. beijerinckii was achieved. Clostridium fermentation was improved by introducing a genetically-modified strain.
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22
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Rebello S, Anoopkumar AN, Aneesh EM, Sindhu R, Binod P, Pandey A. Sustainability and life cycle assessments of lignocellulosic and algal pretreatments. BIORESOURCE TECHNOLOGY 2020; 301:122678. [PMID: 31982298 DOI: 10.1016/j.biortech.2019.122678] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/17/2019] [Accepted: 12/22/2019] [Indexed: 06/10/2023]
Abstract
Bioenergy and Bioproducts have gained augmented relevance in the wake of depleting fossil fuels and escalating environmental problems induced by anthropogenic activities. The paper outlays the various applications of biomass and their significance in various processes. The prospects of lignocelluloses and algal raw materials to biofuel production are well established; however the life cycle analysis of every bioprocess becomes essential for its technical feasibility. The paper mainly targets the life cycle analysis of various pretreatment strategies adopted in the generation of biofuels. Biomass pretreatment- accounts to a major cost contributory factor in the entire production process and thus the identification of alternate cost effective strategies is of much significance. The LCA analysis identifies biofuel superior to petroleum chemicals based on its environmental effects, however better results are expected to be achieved by depending on methods using solar based energy sources for limiting fossil fuels even in processes of biofuel production.
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Affiliation(s)
- Sharrel Rebello
- Communicable Disease Research Laboratory, St Joseph's College, Irinjalakuda, Kerala, India.
| | - A N Anoopkumar
- Communicable Disease Research Laboratory, St Joseph's College, Irinjalakuda, Kerala, India; Department of Zoology, Christ College, Irinjalakuda, University of Calicut, Kerala, India
| | | | - Raveendran Sindhu
- Microbial Processes and Technology Division, CSIR-National Institute of Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, India
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute of Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, India
| | - Ashok Pandey
- Centre for Innovation and Translational Research, CSIR- Indian Institute of Toxicology Research (CSIR-IITR), 31 MG Marg, Lucknow 226 001, India
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23
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Li S, Huang L, Ke C, Pang Z, Liu L. Pathway dissection, regulation, engineering and application: lessons learned from biobutanol production by solventogenic clostridia. BIOTECHNOLOGY FOR BIOFUELS 2020; 13:39. [PMID: 32165923 PMCID: PMC7060580 DOI: 10.1186/s13068-020-01674-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 02/04/2020] [Indexed: 06/01/2023]
Abstract
The global energy crisis and limited supply of petroleum fuels have rekindled the interest in utilizing a sustainable biomass to produce biofuel. Butanol, an advanced biofuel, is a superior renewable resource as it has a high energy content and is less hygroscopic than other candidates. At present, the biobutanol route, employing acetone-butanol-ethanol (ABE) fermentation in Clostridium species, is not economically competitive due to the high cost of feedstocks, low butanol titer, and product inhibition. Based on an analysis of the physiological characteristics of solventogenic clostridia, current advances that enhance ABE fermentation from strain improvement to product separation were systematically reviewed, focusing on: (1) elucidating the metabolic pathway and regulation mechanism of butanol synthesis; (2) enhancing cellular performance and robustness through metabolic engineering, and (3) optimizing the process of ABE fermentation. Finally, perspectives on engineering and exploiting clostridia as cell factories to efficiently produce various chemicals and materials are also discussed.
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Affiliation(s)
- Shubo Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004 China
| | - Li Huang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004 China
| | - Chengzhu Ke
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004 China
| | - Zongwen Pang
- College of Life Science and Technology, Guangxi University, Nanning, 530005 China
| | - Liming Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122 China
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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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25
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Copper–Zirconia Catalysts: Powerful Multifunctional Catalytic Tools to Approach Sustainable Processes. Catalysts 2020. [DOI: 10.3390/catal10020168] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Copper–zirconia catalysts find many applications in different reactions owing to their unique surface properties and relatively easy manufacture. The so-called methanol economy, which includes the CO2 and CO valorization and the hydrogen production, and the emerging (bio)alcohol upgrading via dehydrogenative coupling reaction, are two critical fields for a truly sustainable development in which copper–zirconia has a relevant role. In this review, we provide a systematic view on the factors most impacting the catalytic activity and try to clarify some of the discrepancies that can be found in the literature. We will show that contrarily to the large number of studies focusing on the zirconia crystallographic phase, in the last years, it has turned out that the degree of surface hydroxylation and the copper–zirconia interphase are in fact the two mostly determining factors to be controlled to achieve high catalytic performances.
