1
|
Dziemianowicz W, Kotarska K, Świerczyńska A. The Effect of Technological Conditions on ABE Fermentation and Butanol Production of Rye Straw and the Composition of Volatile Compounds. Molecules 2024; 29:3398. [PMID: 39064975 PMCID: PMC11280078 DOI: 10.3390/molecules29143398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
The objective of this study was to evaluate the effect of pretreatment and different technological conditions on the course of ABE fermentation of rye straw (RS) and the composition of volatile compounds in the distillates obtained. The highest concentration of ABE and butanol was obtained from the fermentation of pretreated rye straw by alkaline hydrolysis followed by detoxification and enzymatic hydrolysis. After 72 h of fermentation, the maximum butanol concentration, productivity, and yield from RS were 16.11 g/L, 0.224 g/L/h, and 0.402 g/g, respectively. Three different methods to produce butanol were tested: the two-step process (SHF), the simultaneous process (SSF), and simultaneous saccharification with ABE fermentation (consolidation SHF/SSF). The SHF/SSF process observed that ABE concentration (21.28 g/L) was higher than in the SSF (20.03 g/L) and lower compared with the SHF (22.21 g/L). The effect of the detoxification process and various ABE fermentation technologies on the composition of volatile compounds formed during fermentation and distillation were analyzed.
Collapse
Affiliation(s)
- Wojciech Dziemianowicz
- Department of Distillery Technology and Renewable Energy, Prof. Wacław Dąbrowski Institute of Agriculture and Food Biotechnology—State Research Institute, Powstańców Wielkopolskich 17, 85-090 Bydgoszcz, Poland; (K.K.); (A.Ś.)
| | | | | |
Collapse
|
2
|
Jilani SB. Deletion of yghZ in Escherichia coli promotes growth in presence of furfural with xylose as carbon source. FEMS Microbiol Lett 2024; 371:fnae028. [PMID: 38664064 DOI: 10.1093/femsle/fnae028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 02/23/2024] [Accepted: 04/24/2024] [Indexed: 05/15/2024] Open
Abstract
Thermo-acidic pretreatment of lignocellulosic biomass is required to make it amenable to microbial metabolism and results in generation of furfural due to breakdown of pentose sugars. Furfural is toxic to microbial metabolism and results in reduced microbial productivity and increased production costs. This study asks if deletion of yghZ gene which encodes a NADPH-dependent aldehyde reductase enzyme results in improved furfural tolerance in Escherichia coli host. The ∆yghZ strain-SSK201-was tested for tolerance to furfural in presence of 5% xylose as a carbon source in AM1 minimal medium. At 96 h and in presence of 1.0 g/L furfural, the culture harboring strain SSK201 displayed 4.5-fold higher biomass, 2-fold lower furfural concentration and 15.75-fold higher specific growth rate (µ) as compared to the parent strain SSK42. The furfural tolerance advantage of SSK201 was retained when the carbon source was switched to glucose in AM1 medium and was lost in rich LB medium. The findings have potential to be scaled up to a hydrolysate culture medium, which contains furan inhibitors and lack nutritionally rich components, under bioreactor cultivation and observe growth advantage of the ∆yghZ host. It harbors potential to generate robust industrial strains which can convert lignocellulosic carbon into metabolites of interest in a cost-efficient manner.
Collapse
Affiliation(s)
- S Bilal Jilani
- Institute of Biotechnology, Amity University, Manesar, Haryana 122413, India
- Microbial Engineering Group, International Center for Genetic Engineering and Biotechnology, New Delhi 110067, India
| |
Collapse
|
3
|
Tanis MH, Wallberg O, Galbe M, Al-Rudainy B. Lignin Extraction by Using Two-Step Fractionation: A Review. Molecules 2023; 29:98. [PMID: 38202680 PMCID: PMC10779531 DOI: 10.3390/molecules29010098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/12/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Lignocellulosic biomass represents the most abundant renewable carbon source on earth and is already used for energy and biofuel production. The pivotal step in the conversion process involving lignocellulosic biomass is pretreatment, which aims to disrupt the lignocellulose matrix. For effective pretreatment, a comprehensive understanding of the intricate structure of lignocellulose and its compositional properties during component disintegration and subsequent conversion is essential. The presence of lignin-carbohydrate complexes and covalent interactions between them within the lignocellulosic matrix confers a distinctively labile nature to hemicellulose. Meanwhile, the recalcitrant characteristics of lignin pose challenges in the fractionation process, particularly during delignification. Delignification is a critical step that directly impacts the purity of lignin and facilitates the breakdown of bonds involving lignin and lignin-carbohydrate complexes surrounding cellulose. This article discusses a two-step fractionation approach for efficient lignin extraction, providing viable paths for lignin-based valorization described in the literature. This approach allows for the creation of individual process streams for each component, tailored to extract their corresponding compounds.
