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Shalygin MG, Kozlova AA, Teplyakov VV. Vapor Phase Separation of Water–Alcohol Mixtures with Industrial Nanofiltration Membrane NaRM. MEMBRANES AND MEMBRANE TECHNOLOGIES 2022. [DOI: 10.1134/s2517751622040084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Dickerson A, Yang F, Green H, Embree M, Drackley J. Feeding native rumen microbial supplements increases energy-corrected milk production and feed efficiency by Holstein cows. JDS COMMUNICATIONS 2022; 3:239-244. [PMID: 36338023 PMCID: PMC9623718 DOI: 10.3168/jdsc.2022-0210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 04/08/2022] [Indexed: 11/26/2022]
Abstract
Supplementation with native rumen organisms improves energy-corrected milk production The 4-microbe supplement performed better than the 2-microbe supplement No negative impact on health or body weight from supplementation Production improvements may be influenced by lactation stage
The objective of this study was to investigate the effects of 2 novel native microbial feed supplements (MFS) on milk yield, milk composition, dry matter intake (DMI), body weight (BW), body condition score (BCS), and efficiency. A total of 73 lactating Holstein cows were enrolled over 4 mo. During a 2-wk covariate period, baseline data were collected. Using a randomized complete block design, cows were blocked in groups of 3 by days in milk (DIM), production, and parity. Within blocks cows were randomly assigned to a basal diet with a 150 g/d ground corn topdress and no MFS (control), the basal diet supplemented with a 5 g/d dose of Clostridium beijerinckii ASCUSDY20 and Pichia kudriavzevii ASCUSDY21 in a carrier mixed with a 150 g/d ground corn topdress (MFS1), or the basal diet with a 5 g/d dose of Ruminococcus bovis ASCUSDY10, Butyrivibrio fibrisolvens ASCUSDY19, Clostridium beijerinckii ASCUSDY20, and Pichia kudriavzevii ASCUSDY21 in a carrier mixed in a 150 g/d ground corn topdress (MFS2) for 140 d. Cows were fed the diets as a total mixed ration (TMR) for ad libitum DMI once daily. Analysis showed numerical increases in performance variables such as milk yield and fat and protein contents in both MFS1 and MFS2, although the differences were not significant over time. For energy-corrected milk (ECM), other solids percentage, and BW there were significant treatment by time interactions. Cows fed MFS1 and MFS2 produced 1.4 kg/d and 1.6 kg/d more ECM than control cows, respectively (time-dependent treatment significance). Up to wk 13 of treatment, both MFS groups had higher ECM production than the control group but after this point MFS1 rapidly decreased to the same level as control. All cows displayed a gradual decrease in ECM after wk 13 but the MFS2 group remained greater than both control and MFS1. A similar trend in the content of other milk solids was observed. Cow BW was affected over time; both control and MFS2 cows gained weight at a similar rate throughout the study, whereas the weight gain of MFS1 cows decreased briefly from wk 13 to 17 before increasing again. Feed efficiency tended to be improved by MFS, with greater improvement by MFS2 than by MFS1. The DIM when the supplementation began had a significant impact on MFS2 efficacy, where the supplementation of native rumen microbes at an earlier DIM resulted in a greater gain in ECM over the 140-d trial. A similar trend was observed for MFS1, although the effect was not significant. Our results suggest that dairy cow lactation stage and energy requirements also play an important role in product efficacy.
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Affiliation(s)
- A.M. Dickerson
- Department of Animal Sciences, University of Illinois, Urbana-Champaign 61801
| | - F. Yang
- Native Microbials, San Diego, CA 92121
| | | | | | - J.K. Drackley
- Department of Animal Sciences, University of Illinois, Urbana-Champaign 61801
- Corresponding author
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Vamsi Krishna K, Bharathi N, George Shiju S, Alagesan Paari K, Malaviya A. An updated review on advancement in fermentative production strategies for biobutanol using Clostridium spp. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:47988-48019. [PMID: 35562606 DOI: 10.1007/s11356-022-20637-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
A significant concern of our fuel-dependent era is the unceasing exhaustion of petroleum fuel supplies. In parallel to this, environmental issues such as the greenhouse effect, change in global climate, and increasing global temperature must be addressed on a priority basis. Biobutanol, which has fuel characteristics comparable to gasoline, has attracted global attention as a viable green fuel alternative among the many biofuel alternatives. Renewable biomass could be used for the sustainable production of biobutanol by the acetone-butanol-ethanol (ABE) pathway. Non-extinguishable resources, such as algal and lignocellulosic biomass, and starch are some of the most commonly used feedstock for fermentative production of biobutanol, and each has its particular set of advantages. Clostridium, a gram-positive endospore-forming bacterium that can produce a range of compounds, along with n-butanol is traditionally known for its biobutanol production capabilities. Clostridium fermentation produces biobased n-butanol through ABE fermentation. However, low butanol titer, a lack of suitable feedstock, and product inhibition are the primary difficulties in biobutanol synthesis. Critical issues that are essential for sustainable production of biobutanol include (i) developing high butanol titer producing strains utilizing genetic and metabolic engineering approaches, (ii) renewable biomass that could be used for biobutanol production at a larger scale, and (iii) addressing the limits of traditional batch fermentation by integrated bioprocessing technologies with effective product recovery procedures that have increased the efficiency of biobutanol synthesis. Our paper reviews the current progress in all three aspects of butanol production and presents recent data on current practices in fermentative biobutanol production technology.
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Affiliation(s)
- Kondapalli Vamsi Krishna
- Applied and Industrial Biotechnology Laboratory, CHRIST (Deemed-to-Be University), Hosur road, Bangalore, Karnataka, India
| | - Natarajan Bharathi
- Department of Life Sciences, CHRIST (Deemed to Be University), Bengaluru, India
| | - Shon George Shiju
- Applied and Industrial Biotechnology Laboratory, CHRIST (Deemed-to-Be University), Hosur road, Bangalore, Karnataka, India
| | | | - Alok Malaviya
- Applied and Industrial Biotechnology Laboratory, CHRIST (Deemed-to-Be University), Hosur road, Bangalore, Karnataka, India.
- Department of Life Sciences, CHRIST (Deemed to Be University), Bengaluru, India.
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Yao X, Zhang Q, Fan Y, Xu X, Liu Z. Butanol-isopropanol fermentation with oxygen-tolerant Clostridium beijerinckii XH29. AMB Express 2022; 12:57. [PMID: 35567691 PMCID: PMC9107568 DOI: 10.1186/s13568-022-01399-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 05/04/2022] [Indexed: 11/16/2022] Open
Abstract
Acetone–butanol–ethanol (ABE) fermentation is a traditional way for solvents production through bioconversion by Clostridium species. It is still a challenge to obtain metabolic engineering strains with high ABE yield. Screening strains with remarkable characteristics from nature and improving ABE yield by mutation are viable approaches. Clostridium beijerinckii XH 0906, a newly isolated strain, produces butanol and isopropanol (BI) as the main end-products (9.1 g/L BI) during fermentation with glucose as the sole carbon source. The screening process for this strain was performed under aerobic conditions rather than anaerobic environment. Thus, it is a robust stain capable of oxygen-tolerant BI fermentation. Furthermore, C. beijerinckii XH 0906 fermented xylose and glucose simultaneously to produce BI. A mutant strain obtained by ultraviolet (UV) mutagenesis, C. beijerinckii XH 29, had improved BI production capacity and could produce 17.0 g/L BI and 18.4 g/L BI using glucose or corn stover hydrolysate, respectively as the carbon source. Interestingly, C. beijerinckii XH 29 also produced up to 19.3 g/L isopropanol through fermentation of a glucose–acetone mix. These results indicate that C. beijerinckii XH 29 is an excellent BI producer with great potential for industrial applications. A newly isolated strain produces butanol and isopropanol (BI) rather than acetone butanol and ethanol (ABE). The strain is oxygen-tolerant and robust in the fermentation. A mutant obtained by ultraviolet mutagenesis produces higher levels of BI than the wild type strain using corn stover as a carbon source.