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26
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Scotti N, Ravasio N, Zaccheria F, Irimescu A, Merola SS. Green pathway to a new fuel extender: continuous flow catalytic synthesis of butanol/butyl butyrate mixtures. RSC Adv 2020; 10:3130-3136. [PMID: 35497726 PMCID: PMC9048835 DOI: 10.1039/d0ra00198h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 01/09/2020] [Indexed: 11/25/2022] Open
Abstract
The preparation of a butanol/butyl butyrate mixture was performed in one-step under continuous flow conditions with a CuO/ZrO2 catalyst. The catalytic system allows one to directly obtain up to 40–42% of butyl butyrate starting from butanol via a dehydrogenative coupling reaction without using solvent or additives. The obtained mixture was tested in a direct injection spark ignition engine as a blend of 70%vol gasoline and 30%vol butanol/butyl butyrate mixture. One of the main goals was to evaluate overall performance and whether knock tendency increased compared to the reference condition that featured gasoline only fueling. Exhaust gas pollutants were evaluated as well, so as to give a more complete picture of environmental impact effects. Overall engine performance and emissions were found to be comparable to those obtained for the reference case, with negligible increase in knocking characteristics. The preparation of a butanol/butyl butyrate mixture was performed in one-step under continuous flow conditions with a CuO/ZrO2 catalyst.![]()
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Affiliation(s)
- Nicola Scotti
- Istituto di Scienze e Tecnologie Chimiche “G. Natta”
- c/o Dipartimento di Chimica
- CNR
- 20133 Milano
- Italy
| | - Nicoletta Ravasio
- Istituto di Scienze e Tecnologie Chimiche “G. Natta”
- c/o Dipartimento di Chimica
- CNR
- 20133 Milano
- Italy
| | - Federica Zaccheria
- Istituto di Scienze e Tecnologie Chimiche “G. Natta”
- c/o Dipartimento di Chimica
- CNR
- 20133 Milano
- Italy
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27
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28
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Azimi H, Tezel H, Thibault J. Optimization of the in situ recovery of butanol from ABE fermentation broth via membrane pervaporation. Chem Eng Res Des 2019. [DOI: 10.1016/j.cherd.2019.07.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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29
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Sarchami T, Rehmann L. Increased Butanol Yields through Cosubstrate Fermentation of Jerusalem Artichoke Tubers and Crude Glycerol by Clostridium pasteurianum DSM 525. ACS OMEGA 2019; 4:15521-15529. [PMID: 31572853 PMCID: PMC6761685 DOI: 10.1021/acsomega.9b00879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
Clostridium pasteurianum DSM 525 can produce butanol, 1,3-propanediol, and ethanol from glycerol. The product distribution can be tilted toward butanol when adding butyric acid. The strain predominantly produces acetic and butyric acids when grown on saccharides. Hence, butyrate formed from saccharide conversion can be used to stimulate butanol production from glycerol under cosubstrate cultivation. The optimal cosubstrate ratio was determined, and under optimal conditions, a butanol yield and a productivity of 0.27 ± 0.01 gbutanol g-1 (glycerol + sugar) -1 and 0.74 ± 0.02 g L-1 h-1 were obtained. On the basis of these results, batch fermentation in a 5 L bioreactor was performed using Jerusalem artichoke hydrolysate (carbohydrate source) and crude glycerol (residue from biodiesel production) at the previously determined optimal condition. A butanol yield and a productivity of 0.28 ± 0.007 gbutanol g(glycerol+sugar) -1 and 0.55 ± 0.008 g L-1 h-1 were achieved after 27 h fermentation, indicating the suitability of those low-cost carbon sources as cosubstrates for butanol production via C. pasteurianum.
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30
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Nimbalkar PR, Khedkar MA, Kulkarni RK, Chavan PV, Bankar SB. Strategic intensification in butanol production by exogenous amino acid supplementation: Fermentation kinetics and thermodynamic studies. BIORESOURCE TECHNOLOGY 2019; 288:121521. [PMID: 31154278 DOI: 10.1016/j.biortech.2019.121521] [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: 04/20/2019] [Revised: 05/17/2019] [Accepted: 05/18/2019] [Indexed: 06/09/2023]
Abstract
Amino acids are vital precursors in many biochemical production pathways in addition to efficient nitrogen source which could enhance microbial growth yields. Therefore, in present study, the effect of amino acids from aliphatic and aromatic family was comprehensively evaluated in batch and integrated fed batch fermentation system. Clostridium acetobutylicum NRRL B-527 was able to utilize 54.15 ± 1.0 g/L glucose to produce 12.43 ± 0.10 g/L butanol under batch cultivation. Interestingly, a significant step up in butanol titer (20.82 ± 0.33 g/L) was achieved by using fed-batch fermentation process integrated with liquid-liquid extraction module. Besides, mathematical modeling studies demonstrated the best fitting of experimental data with first order reaction kinetics. Overall, an enhancement in solvent titer by induction of essential cellular components coupled with advance bioprocess strategy was successfully utilized in this study for its further applications.
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Affiliation(s)
- Pranhita R Nimbalkar
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland; Department of Chemical Engineering, Bharati Vidyapeeth Deemed University College of Engineering, Pune 411043, India
| | - Manisha A Khedkar
- Department of Chemical Engineering, Bharati Vidyapeeth Deemed University College of Engineering, Pune 411043, India
| | - Rahul K Kulkarni
- Department of Chemical Engineering, Bharati Vidyapeeth Deemed University College of Engineering, Pune 411043, India
| | - Prakash V Chavan
- Department of Chemical Engineering, Bharati Vidyapeeth Deemed University College of Engineering, Pune 411043, India
| | - Sandip B Bankar
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland.