Collapse
Affiliation(s)
| | | | | | - Basel Al-Rudainy
- Department of Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden; (M.H.T.); (O.W.); (M.G.)
| |
Collapse
|
4
|
Jilani SB, Olson DG. Mechanism of furfural toxicity and metabolic strategies to engineer tolerance in microbial strains. Microb Cell Fact 2023; 22:221. [PMID: 37891678 PMCID: PMC10612203 DOI: 10.1186/s12934-023-02223-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/05/2023] [Indexed: 10/29/2023] Open
Abstract
Lignocellulosic biomass represents a carbon neutral cheap and versatile source of carbon which can be converted to biofuels. A pretreatment step is frequently used to make the lignocellulosic carbon bioavailable for microbial metabolism. Dilute acid pretreatment at high temperature and pressure is commonly utilized to efficiently solubilize the pentose fraction by hydrolyzing the hemicellulose fibers and the process results in formation of furans-furfural and 5-hydroxymethyl furfural-and other inhibitors which are detrimental to metabolism. The presence of inhibitors in the medium reduce productivity of microbial biocatalysts and result in increased production costs. Furfural is the key furan inhibitor which acts synergistically along with other inhibitors present in the hydrolysate. In this review, the mode of furfural toxicity on microbial metabolism and metabolic strategies to increase tolerance is discussed. Shared cellular targets between furfural and acetic acid are compared followed by discussing further strategies to engineer tolerance. Finally, the possibility to use furfural as a model inhibitor of dilute acid pretreated lignocellulosic hydrolysate is discussed. The furfural tolerant strains will harbor an efficient lignocellulosic carbon to pyruvate conversion mechanism in presence of stressors in the medium. The pyruvate can be channeled to any metabolite of interest by appropriate modulation of downstream pathway of interest. The aim of this review is to emphasize the use of hydrolysate as a carbon source for bioproduction of biofuels and other compounds of industrial importance.
Collapse
Affiliation(s)
- S Bilal Jilani
- Thayer School of Engineering, Dartmouth College, 15 Thayer Drive, Hanover, NH, 03755, USA.
| | - Daniel G Olson
- Thayer School of Engineering, Dartmouth College, 15 Thayer Drive, Hanover, NH, 03755, USA
- Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| |
Collapse
|
5
|
Melo VSD, Gomes BM, Chambergo FS. Biochemical characterization of a xylose-tolerant GH43 β-xylosidase from Geobacillus thermodenitrificans. Carbohydr Res 2023; 532:108901. [PMID: 37487384 DOI: 10.1016/j.carres.2023.108901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/12/2023] [Accepted: 07/15/2023] [Indexed: 07/26/2023]
Abstract
Hemicelluloses are the second most abundant polysaccharide in plant biomass, in which xylan is the main constituent. Aiming at the total degradation of xylan and the obtention of fermentable sugars, several enzymes acting synergistically are required, especially β-xylosidases. In this study, β-xylosidase from Geobacillus thermodenitrificans (GtXyl) was expressed in E. coli BL21 and characterized. The enzyme GtXyl has been grouped within the family of glycoside hydrolases 43 (GH43). Results showed that GtXyl obtained the highest activity at pH 5.0 and temperature of 60 °C. In the additive's tests, the enzyme remained stable in the presence of metal ions and EDTA, and showed high tolerance to xylose, with a relative activity of 55.4% at 400 mM. The enzyme also presented bifunctional activity of β-xylosidase and α-l-arabinofuranosidase, with the highest activity on the substrate p-nitrophenyl-β-d-xylopyranoside. The specific activity on p-nitrophenyl-β-d-xylopyranoside was 18.33 U mg-1 and catalytic efficiency of 20.21 mM-1 s-1, which is comparable to other β-xylosidases reported in the literature. Putting together, the GtXyl enzyme presented interesting biochemical characteristics that are desirable for the application in the enzymatic hydrolysis of plant biomass, such as activity at higher temperatures, high thermostability and stability to metal ions.
