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Saba B, Bharathidasan AK, Ezeji TC, Cornish K. Characterization and potential valorization of industrial food processing wastes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 868:161550. [PMID: 36652966 DOI: 10.1016/j.scitotenv.2023.161550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/04/2023] [Accepted: 01/07/2023] [Indexed: 06/17/2023]
Abstract
Valorization and utilization of industrial food processing waste as value added products, platform chemicals and biofuels, are needed to improve sustainability and reduce waste management costs. Various industrial food waste stream samples were characterized with respect to their physico-chemical characteristics and elemental composition. A subset of starchy food wastes and milk dust powder were evaluated in batch fermentation to acetone, a useful platform chemical. Production levels were similar to acetone produced from glucose but were achieved more quickly. Lactose concentration negatively affected fermentation and led to 50 % lower acetone concentration from milk dust powder than from starchy wastes. Uncooked starch waste can produce 20 % more acetone than cooked and modified starch waste. Fatty waste and mineral waste can be digested anaerobically generating biogas. Calorific value of soybean waste was 40 MJ/kg sufficiently high for biodiesel production. Low C/N ratios of wastewater and solids from food processing waste makes them unsuitable for anaerobic digestion but these waste types can be converted thermochemically to hydrochar and used as soil amendments. Low calorific content (10-15 MJ/kg) vegetable wastes also are not ideal for energy production, but are rich in flavonoids, antioxidants and pigments which can be extracted as valuable products. A model mapping food waste characteristics to best valorization pathway was developed to guide waste management and future cost and environmental impact analyses. These findings will help advance food industry knowledge and improve sustainable food production through valorized processing waste management.
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Affiliation(s)
- Beenish Saba
- Department of Food, Agricultural and Biological Engineering, The Ohio State University, 590 Woody Hayes Drive, Columbus, OH 43210, USA
| | - Ashok K Bharathidasan
- Department of Food, Agricultural and Biological Engineering, The Ohio State University, 590 Woody Hayes Drive, Columbus, OH 43210, USA
| | - Thaddeus C Ezeji
- Department of Animal Science, Ohio Agricultural Research and Development Center, CFAES Wooster Campus, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA
| | - Katrina Cornish
- Department of Food, Agricultural and Biological Engineering, The Ohio State University, 590 Woody Hayes Drive, Columbus, OH 43210, USA; Department of Horticulture and Crop Science, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA; Department of Food, Agricultural and Biological Engineering, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA.
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2
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Metabolic engineering for the production of butanol, a potential advanced biofuel, from renewable resources. Biochem Soc Trans 2021; 48:2283-2293. [PMID: 32897293 DOI: 10.1042/bst20200603] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 12/20/2022]
Abstract
Butanol is an important chemical and potential fuel. For more than 100 years, acetone-butanol-ethanol (ABE) fermentation of Clostridium strains has been the most successful process for biological butanol production. In recent years, other microbes have been engineered to produce butanol as well, among which Escherichia coli was the best one. Considering the crude oil price fluctuation, minimizing the cost of butanol production is of highest priority for its industrial application. Therefore, using cheaper feedstocks instead of pure sugars is an important project. In this review, we summarized butanol production from different renewable resources, such as industrial and food waste, lignocellulosic biomass, syngas and other renewable resources. This review will present the current progress in this field and provide insights for further engineering efforts on renewable butanol production.
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3
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Seo SO, Lu T, Jin YS, Blaschek HP. A comparative phenotypic and genomic analysis of Clostridium beijerinckii mutant with enhanced solvent production. J Biotechnol 2021; 329:49-55. [PMID: 33556425 DOI: 10.1016/j.jbiotec.2021.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/24/2021] [Accepted: 02/01/2021] [Indexed: 12/14/2022]
Abstract
The acetone-butanol-ethanol (ABE) fermentation by solventogenic clostridia has a long history of industrial butanol production. The Clostridium beijerinckii mutant BA101 has been widely studied for ABE fermentation owing to its enhanced butanol production capacity. Here, we characterized the BA101 mutant under controlled environmental conditions in parallel with the parental strain C. beijerinckii NCIMB 8052. To investigate the correlation between phenotype and genotype, we carried out the genome sequencing of BA101. Through comparative genomic analysis, several mutations in the genes encoding transcriptional regulator, sensor kinase, and phosphatase were identified in the BA101 genome as well as other sibling mutants. Among them, the SNP in the Cbei_3078 gene encoding PAS/PAC sensor hybrid histidine kinase was unique to the BA101 strain. The identified mutations relevant to the observed physiological behaviors of BA101 could be potential genetic targets for rational engineering of solventogenic clostridia toward desired phenotypes.
