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Kumar S, Agarwal GP, Sreekrishnan TR. Optimization of co-culture condition with respect to aeration and glucose to xylose ratio for bioethanol production. INDIAN CHEMICAL ENGINEER 2023. [DOI: 10.1080/00194506.2023.2190332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Affiliation(s)
- Shashi Kumar
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi, India
| | - G. P. Agarwal
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi, India
| | - T. R. Sreekrishnan
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi, India
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The production of ethanol from lignocellulosic biomass by Kluyveromyces marxianus CICC 1727-5 and Spathaspora passalidarum ATCC MYA-4345. Appl Microbiol Biotechnol 2019; 103:2845-2855. [DOI: 10.1007/s00253-019-09625-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 11/18/2018] [Accepted: 12/16/2018] [Indexed: 11/25/2022]
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Comparative assessment of fermentative capacity of different xylose-consuming yeasts. Microb Cell Fact 2017; 16:153. [PMID: 28903764 PMCID: PMC5598047 DOI: 10.1186/s12934-017-0766-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 09/07/2017] [Indexed: 12/03/2022] Open
Abstract
Background Understanding the effects of oxygen levels on yeast xylose metabolism would benefit ethanol production. In this work, xylose fermentative capacity of Scheffersomyces stipitis, Spathaspora passalidarum, Spathaspora arborariae and Candida tenuis was systematically compared under aerobic, oxygen-limited and anaerobic conditions. Results Fermentative performances of the four yeasts were greatly influenced by oxygen availability. S. stipitis and S. passalidarum showed the highest ethanol yields (above 0.44 g g−1) under oxygen limitation. However, S. passalidarum produced 1.5 times more ethanol than S. stipitis under anaerobiosis. While C. tenuis showed the lowest xylose consumption rate and incapacity to produce ethanol, S. arborariae showed an intermediate fermentative performance among the yeasts. NAD(P)H xylose reductase (XR) activity in crude cell extracts correlated with xylose consumption rates and ethanol production. Conclusions Overall, the present work demonstrates that the availability of oxygen influences the production of ethanol by yeasts and indicates that the NADH-dependent XR activity is a limiting step on the xylose metabolism. S. stipitis and S. passalidarum have the greatest potential for ethanol production from xylose. Both yeasts showed similar ethanol yields near theoretical under oxygen-limited condition. Besides that, S. passalidarum showed the best xylose consumption and ethanol production under anaerobiosis.
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Enhanced Production of Bioethanol by Fermentation of Autohydrolyzed and C4mimOAc-Treated Sugarcane Bagasse Employing Various Yeast Strains. ENERGIES 2017. [DOI: 10.3390/en10081207] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Farias D, Atala DIP, Maugeri F. Improving bioethanol production by Scheffersomyces stipitis using retentostat extractive fermentation at high xylose concentration. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2017.02.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Moya AJ, Peinado S, Mateo S, Fonseca BG, Sánchez S. Improving bioethanol production from olive pruning biomass by deacetylation step prior acid hydrolysis and fermentation processes. BIORESOURCE TECHNOLOGY 2016; 220:239-245. [PMID: 27579798 DOI: 10.1016/j.biortech.2016.08.074] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 08/18/2016] [Accepted: 08/19/2016] [Indexed: 06/06/2023]
Abstract
In order to produce bioethanol from olive tree pruning biomass, deacetylation was performed employing sodium hydroxide. Optimal conditions were determined using experimental design techniques. The highest acetic acid removal (3.8g/dm(3)), obtained by response surface methodology, was at optimum pretreatment conditions of temperature 60°C, 0.8% NaOH and residence time 60min. After oxalic acid hydrolysis of pretreated biomass, the hydrolysates were directly used for ethanol production without further detoxification process. Ethanol yields ranged from 0.19 to 0.45g/g, reaching the maximum yield value when pretreatment was carried out at 130°C with 100mM oxalic acid, involving a combined severity factor (CSF) of 1.05. The highest ethanol concentration obtained from pretreated biomass was 6.2g/dm(3) at 150°C, using 75mM of oxalic acid (CSF=1.53).