Collapse
Affiliation(s)
- Vandierly Sampaio de Melo
- Laboratory of Biochemistry and Protein Biotechnology, School of Arts, Sciences and Humanities, University of São Paulo, Av. Arlindo Bettio, 1000, São Paulo, CEP: 03828000, Brazil
| | - Brisa Moreira Gomes
- Laboratory of Biochemistry and Protein Biotechnology, School of Arts, Sciences and Humanities, University of São Paulo, Av. Arlindo Bettio, 1000, São Paulo, CEP: 03828000, Brazil
| | - Felipe Santiago Chambergo
- Laboratory of Biochemistry and Protein Biotechnology, School of Arts, Sciences and Humanities, University of São Paulo, Av. Arlindo Bettio, 1000, São Paulo, CEP: 03828000, Brazil.
| |
Collapse
|
6
|
Kim J, Sunwoo I, Jo H, Kim Y, Kim SK, Jeong GT. Enhancement of galactose uptake for bioethanol production from Eucheuma denticulatum hydrolysate using galactose-adapted yeasts. Bioprocess Biosyst Eng 2023; 46:839-850. [PMID: 37004559 DOI: 10.1007/s00449-023-02868-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/21/2023] [Indexed: 04/04/2023]
Abstract
Eucheuma denticulatum is a red macroalgae with a high carbohydrate content. The fermentable sugars from E. denticulatum were obtained through sequential thermal acid hydrolysis, enzymatic saccharification, and detoxification. Thermal acid hydrolysis of E. denticulatum was optimized under the condition of 10% (w/v) slurry content and 300 mM HNO3 at 121 ℃ for 90 min. The maximum monosaccharide concentration after thermal acid hydrolysis was 31.0 g/L with an efficiency (ETAH) of 44.7%. By further enzymatic hydrolysis of pretreated biomass solution under 20 U/mL Cellic CTec2 at 50 ℃ and 160 rpm for 72 h, the maximum monosaccharide concentration reached 79.9 g/L with an efficiency of 66.2% (ES). To remove 5-hydroxymethylfurfural (5-HMF), a fermentation inhibitor, absorption using 2% activated carbon was performed for 2 min. Ethanol fermentation was performed using wild-type and high galactose-adapted strains of Saccharomyces cerevisiae, Kluyveromyces marxianus, and Candida lusitaniae. As a result, galactose-adapted strains showed higher ethanol production than wild-type strains. Especially, the fermentation result by adaptively evolved S. cerevisiae produced the highest ethanol of 37.6 g/L and with YEtOH of 0.48 g/g. Moreover, the transcript level of MIG1 in the galactose-adapted strain was slightly lower than that in the wild-type strain. The application of adaptive evolution of microorganisms was efficient for bioethanol production.
Collapse
Affiliation(s)
- Jieun Kim
- Department of Biotechnology, School of Marine, Fisheries and Life Science, Pukyong National University, Busan, 48513, Republic of Korea
| | - InYung Sunwoo
- Jeju Marine Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju, 63349, Republic of Korea
| | - Hyunjin Jo
- Department of Biotechnology, School of Marine, Fisheries and Life Science, Pukyong National University, Busan, 48513, Republic of Korea
| | - Yoojin Kim
- Department of Biotechnology, School of Marine, Fisheries and Life Science, Pukyong National University, Busan, 48513, Republic of Korea
| | - Sung-Koo Kim
- Department of Biotechnology, School of Marine, Fisheries and Life Science, Pukyong National University, Busan, 48513, Republic of Korea
| | - Gwi-Taek Jeong
- Department of Biotechnology, School of Marine, Fisheries and Life Science, Pukyong National University, Busan, 48513, Republic of Korea.
| |
Collapse
|
7
|
Nawaz A, Qadoos K, Haq IU, Feng Y, Mukhtar H, Huang R, Jiang K. Effect of pretreatment strategies on halophyte Atriplex crassifolia to improve saccharification using thermostable cellulases. Front Bioeng Biotechnol 2023; 11:1135424. [PMID: 36896009 PMCID: PMC9989029 DOI: 10.3389/fbioe.2023.1135424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 02/07/2023] [Indexed: 02/23/2023] Open
Abstract
Bioethanol is believed to be an influential revolutionary gift of biotechnology, owing to its elevating global demand and massive production. Pakistan is home to a rich diversity of halophytic flora, convertible into bounteous volumes of bioethanol. On the other hand, the accessibility to the cellulosic part of biomass is a major bottleneck in the successful application of biorefinery processes. The most common pre-treatment procedures existent include physicochemical and chemical approaches, which are not environmentally benign. To overcome these problems, biological pre-treatment has gained importance but the drawback is the low yield of the extracted monosaccharides. The current research was aimed at exploring the best pre-treatment method for the bioconversion of halophyte Atriplex crassifolia into saccharides using three thermostable cellulases. Atriplex crassifolia was subjected to acid, alkali and microwave pre-treatments, followed by compositional analysis of the pre-treated substrates. Maximum delignification i.e. 56.6% was observed in the substrate pre-treated using 3% HCl. Enzymatic saccharification using thermostable cellulases also validated the results where the highest saccharification yield i.e. 39.5% was observed for the sample pre-treated using same. Maximum enzymatic hydrolysis of 52.7% was obtained for 0.40 g of the pre-treated halophyte Atriplex crassifolia where Endo-1,4- β -glucanase (300U), Exo-1,4- β -glucanase (400U) and β -1,4-glucosidase (1000U) were simultaneously added and incubated for 6 h at 75°C. The reducing sugar slurry obtained after optimization of saccharification was utilized as glucose in submerged fermentation for bioethanol production. The fermentation medium was inoculated with Saccharomyces cerevisiae, incubated at 30°C and 180 rpm for 96 h. Ethanol production was estimated using potassium dichromate method. Maximum production of bioethanol i.e. 16.33% was noted at 72 h. It can be concluded from the study that Atriplex crassifolia owing to its high cellulosic content after pre-treatment using dilute acid method, yields substantial amount of reducing sugars and high saccharification rates when subjected to enzymatic hydrolysis using thermostable cellulases, under optimized reaction conditions. Hence, the halophyte Atriplex crassifolia is a beneficial substrate that can be utilized to extract fermentable saccharides for bioethanol production.