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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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Patakova P, Branska B, Vasylkivska M, Jureckova K, Musilova J, Provaznik I, Sedlar K. Transcriptomic studies of solventogenic clostridia, Clostridium acetobutylicum and Clostridium beijerinckii. Biotechnol Adv 2021; 58:107889. [PMID: 34929313 DOI: 10.1016/j.biotechadv.2021.107889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 12/10/2021] [Accepted: 12/14/2021] [Indexed: 12/13/2022]
Abstract
Solventogenic clostridia are not a strictly defined group within the genus Clostridium but its representatives share some common features, i.e. they are anaerobic, non-pathogenic, non-toxinogenic and endospore forming bacteria. Their main metabolite is typically 1-butanol but depending on species and culture conditions, they can form other metabolites such as acetone, isopropanol, ethanol, butyric, lactic and acetic acids, and hydrogen. Although these organisms were previously used for the industrial production of solvents, they later fell into disuse, being replaced by more efficient chemical production. A return to a more biological production of solvents therefore requires a thorough understanding of clostridial metabolism. Transcriptome analysis, which reflects the involvement of individual genes in all cellular processes within a population, at any given (sampling) moment, is a valuable tool for gaining a deeper insight into clostridial life. In this review, we describe techniques to study transcription, summarize the evolution of these techniques and compare methods for data processing and visualization of solventogenic clostridia, particularly the species Clostridium acetobutylicum and Clostridium beijerinckii. Individual approaches for evaluating transcriptomic data are compared and their contributions to advancements in the field are assessed. Moreover, utilization of transcriptomic data for reconstruction of computational clostridial metabolic models is considered and particular models are described. Transcriptional changes in glucose transport, central carbon metabolism, the sporulation cycle, butanol and butyrate stress responses, the influence of lignocellulose-derived inhibitors on growth and solvent production, and other respective topics, are addressed and common trends are highlighted.
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Affiliation(s)
- Petra Patakova
- University of Chemistry and Technology Prague, Technicka 5, 16628 Prague 6, Czech Republic.
| | - Barbora Branska
- University of Chemistry and Technology Prague, Technicka 5, 16628 Prague 6, Czech Republic
| | - Maryna Vasylkivska
- University of Chemistry and Technology Prague, Technicka 5, 16628 Prague 6, Czech Republic
| | | | - Jana Musilova
- Brno University of Technology, Technicka 10, 61600 Brno, Czech Republic
| | - Ivo Provaznik
- Brno University of Technology, Technicka 10, 61600 Brno, Czech Republic
| | - Karel Sedlar
- Brno University of Technology, Technicka 10, 61600 Brno, Czech Republic
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Wang X, Hu C, Qin C, Dong Y, Ying G, Xiu Z, Su Z. Simultaneous solid-liquid separation and primary purification of clavulanic acid from fermentation broth of Streptomyces clavuligerus using salting-out extraction system. Eng Life Sci 2021; 21:643-652. [PMID: 34690635 PMCID: PMC8518655 DOI: 10.1002/elsc.202000091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 07/14/2021] [Accepted: 07/22/2021] [Indexed: 11/10/2022] Open
Abstract
Clavulanic acid (CA) is usually used together with other β-lactam antibiotics as combination drugs to inhibit bacterial β-lactamases, which is mainly produced from the fermentation of microorganism such as Streptomyces clavuligerus. Recently, it is still a challenge for downstream processing of low concentration and unstable CA from fermentation broth with high solid content, high viscosity, and small cell size. In this study, an integrated process was developed for simultaneous solid-liquid separation and primary purification of CA from real fermentation broth of S. clavuligerus using salting-out extraction system (SOES). First, different SOESs were investigated, and a suitable SOES composed of ethanol/phosphate was chosen and further optimized using the pretreated fermentation broth. Then, the optimal system composed of 20% ethanol/15% K2HPO4 and 10% KH2PO4 w/w was used to direct separation of CA from untreated fermentation broth. The result showed that the partition coefficient (K) and recovery yield (Y) of CA from untreated fermentation broth were 29.13 and 96.8%, respectively. Simultaneously, the removal rates of the cells and proteins were 99.8% and 63.3%, respectively. Compared with the traditional method of membrane filtration or liquid-liquid extraction system, this developed SOES showed the advantages of simple operation, shorter operation time, lower process cost and higher recovery yield of CA. These results demonstrated that the developed SOES could be used as an attractive alternative for the downstream processing of CA from real fermentation broth.
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Affiliation(s)
- Xu‐Dong Wang
- School of BioengineeringDalian University of TechnologyDalianP. R. China
- College of Pharmaceutical ScienceZhejiang University of TechnologyHangzhouP. R. China
| | - Chun‐Yan Hu
- School of BioengineeringDalian University of TechnologyDalianP. R. China
| | - Chao Qin
- School of BioengineeringDalian University of TechnologyDalianP. R. China
| | - Yue‐Sheng Dong
- School of BioengineeringDalian University of TechnologyDalianP. R. China
| | - Guo‐Qing Ying
- College of Pharmaceutical ScienceZhejiang University of TechnologyHangzhouP. R. China
| | - Zhi‐Long Xiu
- School of BioengineeringDalian University of TechnologyDalianP. R. China
| | - Zhi‐Guo Su
- State Key Laboratory of Biochemical EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijingP. R. China
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Efficient Co-Utilization of Biomass-Derived Mixed Sugars for Lactic Acid Production by Bacillus coagulans Azu-10. FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7010028] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Lignocellulosic and algal biomass are promising substrates for lactic acid (LA) production. However, lack of xylose utilization and/or sequential utilization of mixed-sugars (carbon catabolite repression, CCR) from biomass hydrolysates by most microorganisms limits achievable titers, yields, and productivities for economical industry-scale production. This study aimed to design lignocellulose-derived substrates for efficient LA production by a thermophilic, xylose-utilizing, and inhibitor-resistant Bacillus coagulans Azu-10. This strain produced 102.2 g/L of LA from 104 g/L xylose at a yield of 1.0 g/g and productivity of 3.18 g/L/h. The CCR effect and LA production were investigated using different mixtures of glucose (G), cellobiose (C), and/or xylose (X). Strain Azu-10 has efficiently co-utilized GX and CX mixture without CCR; however, total substrate concentration (>75 g/L) was the only limiting factor. The strain completely consumed GX and CX mixture and homoferemnatively produced LA up to 76.9 g/L. On the other hand, fermentation with GC mixture exhibited obvious CCR where both glucose concentration (>25 g/L) and total sugar concentration (>50 g/L) were the limiting factors. A maximum LA production of 50.3 g/L was produced from GC mixture with a yield of 0.93 g/g and productivity of 2.09 g/L/h. Batch fermentation of GCX mixture achieved a maximum LA concentration of 62.7 g/L at LA yield of 0.962 g/g and productivity of 1.3 g/L/h. Fermentation of GX and CX mixture was the best biomass for LA production. Fed-batch fermentation with GX mixture achieved LA production of 83.6 g/L at a yield of 0.895 g/g and productivity of 1.39 g/L/h.