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Affiliation(s)
- Seung-Oh Seo
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Department of Food Science and Nutrition, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Ting Lu
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Department of Bioengineering and Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Yong-Su Jin
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
| | - Hans P Blaschek
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
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Dutta S, Ghosh S, Manna D, Chowdhury R. Energy and environmental performance of a near-zero-effluent rice straw to butanol production plant. Chem Ind 2020. [DOI: 10.1080/00194506.2020.1831406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Sambit Dutta
- Chemical Engineering Department, Jadavpur University, Kolkata, India
| | - Shiladitya Ghosh
- Chemical Engineering Department, Jadavpur University, Kolkata, India
| | - Dinabandhu Manna
- Chemical Engineering Department, Jadavpur University, Kolkata, India
| | - Ranjana Chowdhury
- Chemical Engineering Department, Jadavpur University, Kolkata, India
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5
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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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6
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Poe NE, Yu D, Jin Q, Ponder MA, Stewart AC, Ogejo JA, Wang H, Huang H. Compositional variability of food wastes and its effects on acetone-butanol-ethanol fermentation. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 107:150-158. [PMID: 32283489 DOI: 10.1016/j.wasman.2020.03.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/26/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
Converting food waste into butanol via acetone, butanol, and ethanol (ABE) fermentation provides the potential to recover energy and value-added chemicals from food waste. However, the high variability of food waste compositions has hindered the consistency and predictability of butanol production, impeding the development of a robust industrial fermentation process. This study characterized the compositional variation of collected food wastes and determined correlations between food waste compositional attributes and butanol yields for a better prediction of food waste fermentation with Clostridium. The total sugar, starch, fiber, crude protein, fat and ash contents (on dry basis) in the food waste samples were in a range of 0.5-53.5%, 0-25.2%, 0.6-26.9%, 5.5-21.5%, 0.1-37.9%, and 1.4-13.7%, respectively. The high variability of food waste composition resulted in a wide range (3.5-11.5 g/L) of butanol concentrations with an average of 8.2 g/L. Pearson's correlation analysis revealed that the butanol concentrations were strongly and positively correlated with equivalent glucose and starch contents in food waste, strongly and negatively correlated with fiber content, and weakly correlated with total sugar, protein, fat, and ash contents. The regression models constructed based on equivalent glucose and fiber contents reasonably predicted the butanol concentration, with the R2 of 0.80. Our study investigated the variability of food waste composition and, for the first time, unveiled relationships between food waste compositional attributes and fermentation yields, contributing to a greater understanding of food waste fermentation, which, in turn, assists in developing new strategies for increased consistency and predictability of food waste fermentation.
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Affiliation(s)
- Nicholas E Poe
- Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Dajun Yu
- Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Qing Jin
- Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Monica A Ponder
- Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Amanda C Stewart
- Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Jactone A Ogejo
- Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Hengjian Wang
- Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Haibo Huang
- Department of Food Science and Technology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
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7
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Abo BO, Gao M, Wang Y, Wu C, Wang Q, Ma H. Production of butanol from biomass: recent advances and future prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:20164-20182. [PMID: 31115808 DOI: 10.1007/s11356-019-05437-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 05/09/2019] [Indexed: 05/24/2023]
Abstract
At present, diminishing oil resources and increasing environmental concerns have led to a shift toward the production of alternative biofuels. In the last few decades, butanol, as liquid biofuel, has received considerable research attention due to its advantages over ethanol. Several studies have focused on the production of butanol through the fermentation from raw renewable biomass, such as lignocellulosic materials. However, the low concentration and productivity of butanol production and the price of raw materials are limitations for butanol fermentation. Moreover, these limitations are the main causes of industrial decline in butanol production. This study reviews butanol fermentation, including the metabolism and characteristics of acetone-butanol-ethanol (ABE) producing clostridia. Furthermore, types of butanol production from biomass feedstock are detailed in this study. Specifically, this study introduces the recent progress on the efficient butanol production of "designed" and modified biomass. Additionally, the recent advances in the butanol fermentation process, such as multistage continuous fermentation, metabolic flow change of the electron carrier supplement, continuous fermentation with immobilization and recycling of cell, and the recent technical separation of the products from the fermentation broth, are described in this study.
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Affiliation(s)
- Bodjui Olivier Abo
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing, 100083, China
| | - Ming Gao
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing, 100083, China
- Beijing Key Laboratory on Disposal and Resource Recovery of Industry Typical Pollutants, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yonglin Wang
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing, 100083, China
| | - Chuanfu Wu
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing, 100083, China
- Beijing Key Laboratory on Disposal and Resource Recovery of Industry Typical Pollutants, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qunhui Wang
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing, 100083, China
- Beijing Key Laboratory on Disposal and Resource Recovery of Industry Typical Pollutants, University of Science and Technology Beijing, Beijing, 100083, China
| | - Hongzhi Ma
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing, 100083, China.
- Beijing Key Laboratory on Disposal and Resource Recovery of Industry Typical Pollutants, University of Science and Technology Beijing, Beijing, 100083, China.
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8
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Continuous Butanol Fermentation of Dilute Acid-Pretreated De-oiled Rice Bran by Clostridium acetobutylicum YM1. Sci Rep 2019; 9:4622. [PMID: 30874578 PMCID: PMC6420626 DOI: 10.1038/s41598-019-40840-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 12/10/2018] [Indexed: 01/21/2023] Open
Abstract
Continuous fermentation of dilute acid-pretreated de-oiled rice bran (DRB) to butanol by the Clostridium acetobutylicum YM1 strain was investigated. Pretreatment of DRB with dilute sulfuric acid (1%) resulted in the production of 42.12 g/L total sugars, including 25.57 g/L glucose, 15.1 g/L xylose and 1.46 g/L cellobiose. Pretreated-DRB (SADRB) was used as a fermentation medium at various dilution rates, and a dilution rate of 0.02 h-1 was optimal for solvent production, in which 11.18 g/L of total solvent was produced (acetone 4.37 g/L, butanol 5.89 g/L and ethanol 0.92 g/L). Detoxification of SADRB with activated charcoal resulted in the high removal of fermentation inhibitory compounds. Fermentation of detoxified-SADRB in continuous fermentation with a dilution rate of 0.02 h-1 achieved higher concentrations of solvent (12.42 g/L) and butanol (6.87 g/L), respectively, with a solvent productivity of 0.248 g/L.h. This study showed that the solvent concentration and productivity in continuous fermentation from SADRB was higher than that obtained from batch culture fermentation. This study also provides an economic assessment for butanol production in continuous fermentation process from DRB to validate the commercial viability of this process.