Collapse
Affiliation(s)
- Ali Nawaz
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, China
- Institute of Industrial Biotechnology, Government College University, Lahore, Pakistan
| | - Khadija Qadoos
- Institute of Industrial Biotechnology, Government College University, Lahore, Pakistan
| | - Ikram Ul Haq
- Institute of Industrial Biotechnology, Government College University, Lahore, Pakistan
| | - Yiwei Feng
- School of Clinical Medicine, Hangzhou Medical College, Hangzhou, China
| | - Hamid Mukhtar
- Institute of Industrial Biotechnology, Government College University, Lahore, Pakistan
| | - Rong Huang
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, China
| | - Kankan Jiang
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, China
| |
Collapse
|
8
|
Hydrothermal and Chemical Pretreatment Process for Bioethanol Production from Agricultural and Forest Lignocellulosic Wastes: Design and Modeling. CHEMISTRY AFRICA 2022. [DOI: 10.1007/s42250-022-00563-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
9
|
Hu X, Chen H, Zhang S, Song W, Li J, Wang K. Study on performance of carbon source released from fruit shells and the effect on biological denitrification in the advanced treatment. CHEMOSPHERE 2022; 307:136173. [PMID: 36030946 DOI: 10.1016/j.chemosphere.2022.136173] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/30/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
In order to solve the problem of shortage of carbon source for biological denitrification in advanced treatment of the effluent from secondary treatment of sewage, five kinds of fruit shells (pistachio shell, peanut shell, ginkgo shell, walnut shell and hazelnut shell) were preliminarily selected from eight kinds of fruit shells for experiments of static carbon release and denitrification. The carbon release performance (amount and law of carbon release and biodegradability of released carbon) and denitrification performance of different shells were investigated. Results showed that the peanut shell had the largest amount of carbon release (0.88 mg chemical oxygen demand [COD] g-1) and the highest removal rate of nitrate (NO3--N) (76.48% ± 4.06%). However, the released carbon could not be fully utilized by denitrifying bacteria, resulting in a (205.90% ± 59.49%) increase in effluent COD compared with influent. The amounts of carbon release of ginkgo nut shell, walnut shell, and hazelnut shell were low (0.45, 0.41, and 0.43 mg COD g-1, respectively). The released carbon could not be used easily by microorganisms. Meanwhile, the contents of degradable aromatic protein and protein-like in dissolved organic matter (DOM) were low. Even the fulvic acid-like with low biodegradability also appeared in the soaking solution of the hazelnut shell. The NO3--N and total nitrogen aveage removal rates were low in these three fruit shells and showed the removals within the 54.10-57.25% range and 52.21%-54.24% range, respectively. The amount of carbon release of pistachio shell was lower than that of peanut shell. However, the released carbon of the former was more biodegradable than that of the latter. Moreover, the relative molecular mass of DOM was small, and the contents of aromatic protein and protein-like were much higher than those of the four other kinds of fruit shells. The NO3--N removal rate (71.48% ± 0.98%) of pistachio shell was only slightly lower than that of peanut shell. In conclusion, pistachio shell was the best carbon source for biological denitrification in the advanced treatment.