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31
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Nimbalkar P, Khedkar MA, Chavan PV, Bankar SB. Enhanced Biobutanol Production in Folic Acid-Induced Medium by Using Clostridium acetobutylicum NRRL B-527. ACS OMEGA 2019; 4:12978-12982. [PMID: 31460424 PMCID: PMC6690572 DOI: 10.1021/acsomega.9b00583] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/18/2019] [Indexed: 05/05/2023]
Abstract
The conventional acetone-butanol-ethanol fermentation process suffers from several key hurdles viz. low solvent titer, insufficient yield and productivity, and solvent intolerance which largely affect butanol commercialization. To counteract these issues, the effect of stimulator, namely, folic acid was investigated in the present study to improve butanol titer. Folic acid is involved in biosynthesis of a diverse range of cellular components, which subsequently alter the amino acid balance. Therefore, different concentrations of folic acid were screened, and 10 mg/L supplementation resulted in a maximum butanol production of 10.78 ± 0.09 g/L with total solvents of 18.91 ± 0.21 g/L. Folic acid addition at different time intervals was also optimized to get additional improvements in final butanol concentration. Overall, folic acid supplementation resulted in two-fold increase in butanol concentration and thus could be considered as a promising strategy to enhance solvent titers.
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Affiliation(s)
- Pranhita
R. Nimbalkar
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O.
Box 16100, Aalto FI-00076, Finland
- Department
of Chemical Engineering, Bharati Vidyapeeth
Deemed University College of Engineering, Pune 411043, India
| | - Manisha A. Khedkar
- Department
of Chemical Engineering, Bharati Vidyapeeth
Deemed University College of Engineering, Pune 411043, India
| | - Prakash V. Chavan
- Department
of Chemical Engineering, Bharati Vidyapeeth
Deemed University College of Engineering, Pune 411043, India
- E-mail: . Phone: +91-020-24107390. Fax: +91-020-24372998 (P.V.C.)
| | - Sandip B. Bankar
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O.
Box 16100, Aalto FI-00076, Finland
- E-mail: , . Phone: +358 505777898. Fax: +358 9462373 (S.B.B.)
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Engel M, Bayer H, Holtmann D, Tippkötter N, Ulber R. Flavin secretion of Clostridium acetobutylicum in a bioelectrochemical system - Is an iron limitation involved? Bioelectrochemistry 2019; 129:242-250. [PMID: 31229862 DOI: 10.1016/j.bioelechem.2019.05.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/28/2019] [Accepted: 05/29/2019] [Indexed: 02/06/2023]
Abstract
A flavin-based extracellular electron transfer mechanism (EET) has recently been described for the gram-positive Listeria monocytogenes. The gram-positive, solvent producing Clostridium acetobutylicum is a known flavin producer. Since flavin secretion in C. acetobutylicum can be triggered by a low-iron environment, the interaction of iron with an electrochemical system as well as the consequences for flavin production are investigated. It is shown that iron adsorbs onto the electrode's surface in the form of iron phosphorus compounds but that this iron is still bioavailable. Moreover, a shift in the flavin spectrum of the supernatant from high flavin mononucleotide percentages of 59% to high riboflavin (43-45%) and flavin adenine dinucleotide (FAD, 40-48%) content can be seen by limiting or omitting the iron source from the culture medium. When additionally an electric potential of -600 mV vs. Ag/AgCl (saturated KCl) is applied, the same overall trend is obtained but an increase in flavin concentration and especially in the FAD share between 6 and 27% is observed. This study is a first hint that a flavin-based EET might also take place in solventogenic Clostridia and highlights the importance of further investigation of flavin production and their involvement in EET mechanisms in different species.
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Affiliation(s)
- Mareike Engel
- Bioprocess Engineering, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Hendrik Bayer
- Bioprocess Engineering, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Dirk Holtmann
- Industrial Biotechnology, DECHEMA Research Institute, 60486 Frankfurt am Main, Germany
| | - Nils Tippkötter
- Bioprocess Engineering, University of Applied Science Aachen, 52428 Jülich, Germany
| | - Roland Ulber
- Bioprocess Engineering, University of Kaiserslautern, 67663 Kaiserslautern, Germany.
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Meng F, Ibbett R, de Vrije T, Metcalf P, Tucker G, McKechnie J. Process simulation and life cycle assessment of converting autoclaved municipal solid waste into butanol and ethanol as transport fuels. WASTE MANAGEMENT (NEW YORK, N.Y.) 2019; 89:177-189. [PMID: 31079730 DOI: 10.1016/j.wasman.2019.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 03/08/2019] [Accepted: 04/01/2019] [Indexed: 06/09/2023]
Abstract
In 2015/2016, the total municipal solid waste (MSW) collected by local authority in the U.K. was 26 million tonnes and over 57% is still put into landfill or incinerated. MSW is a promising feedstock for bio-butanol production as it has a high lignocellulosic fibre content such as paper, wood, and food waste, about 50 wt% of a typical MSW stream. The study evaluates acetone, butanol, ethanol and hydrogen production from autoclaved municipal solid waste feedstock. Life cycle assessment is undertaken to evaluate the acetone, butanol, ethanol and hydrogen production process, considering cogeneration of heat and power from residual biogenic waste based on experimental data and process modelling. Acetone, butanol, and ethanol product yield can be achieved at 12.2 kg butanol, 1.5 kg ethanol, 5.7 kg acetone, and 0.9 kg hydrogen per tonne MSW. The product yield is relatively low compared to other lignocellulosic feedstocks primarily because of the lower hydrolysis yield (38% for glucose) achieved in this study; however, hydrolysis yields could be improved in future optimisation work. The conversion shows a net primary energy demand of -1.11 MJ/MJ liquid biofuels (butanol and ethanol) and net greenhouse gas emission of -12.57 g CO2eq/MJ liquid biofuels, achieving a greenhouse gas reduction of 115% compared to gasoline comparator.