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9
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Amiri H, Karimi K. Pretreatment and hydrolysis of lignocellulosic wastes for butanol production: Challenges and perspectives. BIORESOURCE TECHNOLOGY 2018; 270:702-721. [PMID: 30195696 DOI: 10.1016/j.biortech.2018.08.117] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/27/2018] [Accepted: 08/29/2018] [Indexed: 06/08/2023]
Abstract
Butanol is acknowledged as a drop-in biofuel that can be used in the existing transportation infrastructure, addressing the needs for sustainable liquid fuel. However, before becoming a thoughtful alternative for fossil fuel, butanol should be produced efficiently from a widely-available, renewable, and cost-effective source. In this regard, lignocellulosic materials, the main component of organic wastes from agriculture, forestry, municipalities, and even industries seems to be the most promising source. The butanol-producing bacteria, i.e., Clostridia sp., can uptake a wide range of hexoses, pentoses, and oligomers obtained from hydrolysis of cellulose and hemicellulose content of lignocelluloses. The present work is dedicated to reviewing different processes containing pretreatment and hydrolysis of hemicellulose and cellulose developed for preparing fermentable hydrolysates for biobutanol production.
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Affiliation(s)
- Hamid Amiri
- Department of Biotechnology, Faculty of Advanced Sciences and Technologies, University of Isfahan, Isfahan 81746-73441, Iran; Environmental Research Institute, University of Isfahan, Isfahan 81746-73441, Iran.
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
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Butyrate-based n-butanol production from an engineered Shewanella oneidensis MR-1. Bioprocess Biosyst Eng 2018; 41:1195-1204. [PMID: 29737409 DOI: 10.1007/s00449-018-1948-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 04/28/2018] [Indexed: 12/15/2022]
Abstract
n-Butanol is considered as the next-generation biofuel, because its physiochemical properties are very similar to fossil fuels and it could be produced by Clostridia under anaerobic culture. Due to the difficulties of strict anaerobic culture, a host which can be used with facultative environment was being searched for n-butanol production. As an alternative, Shewanella oneidensis MR-1, which is known as facultative bacteria, was selected as a host and studied. A plasmid containing adhE2 encoding alcohol dehydrogenase, various CoA transferases (ctfAB, atoAD, pct, and ACT), and acs encoding acetyl-CoA synthetase were introduced and examined to S. oneidensis MR-1 to produce n-butanol. As a result, ctfAB, acs, and adhE2 overexpression in S. oneidensis-pJM102 showed the highest n-butanol production in the presence of 2% of N-acetylglucosamine (NAG), 0.3% of butyrate, and 0.1 mM of IPTG for 96 h under microaerobic condition. When more NAG and butyrate were fed, n-butanol production was enhanced, producing up to 160 mg/L of n-butanol. When metal ions or extra electrons were added to S. oneidensis-pJM102 for n-butanol production, metal ion as electron acceptor or supply of extra electron showed no significant effect on n-butanol production. Overall, we made a newly engineered S. oneidensis that could utilize NAG and butyrate to produce n-butanol. It could be used in further microaerobic condition and electricity supply studies.
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Nanda S, Golemi-Kotra D, McDermott JC, Dalai AK, Gökalp I, Kozinski JA. Fermentative production of butanol: Perspectives on synthetic biology. N Biotechnol 2017; 37:210-221. [DOI: 10.1016/j.nbt.2017.02.006] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 02/20/2017] [Accepted: 02/22/2017] [Indexed: 11/25/2022]
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12
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Lv J, Jiao S, Du R, Zhang R, Zhang Y, Han B. Proteomic analysis to elucidate degeneration of Clostridium beijerinckii NCIMB 8052 and role of Ca(2+) in strain recovery from degeneration. J Ind Microbiol Biotechnol 2016; 43:741-50. [PMID: 27021843 DOI: 10.1007/s10295-016-1754-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 02/29/2016] [Indexed: 10/22/2022]
Abstract
Degeneration of solventogenic Clostridium strains is one of the major barriers in bio-butanol production. A degenerated Clostridium beijerinckii NCIMB 8052 strain (DG-8052) was obtained without any genetic manipulation. Supplementation of CaCO3 to fermentation medium could partially recover metabolism of DG-8052 by more than 50 % increase of cell growth and solvent production. This study investigated the protein expression profile of DG-8052 and its response to CaCO3 treatment. Compared with WT-8052, the lower expressed proteins were responsible for disruption of RNA secondary structures and DNA repair, sporulation, signal transduction, transcription regulation, and membrane transport in DG-8052. Interestingly, accompanied with the decreased glucose utilization and lower solvent production, there was a decreased level of sigma-54 modulation protein which may indicate that the level of sigma-54 activity may be associated with the observed strain degeneration. For the addition of CaCO3, proteomic and biochemical study results revealed that besides buffer capacity, Ca(2+) could stabilize heat shock proteins, increase DNA synthesis and replication, and enhance expression of solventogenic enzymes in DG-8052, which has a similar contribution in WT-8052.