Collapse
Affiliation(s)
- Xiaobing Hu
- Department of Municipal Engineering, School of Architectural Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, PR China; Engineering Research Center of Water Purification and Utilization Technology Based on Biofilm Process, Ministry of Education, Ma'anshan, Anhui, 243002, PR China
| | - Hongwei Chen
- Department of Municipal Engineering, School of Architectural Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, PR China.
| | - Shihua Zhang
- Department of Municipal Engineering, School of Architectural Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, PR China; Engineering Research Center of Water Purification and Utilization Technology Based on Biofilm Process, Ministry of Education, Ma'anshan, Anhui, 243002, PR China
| | - Weiwei Song
- Department of Municipal Engineering, School of Architectural Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, PR China
| | - Jingjing Li
- Department of Municipal Engineering, School of Architectural Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, PR China
| | - Kun Wang
- Department of Municipal Engineering, School of Architectural Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, PR China
| |
Collapse
|
10
|
Lee YG, Kim C, Kuanyshev N, Kang NK, Fatma Z, Wu ZY, Cheng MH, Singh V, Yoshikuni Y, Zhao H, Jin YS. Cas9-Based Metabolic Engineering of Issatchenkia orientalis for Enhanced Utilization of Cellulosic Hydrolysates. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:12085-12094. [PMID: 36103687 DOI: 10.1021/acs.jafc.2c04251] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Issatchenkia orientalis, exhibiting high tolerance against harsh environmental conditions, is a promising metabolic engineering host for producing fuels and chemicals from cellulosic hydrolysates containing fermentation inhibitors under acidic conditions. Although genetic tools for I. orientalis exist, they require auxotrophic mutants so that the selection of a host strain is limited. We developed a drug resistance gene (cloNAT)-based genome-editing method for engineering any I. orientalis strains and engineered I. orientalis strains isolated from various sources for xylose fermentation. Specifically, xylose reductase, xylitol dehydrogenase, and xylulokinase from Scheffersomyces stipitis were integrated into an intended chromosomal locus in four I. orientalis strains (SD108, IO21, IO45, and IO46) through Cas9-based genome editing. The resulting strains (SD108X, IO21X, IO45X, and IO46X) efficiently produced ethanol from cellulosic and hemicellulosic hydrolysates even though the pH adjustment and nitrogen source were not provided. As they presented different fermenting capacities, selection of a host I. orientalis strain was crucial for producing fuels and chemicals using cellulosic hydrolysates.
Collapse
Affiliation(s)
- Ye-Gi Lee
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, 1206 West Gregory Drive, Urbana, Illinois 61801, United States
- Department of Bio and Fermentation Convergence Technology, Kookmin University, Seoul 02707, South Korea
| | - Chanwoo Kim
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Nurzhan Kuanyshev
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, 1206 West Gregory Drive, Urbana, Illinois 61801, United States
| | - Nam Kyu Kang
- Department of Chemical Engineering, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, South Korea
| | - Zia Fatma
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Zong-Yen Wu
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Ming-Hsun Cheng
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Vijay Singh
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Yasuo Yoshikuni
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Huimin Zhao
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, 1206 West Gregory Drive, Urbana, Illinois 61801, United States
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Yong-Su Jin
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, 1206 West Gregory Drive, Urbana, Illinois 61801, United States
| |
Collapse
|
11
|
Zhai R, Hu J, Jin M. Towards efficient enzymatic saccharification of pretreated lignocellulose: Enzyme inhibition by lignin-derived phenolics and recent trends in mitigation strategies. Biotechnol Adv 2022; 61:108044. [PMID: 36152893 DOI: 10.1016/j.biotechadv.2022.108044] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/24/2022] [Accepted: 09/19/2022] [Indexed: 01/01/2023]
Abstract
Lignocellulosic biorefinery based on its sugar-platform has been considered as an efficient strategy to replace fossil fuel-based refinery. In the bioconversion process, pretreatment is an essential step to firstly open up lignocellulose cell wall structure and enhance the accessibility of carbohydrates to hydrolytic enzymes. However, various lignin and/or carbohydrates degradation products (e.g. phenolics, 5-hydroxymethylfurfural, furfural) also generated during pretreatment, which severely inhibit the following enzymatic hydrolysis and the downstream fermentation process. Among them, the lignin derived phenolics have been considered as the most inhibitory compounds and their inhibitory effects are highly dependent on the source of biomass and the type of pretreatment strategy. Although liquid-solid separation and subsequent washing can remove the lignin derived phenolics and other inhibitors, this is undesirable in the realistic industrial application where the whole slurry of pretreated biomass need to be directly used in the hydrolysis process. This review summarizes the phenolics formation mechanism for various commonly applied pretreatment methods and discusses the key factors that affect the inhibitory effect of phenolics on cellulose hydrolysis. In addition, the recent achievements on the rational design of inhibition mitigation strategies to boost cellulose hydrolysis for sugar-platform biorefinery are also introduced. This review also provides guidance for rational design detoxification strategies to facilitate whole slurry hydrolysis which helps to realize the industrialization of lignocellulose biorefinery.