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9
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Birgen C, Degnes KF, Markussen S, Wentzel A, Sletta H. Butanol production from lignocellulosic sugars by Clostridium beijerinckii in microbioreactors. BIOTECHNOLOGY FOR BIOFUELS 2021; 14:34. [PMID: 33516261 PMCID: PMC7846990 DOI: 10.1186/s13068-021-01886-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Butanol (n-butanol) has been gaining attention as a renewable energy carrier and an alternative biofuel with superior properties to the most widely used ethanol. We performed 48 anaerobic fermentations simultaneously with glucose and xylose as representative lignocellulosic sugars by Clostridium beijerinckii NCIMB 8052 in BioLector® microbioreactors to understand the effect of different sugar mixtures on fermentation and to demonstrate the applicability of the micro-cultivation system for high-throughput anaerobic cultivation studies. We then compared the results to those of similar cultures in serum flasks to provide insight into different setups and measurement methods. RESULTS ANOVA results showed that the glucose-to-xylose ratio affects both growth and production due to Carbon Catabolite Repression. The study demonstrated successful use of BioLector® system for the first time for screening several media and sugar compositions under anaerobic conditions by using online monitoring of cell mass and pH in real-time and at unprecedented time-resolution. Fermentation products possibly interfered with dissolved oxygen (DO) measurements, which require a careful interpretation of DO monitoring results. CONCLUSIONS The statistical approach to evaluate the microbioreactor setup, and information obtained in this study will support further research in bioreactor and bioprocess design, which are very important aspects of industrial fermentations of lignocellulosic biomass.
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Affiliation(s)
- Cansu Birgen
- Department of Chemical Engineering, NTNU, 7491, Trondheim, Norway.
- Department of Thermal Energy, SINTEF Energy Research, 7034, Trondheim, Norway.
| | - Kristin F Degnes
- Department of Biotechnology and Nanomedicine, SINTEF Industry, 7465, Trondheim, Norway
| | - Sidsel Markussen
- Department of Biotechnology and Nanomedicine, SINTEF Industry, 7465, Trondheim, Norway
| | - Alexander Wentzel
- Department of Biotechnology and Nanomedicine, SINTEF Industry, 7465, Trondheim, Norway
| | - Håvard Sletta
- Department of Biotechnology and Nanomedicine, SINTEF Industry, 7465, Trondheim, Norway
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Nawaz MZ, Bilal M, Tariq A, Iqbal HMN, Alghamdi HA, Cheng H. Bio-purification of sugar industry wastewater and production of high-value industrial products with a zero-waste concept. Crit Rev Food Sci Nutr 2021; 61:3537-3554. [PMID: 32820646 DOI: 10.1080/10408398.2020.1802696] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In recent years, biorefinery approach with a zero-waste concept has gained a lot research impetus to boost the environment and bioeconomy in a sustainable manner. The wastewater from sugar industries contains miscellaneous compounds and need to be treated chemically or biologically before being discharged into water bodies. Efficient utilization of wastewater produced by sugar industries is a key point to improve its economy. Thus, interest in the sugar industry wastes has grown in both fundamental and applied research fields, over the years. Although, traditional methods being used to process such wastewaters are effective yet are tedious, laborious and time intensive. Considering the diverse nature of wastewaters from various sugar-manufacturing processes, the development of robust, cost-competitive, sustainable and clean technologies has become a challenging task. Under the recent scenario of cleaner production and consumption, the biorefinery and/or close-loop concept, though using different technologies and multi-step processes, namely, bio-reduction, bio-accumulation or biosorption using a variety of microbial strains, has stepped-up as the method of choice for a sustainable exploitation of a wide range of organic waste matter along with the production of high-value products of industrial interests. This review comprehensively describes the use of various microbial strains employed for eliminating the environmental pollutants from sugar industry wastewater. Moreover, the main research gaps are also critically discussed along with the prospects for the efficient purification of sugar industry wastewaters with the concomitant production of high-value products using a biorefinery approach. In this review, we emphasized that the biotransformation/biopurification of sugar industry waste into an array of value-added compounds such as succinic acid, L-arabinose, solvents, and xylitol is a need of hour and is futuristic approach toward achieving cleaner production and consumption.
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Affiliation(s)
- Muhammad Zohaib Nawaz
- Center for Advanced Studies in Agriculture and Food Security, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Arslan Tariq
- Center for Advanced Studies in Agriculture and Food Security, University of Agriculture, Faisalabad, Pakistan
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, Mexico
| | - Huda Ahmed Alghamdi
- Department of Biology, College of Sciences, King Khalid University, Abha, Saudi Arabia
| | - Hairong Cheng
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
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Thieme N, Panitz JC, Held C, Lewandowski B, Schwarz WH, Liebl W, Zverlov V. Milling byproducts are an economically viable substrate for butanol production using clostridial ABE fermentation. Appl Microbiol Biotechnol 2020; 104:8679-8689. [PMID: 32915256 PMCID: PMC7502454 DOI: 10.1007/s00253-020-10882-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/14/2020] [Accepted: 09/02/2020] [Indexed: 12/14/2022]
Abstract
Butanol is a platform chemical that is utilized in a wide range of industrial products and is considered a suitable replacement or additive to liquid fuels. So far, it is mainly produced through petrochemical routes. Alternative production routes, for example through biorefinery, are under investigation but are currently not at a market competitive level. Possible alternatives, such as acetone-butanol-ethanol (ABE) fermentation by solventogenic clostridia are not market-ready to this day either, because of their low butanol titer and the high costs of feedstocks. Here, we analyzed wheat middlings and wheat red dog, two wheat milling byproducts available in large quantities, as substrates for clostridial ABE fermentation. We could identify ten strains that exhibited good butanol yields on wheat red dog. Two of the best ABE producing strains, Clostridium beijerinckii NCIMB 8052 and Clostridium diolis DSM 15410, were used to optimize a laboratory-scale fermentation process. In addition, enzymatic pretreatment of both milling byproducts significantly enhanced ABE production rates of the strains C. beijerinckii NCIMB 8052 and C. diolis DSM 15410. Finally, a profitability analysis was performed for small- to mid-scale ABE fermentation plants that utilize enzymatically pretreated wheat red dog as substrate. The estimations show that such a plant could be commercially successful.Key points• Wheat milling byproducts are suitable substrates for clostridial ABE fermentation.• Enzymatic pretreatment of wheat red dog and middlings increases ABE yield.• ABE fermentation plants using wheat red dog as substrate are economically viable. Graphical abstract.
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Affiliation(s)
- Nils Thieme
- Technical University of Munich, Emil-Ramann-Str. 4, 85354, Freising, Germany
| | - Johanna C Panitz
- Technical University of Munich, Emil-Ramann-Str. 4, 85354, Freising, Germany
- Technical University of Munich, Weihenstephaner Berg 3, 85354, Freising, Germany
| | - Claudia Held
- Technical University of Munich, Emil-Ramann-Str. 4, 85354, Freising, Germany
- TDK Electronics AG, Rosenheimer Str. 141e, 81671, Munich, Germany
| | - Birgit Lewandowski
- Fritzmeier Umwelttechnik GmbH & Co KG, Dorfstraße 7, 85653, Aying, Germany
- Electrochaea GmbH, Semmelweisstrasse 3, 82152, Planegg, Germany
| | - Wolfgang H Schwarz
- Technical University of Munich, Emil-Ramann-Str. 4, 85354, Freising, Germany
- aspratis GmbH, Huebnerstrasse 11, 80637, Munich, Germany
| | - Wolfgang Liebl
- Technical University of Munich, Emil-Ramann-Str. 4, 85354, Freising, Germany
| | - Vladimir Zverlov
- Technical University of Munich, Emil-Ramann-Str. 4, 85354, Freising, Germany.
- Institute of Molecular Genetics, RAS, Kurchatov Sq 2, 123128, Moscow, Russia.