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Affiliation(s)
- Fanran Meng
- Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Roger Ibbett
- School of Biosciences, University of Nottingham, Nottingham NG7 2RD, UK
| | - Truus de Vrije
- Food and Biobased Research, Wageningen UR, Bornse Weilanden 9, 6709 WG Wageningen, the Netherlands
| | - Pete Metcalf
- Wilson Bio-Chemical, Unit 22, Hassacarr Close, Dunnington, York YO19 5SN, UK
| | - Gregory Tucker
- School of Biosciences, University of Nottingham, Nottingham NG7 2RD, UK
| | - Jon McKechnie
- Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
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Abstract
The use of solids acids in the synthesis of ethers suitable to be used as fuels or fuel additives were reviewed in a critical way. In particular, the role of Brønsted and Lewis acid sites was highlighted to focus on the pivotal role of the acidity nature on the product distribution. Particular emphasis is given to the recently proposed ethers prepared starting from furfural and 5-hydroxymethyl furfural. Thus, they are very promising products that can be derived from lignocellulosic biomass and bioalcohols and possess very interesting chemical and physical properties for their use in the diesel sector.
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35
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Yang M, Wang J, Nan Y, Zhang J, Li L, Liu G, Vepsäläinen J, Kuittinen S, Pappinen A. Effect of salts formed by neutralization for the enzymatic hydrolysis of cellulose and acetone–butanol–ethanol fermentation. RSC Adv 2019; 9:33755-33760. [PMID: 35528917 PMCID: PMC9073625 DOI: 10.1039/c9ra06869d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 10/16/2019] [Indexed: 11/21/2022] Open
Abstract
Neutralization is essential to maintain the pH for enzymatic hydrolysis of cellulose followed by fermentation of biofuels. This study investigated the effect of salts formed during the neutralization on the enzymatic hydrolysis of cellulosic materials and acetone–butanol–ethanol (ABE) fermentation. The results showed that the formed Ca-citrate salt considerably decreased the glucose release by 26.9% and 26.1% from Avicel and sulfuric acid-pretreated hybrid Pennisetum, respectively, which was probably due to the unproductive adsorption of cellulases by Ca-citrate solids. On the other hand, the formed soluble Na and Ca salts severely inhibited ABE fermentation, thereby decreasing the ABE concentration from 12.8 g L−1 to 0–10.7 g L−1 in different degrees, but no or slight inhibition was observed when the Ca salts formed as precipitates. In particular, Ca-sulfate did not show apparent inhibition of both hydrolysis and fermentation. Therefore, the selection of suitable pretreatment and neutralizing reagents is an alternative way to avoid process inhibition in biofuel production from lignocellulosic materials. The salts formed by neutralization after sulfuric, acetic, and citric acid pretreatments affected enzymatic hydrolysis of lignocellulosic materials and acetone–butanol–ethanol (ABE) fermentation to various degrees.![]()
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Affiliation(s)
- Ming Yang
- College of Life Sciences
- Hebei Agricultural University
- Baoding 071001
- China
| | - Jia Wang
- College of Forestry
- Northwest A&F University
- Yangling 712100
- China
| | - Yufei Nan
- College of Forestry
- Northwest A&F University
- Yangling 712100
- China
| | - Junhua Zhang
- College of Forestry
- Northwest A&F University
- Yangling 712100
- China
| | - Liyun Li
- College of Life Sciences
- Hebei Agricultural University
- Baoding 071001
- China
| | - Guozhen Liu
- College of Life Sciences
- Hebei Agricultural University
- Baoding 071001
- China
| | - Jouko Vepsäläinen
- School of Pharmacy
- University of Eastern Finland
- FI70211 Kuopio
- Finland
| | - Suvi Kuittinen
- School of Forest Sciences
- University of Eastern Finland
- FI80101 Joensuu
- Finland
| | - Ari Pappinen
- School of Forest Sciences
- University of Eastern Finland
- FI80101 Joensuu
- Finland
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36
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Engel M, Holtmann D, Ulber R, Tippkötter N. Increased Biobutanol Production by Mediator‐Less Electro‐Fermentation. Biotechnol J 2018; 14:e1800514. [DOI: 10.1002/biot.201800514] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/29/2018] [Indexed: 01/01/2023]
Affiliation(s)
- Mareike Engel
- Bioprocess EngineeringUniversity of Kaiserslautern67663 KaiserslauternGermany
| | - Dirk Holtmann
- Industrial BiotechnologyDECHEMA Research Institute60486 Frankfurt am MainGermany
| | - Roland Ulber
- Bioprocess EngineeringUniversity of Kaiserslautern67663 KaiserslauternGermany
| | - Nils Tippkötter
- Bioprocess EngineeringUniversity of Applied Science AachenHeinrich‐Mußmann‐Straße 152428 JülichGermany
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37
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Azimi H, Ebneyamini A, Tezel FH, Thibault J. Separation of Organic Compounds from ABE Model Solutions via Pervaporation Using Activated Carbon/PDMS Mixed Matrix Membranes. MEMBRANES 2018; 8:E40. [PMID: 29996486 PMCID: PMC6161144 DOI: 10.3390/membranes8030040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/03/2018] [Accepted: 07/05/2018] [Indexed: 11/17/2022]
Abstract
The pervaporation separation of organic compounds from acetone-butanol-ethanol (ABE) fermentation model solutions was studied using activated carbon (AC) nanoparticle-poly (dimethylsiloxane) (PDMS) mixed matrix membranes (MMM). The effects of the operating conditions and nanoparticle loading content on the membrane performance have been investigated. While the separation factor increased continuously, with an increase in the concentration of nanoparticles, the total flux reached a maximum in the MMM with 8 wt % nanoparticle loading in PDMS. Both the separation factor for ABE and the total permeation flux more than doubled for the MMM in comparison to those of neat PDMS membranes prepared in this study.