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Affiliation(s)
- Alberto J Moya
- Department of Chemical, Environmental and Materials Engineering, University of Jaén, 23071 Jaén, Spain.
| | - Silvia Peinado
- Department of Chemical, Environmental and Materials Engineering, University of Jaén, 23071 Jaén, Spain
| | - Soledad Mateo
- Department of Chemical, Environmental and Materials Engineering, University of Jaén, 23071 Jaén, Spain
| | - Bruno G Fonseca
- Departamento de Farmácia, Faculdades Integradas Teresa DÁvila (FATEA), 12.606-580 Lorena, Brazil
| | - Sebastián Sánchez
- Department of Chemical, Environmental and Materials Engineering, University of Jaén, 23071 Jaén, Spain
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Li QM, Shi Z, Xiong XY, Wen Q, Hu QL, Su XJ. Ethanol production from xylose by Fusarium oxysporum and the optimization of culture conditions. BIOCATAL BIOTRANSFOR 2016. [DOI: 10.1080/10242422.2016.1212848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Qing-ming Li
- College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan, PR China,
- Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Hunan Agricultural University, Changsha, Hunan, PR China,
| | - Zhuo Shi
- College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan, PR China,
| | - Xing-yao Xiong
- The Institute of Vegetables and Flowers, Chinese Academy of Agriculture Sciences, Beijing, PR China, and
| | - Qian Wen
- College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan, PR China,
| | - Qiu-long Hu
- Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Hunan Agricultural University, Changsha, Hunan, PR China,
| | - Xiao-jun Su
- Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Hunan Agricultural University, Changsha, Hunan, PR China,
- Hunan Collaborative Innovation for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, Hunan, PR China
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Novy V, Brunner B, Müller G, Nidetzky B. Toward "homolactic" fermentation of glucose and xylose by engineered Saccharomyces cerevisiae harboring a kinetically efficient l-lactate dehydrogenase within pdc1-pdc5 deletion background. Biotechnol Bioeng 2016; 114:163-171. [PMID: 27426989 DOI: 10.1002/bit.26048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/20/2016] [Accepted: 07/14/2016] [Indexed: 10/21/2022]
Abstract
l-Lactic acid is an important platform chemical and its production from the lignocellulosic sugars glucose and xylose is, therefore, of high interest. Tolerance to low pH and a generally high robustness make Saccharomyces cerevisiae a promising host for l-lactic acid fermentation but strain development for effective utilization of both sugars is an unsolved problem. The herein used S. cerevisiae strain IBB10B05 incorporates a NADH-dependent pathway for oxidoreductive xylose assimilation within CEN.PK113-7D background and was additionally evolved for accelerated xylose-to-ethanol fermentation. Selecting the Plasmodium falciparum l-lactate dehydrogenase (pfLDH) for its high kinetic efficiency, strain IBB14LA1 was derived from IBB10B05 by placing the pfldh gene at the pdc1 locus under control of the pdc1 promotor. Strain IBB14LA1_5 additionally had the pdc5 gene disrupted. With both strains, continued l-lactic acid formation from glucose or xylose, each at 50 g/L, necessitated stabilization of pH. Using calcium carbonate (11 g/L), anaerobic shaken bottle fermentations at pH ≥ 5 resulted in l-lactic acid yields (YLA ) of 0.67 g/g glucose and 0.80 g/g xylose for strain IBB14LA1_5. Only little xylitol was formed (≤0.08 g/g) and no ethanol. In pH stabilized aerobic conversions of glucose, strain IBB14LA1_5 further showed excellent l-lactic acid productivities (1.8 g/L/h) without losses in YLA (0.69 g/g glucose). In strain IBB14LA1, the YLA was lower (≤0.18 g/g glucose; ≤0.27 g/g xylose) due to ethanol as well as xylitol formation. Therefore, this study shows that a S. cerevisiae strain originally optimized for xylose-to-ethanol fermentation was useful to implement l-lactic acid production from glucose and xylose; and with the metabolic engineering strategy applied, advance toward homolactic fermentation of both sugars was made. Biotechnol. Bioeng. 2017;114: 163-171. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Vera Novy
- Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, NAWI Graz, Petersgasse 12/I, 8010 Graz, Austria
| | - Bernd Brunner
- Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, NAWI Graz, Petersgasse 12/I, 8010 Graz, Austria
| | - Gerdt Müller
- Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, NAWI Graz, Petersgasse 12/I, 8010 Graz, Austria
| | - Bernd Nidetzky
- Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, NAWI Graz, Petersgasse 12/I, 8010 Graz, Austria.,Austrian Centre of Industrial Biotechnology, Graz, Austria
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Nitiyon S, Keo-Oudone C, Murata M, Lertwattanasakul N, Limtong S, Kosaka T, Yamada M. Efficient conversion of xylose to ethanol by stress-tolerant Kluyveromyces marxianus BUNL-21. SPRINGERPLUS 2016; 5:185. [PMID: 27026881 PMCID: PMC4769242 DOI: 10.1186/s40064-016-1881-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 02/16/2016] [Indexed: 11/29/2022]
Abstract
The fermentation ability of thermotolerant Kluyveromyces marxianus BUNL-21 isolated in Laos was investigated. Comparison with thermotolerant K. marxianus DMKU3-1042 as one of the most thermotolerant yeasts isolated previously revealed that the strain possesses stronger ability for conversion of xylose to ethanol, resistance to 2-deoxyglucose in the case of pentose, and tolerance to various stresses including high temperature and hydrogen peroxide. K. marxianus BUNL-21 was found to have ethanol fermentation activity from xylose that is slightly lower and much higher than that of Scheffersomyces stipitis (Pichia stipitis) at 30 °C and at higher temperatures, respectively. The lower ethanol production seems to be due to large accumulation of acetic acid. The possible mechanism of acetic acid accumulation is discussed. In addition, it was found that both K. marxianus strains produced ethanol in the presence of 10 mM hydroxymethylfurfural or furfural, at a level almost equivalent to that in their absence. Therefore, K. marxianus BUNL-21 is a highly competent yeast for high-temperature ethanol fermentation with lignocellulosic biomass.
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Affiliation(s)
- Sukanya Nitiyon
- Applied Molecular Bioscience, Graduate School of Medicine, Yamaguchi University, Ube, 755-8505 Japan
| | - Chansom Keo-Oudone
- Department of Biology, Faculty of Science, National University of Laos, Vientiane, Lao PDR
| | - Masayuki Murata
- Applied Molecular Bioscience, Graduate School of Medicine, Yamaguchi University, Ube, 755-8505 Japan
| | - Noppon Lertwattanasakul
- Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok, 10900 Thailand
| | - Savitree Limtong
- Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok, 10900 Thailand
| | - Tomoyuki Kosaka
- Department of Biological Chemistry, Faculty of Agriculture, Yamaguchi University, Yamaguchi, 753-8515 Japan
| | - Mamoru Yamada
- Applied Molecular Bioscience, Graduate School of Medicine, Yamaguchi University, Ube, 755-8505 Japan ; Department of Biological Chemistry, Faculty of Agriculture, Yamaguchi University, Yamaguchi, 753-8515 Japan
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Trausinger G, Gruber C, Krahulec S, Magnes C, Nidetzky B, Klimacek M. Identification of novel metabolic interactions controlling carbon flux from xylose to ethanol in natural and recombinant yeasts. BIOTECHNOLOGY FOR BIOFUELS 2015; 8:157. [PMID: 26413156 PMCID: PMC4582818 DOI: 10.1186/s13068-015-0340-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 09/09/2015] [Indexed: 05/31/2023]
Abstract