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Affiliation(s)
- Jia Lv
- School of Public Health, Health Science Center, Xi'an Jiaotong University, NO. 76 Yanta West Road, P.O. 44, Xi'an, 710061, Shaanxi, China
| | - Shengyin Jiao
- School of Public Health, Health Science Center, Xi'an Jiaotong University, NO. 76 Yanta West Road, P.O. 44, Xi'an, 710061, Shaanxi, China
| | - Renjia Du
- School of Public Health, Health Science Center, Xi'an Jiaotong University, NO. 76 Yanta West Road, P.O. 44, Xi'an, 710061, Shaanxi, China
| | - Ruijuan Zhang
- School of Public Health, Health Science Center, Xi'an Jiaotong University, NO. 76 Yanta West Road, P.O. 44, Xi'an, 710061, Shaanxi, China.,Nutrition and Food Safety Engineering Research Center of Shaanxi Province, Xi'an, China
| | - Yan Zhang
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Bei Han
- School of Public Health, Health Science Center, Xi'an Jiaotong University, NO. 76 Yanta West Road, P.O. 44, Xi'an, 710061, Shaanxi, China. .,Nutrition and Food Safety Engineering Research Center of Shaanxi Province, Xi'an, China.
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13
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Heidari F, Asadollahi MA, Jeihanipour A, Kheyrandish M, Rismani-Yazdi H, Karimi K. Biobutanol production using unhydrolyzed waste acorn as a novel substrate. RSC Adv 2016. [DOI: 10.1039/c5ra23941a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Clostridium acetobutylicumcells did not grow on untreated acorn powder but they grew and produced acetone, butanol, and ethanol on tannin-free acorn powder.
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Affiliation(s)
- Fatemeh Heidari
- Department of Biotechnology
- Faculty of Advanced Sciences and Technologies
- University of Isfahan
- Isfahan 81746-73441
- Iran
| | - Mohammad Ali Asadollahi
- Department of Biotechnology
- Faculty of Advanced Sciences and Technologies
- University of Isfahan
- Isfahan 81746-73441
- Iran
| | - Azam Jeihanipour
- Department of Biotechnology
- Faculty of Advanced Sciences and Technologies
- University of Isfahan
- Isfahan 81746-73441
- Iran
| | - Maryam Kheyrandish
- Department of Biotechnology
- Faculty of Advanced Sciences and Technologies
- University of Isfahan
- Isfahan 81746-73441
- Iran
| | | | - Keikhosro Karimi
- Department of Chemical Engineering
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
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14
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Wijayanti H, Duangchan A. Effect of nickel promoter on solvent-free sulphated zirconia catalyst for the esterification of acetic acid withn-butanol. CAN J CHEM ENG 2015. [DOI: 10.1002/cjce.22351] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hesti Wijayanti
- Department of Chemical Engineering; Faculty of Engineering; Kasetsart University; Bangkok, 10900 Thailand
| | - Apinya Duangchan
- Department of Chemical Engineering; Faculty of Engineering; Kasetsart University; Bangkok, 10900 Thailand
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15
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Köhler KAK, Rühl J, Blank LM, Schmid A. Integration of biocatalyst and process engineering for sustainable and efficientn-butanol production. Eng Life Sci 2015. [DOI: 10.1002/elsc.201400041] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
| | - Jana Rühl
- Laboratory of Chemical Biotechnology; TU Dortmund University; Dortmund Germany
| | - Lars M. Blank
- Institute of Applied Microbiology (iAMB); Aachen Biology and Biotechnology (ABBt); RWTH Aachen University; Aachen Germany
| | - Andreas Schmid
- Department Solar Materials; Helmholtz Centre for Environmental Research (UFZ); Leipzig Germany
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16
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Li J, Chen X, Qi B, Luo J, Zhang Y, Su Y, Wan Y. Efficient production of acetone-butanol-ethanol (ABE) from cassava by a fermentation-pervaporation coupled process. BIORESOURCE TECHNOLOGY 2014; 169:251-257. [PMID: 25058301 DOI: 10.1016/j.biortech.2014.06.102] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 06/25/2014] [Accepted: 06/26/2014] [Indexed: 06/03/2023]
Abstract
Production of acetone-butanol-ethanol (ABE) from cassava was investigated with a fermentation-pervaporation (PV) coupled process. ABE products were in situ removed from fermentation broth to alleviate the toxicity of solvent to the Clostridium acetobutylicum DP217. Compared to the batch fermentation without PV, glucose consumption rate and solvent productivity increased by 15% and 21%, respectively, in batch fermentation-PV coupled process, while in continuous fermentation-PV coupled process running for 304 h, the substrate consumption rate, solvent productivity and yield increased by 58%, 81% and 15%, reaching 2.02 g/Lh, 0.76 g/Lh and 0.38 g/g, respectively. Silicalite-1 filled polydimethylsiloxane (PDMS)/polyacrylonitrile (PAN) membrane modules ensured media recycle without significant fouling, steadily generating a highly concentrated ABE solution containing 201.8 g/L ABE with 122.4 g/L butanol. After phase separation, a final product containing 574.3g/L ABE with 501.1g/L butanol was obtained. Therefore, the fermentation-PV coupled process has the potential to decrease the cost in ABE production.
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Affiliation(s)
- Jing Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; College of Biology Science & Engineering, Hebei University of Economics & Business, Shijiazhuang 050061, PR China
| | - Xiangrong Chen
- University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Benkun Qi
- University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jianquan Luo
- University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yuming Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yi Su
- University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yinhua Wan
- University of Chinese Academy of Sciences, Beijing 100049, PR China.