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Affiliation(s)
- Hoda Azimi
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON K1N 6N5, Canada.
| | - Arian Ebneyamini
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON K1N 6N5, Canada.
| | - F Handan Tezel
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON K1N 6N5, Canada.
| | - Jules Thibault
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, ON K1N 6N5, Canada.
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38
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Nimbalkar P, Khedkar MA, Parulekar RS, Chandgude VK, Sonawane KD, Chavan PV, Bankar SB. Role of Trace Elements as Cofactor: An Efficient Strategy toward Enhanced Biobutanol Production. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2018; 6:9304-9313. [PMID: 30271690 PMCID: PMC6156106 DOI: 10.1021/acssuschemeng.8b01611] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/02/2018] [Indexed: 05/07/2023]
Abstract
Metabolic engineering has the potential to steadily enhance product titers by inducing changes in metabolism. Especially, availability of cofactors plays a crucial role in improving efficacy of product conversion. Hence, the effect of certain trace elements was studied individually or in combinations, to enhance butanol flux during its biological production. Interestingly, nickel chloride (100 mg L-1) and sodium selenite (1 mg L-1) showed a nearly 2-fold increase in solvent titer, achieving 16.13 ± 0.24 and 12.88 ± 0.36 g L-1 total solvents with yields of 0.30 and 0.33 g g-1, respectively. Subsequently, the addition time (screened entities) was optimized (8 h) to further increase solvent production up to 18.17 ± 0.19 and 15.5 ± 0.13 g L-1 by using nickel and selenite, respectively. A significant upsurge in butanol dehydrogenase (BDH) levels was observed, which reflected in improved solvent productions. Additionally, a three-dimensional structure of BDH was also constructed using homology modeling and subsequently docked with substrate, cofactor, and metal ion to investigate proper orientation and molecular interactions.
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Affiliation(s)
- Pranhita
R. Nimbalkar
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University P.O.
Box 16100, FI-00076 Aalto, Finland
- Department
of Chemical Engineering, Bharati Vidyapeeth
Deemed University College of Engineering, Pune 411043, India
| | - Manisha A. Khedkar
- Department
of Chemical Engineering, Bharati Vidyapeeth
Deemed University College of Engineering, Pune 411043, India
| | | | - Vijaya K. Chandgude
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University P.O.
Box 16100, FI-00076 Aalto, Finland
| | - Kailas D. Sonawane
- Department
of Microbiology, Shivaji University, Kolhapur 416004, India
- Department
of Biochemistry, Structural Bioinformatics Unit, Shivaji University, Kolhapur 416004, India
| | - Prakash V. Chavan
- Department
of Chemical Engineering, Bharati Vidyapeeth
Deemed University College of Engineering, Pune 411043, India
| | - Sandip B. Bankar
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University P.O.
Box 16100, FI-00076 Aalto, Finland
- E-mail: ; . Tel.: +358 505777898
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39
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Yang M, Xu M, Nan Y, Kuittinen S, Kamrul Hassan M, Vepsäläinen J, Xin D, Zhang J, Pappinen A. Influence of size reduction treatments on sugar recovery from Norway spruce for butanol production. BIORESOURCE TECHNOLOGY 2018; 257:113-120. [PMID: 29494838 DOI: 10.1016/j.biortech.2018.02.072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/13/2018] [Accepted: 02/14/2018] [Indexed: 06/08/2023]
Abstract
This study investigated whether the effectiveness of pretreatment is limited by a size reduction of Norway spruce wood in biobutanol production. The spruce was milled, chipped, and mashed for hydrogen peroxide-acetic acid (HPAC) and dilute acid (DA) pretreatment. Sugar recoveries from chipped and mashed spruce after enzymatic hydrolysis were higher than from milled spruce, and the recoveries were not correlated with the spruce fiber length. HPAC pretreatment resulted in almost 100% glucose and 88% total reducing sugars recoveries from chipped spruce, which were apparently higher than DA pretreatment, demonstrating greater effectiveness of HPAC pretreatment on sugar production. The butanol and ABE yield from chipped spruce were 126.5 and 201.2 g/kg pretreated spruce, respectively. The yields decreased with decreasing particle size due to biomass loss in the pretreatment. The results suggested that Norway spruce chipped to a 20 mm length is applicable to the production of platform sugars for butanol fermentation.