BACKGROUND Unlike xylose-converting natural yeasts, recombinant strains of Saccharomyces cerevisiae expressing the same xylose assimilation pathway produce under anaerobic conditions xylitol rather than ethanol from xylose at low specific xylose conversion rates. Despite intense research efforts over the last two decades, differences in these phenotypes cannot be explained by current metabolic and kinetic models. To improve our understanding how metabolic flux of xylose carbon to ethanol is controlled, we developed a novel kinetic model based on enzyme mechanisms and applied quantitative metabolite profiling together with enzyme activity analysis to study xylose-to-ethanol metabolisms of Candida tenuis CBS4435 (q xylose = 0.10 g/gdc/h, 25 °C; Y ethanol = 0.44 g/g; Y xylitol = 0.09 g/g) and the recombinant S. cerevisiae strain BP000 (q xylose = 0.07 g/gdc/h, 30 °C; Y ethanol = 0.24 g/g; Y xylitol = 0.43 g/g), both expressing the same xylose reductase (XR), comprehensively. RESULTS Results from strain-to-strain metabolic control analysis indicated that activity levels of XR and the maximal flux capacity of the upper glycolysis (UG; both ≥ tenfold higher in CBS4435) contributed predominantly to phenotype differentiation while reactions from the oxidative pentose phosphate pathway played minor roles. Intracellular metabolite profiles supported results obtained from kinetic modeling and indicated a positive correlation between pool sizes of UG metabolites and carbon flux through the UG. For CBS4435, fast carbon flux through the UG could be associated with an allosteric control of 6-phosphofructokinase (PFK) activity by fructose 6-phosphate. The ability of CBS4435 to keep UG metabolites at high levels could be explained by low glycerol 3-phosphate phosphatase (GPP, 17-fold lower in CBS4435) and high XR activities. CONCLUSIONS By applying a systems biology approach in which we combined results obtained from metabolic control analysis based on kinetic modeling with data obtained from quantitative metabolite profiling and enzyme activity analyses, we could provide new insights into metabolic and kinetic interactions contributing to the control of carbon flux from xylose to ethanol. Supported by evidences presented two new targets, PFK and GPP, could be identified that aside from XR play pivotal roles in phenotype differentiation. Design of efficient and fast microbial ethanol producers in the future can certainly benefit from results presented in this study.
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Affiliation(s)
- Gert Trausinger
- />Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12/1, 8010 Graz, Austria
- />HEALTH-Institute for Biomedicine and Health Sciences, Joanneum Research Forschungsgesellschaft m.b.H., Graz, Austria
| | - Christoph Gruber
- />Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12/1, 8010 Graz, Austria
| | - Stefan Krahulec
- />Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12/1, 8010 Graz, Austria
| | - Christoph Magnes
- />HEALTH-Institute for Biomedicine and Health Sciences, Joanneum Research Forschungsgesellschaft m.b.H., Graz, Austria
| | - Bernd Nidetzky
- />Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12/1, 8010 Graz, Austria
| | - Mario Klimacek
- />Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12/1, 8010 Graz, Austria
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Negro MJ, Alvarez C, Ballesteros I, Romero I, Ballesteros M, Castro E, Manzanares P, Moya M, Oliva JM. Ethanol production from glucose and xylose obtained from steam exploded water-extracted olive tree pruning using phosphoric acid as catalyst. BIORESOURCE TECHNOLOGY 2014; 153:101-107. [PMID: 24345569 DOI: 10.1016/j.biortech.2013.11.079] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 11/26/2013] [Accepted: 11/28/2013] [Indexed: 06/03/2023]
Abstract
In this work, the effect of phosphoric acid (1% w/w) in steam explosion pretreatment of water extracted olive tree pruning at 175°C and 195°C was evaluated. The objective is to produce ethanol from all sugars (mainly glucose and xylose) contained in the pretreated material. The water insoluble fraction obtained after pretreatment was used as substrate in a simultaneous saccharification and fermentation (SSF) process by a commercial strain of Saccharomyces cerevisiae. The liquid fraction, containing mainly xylose, was detoxified by alkali and ion-exchange resin and then fermented by the xylose fermenting yeast Scheffersomyces stipitis. Ethanol yields reached in a SSF process were close to 80% when using 15% (w/w) substrate consistency and about 70% of theoretical when using prehydrolysates detoxified by ion-exchange resins. Considering sugars recovery and ethanol yields about 160g of ethanol from kg of water extracted olive tree pruning could be obtained.