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Gottumukkala LD, Parameswaran B, Valappil SK, Mathiyazhakan K, Pandey A, Sukumaran RK. Biobutanol production from rice straw by a non acetone producing Clostridium sporogenes BE01. BIORESOURCE TECHNOLOGY 2013; 145:182-7. [PMID: 23465538 DOI: 10.1016/j.biortech.2013.01.046] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 01/06/2013] [Accepted: 01/07/2013] [Indexed: 05/24/2023]
Abstract
Biobutanol from lignocellulosic biomass has gained much attention due to several advantages over bioethanol. Though microbial production of butanol through ABE fermentation is an established technology, the use of lignocellulosic biomass as feedstock presents several challenges. In the present study, biobutanol production from enzymatic hydrolysate of acid pretreated rice straw was evaluated using Clostridium sporogenes BE01. This strain gave a butanol yield of 3.43 g/l and a total solvent yield of 5.32 g/l in rice straw hydrolysate supplemented with calcium carbonate and yeast extract. Hydrolysate was analyzed for the level of inhibitors such as acetic acid, formic acid and furfurals which affect the growth of the organism and in turn ABE fermentation. Methods for preconditioning the hydrolysate to remove toxic end products were done so as to improve the fermentation efficiency. Conditions of ABE fermentation were fine tuned resulting in an enhanced biobutanol reaching 5.52 g/l.
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Affiliation(s)
- Lalitha Devi Gottumukkala
- Centre for Biofuels, Biotechnology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Industrial Estate PO, Thiruvananthapuram, India
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Tashiro Y, Yoshida T, Noguchi T, Sonomoto K. Recent advances and future prospects for increased butanol production by acetone-butanol-ethanol fermentation. Eng Life Sci 2013. [DOI: 10.1002/elsc.201200128] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Yukihiro Tashiro
- Laboratory of Soil Microbiology, Division of Applied Molecular Microbiology and Biomass Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School; Kyushu University; Fukuoka Japan
- Institute of Advanced Study; Kyushu University; Fukuoka Japan
| | - Tsuyoshi Yoshida
- Laboratory of Microbial Technology, Division of Applied Molecular Microbiology and Biomass Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School; Kyushu University; Fukuoka Japan
| | - Takuya Noguchi
- Laboratory of Microbial Technology, Division of Applied Molecular Microbiology and Biomass Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School; Kyushu University; Fukuoka Japan
| | - Kenji Sonomoto
- Laboratory of Microbial Technology, Division of Applied Molecular Microbiology and Biomass Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School; Kyushu University; Fukuoka Japan
- Laboratory of Functional Food Design, Department of Functional Metabolic Design, Bio-Architecture Center; Kyushu University; Fukuoka Japan
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Zhao C, Zhang Y, Wei X, Hu Z, Zhu F, Xu L, Luo M, Liu H. Production of ultra-high molecular weight poly-γ-glutamic acid with Bacillus licheniformis P-104 and characterization of its flocculation properties. Appl Biochem Biotechnol 2013; 170:562-72. [PMID: 23553109 DOI: 10.1007/s12010-013-0214-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2012] [Accepted: 03/21/2013] [Indexed: 10/27/2022]
Abstract
A novel strain of Bacillus licheniformis P-104 was isolated from Chinese soybean paste to produce a bioflocculant. The bioflocculant was confirmed as ultra-high molecular weight poly-γ-glutamic acid (γ-PGA) using Fourier transform infrared spectrum, high-performance liquid chromatography, and gel permeation chromatography with multi-angle laser light scattering. The production technology and flocculation properties of γ-PGA were investigated. By fed-batch fermentation in a 7-L bioreactor, the maximum γ-PGA yield reached 41.6 g L(-1) with a productivity rate of 1.07 g L(-1) h(-1). The flocculating activity of γ-PGA for kaolin suspension was 33.5±1.6 1/OD under the optimized flocculation conditions (6 mM Ca(2+), 1.5 mg L(-1) γ-PGA, and pH 6.0). The optimized dosage of γ-PGA for flocculation was just about 30 % of that of reported γ-PGA produced by other strains. Moreover, the flocculation activity of γ-PGA produced by strain P-104 was much higher than commercial γ-PGA with the molecular weight ranging 200-500 kDa and 1,500-2,500 kDa. This study provided a promising strain and an efficient method for production of ultra-high molecular weight γ-PGA which could be used as a potential green bioflocculant.
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Affiliation(s)
- Caifeng Zhao
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
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20
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Abstract
This article surveys methods for the enzymatic conversion of starch, involving hydrolases and nonhydrolyzing enzymes, as well as the role of microorganisms producing such enzymes. The sources of the most common enzymes are listed. These starch conversions are also presented in relation to their applications in the food, pharmaceutical, pulp, textile, and other branches of industry. Some sections are devoted to the fermentation of starch to ethanol and other products, and to the production of cyclodextrins, along with the properties of these products. Light is also shed on the enzymes involved in the digestion of starch in human and animal organisms. Enzymatic processes acting on starch are useful in structural studies of the substrates and in understanding the characteristics of digesting enzymes. One section presents the application of enzymes to these problems. The information that is included covers the period from the early 19th century up to 2009.
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Zheng J, Tashiro Y, Yoshida T, Gao M, Wang Q, Sonomoto K. Continuous butanol fermentation from xylose with high cell density by cell recycling system. BIORESOURCE TECHNOLOGY 2013; 129:360-365. [PMID: 23262012 DOI: 10.1016/j.biortech.2012.11.066] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Revised: 11/12/2012] [Accepted: 11/17/2012] [Indexed: 06/01/2023]
Abstract
A continuous butanol production system with high-density Clostridium saccharoperbutylacetonicum N1-4 generated by cell recycling was established to examine the characteristics of butanol fermentation from xylose. In continuous culture without cell recycling, cell washout was avoided by maintaining pH>5.6 at a dilution rate of 0.26 h(-1), indicating pH control was critical to this experiment. Subsequently, continuous culture with cell recycling increased cell concentration to 17.4 g L(-1), which increased butanol productivity to 1.20 g L(-1) h(-1) at a dilution rate of 0.26 h(-1) from 0.529 g L(-1) h(-1) without cell recycling. The effect of dilution rates on butanol production was also investigated in continuous culture with cell recycling. Maximum butanol productivity (3.32 g L(-1) h(-1)) was observed at a dilution rate of 0.78 h(-1), approximately 6-fold higher than observed in continuous culture without cell recycling (0.529 g L(-1) h(-1)).