Collapse
Affiliation(s)
- Rui Zhai
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China
| | - Jianguang Hu
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary T2N 1N4, Canada
| | - Mingjie Jin
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China.
| |
Collapse
|
12
|
Zhou Y, Lin D, Ye X, Sun B. Reuse of Acid‐treated Waste Corn Straw for Photocatalytic Hydrogen Production. ChemistrySelect 2022. [DOI: 10.1002/slct.202201596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yunlong Zhou
- School of Energy and Power Engineering Northeast Electric Power University Jilin City Jilin Province China
| | - Dongyao Lin
- School of Energy and Power Engineering Northeast Electric Power University Jilin City Jilin Province China
| | - Xiaoyuan Ye
- School of Energy and Power Engineering Northeast Electric Power University Jilin City Jilin Province China
| | - Bo Sun
- School of Energy and Power Engineering Northeast Electric Power University Jilin City Jilin Province China
| |
Collapse
|
13
|
Saha BC, Kennedy GJ, Bowman MJ, Qureshi N, Nichols NN. Itaconic acid production by Aspergillus terreus from glucose up to pilot scale and from corn stover and wheat straw hydrolysates using new manganese tolerant medium. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
14
|
Pienihäkkinen E, Lindfors C, Ohra-aho T, Oasmaa A. Improving Fast Pyrolysis Bio-Oil Yield and Quality by Alkali Removal from Feedstock. ENERGY & FUELS : AN AMERICAN CHEMICAL SOCIETY JOURNAL 2022; 36:3654-3664. [PMID: 35422574 PMCID: PMC8996825 DOI: 10.1021/acs.energyfuels.1c04331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/17/2022] [Indexed: 06/14/2023]
Abstract
Alkali removal from forest residues, eucalyptus residues, and wheat straw was studied by water and dilute nitric acid leaching. Leaching parameters were optimized for each feedstock in laboratory-scale experiments. After the optimization of leaching on the laboratory scale, nitric acid-leached and untreated feedstocks were pyrolyzed in a bench-scale bubbling fluidized bed unit. In the case of eucalyptus residues and wheat straw, nitric acid leaching was found to increase the organic liquid yield compared to untreated feedstock. In addition, the sugar content of the fast pyrolysis bio-oils was increased, and the alkali content reduced. On the other hand, the pyrolysis experiments with acid-leached forest residues were unsuccessful due to the bed agglomeration. These problems are expected to be a result of the lack of catalytically active elements in biomass which enhance especially the cracking reactions of lignin. Finally, the results were demonstrated in the pilot-scale unit where nitric acid-leached oat straw was pyrolyzed with high organic liquid yield.
Collapse
|
15
|
Production of Itaconic Acid by Aspergillus terreus from Sorghum Bran Hydrolysates and Optimization for Fermentative Production. Ind Biotechnol (New Rochelle N Y) 2022. [DOI: 10.1089/ind.2021.0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
16
|
Effect and optimization of NaOH combined with Fenton pretreatment conditions on enzymatic hydrolysis of poplar sawdust. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-021-01887-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
17
|
Jilani SB, Prasad R, Yazdani SS. Overexpression of Oxidoreductase YghA Confers Tolerance of Furfural in Ethanologenic Escherichia coli Strain SSK42. Appl Environ Microbiol 2021; 87:e0185521. [PMID: 34586907 PMCID: PMC8579976 DOI: 10.1128/aem.01855-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 09/21/2021] [Indexed: 02/02/2023] Open
Abstract
Furfural is a common furan inhibitor formed due to dehydration of pentose sugars, like xylose, and acts as an inhibitor of microbial metabolism. Overexpression of NADH-specific FucO and deletion of NADPH-specific YqhD had been a successful strategy in the past in conferring tolerance against furfural in Escherichia coli, which highlights the importance of oxidoreductases in conferring tolerance against furfural. In a screen consisting of various oxidoreductases, dehydrogenases, and reductases, we identified the yghA gene as an overexpression target to confer tolerance against furfural. YghA preferably used NADH as a cofactor and had an apparent Km value of 0.03 mM against furfural. In the presence of 1 g liter-1 furfural and 10% xylose (wt/vol), yghA overexpression in an ethanologenic E. coli strain SSK42 resulted in an ethanol efficiency of ∼97%, with a 5.3-fold increase in ethanol titers compared to the control. YghA also exhibited activity against the less toxic inhibitor 5-hydroxymethyl furfural, which is formed due to dehydration of hexose sugars, and thus is a formidable target for overexpression in ethanologenic strain for fermentation of sugars in biomass hydrolysate. IMPORTANCE Lignocellulosic biomass represents an inexhaustible source of carbon for second-generation biofuels. Thermo-acidic pretreatment of biomass is performed to loosen the lignocellulosic fibers and make the carbon bioavailable for microbial metabolism. The pretreatment process also results in the formation of inhibitors that inhibit microbial metabolism and increase production costs. Furfural is a potent furan inhibitor that increases the toxicity of other inhibitors present in the hydrolysate. Thus, it is desirable to engineer furfural tolerance in E. coli for efficient fermentation of hydrolysate sugars.