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Affiliation(s)
- M J Negro
- Biofuels Unit, DER-CIEMAT, Avda. Complutense 40, 28040 Madrid, Spain
| | - C Alvarez
- Biofuels Unit, DER-CIEMAT, Avda. Complutense 40, 28040 Madrid, Spain
| | - I Ballesteros
- Biofuels Unit, DER-CIEMAT, Avda. Complutense 40, 28040 Madrid, Spain
| | - I Romero
- Department of Chemical, Environmental and Materials Engineering, University of Jaen, Campus Las Lagunillas, 23071 Jaen, Spain
| | - M Ballesteros
- Biofuels Unit, DER-CIEMAT, Avda. Complutense 40, 28040 Madrid, Spain
| | - E Castro
- Department of Chemical, Environmental and Materials Engineering, University of Jaen, Campus Las Lagunillas, 23071 Jaen, Spain
| | - P Manzanares
- Biofuels Unit, DER-CIEMAT, Avda. Complutense 40, 28040 Madrid, Spain
| | - M Moya
- Department of Chemical, Environmental and Materials Engineering, University of Jaen, Campus Las Lagunillas, 23071 Jaen, Spain
| | - J M Oliva
- Biofuels Unit, DER-CIEMAT, Avda. Complutense 40, 28040 Madrid, Spain.
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Gruber C, Krahulec S, Nidetzky B, Kratzer R. Harnessing Candida tenuis and Pichia stipitis in whole-cell bioreductions of o-chloroacetophenone: stereoselectivity, cell activity, in situ substrate supply and product removal. Biotechnol J 2013; 8:699-708. [PMID: 23589466 DOI: 10.1002/biot.201200322] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2012] [Revised: 03/15/2013] [Accepted: 04/10/2013] [Indexed: 11/10/2022]
Abstract
Generally, recombinant and native microorganisms can be employed as whole-cell catalysts. The application of native hosts, however, shortens the process development time by avoiding multiple steps of strain construction. Herein, we studied the NAD(P)H-dependent reduction of o-chloroacetophenone by isolated xylose reductases and their native hosts Candida tenuis and Pichia stipitis. The natural hosts were benchmarked against Escherichia coli strains co-expressing xylose reductase and a dehydrogenase for co-enzyme recycling. Xylose-grown cells of C. tenuis and P. stipitis displayed specific o-chloroacetophenone reductase activities of 366 and 90 U gCDW (-1) , respectively, in the cell-free extracts. Fresh biomass was employed in batch reductions of 100 mM o-chloroacetophenone using glucose as co-substrate. Reaction stops at a product concentration of about 15 mM, which suggests sensitivity of the catalyst towards the formed product. In situ substrate supply and product removal by the addition of 40% hexane increased catalyst stability. Optimisation of the aqueous phase led to a (S)-1-(2-chlorophenyl)ethanol concentration of 71 mM (ee > 99.9%) obtained with 44 gCDW L(-1) of C. tenuis. The final difference in productivities between native C. tenuis and recombinant E. coli was < 1.7-fold. The optically pure product is a required key intermediate in the synthesis of a new class of chemotherapeutic substances (polo-like kinase 1 inhibitors).
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Affiliation(s)
- Christoph Gruber
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology TUG, A-8010 Graz, Austria
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Optimized Fed-Batch Fermentation of Scheffersomyces stipitis for Efficient Production of Ethanol from Hexoses and Pentoses. Appl Biochem Biotechnol 2013; 169:1895-909. [DOI: 10.1007/s12010-013-0100-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 01/10/2013] [Indexed: 12/21/2022]
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