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Affiliation(s)
- Jin Zheng
- Laboratory of Microbial Technology, Division of Applied Molecular Microbiology and Biomass Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
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Zhang WL, Liu ZY, Liu Z, Li FL. Butanol production from corncob residue using Clostridium beijerinckii NCIMB 8052. Lett Appl Microbiol 2012; 55:240-6. [PMID: 22738279 DOI: 10.1111/j.1472-765x.2012.03283.x] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS To determine whether corncob residue (CCR) could be a good substrate for butanol production. METHODS AND RESULTS In this study, Ca(OH)₂ detoxification technique was used to remove inhibitors of lignocellulose enzymatic hydrolysis. During fermentation of untreated corncob residue hydrolysate (CCRH) by Clostridium beijerinckii NCIMB 8052, cell growth was inhibited and only 3·8 g l⁻¹ acetone, butanol and ethanol (ABE) was produced. After pretreatment with Ca(OH)₂, enzymatic hydrolysis of CCR resulted in 49·3 g l⁻¹ total sugars, about twofold of that of untreated one. In the fermentation of the Ca(OH)₂-detoxified CCRH, sugar utilization ratio was increased by 27·3%. When using the Ca(OH)₂-detoxified CCRH supplemented with 10 g l⁻¹ glucose, 16·0 g l⁻¹ ABE was produced, resulting in an ABE yield of 0·32 and a productivity of 0·33 g l⁻¹ h⁻¹. CONCLUSION The results in this study suggest that CCR was a good carbon source for ABE fermentation. SIGNIFICANCE AND IMPACT OF THE STUDY It is the first time to use CCR as substrate for butanol production. Ca(OH)₂ detoxification pretreatment was proved to be an effective method to improve enzymatic digestibility of lignocellulose.
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Affiliation(s)
- W L Zhang
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China Graduate University of Chinese Academy of Sciences, Beijing, China
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Zhang Y, Han B, Ezeji TC. Biotransformation of furfural and 5-hydroxymethyl furfural (HMF) by Clostridium acetobutylicum ATCC 824 during butanol fermentation. N Biotechnol 2011; 29:345-51. [PMID: 21925629 DOI: 10.1016/j.nbt.2011.09.001] [Citation(s) in RCA: 134] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2011] [Revised: 08/17/2011] [Accepted: 09/05/2011] [Indexed: 11/26/2022]
Abstract
The ability of fermenting microorganisms to tolerate furan aldehyde inhibitors (furfural and 5-hydroxymethyl furfural (HMF)) will enhance efficient bioconversion of lignocellulosic biomass hydrolysates to fuels and chemicals. The effect of furfural and HMF on butanol production by Clostridium acetobutylicum 824 was investigated. Whereas specific growth rates, μ, of C. acetobutylicum in the presence of furfural and HMF were in the range of 15-85% and 23-78%, respectively, of the uninhibited Control, μ increased by 8-15% and 23-38% following exhaustion of furfural and HMF in the bioreactor. Using high performance liquid chromatography and spectrophotometric assays, batch fermentations revealed that furfural and HMF were converted to furfuryl alcohol and 2,5-bis-hydroxymethylfuran, respectively, with specific conversion rates of 2.13g furfural and 0.50g HMF per g (biomass) per hour, by exponentially growing C. acetobutylicum. Biotransformation of these furans to lesser inhibitory compounds by C. acetobutylicum will probably enhance overall fermentation of lignocellulosic hydrolysates to butanol.
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Affiliation(s)
- Yan Zhang
- The Ohio State University, Department of Animal Sciences and Ohio State Agricultural Research and Development Center (OARDC), 305 Gerlaugh Hall, 1680 Madison Avenue, Wooster, OH 44691, USA
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Guo T, Tang Y, Xi YL, He AY, Sun BJ, Wu H, Liang DF, Jiang M, Ouyang PK. Clostridium beijerinckii mutant obtained by atmospheric pressure glow discharge producing high proportions of butanol and solvent yields. Biotechnol Lett 2011; 33:2379-83. [DOI: 10.1007/s10529-011-0702-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Accepted: 07/08/2011] [Indexed: 10/18/2022]
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25
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Han B, Gopalan V, Ezeji TC. Acetone production in solventogenic Clostridium species: new insights from non-enzymatic decarboxylation of acetoacetate. Appl Microbiol Biotechnol 2011; 91:565-76. [DOI: 10.1007/s00253-011-3276-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 03/24/2011] [Accepted: 03/25/2011] [Indexed: 10/18/2022]
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26
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Krivoruchko A, Siewers V, Nielsen J. Opportunities for yeast metabolic engineering: Lessons from synthetic biology. Biotechnol J 2011; 6:262-76. [DOI: 10.1002/biot.201000308] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2010] [Revised: 01/06/2011] [Accepted: 01/13/2011] [Indexed: 11/08/2022]
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27
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Li SY, Srivastava R, Parnas RS. Study of in situ 1-butanol pervaporation from A-B-E fermentation using a PDMS composite membrane: Validity of solution-diffusion model for pervaporative A-B-E fermentation. Biotechnol Prog 2011; 27:111-20. [DOI: 10.1002/btpr.535] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2010] [Revised: 08/24/2010] [Indexed: 12/18/2022]
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28
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Efficient conversion of lactic acid to butanol with pH-stat continuous lactic acid and glucose feeding method by Clostridium saccharoperbutylacetonicum. Appl Microbiol Biotechnol 2010; 87:1177-85. [DOI: 10.1007/s00253-010-2673-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Revised: 05/06/2010] [Accepted: 05/07/2010] [Indexed: 10/19/2022]