Collapse
Affiliation(s)
- S. Bilal Jilani
- Microbial Engineering Group, International Center for Genetic Engineering and Biotechnology, New Delhi, India
- DBT-ICGEB Centre for Advanced Bioenergy Research, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
- Institute of Biotechnology, Amity University, Manesar, Haryana, India
| | - Rajendra Prasad
- Institute of Biotechnology, Amity University, Manesar, Haryana, India
| | - Syed Shams Yazdani
- Microbial Engineering Group, International Center for Genetic Engineering and Biotechnology, New Delhi, India
- DBT-ICGEB Centre for Advanced Bioenergy Research, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| |
Collapse
|
18
|
Terasawat A, Phoolphundh S. Simultaneous Biological Pretreatment and Saccharification of Rice Straw by Ligninolytic Enzymes from Panus neostrigosus I9 and Commercial Cellulase. J Fungi (Basel) 2021; 7:853. [PMID: 34682275 PMCID: PMC8537424 DOI: 10.3390/jof7100853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/05/2021] [Accepted: 10/05/2021] [Indexed: 11/17/2022] Open
Abstract
The utilization of rice straw for biofuel production is limited by its composition. The pretreatment process is required to improve the enzymatic accessibility of polysaccharides in the biomass prior to enzymatic saccharification. In this study, simultaneous biological pretreatment and saccharification (SPS) of rice straw starting from laccase production by Panus neostrigosus I9 was operated in a 2-L fermenter. It was found that fungal physiology was strongly influenced by the agitation, and that the highest laccase production was obtained at an agitation speed of 750 rpm (209.96 ± 0.34 U/L). The dilution rate of 0.05 h-1 was set in continuous fermentation which resulted in laccase activity of 678.49 ± 20.39 U/L, approximately three times higher than that in batch culture. Response surface methodology (RSM) was applied to achieve the condition for maximum percentage of delignification. The maximum percentage of delignification of 45.55% was accomplished after pretreatment of rice straw with laccase enzyme 39.40 U/g rice straw at 43.70 °C for 11.19 h. Reducing sugar of 3.85 ± 0.15 g/L was obtained from the digested rice straw in a SPS reactor, while non-pretreated rice straw gave only 1.13 ± 0.10 g/L within 12 h of incubation. The results indicated that simultaneous biological pretreatment and saccharification (SPS) of rice straw by laccase helped to improve the accessibility of cellulose by cellulolytic enzymes.
Collapse
Affiliation(s)
| | - Sivawan Phoolphundh
- Department of Microbiology, Faculty of Science, King Mongkut’s University of Technology Thonburi, 126 Pracha-Uthid Road, Bang Mod, Thungkru, Bangkok 10140, Thailand;
| |
Collapse
|
19
|
Yang Y, Tian Z, Lan Y, Wang S, Chen H. An overview of biofuel power generation on policies and finance environment, applied biofuels, device and performance. JOURNAL OF TRAFFIC AND TRANSPORTATION ENGINEERING (ENGLISH EDITION) 2021. [DOI: 10.1016/j.jtte.2021.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
20
|
Masłowski M, Miedzianowska J, Delekta M, Czylkowska A, Strzelec K. Natural Rubber Biocomposites Filled with Phyto-Ashes Rich in Biogenic Silica Obtained from Wheat Straw and Field Horsetail. Polymers (Basel) 2021; 13:1177. [PMID: 33917621 PMCID: PMC8038769 DOI: 10.3390/polym13071177] [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: 03/15/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 12/31/2022] Open
Abstract
The rich structural hierarchy of plants permits the obtainment of porous structures which can be expected to show improved performances in fields such as pharmaceuticals and cosmetics, catalysis, drug delivery, adsorption, separation or sensors in various chemical reactions. On the other hand, porous materials can be an active additive to polymer composites. The aim of the study was to obtain natural rubber (NR) biocomposites with the addition of phyto-ashes reach in biogenic silica from plant biomass. For the production of bioadditives, a two-stage method of high-temperature heat treatment was used, preceded by acid hydrolysis of plant tissues in the form of horsetail and wheat straw. Hydrolysis was performed with hydrochloric and citric acid. The efficiency of the processes and their influence on the elemental composition, surface morphology, thermal stability and particle size of the fillers were determined. Modified bioadditives were introduced into the elastomer matrix and their processing properties, as well as the vulcanization characteristics, were examined. Static mechanical properties (tensile strength, elongation at break, stress at 100%, 200% and 300% elongation), dynamic-mechanical analysis and the influence of additives on the cross-link density of the composites were determined. Structural analysis was performed using scanning electron microscopy. It was found that the field horsetail and cereal straw are plants rich in many valuable chemical compounds, especially silica. The specific and appropriate treatment of these plants can lead to bioadditives that significantly affect the properties of rubber materials.