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Zhao T, Tashiro Y, Sonomoto K. Smart fermentation engineering for butanol production: designed biomass and consolidated bioprocessing systems. Appl Microbiol Biotechnol 2019; 103:9359-9371. [PMID: 31720773 DOI: 10.1007/s00253-019-10198-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 10/08/2019] [Accepted: 10/15/2019] [Indexed: 12/18/2022]
Abstract
There is a renewed interest in acetone-butanol-ethanol (ABE) fermentation from renewable substrates for the sustainable and environment-friendly production of biofuel and platform chemicals. However, the ABE fermentation is associated with several challenges due to the presence of heterogeneous components in the renewable substrates and the intrinsic characteristics of ABE fermentation process. Hence, there is a need to select optimal substrates and modify their characteristics suitable for the ABE fermentation process or microbial strain. This "designed biomass" can be used to establish the consolidated bioprocessing systems. As there are very few reports on designed biomass, the main objectives of this review are to summarize the main challenges associated with ABE fermentation from renewable substrates and to introduce feasible strategies for designing the substrates through pretreatment and hydrolysis technologies as well as through the establishment of consolidated bioprocessing systems. This review offers new insights on improving the efficiency of ABE fermentation from designed renewable substrates.
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Affiliation(s)
- Tao Zhao
- Laboratory of Microbial Technology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 744, Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.,Energy-rich Compounds Production by Photosynthetic Carbon Fixation Research Center, College of Life Science, Qingdao Agricultural University, No. 700 Changcheng Road, Chengyang District, Qingdao, 266109, China
| | - Yukihiro Tashiro
- Laboratory of Soil and Environmental Microbiology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 744, Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.,Laboratory of Microbial Environmental Protection, Tropical Microbiology Unit, Center for International Education and Research of Agriculture, Faculty of Agriculture, Kyushu University, 744, Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Kenji Sonomoto
- Laboratory of Microbial Technology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 744, Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
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Shanmugam S, Sun C, Chen Z, Wu YR. Enhanced bioconversion of hemicellulosic biomass by microbial consortium for biobutanol production with bioaugmentation strategy. BIORESOURCE TECHNOLOGY 2019; 279:149-155. [PMID: 30716607 DOI: 10.1016/j.biortech.2019.01.121] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 01/23/2019] [Accepted: 01/24/2019] [Indexed: 06/09/2023]
Abstract
As a renewable and sustainable source for next-generation biofuel production, lignocellulosic biomass can be effectively utilized in environmentally friendly manner. In this study, a stable, xylan-utilizing, anaerobic microbial consortium MC1 enriched from mangrove sediments was established, and it was taxonomically identified that the genera Ruminococcus and Clostridium from this community played a crucial role in the substrate utilization. In addition, a butanol-producing Clostridium sp. strain WST was introduced via the bioaugmentation process, which resulted in the conversion of xylan to biobutanol up to 10.8 g/L, significantly improving the butanol yield up to 0.54 g/g by 98-fold. When this system was further applied to other xylan-rich biomass, 1.09 g/L of butanol could be achieved from 20 g/L of corn cob. These results provide another new method to efficiently convert xylan, the main hemicellulose from lignocellulosic biomass into biofuels through a low-cost and eco-friendly manner.
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Affiliation(s)
| | - Chongran Sun
- Department of Biology, Shantou University, Shantou, Guangdong 515063, China
| | - Zichuang Chen
- Department of Biology, Shantou University, Shantou, Guangdong 515063, China
| | - Yi-Rui Wu
- Department of Biology, Shantou University, Shantou, Guangdong 515063, China; STU-UNIVPM Joint Algal Research Center, Shantou University, Shantou, Guangdong 515063, China; Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, Guangdong 515063, China.
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Efficient Catalytic Dehydration of High-Concentration 1-Butanol with Zn-Mn-Co Modified γ-Al2O3 in Jet Fuel Production. Catalysts 2019. [DOI: 10.3390/catal9010093] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
It is important to develop full-performance bio-jet fuel based on alternative feedstocks. The compound 1-butanol can be transformed into jet fuel through dehydration, oligomerization, and hydrogenation. In this study, a new catalyst consisting of Zn-Mn-Co modified γ-Al2O3 was used for the dehydration of high-concentration 1-butanol to butenes. The interactive effects of reaction temperature and butanol weight-hourly space velocity (WHSV) on butene yield were investigated with response surface methodology (RSM). Butene yield was enhanced when the temperature increased from 350 °C to 450 °C but it was reduced as WHSV increased from 1 h−1 to 4 h−1. Under the optimized conditions of 1.67 h−1 WHSV and 375 °C reaction temperature, the selectivity of butenes achieved 90%, and the conversion rate of 1-butanol reached 100%, which were 10% and 6% higher, respectively, than when using unmodified γ-Al2O3. The Zn-Mn-Co modified γ-Al2O3 exhibited high stability and a long lifetime of 180 h, while the unmodified γ-Al2O3 began to deactivate after 60 h. Characterization with X-ray diffraction (XRD), nitrogen adsorption-desorption, pyridine temperature-programmed desorption (Py-TPD), pyridine adsorption IR spectra, and inductively coupled plasma atomic emission spectrometry (ICP-AES), showed that the crystallinity and acid content of γ-Al2O3 were obviously enhanced by the modification with Zn-Mn-Co, and the loading amounts of zinc, manganese, and cobalt were 0.54%, 0.44%, and 0.23%, respectively. This study provides a new catalyst, and the results will be helpful for the further optimization of bio-jet fuel production with a high concentration of 1-butanol.
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Wang J, Yang H, Qi G, Liu X, Gao X, Shen Y. Effect of lignocellulose-derived weak acids on butanol production byClostridium acetobutylicumunder different pH adjustment conditions. RSC Adv 2019; 9:1967-1975. [PMID: 35516100 PMCID: PMC9059770 DOI: 10.1039/c8ra08678h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 12/13/2018] [Indexed: 11/23/2022] Open
Abstract
The effects of formic acid, acetic acid and levulinic acid on acetone–butanol–ethanol (ABE) fermentation under different pH adjustment conditions were investigated using Clostridium acetobutylicum as the fermentation strain. CaCO3 supplementation can alleviate the inhibitory effect of formic acid on ABE production. The ABE titers from the medium containing 0.5 g L−1 formic acid with pH adjusted by CaCO3 and KOH were 11.08 g L−1 and 1.04 g L−1, which reached 64.8% and 6.3% of the control group, respectively. Compared with CaCO3 pH adjustment, fermentation results with higher ABE titers and yields were obtained from the medium containing acetic acid or levulinic acid, when the pH was adjusted by KOH. When formic acid, acetic acid, and levulinic acid co-existed in the medium, better fermentation result was achieved by adjusting the pH by CaCO3. Moreover, 12.50 g L−1 ABE was obtained from the medium containing 2.0 g L−1 acetic acid, 0.4 g L−1 formic acid, and 1.0 g L−1 levulinic acid as compared to 3.98 g L−1 ABE obtained from the same medium when the pH was adjusted by KOH. CaCO3 supplementation is a more favorable pH adjustment method for ABE medium preparation from lignocellulosic hydrolysate. The effects of formic acid, acetic acid and levulinic acid on acetone–butanol–ethanol (ABE) fermentation under different pH adjustment conditions were investigated using Clostridium acetobutylicum as the fermentation strain.![]()
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Affiliation(s)
- Jianhui Wang
- National Research Base of Intelligent Manufacturing Service
- Chongqing Technology and Business University
- Chongqing 400067
- China
| | - Hongyan Yang
- College of Environment and Resources
- Chongqing Technology and Business University
- Chongqing 400067
- China
| | - Gaoxaing Qi
- National Research Base of Intelligent Manufacturing Service
- Chongqing Technology and Business University
- Chongqing 400067
- China
| | - Xuecheng Liu
- College of Environment and Resources
- Chongqing Technology and Business University
- Chongqing 400067
- China
| | - Xu Gao
- National Research Base of Intelligent Manufacturing Service
- Chongqing Technology and Business University
- Chongqing 400067
- China
| | - Yu Shen
- National Research Base of Intelligent Manufacturing Service
- Chongqing Technology and Business University
- Chongqing 400067
- China
- College of Environment and Resources
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16
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Zhao T, Tashiro Y, Zheng J, Sakai K, Sonomoto K. Semi-hydrolysis with low enzyme loading leads to highly effective butanol fermentation. BIORESOURCE TECHNOLOGY 2018; 264:335-342. [PMID: 29886308 DOI: 10.1016/j.biortech.2018.05.056] [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: 04/16/2018] [Revised: 05/14/2018] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
To improve butanol fermentation efficiencies, semi-hydrolysate with low enzyme loading using H2SO4 pretreated rice straw was designed, which preferably produced cellobiose with xylose (instead of glucose). Fermentation of semi-hydrolysates avoided carbon catabolite repression (CCR) and produced higher butanol yield to enzyme loading (0.0290 g U-1), a newly proposed parameter, than the conventional glucose-oriented hydrolysate (0.00197 g U-1). Further, overall butanol productivity was improved from 0.0628 g L-1 h-1 to 0.265 g L-1 h-1 during fermentation of undetoxified semi-hydrolysate by using high cell density. A novel simultaneously repeated hydrolysis and fermentation (SRHF) was constructed by recycling of enzymes and cells, which further improved butanol yield to enzyme loading by 183% and overall butanol productivity by 6.04%. Thus, semi-hydrolysate with SRHF is a smartly designed biomass for efficient butanol fermentation of lignocellulosic materials.