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Affiliation(s)
- Ming Yang
- College of Forestry, Northwest A&F University, 3 Taicheng Road, 712100 Yangling, China; School of Forest Sciences, University of Eastern Finland, P.O. Box 111, FI80101 Joensuu, Finland
| | - Minyuan Xu
- School of Forest Sciences, University of Eastern Finland, P.O. Box 111, FI80101 Joensuu, Finland
| | - Yufei Nan
- College of Forestry, Northwest A&F University, 3 Taicheng Road, 712100 Yangling, China
| | - Suvi Kuittinen
- School of Forest Sciences, University of Eastern Finland, P.O. Box 111, FI80101 Joensuu, Finland
| | - Md Kamrul Hassan
- School of Forest Sciences, University of Eastern Finland, P.O. Box 111, FI80101 Joensuu, Finland
| | - Jouko Vepsäläinen
- School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI70211 Kuopio, Finland
| | - Donglin Xin
- College of Forestry, Northwest A&F University, 3 Taicheng Road, 712100 Yangling, China
| | - Junhua Zhang
- College of Forestry, Northwest A&F University, 3 Taicheng Road, 712100 Yangling, China.
| | - Ari Pappinen
- School of Forest Sciences, University of Eastern Finland, P.O. Box 111, FI80101 Joensuu, Finland
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40
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Khlestkin VK, Peltek SE, Kolchanov NA. Review of direct chemical and biochemical transformations of starch. Carbohydr Polym 2018; 181:460-476. [DOI: 10.1016/j.carbpol.2017.10.035] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/04/2017] [Accepted: 10/07/2017] [Indexed: 01/19/2023]
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41
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Wu X, Fang G, Tong Y, Jiang D, Liang Z, Leng W, Liu L, Tu P, Wang H, Ni J, Li X. Catalytic Upgrading of Ethanol to n-Butanol: Progress in Catalyst Development. CHEMSUSCHEM 2018; 11:71-85. [PMID: 28895302 DOI: 10.1002/cssc.201701590] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 09/10/2017] [Indexed: 05/27/2023]
Abstract
Because n-butanol as a fuel additive has more advantageous physicochemical properties than those of ethanol, ethanol valorization to n-butanol through homo- or heterogeneous catalysis has received much attention in recent decades in both scientific and industrial fields. Recent progress in catalyst development for upgrading ethanol to n-butanol, which involves homogeneous catalysts, such as iridium and ruthenium complexes, and heterogeneous catalysts, including metal oxides, hydroxyapatite (HAP), and, in particular, supported metal catalysts, is reviewed herein. The structure-activity relationships of catalysts and underlying reaction mechanisms are critically examined, and future research directions on the design and improvement of catalysts are also proposed.
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Affiliation(s)
- Xianyuan Wu
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Geqian Fang
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Yuqin Tong
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Dahao Jiang
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Zhe Liang
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Wenhua Leng
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Liu Liu
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Pengxiang Tu
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Hongjing Wang
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Jun Ni
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Xiaonian Li
- Institute of Industrial Catalysis, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
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42
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Azimi H, Tezel FH, Thibault J. The impact of pH on VLE, pervaporation, and adsorption of butyric acid in dilute solutions. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.23093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hoda Azimi
- Department of Chemical and Biological Engineering; University of Ottawa; Ottawa, ON K1N 6N5 Canada
| | - F. Handan Tezel
- Department of Chemical and Biological Engineering; University of Ottawa; Ottawa, ON K1N 6N5 Canada
| | - Jules Thibault
- Department of Chemical and Biological Engineering; University of Ottawa; Ottawa, ON K1N 6N5 Canada
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43
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Cauliflower waste utilization for sustainable biobutanol production: revelation of drying kinetics and bioprocess development. Bioprocess Biosyst Eng 2017; 40:1493-1506. [PMID: 28674730 DOI: 10.1007/s00449-017-1806-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 06/18/2017] [Indexed: 01/03/2023]
Abstract
Efficient yet economic production of biofuel(s) using varied second-generation feedstock needs to be explored in the current scenario to cope up with global fuel demand. Hence, the present study was performed to reveal the use of cauliflower waste for acetone-butanol-ethanol (ABE) production using Clostridium acetobutylicum NRRL B 527. The proximate analysis of cauliflower waste demonstrated to comprise 17.32% cellulose, 9.12% hemicellulose, and 5.94% lignin. Drying of cauliflower waste was carried out in the temperature range of 60-120 °C to investigate its effect on ABE production. The experimental drying data were simulated using moisture diffusion control model. The cauliflower waste dried at 80 °C showed maximum total sugar yield of 26.05 g L-1. Furthermore, the removal of phenolics, acetic acid, and total furans was found to be 90-97, 10-40, and 95-97%, respectively. Incidentally, maximum ABE titer obtained was 5.35 g L-1 with 50% sugar utilization.