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29
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Biofuel production in Escherichia coli: the role of metabolic engineering and synthetic biology. Appl Microbiol Biotechnol 2010; 86:419-34. [DOI: 10.1007/s00253-010-2446-1] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 01/07/2010] [Accepted: 01/09/2010] [Indexed: 01/06/2023]
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30
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Tran HTM, Cheirsilp B, Hodgson B, Umsakul K. Potential use of Bacillus subtilis in a co-culture with Clostridium butylicum for acetone–butanol–ethanol production from cassava starch. Biochem Eng J 2010. [DOI: 10.1016/j.bej.2009.11.001] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Achievements and perspectives to overcome the poor solvent resistance in acetone and butanol-producing microorganisms. Appl Microbiol Biotechnol 2009; 85:1697-712. [DOI: 10.1007/s00253-009-2390-0] [Citation(s) in RCA: 225] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2009] [Revised: 11/27/2009] [Accepted: 11/28/2009] [Indexed: 11/26/2022]
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32
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Production of Acetone–Butanol–Ethanol (ABE) in Direct Fermentation of Cassava by Clostridium saccharoperbutylacetonicum N1-4. Appl Biochem Biotechnol 2009; 161:157-70. [DOI: 10.1007/s12010-009-8770-1] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2009] [Accepted: 08/31/2009] [Indexed: 10/20/2022]
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33
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Zheng YN, Li LZ, Xian M, Ma YJ, Yang JM, Xu X, He DZ. Problems with the microbial production of butanol. J Ind Microbiol Biotechnol 2009; 36:1127-38. [PMID: 19562394 DOI: 10.1007/s10295-009-0609-9] [Citation(s) in RCA: 143] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2009] [Accepted: 06/04/2009] [Indexed: 10/20/2022]
Abstract
With the incessant fluctuations in oil prices and increasing stress from environmental pollution, renewed attention is being paid to the microbial production of biofuels from renewable sources. As a gasoline substitute, butanol has advantages over traditional fuel ethanol in terms of energy density and hygroscopicity. A variety of cheap substrates have been successfully applied in the production of biobutanol, highlighting the commercial potential of biobutanol development. In this review, in order to better understand the process of acetone-butanol-ethanol production, traditional clostridia fermentation is discussed. Sporulation is probably induced by solvent formation, and the molecular mechanism leading to the initiation of sporulation and solventogenesis is also investigated. Different strategies are employed in the metabolic engineering of clostridia that aim to enhancing solvent production, improve selectivity for butanol production, and increase the tolerance of clostridia to solvents. However, it will be hard to make breakthroughs in the metabolic engineering of clostridia for butanol production without gaining a deeper understanding of the genetic background of clostridia and developing more efficient genetic tools for clostridia. Therefore, increasing attention has been paid to the metabolic engineering of E. coli for butanol production. The importation and expression of a non-clostridial butanol-producing pathway in E. coli is probably the most promising strategy for butanol biosynthesis. Due to the lower butanol titers in the fermentation broth, simultaneous fermentation and product removal techniques have been developed to reduce the cost of butanol recovery. Gas stripping is the best technique for butanol recovery found so far.
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Affiliation(s)
- Yan-Ning Zheng
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 266071 Qingdao, China.
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Qureshi N, Ezeji TC, Ebener J, Dien BS, Cotta MA, Blaschek HP. Butanol production by Clostridium beijerinckii. Part I: use of acid and enzyme hydrolyzed corn fiber. BIORESOURCE TECHNOLOGY 2008; 99:5915-22. [PMID: 18061440 DOI: 10.1016/j.biortech.2007.09.087] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2006] [Revised: 09/17/2007] [Accepted: 09/22/2007] [Indexed: 05/10/2023]
Abstract
Fermentation of sulfuric acid treated corn fiber hydrolysate (SACFH) inhibited cell growth and butanol production (1.7+/-0.2g/L acetone butanol ethanol or ABE) by Clostridium beijerinckii BA101. Treatment of SACFH with XAD-4 resin removed some of the inhibitors resulting in the production of 9.3+/-0.5 g/L ABE and a yield of 0.39+/-0.015. Fermentation of enzyme treated corn fiber hydrolysate (ETCFH) did not reveal any cell inhibition and resulted in the production of 8.6+/-1.0 g/L ABE and used 24.6g/L total sugars. ABE production from fermentation of 25 g/L glucose and 25 g/L xylose was 9.9+/-0.4 and 9.6+/-0.4 g/L, respectively, suggesting that the culture was able to utilize xylose as efficiently as glucose. Production of only 9.3+/-0.5 g/L ABE (compared with 17.7 g/L ABE from fermentation of 55 g/L glucose-control) from the XAD-4 treated SACFH suggested that some fermentation inhibitors may still be present following treatment. It is suggested that inhibitory components be completely removed from the SACFH prior to fermentation with C. beijerinckii BA101. In our fermentations, an ABE yield ranging from 0.35 to 0.39 was obtained, which is higher than reported by the other investigators.