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Affiliation(s)
- Tao Zhao
- Laboratory of Microbial Technology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Yukihiro Tashiro
- Laboratory of Soil and Environmental Microbiology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan; Laboratory of Microbial Environmental Protection, Tropical Microbiology Unit, Center for International Education and Research of Agriculture, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Jin Zheng
- State Key Lab of Petroleum Pollution Control, Beijing 102206, China; Research Division of Environment Technology, CNPC Research Institute of Safety & Environmental Technology, Beijing 102206, China
| | - Kenji Sakai
- Laboratory of Soil and Environmental Microbiology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan; Laboratory of Microbial Environmental Protection, Tropical Microbiology Unit, Center for International Education and Research of Agriculture, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Kenji Sonomoto
- Laboratory of Microbial Technology, Division of Systems Bioengineering, 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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17
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Resolving mismatches in the flexible production of ethanol and butanol from eucalyptus wood with vacuum fermentation. Bioprocess Biosyst Eng 2018; 41:1651-1663. [DOI: 10.1007/s00449-018-1990-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 07/21/2018] [Indexed: 12/21/2022]
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18
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Yang Y, Nie X, Jiang Y, Yang C, Gu Y, Jiang W. Metabolic regulation in solventogenic clostridia: regulators, mechanisms and engineering. Biotechnol Adv 2018; 36:905-914. [DOI: 10.1016/j.biotechadv.2018.02.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 01/05/2018] [Accepted: 02/20/2018] [Indexed: 12/31/2022]
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19
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Maiti S, Gallastegui G, Suresh G, Sarma SJ, Brar SK, Drogui P, LeBihan Y, Buelna G, Verma M, Soccol CR. Hydrolytic pre-treatment methods for enhanced biobutanol production from agro-industrial wastes. BIORESOURCE TECHNOLOGY 2018; 249:673-683. [PMID: 29091853 DOI: 10.1016/j.biortech.2017.09.132] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 09/18/2017] [Accepted: 09/19/2017] [Indexed: 06/07/2023]
Abstract
Brewery industry liquid waste (BLW), brewery spent grain (BSG), apple pomace solid wastes (APS), apple pomace ultrafiltration sludge (APUS) and starch industry wastewater (SIW) have been considered as substrates to produce biobutanol. Efficiency of hydrolysis techniques tested to produce fermentable sugars depended on nature of agro-industrial wastes and process conditions. Acid-catalysed hydrolysis of BLW and BSG gave a total reducing sugar yield of 0.433 g/g and 0.468 g/g respectively. Reducing sugar yield from microwave assisted hydrothermal method was 0.404 g/g from APS and 0.631 g/g from APUS, and, 0.359 g/g from microwave assisted acid-catalysed SIW dry mass. Parameter optimization (time, pH and substrate concentration) for acid-catalysed BLW hydrolysate utilization using central composite model technique produced 307.9 g/kg glucose with generation of inhibitors (5-hydroxymethyl furfural (20 g/kg), furfural (1.6 g/kg), levulinic acid (9.3 g/kg) and total phenolic compound (0.567 g/kg)). 10.62 g/L of acetone-butanol-ethanol was produced by subsequent clostridial fermentation of the substrate.
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Affiliation(s)
- Sampa Maiti
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada
| | - Gorka Gallastegui
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada; University of the Basque Country (UPV/EHU), Department of Chemical and Environmental Engineering, University College of Engineering of Vitoria/Gasteiz, Nieves Cano 12, 01006 Vitoria/Gasteiz, Spain
| | - Gayatri Suresh
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada
| | - Saurabh Jyoti Sarma
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada
| | - Satinder Kaur Brar
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada.
| | - Patrick Drogui
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada
| | - Yann LeBihan
- Centre de recherche industrielle du Québec (CRIQ), Québec, Canada
| | - Gerardo Buelna
- University of the Basque Country (UPV/EHU), Department of Chemical and Environmental Engineering, University College of Engineering of Vitoria/Gasteiz, Nieves Cano 12, 01006 Vitoria/Gasteiz, Spain
| | - Mausam Verma
- CO(2) Solutions Inc., 2300, rue Jean-Perrin, Québec, Québec G2C 1T9, Canada
| | - Carlos Ricardo Soccol
- Bioprocess Engineering and Biotechnology Department, Federal University of Paraná, Centro Politécnico, Usina Piloto B, CEP 81531-990 Curitiba, Paraná, Brazil
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20
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Luo MT, Zhao C, Huang C, Chen XF, Huang QL, Qi GX, Tian LL, Xiong L, Li HL, Chen XD. Efficient Using Durian Shell Hydrolysate as Low-Cost Substrate for Bacterial Cellulose Production by Gluconacetobacter xylinus. Indian J Microbiol 2017; 57:393-399. [PMID: 29151639 PMCID: PMC5671436 DOI: 10.1007/s12088-017-0681-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 10/14/2017] [Indexed: 10/18/2022] Open
Abstract
Durian is one important tropical fruit with high nutritional value, but its shell is usually useless and considered as waste. To explore the efficient and high-value utilization of this agricultural and food waste, in this study, durian shell was simply hydrolyzed by dilute sulfuric acid, and the durian shell hydrolysate after detoxification was used for bacterial cellulose (BC) production by Gluconacetobacter xylinus for the first time. BC was synthesized in static culture for 10 days and the highest BC yield (2.67 g/L) was obtained at the 8th day. The typical carbon sources in the substrate including glucose, xylose, formic acid, acetic acid, etc. can be utilized by G. xylinus. The highest chemical oxygen demand (COD) removal (16.40%) was obtained at the 8th day. The highest BC yield on COD consumption and the highest BC yield on sugar consumption were 93.51% and 22.98% (w/w), respectively, suggesting this is one efficient bioconversion for BC production. Durian shell hydrolysate showed small influence on the BC structure by comparison with the structure of BC generated in traditional Hestrin-Schramm medium detected by FE-SEM, FTIR, and XRD. Overall, this technology can both solve the issue of waste durian shell and produce valuable bio-polymer (BC).