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44
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Basu A, Xin F, Lim TK, Lin Q, Yang KL, He J. Quantitative proteome profiles help reveal efficient xylose utilization mechanisms in solventogenic Clostridium sp. strain BOH3. Biotechnol Bioeng 2017; 114:1959-1969. [PMID: 28475235 DOI: 10.1002/bit.26332] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 04/13/2017] [Accepted: 05/01/2017] [Indexed: 11/09/2022]
Abstract
Development of sustainable biobutanol production platforms from lignocellulosic materials is impeded by inefficient five carbon sugar uptake by solventogenic bacteria. The recently isolated Clostridium sp. strain BOH3 is particularly advantaged in this regard as it serves as a model organism which can simultaneously utilize both glucose and xylose for high butanol (>15 g/L) production. Strain BOH3 was, therefore, investigated for its metabolic mechanisms for efficient five carbon sugar uptake using a quantitative proteomics based approach. The proteomics data show that proteins within the CAC1341-1349 operon play a pivotal role for efficient xylose uptake within the cells to produce butanol. Furthermore, up-regulation of key enzymes within the riboflavin synthesis pathway explained that xylose could induce higher riboflavin production capability of the bacteria (e.g., ∼80 mg/L from glucose vs. ∼120 mg/L from xylose). Overall results from the present experimental approach indicated that xylose-fed BOH3 cultures are subjected to high levels of redox stress which coupled with the solvent stress-trigger a sporulation response within the cells earlier than the glucose-fed cultures. The study lays the platform for metabolic engineering strategies in designing organisms for efficient butanol and other value-added chemicals such as riboflavin production. Biotechnol. Bioeng. 2017;114: 1959-1969. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Anindya Basu
- Department of Civil and Environmental Engineering, National University of Singapore, Block E2-02-13, 1 Engineering Drive 3, Singapore, 117576, Republic of Singapore.,School of Pharmaceutical Sciences, Rajiv Gandhi Technical University, Bhopal, M.P., India
| | - Fengxue Xin
- Department of Civil and Environmental Engineering, National University of Singapore, Block E2-02-13, 1 Engineering Drive 3, Singapore, 117576, Republic of Singapore
| | - Teck Kwang Lim
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Qingsong Lin
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Kun-Lin Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
| | - Jianzhong He
- Department of Civil and Environmental Engineering, National University of Singapore, Block E2-02-13, 1 Engineering Drive 3, Singapore, 117576, Republic of Singapore
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45
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New Insight into Sugarcane Industry Waste Utilization (Press Mud) for Cleaner Biobutanol Production by Using C. acetobutylicum NRRL B-527. Appl Biochem Biotechnol 2017; 183:1008-1025. [PMID: 28474218 DOI: 10.1007/s12010-017-2479-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 04/11/2017] [Indexed: 01/24/2023]
Abstract
In the present study, press mud, a sugar industry waste, was explored for biobutanol production to strengthen agricultural economy. The fermentative production of biobutanol was investigated via series of steps, viz. characterization, drying, acid hydrolysis, detoxification, and fermentation. Press mud contains an adequate amount of cellulose (22.3%) and hemicellulose (21.67%) on dry basis, and hence, it can be utilized for further acetone-butanol-ethanol (ABE) production. Drying experiments were conducted in the temperature range of 60-120 °C to circumvent microbial spoilage and enhance storability of press mud. Furthermore, acidic pretreatment variables, viz. sulfuric acid concentration, solid to liquid ratio, and time, were optimized using response surface methodology. The corresponding values were found to be 1.5% (v/v), 1:5 g/mL, and 15 min, respectively. In addition, detoxification studies were also conducted using activated charcoal, which removed almost 93-97% phenolics and around 98% furans, which are toxic to microorganisms during fermentation. Finally, the batch fermentation of detoxified press mud slurry (the sample dried at 100 °C and pretreated) using Clostridium acetobutylicum NRRL B-527 resulted in a higher butanol production of 4.43 g/L with a total ABE of 6.69 g/L.
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46
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Khedkar MA, Nimbalkar PR, Gaikwad SG, Chavan PV, Bankar SB. Sustainable biobutanol production from pineapple waste by using Clostridium acetobutylicum B 527: Drying kinetics study. BIORESOURCE TECHNOLOGY 2017; 225:359-366. [PMID: 27939964 DOI: 10.1016/j.biortech.2016.11.058] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/12/2016] [Accepted: 11/14/2016] [Indexed: 05/23/2023]
Abstract
Present investigation explores the use of pineapple peel, a food industry waste, for acetone-butanol-ethanol (ABE) production using Clostridium acetobutylicum B 527. Proximate analysis of pineapple peel shows that it contains 35% cellulose, 19% hemicellulose, and 16% lignin on dry basis. Drying experiments on pineapple peel waste were carried out in the temperature range of 60-120°C and experimental drying data was modeled using moisture diffusion control model to study its effect on ABE production. The production of ABE was further accomplished via acid hydrolysis, detoxification, and fermentation process. Maximum total sugar release obtained by using acid hydrolysis was 97g/L with 95-97% and 10-50% removal of phenolics and acetic acid, respectively during detoxification process. The maximum ABE titer obtained was 5.23g/L with 55.6% substrate consumption when samples dried at 120°C were used as a substrate (after detoxification).
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Affiliation(s)
- Manisha A Khedkar
- Department of Chemical Engineering, College of Engineering, Bharati Vidyapeeth University, Dhankawadi, Pune-Satara Road, Pune 411 043, India
| | - Pranhita R Nimbalkar
- Department of Chemical Engineering, College of Engineering, Bharati Vidyapeeth University, Dhankawadi, Pune-Satara Road, Pune 411 043, India
| | - Shashank G Gaikwad
- Chemical Engineering and Process Development, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
| | - Prakash V Chavan
- Department of Chemical Engineering, College of Engineering, Bharati Vidyapeeth University, Dhankawadi, Pune-Satara Road, Pune 411 043, India
| | - Sandip B Bankar
- Department of Chemical Engineering, College of Engineering, Bharati Vidyapeeth University, Dhankawadi, Pune-Satara Road, Pune 411 043, India; Department of Biotechnology and Chemical Technology, School of Chemical Technology, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland.