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Affiliation(s)
- Nasib Qureshi
- United States Department of Agriculture(1), National Center for Agricultural Utilization Research, Fermentation/Biotechnology, 1815 N University Street, Peoria, IL 61604, USA
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Abstract
Clostridium acetobutylicum is an anaerobic, spore-forming bacterium with the ability to ferment starch and sugars into solvents. In the past, it has been used for industrial production of acetone and butanol, until cheap crude oil rendered petrochemical synthesis more economically feasible. Both economic (price of crude oil) and environmental aspects (carbon dioxide emissions) have caused the pendulum to swing back again. Molecular biology has allowed a detailed understanding of genes and enzymes, required for solventogenesis. Thus, construction of strains with improved fermentation ability is now possible. Advances in continuous culture technology and improved downstream processing also add to economic advantages of a new biotechnological process. Two major companies have already committed themselves to biobutanol production as a biofuel additive. Thus, butanol fermentation is on the rise again.
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Affiliation(s)
- Peter Dürre
- Institut für Mikrobiologie und Biotechnologie, Universität Ulm, 89069 Ulm, Germany.
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Ezeji T, Blaschek HP. Fermentation of dried distillers' grains and solubles (DDGS) hydrolysates to solvents and value-added products by solventogenic clostridia. BIORESOURCE TECHNOLOGY 2008; 99:5232-42. [PMID: 17967532 DOI: 10.1016/j.biortech.2007.09.032] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Pretreatment and hydrolysis of lignocellulosic biomass using either dilute acid, liquid hot water (LHW), or ammonium fiber expansion (AFEX) results in a complex mixture of sugars such as hexoses (glucose, galactose, mannose), and pentoses (xylose, arabinose). A detailed description of the utilization of representative mixed sugar streams (pentoses and hexoses) and their sugar preferences by the solventogenic clostridia (Clostridium beijerinckii BA101, C. acetobutylicum 260, C. acetobutylicum 824, Clostridium saccharobutylicum 262, and C. butylicum 592) is presented. In these experiments, all the sugars were utilized concurrently throughout the fermentation, although the rate of sugar utilization was sugar specific. For all clostridia tested, the rate of glucose utilization was higher than for the other sugars in the mixture. In addition, the availability of excess fermentable sugars in the bioreactor is necessary for both the onset and the maintenance of solvent production otherwise the fermentation will become acidogenic leading to premature termination of the fermentation process. During an investigation on the effect of some of the known lignocellulosic hydrolysate inhibitors on the growth and ABE production by clostridia, ferulic and p-coumaric acids were found to be potent inhibitors of growth and ABE production. Interestingly, furfural and HMF were not inhibitory to the solventogenic clostridia; rather they had a stimulatory effect on growth and ABE production at concentrations up to 2.0g/L.
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Affiliation(s)
- Thaddeus Ezeji
- University of Illinois, Biotechnology and Bioengineering Group, Center for Advanced Bioenergy Research and Department of Food Science and Human Nutrition, 1207 W Gregory Drive, Urbana, IL 61801, USA
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Kim Y, Mosier NS, Hendrickson R, Ezeji T, Blaschek H, Dien B, Cotta M, Dale B, Ladisch MR. Composition of corn dry-grind ethanol by-products: DDGS, wet cake, and thin stillage. BIORESOURCE TECHNOLOGY 2008; 99:5165-76. [PMID: 17988859 DOI: 10.1016/j.biortech.2007.09.028] [Citation(s) in RCA: 144] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
DDGS and wet distillers' grains are the major co-products of the dry grind ethanol facilities. As they are mainly used as animal feed, a typical compositional analysis of the DDGS and wet distillers' grains mainly focuses on defining the feedstock's nutritional characteristics. With an increasing demand for fuel ethanol, the DDGS and wet distillers' grains are viewed as a potential bridge feedstock for ethanol production from other cellulosic biomass. The introduction of DDGS or wet distillers' grains as an additional feed to the existing dry grind plants for increased ethanol yield requires a different approach to the compositional analysis of the material. Rather than focusing on its nutritional value, this new approach aims at determining more detailed chemical composition, especially on polymeric sugars such as cellulose, starch and xylan, which release fermentable sugars upon enzymatic hydrolysis. In this paper we present a detailed and complete compositional analysis procedure suggested for DDGS and wet distillers' grains, as well as the resulting compositions completed by three different research groups. Polymeric sugars, crude protein, crude oil and ash contents of DDGS and wet distillers' grains were accurately and reproducibly determined by the compositional analysis procedure described in this paper.
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Affiliation(s)
- Youngmi Kim
- Laboratory of Renewable Resources Engineering, Potter Engineering Center, 500 Central Drive, Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN 47907-2022, USA
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38
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Biofuel alternatives to ethanol: pumping the microbial well. Trends Biotechnol 2008; 26:375-81. [DOI: 10.1016/j.tibtech.2008.03.008] [Citation(s) in RCA: 291] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2007] [Revised: 03/18/2008] [Accepted: 03/25/2008] [Indexed: 11/19/2022]
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Production of acetone butanol (AB) from liquefied corn starch, a commercial substrate, using Clostridium beijerinckii coupled with product recovery by gas stripping. J Ind Microbiol Biotechnol 2007; 34:771-7. [DOI: 10.1007/s10295-007-0253-1] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2007] [Accepted: 08/30/2007] [Indexed: 10/22/2022]
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40
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Ezeji TC, Bahl H. Production of raw-starch-hydrolysing α-amylase from the newly isolated Geobacillus thermodenitrificans HRO10. World J Microbiol Biotechnol 2007. [DOI: 10.1007/s11274-007-9353-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Production of acetone–butanol–ethanol (ABE) in a continuous flow bioreactor using degermed corn and Clostridium beijerinckii. Process Biochem 2007. [DOI: 10.1016/j.procbio.2006.07.020] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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