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Affiliation(s)
- Mu-Tan Luo
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Cheng Zhao
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Chao Huang
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
| | - Xue-Fang Chen
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
| | - Qian-Lin Huang
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Gao-Xiang Qi
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Lan-Lan Tian
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Lian Xiong
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
| | - Hai-Long Li
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
| | - Xin-De Chen
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- Xuyi Center of Attapulgite Research Development and Industrialization, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Xuyi, 211700 People’s Republic of China
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21
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Modulation of the Acetone/Butanol Ratio during Fermentation of Corn Stover-Derived Hydrolysate by Clostridium beijerinckii Strain NCIMB 8052. Appl Environ Microbiol 2017; 83:AEM.03386-16. [PMID: 28130305 DOI: 10.1128/aem.03386-16] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 01/25/2017] [Indexed: 11/20/2022] Open
Abstract
Producing biobutanol from lignocellulosic biomass has shown promise to ultimately reduce greenhouse gases and alleviate the global energy crisis. However, because of the recalcitrance of a lignocellulosic biomass, a pretreatment of the substrate is needed which in many cases releases soluble lignin compounds (SLCs), which inhibit growth of butanol-producing clostridia. In this study, we found that SLCs changed the acetone/butanol ratio (A/B ratio) during butanol fermentation. The typical A/B molar ratio during Clostridium beijerinckii NCIMB 8052 batch fermentation with glucose as the carbon source is about 0.5. In the present study, the A/B molar ratio during batch fermentation with a lignocellulosic hydrolysate as the carbon source was 0.95 at the end of fermentation. Structural and redox potential changes of the SLCs were characterized before and after fermentation by using gas chromatography/mass spectrometry and electrochemical analyses, which indicated that some exogenous SLCs were involved in distributing electron flow to C. beijerinckii, leading to modulation of the redox balance. This was further demonstrated by the NADH/NAD+ ratio and trxB gene expression profile assays at the onset of solventogenic growth. As a result, the A/B ratio of end products changed significantly during C. beijerinckii fermentation using corn stover-derived hydrolysate as the carbon source compared to glucose as the carbon source. These results revealed that SLCs not only inhibited cell growth but also modulated the A/B ratio during C. beijerinckii butanol fermentation.IMPORTANCE Bioconversion of lignocellulosic feedstocks to butanol involves pretreatment, during which hundreds of soluble lignin compounds (SLCs) form. Most of these SLCs inhibit growth of solvent-producing clostridia. However, the mechanism by which these compounds modulate electron flow in clostridia remains elusive. In this study, the results revealed that SLCs changed redox balance by producing oxidative stress and modulating electron flow as electron donors. Production of H2 and acetone was stimulated, while butanol production remained unchanged, which led to a high A/B ratio during C. beijerinckii fermentation using corn stover-derived hydrolysate as the carbon source. These observations provide insight into utilizing C. beijerinckii to produce butanol from a lignocellulosic biomass.
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22
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Boonsombuti A, Tangmanasakul K, Nantapipat J, Komolpis K, Luengnaruemitchai A, Wongkasemjit S. Production of biobutanol from acid-pretreated corncob using Clostridium beijerinckii TISTR 1461: Process optimization studies. Prep Biochem Biotechnol 2016; 46:141-9. [DOI: 10.1080/10826068.2014.995810] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- A. Boonsombuti
- Department of General Sciences, Faculty of Science, Srinakharinwirot University, Bangkok, Thailand
| | - K. Tangmanasakul
- Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand
| | - J. Nantapipat
- Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand
| | - K. Komolpis
- Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Bangkok, Thailand
| | - A. Luengnaruemitchai
- Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand
| | - S. Wongkasemjit
- Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand
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Li W, Li Q, Zheng L, Wang Y, Zhang J, Yu Z, Zhang Y. Potential biodiesel and biogas production from corncob by anaerobic fermentation and black soldier fly. BIORESOURCE TECHNOLOGY 2015. [PMID: 26210140 DOI: 10.1016/j.biortech.2015.06.112] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Bioenergy has become attractive as alternatives of gradually exhausted fossil fuel. Obtaining high grade bioenergy from lignocellulose is attractive that can gradually meet the demand. This study reported biogas and biodiesel were produced from corncob by a two-step bioprocess, biogas was produced from corncob by anaerobic fermentation, then biogas residue was converted by black soldier fly larvae, and then biodiesel was produced from larvae grease. 86.70 L biogas was obtained from 400 g corncob with the accumulation of biogas yield of 220.71 mL/g VS(added) by anaerobic digestion. Besides, 3.17 g of biodiesel was produced from grease after inoculating black soldier fly larvae into 400 g biogas residue. Meanwhile, the results showed that the addition of black soldier fly larvae could be effective for the degradation of lignocellulose and the accumulation of grease.
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Affiliation(s)
- Wu Li
- College of Engineering, Huazhong Agricultural University, 430070 Wuhan, PR China
| | - Qing Li
- College of Science, Huazhong Agricultural University, Wuhan 430070, PR China.
| | - Longyu Zheng
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, PR China
| | - Yuanyuan Wang
- College of Engineering, Huazhong Agricultural University, 430070 Wuhan, PR China
| | - Jibin Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, PR China
| | - Ziniu Yu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070 Wuhan, PR China
| | - Yanlin Zhang
- College of Engineering, Huazhong Agricultural University, 430070 Wuhan, PR China.
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Liu J, Guo T, Wang D, Xu J, Ying H. Butanol production by aClostridium beijerinckiimutant with high ferulic acid tolerance. Biotechnol Appl Biochem 2015. [DOI: 10.1002/bab.1418] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jun Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University; Nanjing People's Republic of China
- National Engineering Technique Research Center for Biotechnology; Nanjing People's Republic of China
| | - Ting Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University; Nanjing People's Republic of China
- National Engineering Technique Research Center for Biotechnology; Nanjing People's Republic of China
- Guangzhou Sugarcane Industry Research Institute; Guangdong Key Laboratory of Sugarcane Improvement and Biorefinery, Guangdong Engineering Research & Development Center for Comprehensive Utilization of Plant Fiber, Guangzhou Key Laboratory for Comprehensive Utilization of Plant Fiber; Guangzhou People's Republic of China
| | - Dong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University; Nanjing People's Republic of China
- National Engineering Technique Research Center for Biotechnology; Nanjing People's Republic of China
| | - Jiahui Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University; Nanjing People's Republic of China
- National Engineering Technique Research Center for Biotechnology; Nanjing People's Republic of China
| | - Hanjie Ying
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University; Nanjing People's Republic of China
- National Engineering Technique Research Center for Biotechnology; Nanjing People's Republic of China
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Liu Z, Qiao K, Tian L, Zhang Q, Liu ZY, Li FL. Spontaneous large-scale autolysis in Clostridium acetobutylicum contributes to generation of more spores. Front Microbiol 2015; 6:950. [PMID: 26441884 PMCID: PMC4563875 DOI: 10.3389/fmicb.2015.00950] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 08/27/2015] [Indexed: 12/15/2022] Open
Abstract
Autolysis is a widespread phenomenon in bacteria. In batch fermentation of Clostridium acetobutylicum ATCC 824, there is a spontaneous large-scale autolysis phenomenon with significant decrease of cell density immediately after exponential phase. To unravel the role of autolysis, an autolysin-coding gene, CA_C0554, was disrupted by using ClosTron system to obtain the mutant C. acetobutylicum lyc::int(72). The lower final cell density and faster cell density decrease rate of C. acetobutylicum ATCC 824 than those of C. acetobutylicum lyc::int(72) indicates that CA_C0554 was an important but not the sole autolysin-coding gene responding for the large-scale autolysis. Similar glucose utilization and solvents production but obvious lower cell density of C. acetobutylicum ATCC 824 comparing to C. acetobutylicum lyc::int(72) suggests that lysed C. acetobutylicum ATCC 824 cells were metabolic inactive. On the contrary, the spore density of C. acetobutylicum ATCC 824 is 26.1% higher than that of C. acetobutylicum lyc::int(72) in the final culture broth of batch fermentation. We speculated that spontaneous autolysis of metabolic-inactive cells provided nutrients for the sporulating cells. The present study suggests that one important biological role of spontaneous large-scale autolysis in C. acetobutylicum ATCC 824 batch fermentation is contributing to generation of more spores during sporulation.