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47
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Zhuang W, Liu X, Yang J, Wu J, Zhou J, Chen Y, Liu D, Ying H. Immobilization of Clostridium acetobutylicum onto natural textiles and its fermentation properties. Microb Biotechnol 2017; 10:502-512. [PMID: 28112488 PMCID: PMC5328812 DOI: 10.1111/1751-7915.12557] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 10/25/2016] [Accepted: 11/14/2016] [Indexed: 11/30/2022] Open
Abstract
Immobilized fermentation has several advantages over traditional suspended fermentation, including simple and continuous operation, improved fermentation performance and reduced cost. Carrier is the most adjustable element among three elements of immobilized fermentation, including carrier, bacteria and environment. In this study, we characterized carrier roughness and surface properties of four types of natural fibres, including linen, cotton, bamboo fibre and silk, to assess their effects on cell immobilization, fermentation performance and stability. Linen with higher specific surface area and roughness could adsorb more bacteria during immobilized fermentation, thereby improving fermentation performance; thus, linen was selected as a suitable carrier and was applied for acetone–butanol–ethanol (ABE) fermentation. To further improve fermentation performance, we also found that microbes of Clostridium acetobutylicum were negatively charged surfaces during fermentation. Therefore, we then modified linen with polyetherimide (PEI) and steric acid (SA) to increase surface positive charge and improve surface property. During ABE fermentation, the adhesion between modified linen and bacteria was increased, adsorption was increased about twofold compared with that of unmodified linen, and butanol productivity was increased 8.16% and 6.80% with PEI‐ and SA‐modified linen as carriers respectively.
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Affiliation(s)
- Wei Zhuang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, No. 5, Xinmofan Road, Nanjing, 210009, China.,College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing, 211816, China.,Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing, 211816, China
| | - Xiaojing Liu
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing, 211816, China
| | - Jing Yang
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing, 211816, China
| | - Jinglan Wu
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing, 211816, China
| | - Jingwei Zhou
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing, 211816, China
| | - Yong Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, No. 5, Xinmofan Road, Nanjing, 210009, China.,College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing, 211816, China
| | - Dong Liu
- College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing, 211816, China
| | - Hanjie Ying
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, No. 5, Xinmofan Road, Nanjing, 210009, China.,College of Biotechnology and Pharmaceutical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing, 211816, China.,Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing, 211816, China
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48
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Simplifying multidimensional fermentation dataset analysis and visualization: One step closer to capturing high-quality mutant strains. Sci Rep 2017; 7:39875. [PMID: 28045110 PMCID: PMC5206668 DOI: 10.1038/srep39875] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 11/28/2016] [Indexed: 12/23/2022] Open
Abstract
In this study, we analyzed mutants of Clostridium acetobutylicum, an organism used in a broad range of industrial processes related to biofuel production, to facilitate future studies of bioreactor and bioprocess design and scale-up, which are very important research projects for industrial microbiology applications. To accomplish this, we generated 329 mutant strains and applied principal component analysis (PCA) to fermentation data gathered from these strains to identify a core set of independent features for comparison. By doing so, we were able to explain the differences in the mutant strains' fermentation expression states and simplify the analysis and visualization of the multidimensional datasets related to the strains. Our study has produced a high-efficiency PCA application based on a data analytics tool that is designed to visualize screening results and to support several hundred sets of data on fermentation interactions to assist researchers in more precisely screening and capturing high-quality mutant strains. More importantly, although this study focused on the use of PCA in microbial fermentation engineering, its results are broadly applicable.
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Scotti N, Zaccheria F, Evangelisti C, Psaro R, Ravasio N. Dehydrogenative coupling promoted by copper catalysts: a way to optimise and upgrade bio-alcohols. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02670b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A one-pot one-step transformation of butanol into butyl butanoate takes place with excellent yield on a Cu/ZrO2 catalyst.
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Affiliation(s)
- Nicola Scotti
- CNR Institute of Molecular Sciences and Technology
- 20133 Milano
- Italy
| | | | | | - Rinaldo Psaro
- CNR Institute of Molecular Sciences and Technology
- 20133 Milano
- Italy
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Structure and Transport Properties of Mixed-Matrix Membranes Based on Polyimides with ZrO₂ Nanostars. Polymers (Basel) 2016; 8:polym8110403. [PMID: 30974679 PMCID: PMC6431868 DOI: 10.3390/polym8110403] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 11/09/2016] [Accepted: 11/10/2016] [Indexed: 12/02/2022] Open
Abstract
Mixed-matrix membranes based on amorphous and semi-crystalline polyimides with zirconium dioxide (ZrO2) nanostars were synthesized. Amorphous poly(4,4′-oxydiphenylenepyromellitimide) and semi-crystalline polyimide prepared from 1,4-bis(4-aminophenoxy)benzene and 4,4’-oxydiphthalic anhydride were used. The effect of ZrO2 nanostars on the structure and morphology of nanocomposite membranes was studied by wide-angle X-ray scattering, scanning electron microscopy, atomic force microscopy, and contact angle measurements. Thermal properties and stability were investigated by thermogravimetric analysis and differential scanning calorimetry. Transport properties of hybrid membranes containing 5 wt % ZrO2 were tested for pervaporation of a mixture of butanol–water with 10 wt % H2O content. It was found that a significant amount of the ZrO2 added to the semi-crystalline polyimide is encapsulated inside spherulites. Therefore, the beneficial influence of inorganic filler on the selectivity of mixed-matrix membrane with respect to water was hampered. Mixed-matrix membranes based on amorphous polymer demonstrated the best performance, because water molecules had higher access to inorganic particles.
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