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Affiliation(s)
- Zhen Liu
- Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology - Chinese Academy of Sciences Qingdao, China
| | - Kai Qiao
- Sinopec Fushun Research Institute of Petroleum and Petrochemicals Fushun, China
| | - Lei Tian
- Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology - Chinese Academy of Sciences Qingdao, China
| | - Quan Zhang
- Sinopec Fushun Research Institute of Petroleum and Petrochemicals Fushun, China
| | - Zi-Yong Liu
- Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology - Chinese Academy of Sciences Qingdao, China
| | - Fu-Li Li
- Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology - Chinese Academy of Sciences Qingdao, China ; Sinopec Fushun Research Institute of Petroleum and Petrochemicals Fushun, China
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Wang Z, Cao G, Zheng J, Fu D, Song J, Zhang J, Zhao L, Yang Q. Developing a mesophilic co-culture for direct conversion of cellulose to butanol in consolidated bioprocess. BIOTECHNOLOGY FOR BIOFUELS 2015; 8:84. [PMID: 26089984 PMCID: PMC4471926 DOI: 10.1186/s13068-015-0266-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 06/01/2015] [Indexed: 05/07/2023]
Abstract
BACKGROUND Consolidated bioprocessing (CBP) of butanol production from cellulosic biomass is a promising strategy for cost saving compared to other processes featuring dedicated cellulase production. CBP requires microbial strains capable of hydrolyzing biomass with enzymes produced on its own with high rate and high conversion and simultaneously produce a desired product at high yield. However, current reported butanol-producing candidates are unable to utilize cellulose as a sole carbon source and energy source. Consequently, developing a co-culture system using different microorganisms by taking advantage of their specific metabolic capacities to produce butanol directly from cellulose in consolidated bioprocess is of great interest. RESULTS This study was mainly undertaken to find complementary organisms to the butanol producer that allow simultaneous saccharification and fermentation of cellulose to butanol in their co-culture under mesophilic condition. Accordingly, a highly efficient and stable consortium N3 on cellulose degradation was first developed by multiple subcultures. Subsequently, the functional microorganisms with 16S rRNA sequences identical to the denaturing gradient gel electrophoresis (DGGE) profile were isolated from consortium N3. The isolate Clostridium celevecrescens N3-2 exhibited higher cellulose-degrading capability was thus chosen as the partner strain for butanol production with Clostridium acetobutylicum ATCC824. Meanwhile, the established stable consortium N3 was also investigated to produce butanol by co-culturing with C. acetobutylicum ATCC824. Butanol was produced from cellulose when C. acetobutylicum ATCC824 was co-cultured with either consortium N3 or C. celevecrescens N3-2. Co-culturing C. acetobutylicum ATCC824 with the stable consortium N3 resulted in a relatively higher butanol concentration, 3.73 g/L, and higher production yield, 0.145 g/g of glucose equivalent. CONCLUSIONS The newly isolated microbial consortium N3 and strain C. celevecrescens N3-2 displayed effective degradation of cellulose and produced considerable amounts of butanol when they were co-cultured with C. acetobutylicum ATCC824. This is the first report of application of co-culture to produce butanol directly from cellulose under mesophilic condition. Our results indicated that co-culture of mesophilic cellulolytic microbe and butanol-producing clostridia provides a technically feasible and more simplified way for producing butanol directly from cellulose.
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Affiliation(s)
- Zhenyu Wang
- />School of Life Science and Technology, Harbin Institute of Technology, Harbin, 150001 China
| | - Guangli Cao
- />School of Life Science and Technology, Harbin Institute of Technology, Harbin, 150001 China
- />State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090 China
| | - Ju Zheng
- />School of Life Science and Technology, Harbin Institute of Technology, Harbin, 150001 China
| | - Defeng Fu
- />School of Life Science and Technology, Harbin Institute of Technology, Harbin, 150001 China
| | - Jinzhu Song
- />School of Life Science and Technology, Harbin Institute of Technology, Harbin, 150001 China
| | - Junzheng Zhang
- />School of Food Science and Engineering, Harbin Institute of Technology, Harbin, 150090 China
| | - Lei Zhao
- />State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090 China
| | - Qian Yang
- />School of Life Science and Technology, Harbin Institute of Technology, Harbin, 150001 China
- />State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090 China
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Tan Y, Liu ZY, Liu Z, Zheng HJ, Li FL. Comparative transcriptome analysis between csrA-disruption Clostridium acetobutylicum and its parent strain. MOLECULAR BIOSYSTEMS 2015; 11:1434-42. [DOI: 10.1039/c4mb00600c] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This study represented the first attempt to investigate the global regulation of CsrA through transcriptome analysis in Gram-positive bacteria.
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Affiliation(s)
- Yang Tan
- Key Laboratory of Biofuels
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
| | - Zi-Yong Liu
- Key Laboratory of Biofuels
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
| | - Zhen Liu
- Key Laboratory of Biofuels
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
| | - Hua-Jun Zheng
- Shanghai-MOST Key Laboratory of Health and Disease Genomics
- Chinese National Human Genome Center at Shanghai
- Shanghai 201203
- China
| | - Fu-Li Li
- Key Laboratory of Biofuels
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- China
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29
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Utilization of economical substrate-derived carbohydrates by solventogenic clostridia: pathway dissection, regulation and engineering. Curr Opin Biotechnol 2014; 29:124-31. [DOI: 10.1016/j.copbio.2014.04.004] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 03/21/2014] [Accepted: 04/02/2014] [Indexed: 01/15/2023]
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30
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Baral NR, Shah A. Microbial inhibitors: formation and effects on acetone-butanol-ethanol fermentation of lignocellulosic biomass. Appl Microbiol Biotechnol 2014; 98:9151-72. [DOI: 10.1007/s00253-014-6106-8] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 09/15/2014] [Accepted: 09/16/2014] [Indexed: 12/26/2022]
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Abstract
Abstract
Recent studies have shown that butanol is a potential gasoline replacement that can also be blended in significant quantities with conventional diesel fuel. However, biotechnological production of butanol has some challenges such as low butanol titer, high cost feedstocks and product inhibition. The present work reviewed the technical and economic feasibility of the main technologies available to produce biobutanol. The latest studies integrating continuous fermentation processes with efficient product recovery and the use of mathematical models as tools for process scale-up, optimization and control are presented.
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32
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Gu H, Zhang J, Bao J. Inhibitor analysis and adaptive evolution of Saccharomyces cerevisiae for simultaneous saccharification and ethanol fermentation from industrial waste corncob residues. BIORESOURCE TECHNOLOGY 2014; 157:6-13. [PMID: 24518544 DOI: 10.1016/j.biortech.2014.01.060] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 01/12/2014] [Accepted: 01/15/2014] [Indexed: 05/23/2023]
Abstract
Industrial waste corncob residues (CCR) are rich in cellulose and can be hydrolyzed directly without pretreatment. However, a poor fermentation performance was frequently observed in the simultaneous saccharification and ethanol fermentation (SSF) of CCR, although the furans and organic acid inhibitors were very low. In this study, the high level of water-insoluble phenolic compounds such as 2-furoic acid, ferulic acid, p-coumaric acid, guaiacol, and p-hydroxybenzoic acid were detected in CCR and inhibited the growth and metabolism of Saccharomyces cerevisiae DQ1. An evolutionary adaptation strategy was developed by culturing the S. cerevisiae DQ1 strain in a series of media with the gradual increase of CCR hydrolysate. The high ethanol concentration (62.68g/L) and the yield (55.7%) were achieved in the SSF of CCR using the adapted S. cerevisiae DQ1. The results provided a practical method for improving performance of simultaneous saccharification and ethanol production from CCR.
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Affiliation(s)
- Hanqi Gu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jian Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jie Bao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China; State Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang, Henan 473000, China.
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33
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Gao Q, Cui Z, Zhang J, Bao J. Lipid fermentation of corncob residues hydrolysate by oleaginous yeast Trichosporon cutaneum. BIORESOURCE TECHNOLOGY 2013; 152:552-6. [PMID: 24321292 DOI: 10.1016/j.biortech.2013.11.044] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 11/16/2013] [Accepted: 11/19/2013] [Indexed: 05/26/2023]
Abstract
Corncob residues (CCR) are cellulose residues of corncob after xylan (hemicellulose) is extracted for production of xylitol. Here, an oleaginous yeast Trichosporon cutaneum ACCC 20271 was screened for lipid fermentation using CCR hydrolysate. The initial carbon-to-nitrogen molar ratio (C/N ratio) and the initial sugar concentration of the CCR hydrolysate were investigated in the lipid fermentation of T. cutaneum ACCC 20271. A C/N ratio gradient was generated by changing the corn steep liquor (CSL) addition and an optimal C/N ratio of 49.3 was obtained. The different initial sugar concentration was obtained by changing the cellulase amount and the lipid titer was enhanced by the increased sugar concentration. To our knowledge, this is the first report on using CCR as the feedstock for lipid fermentation. The lipid titer of 12.3g/L and dry cell weight (DCW) of 38.4 g/L were the highest values among the studies using lignocellulose for lipid production.
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Affiliation(s)
- Qiuqiang Gao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhenyang Cui
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jian Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jie Bao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
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Sun Y, Yan L, Fu H, Xiu Z. Selection and optimization of a salting-out extraction system for recovery of biobutanol from fermentation broth. Eng Life Sci 2013. [DOI: 10.1002/elsc.201300033] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Yaqin Sun
- School of Life Science and Biotechnology; Dalian University of Technology; Dalian P. R. China
| | - Ling Yan
- School of Life Science and Biotechnology; Dalian University of Technology; Dalian P. R. China
| | - Hongxin Fu
- School of Life Science and Biotechnology; Dalian University of Technology; Dalian P. R. China
| | - Zhilong Xiu
- School of Life Science and Biotechnology; Dalian University of Technology; Dalian P. R. China
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35
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Li Z, Xiao H, Jiang W, Jiang Y, Yang S. Improvement of solvent production from xylose mother liquor by engineering the xylose metabolic pathway in Clostridium acetobutylicum EA 2018. Appl Biochem Biotechnol 2013; 171:555-68. [PMID: 23949683 DOI: 10.1007/s12010-013-0414-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 07/22/2013] [Indexed: 12/15/2022]
Abstract
Xylose mother liquor (XML) is a by-product of xylose production through acid hydrolysis from corncobs, which can be used potentially for alternative fermentation feedstock. Sixteen Clostridia including 13 wild-type, 1 industrial strain, and 2 genetically engineered strains were screened in XML, among which the industrial strain Clostridium acetobutylicum EA 2018 showed the highest titer of solvents (12.7 g/L) among non-genetic populations, whereas only 40% of the xylose was consumed. An engineered strain (2018glcG-TBA) obtained by combination of glcG disruption and expression of the D-xylose proton-symporter, D-xylose isomerase, and xylulokinase was able to completely utilize glucose and L-arabinose, and 88% xylose in XML. The 2018glcG-TBA produced total solvents up to 21 g/L with a 50% enhancement of total solvent yield (0.33 g/g sugar) compared to that of EA 2018 (0.21 g/g sugar) in XML. This XML-based acetone-butanol-ethanol fermentation using recombinant 2018glcG-TBA was estimated to be economically promising for future production of solvents.
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Affiliation(s)
- Zhilin Li
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
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Schiel-Bengelsdorf B, Montoya J, Linder S, Dürre P. Butanol fermentation. ENVIRONMENTAL TECHNOLOGY 2013; 34:1691-1710. [PMID: 24350428 DOI: 10.1080/09593330.2013.827746] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This review provides an overview on bacterial butanol production and recent developments concerning strain improvement, newly built butanol production plants, and the importance of alternative substrates, especially lignocellulosic hydrolysates. The butanol fermentation using solventogenic clostridial strains, particularly Clostridium acetobutylicum, is a very old industrial process (acetone-butanol-ethanol-ABE fermentation). The genome of this organism has been sequenced and analysed, leading to important improvements in rational strain construction. As the traditional ABE fermentation process is economically unfavourable, novel butanol production strains are being developed. In this review, some newly engineered solvent-producing Clostridium strains are described and strains of which sequences are available are compared with C. acetobutylicum. Furthermore, the past and present of commercial butanol fermentation are presented, including active plants and companies. Finally, the use of biomass as substrate for butanol production is discussed. Some advances concerning processing of biomass in a biorefinery are highlighted, which would allow lowering the price of the butanol fermentation process at industrial scale.
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Affiliation(s)
- Bettina Schiel-Bengelsdorf
- Institute of Microbiology and Biotechnology, University of Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
| | - José Montoya
- Institute of Microbiology and Biotechnology, University of Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
| | - Sonja Linder
- Institute of Microbiology and Biotechnology, University of Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
| | - Peter Dürre
- Institute of Microbiology and Biotechnology, University of Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
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37
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Enhancement of ABE fermentation through regulation of ammonium acetate and D–xylose uptake from acid-pretreated corncobs. ANN MICROBIOL 2013. [DOI: 10.1007/s13213-013-0673-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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38
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Tan Y, Liu J, Liu Z, Li F. Characterization of two novel butanol dehydrogenases involved in butanol degradation in syngas-utilizing bacterium Clostridium ljungdahlii DSM 13528. J Basic Microbiol 2013; 54:996-1004. [PMID: 23720212 DOI: 10.1002/jobm.201300046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Accepted: 04/24/2013] [Indexed: 11/06/2022]
Abstract
Syngas utilizing bacterium Clostridium ljungdahlii DSM 13528 is a promising platform organism for a whole variety of different biofuels and biochemicals production from syngas. During syngas fermentation, C. ljungdahlii DSM 13528 could convert butanol into butyrate, which significantly reduces productivity of butanol. However, there has been no any enzyme involved in the degradation of butanol characterized in C. ljungdahlii DSM 13528. In this study two genes, CLJU_c24880 and CLJU_c39950, encoding putative butanol dehydrogenase (designated as BDH1 and BDH2) were identified in the genome of C. ljungdahlii DSM 13528 and qRT-PCR analysis showed the expression of bdh1 and bdh2 was significantly upregulated in the presence of 0.25% butanol. And the deduced amino acid sequence for BDH1 and BDH2 showed 69.85 and 68.04% identity with Clostridium acetobutylicum ADH1, respectively. Both BDH1 and BDH2 were oxygen-sensitive and preferred NADP(+) as cofactor and butanol as optimal substrate. The optimal temperature and pH for BDH1 were at 55 °C and pH 7.5 and specific activity was 18.07 ± 0.01 µmol min(-1) mg(-1) . BDH2 was a thermoactive dehydrogenase with maximum activity at 65 °C and at pH 7.0. The specific activity for BDH2 was 11.21 ± 0.02 µmol min(-1) mg(-1) . This study provided important information for understanding the molecular mechanism of butanol degradation and determining the targets for gene knockout to improve the productivity of butanol from syngas in C. ljungdahlii DSM 13528 in future.
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Affiliation(s)
- Yang Tan
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; University of Chinese Academy of Sciences, Beijing, 100039, China
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39
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Bankar SB, Survase SA, Ojamo H, Granström T. Biobutanol: the outlook of an academic and industrialist. RSC Adv 2013. [DOI: 10.1039/c3ra43011a] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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