Collapse
Affiliation(s)
- Marcin Masłowski
- Institute of Polymer & Dye Technology, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland; (J.M.); (M.D.); (K.S.)
| | - Justyna Miedzianowska
- Institute of Polymer & Dye Technology, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland; (J.M.); (M.D.); (K.S.)
| | - Maciej Delekta
- Institute of Polymer & Dye Technology, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland; (J.M.); (M.D.); (K.S.)
| | - Agnieszka Czylkowska
- Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland;
| | - Krzysztof Strzelec
- Institute of Polymer & Dye Technology, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland; (J.M.); (M.D.); (K.S.)
| |
Collapse
|
21
|
Kourilova X, Novackova I, Koller M, Obruca S. Evaluation of mesophilic Burkholderia sacchari, thermophilic Schlegelella thermodepolymerans and halophilic Halomonas halophila for polyhydroxyalkanoates production on model media mimicking lignocellulose hydrolysates. BIORESOURCE TECHNOLOGY 2021; 325:124704. [PMID: 33493750 DOI: 10.1016/j.biortech.2021.124704] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
In this work, the mesophilic bacterium Burkholderia sacchari, the halophilic bacterium Halomonas halophila, and the thermophilic bacterium Schlegelella thermodepolymerans were evaluated with regards to their suitability for polyhydroxyalkanoates (PHA) production from model media mimicking lignocellulose hydrolysates. B. sacchari was capable of utilizing all the tested "model hydrolysates", yielding comparable PHA titers and turning out as very robust against lignocellulose-derived microbial inhibitors. On the contrary, H. halophila reached substantially higher PHA titers on hexoses-rich media, while S. thermodepolymerans preferred media rich in pentoses. Both extremophiles were more sensitive to microbial inhibitors than B. sacchari. Nevertheless, considering substantially higher PHA productivity of both extremophiles even in the presence of microbial inhibitors and also other positive factors associated with utilization of extremophiles, such as the reduced risk of microbial contamination, both H. halophila and S. thermodepolymerans are auspicious candidates for sustainable PHA production from abundantly available, inexpensive lignocelluloses.
Collapse
Affiliation(s)
- Xenie Kourilova
- Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
| | - Ivana Novackova
- Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
| | - Martin Koller
- Institute of Chemistry, NAWI Graz, University of Graz, Heinrichstrasse 28/VI, 8010 Graz, Austria; ARENA Arbeitsgemeinschaft für Ressourcenschonende & Nachhaltige Technologien, Inffeldgasse 21b, 11 8010 Graz, Austria
| | - Stanislav Obruca
- Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.
| |
Collapse
|
22
|
Abstract
Worldwide demand for ethanol alternative fuel has been emerging day by day owing to the rapid population growth and industrialization. Culturing microalgae as an alternative feedstock is anticipated to be a potentially significant approach for sustainable bioethanol biofuel production. Microalgae are abundant in nature, which grow at faster rates with a capability of storing high lipid and starch/cellulose contents inside their cells. This process offers several environmental advantages, including the effective utilization of land, good CO2 sequestration without entering into "food against fuel" dispute. This chapter focuses on the methods and processes used for the production of bioethanol biofuels from algae. Thus, it also covers significant achievements in the research and developments on algae bioethanol production, mainly including pretreatment, hydrolysis, and fermentation of algae biomass. The processes of producing biodiesel, biogas, and hydrogen have also been discussed.
Collapse
Affiliation(s)
- Vineet Kumar Soni
- Sustainable Materials and Catalysis Research Laboratory (SMCRL), Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, India
| | - R Krishnapriya
- Sustainable Materials and Catalysis Research Laboratory (SMCRL), Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, India
| | - Rakesh Kumar Sharma
- Sustainable Materials and Catalysis Research Laboratory (SMCRL), Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, India.
| |
Collapse
|
23
|
Malik S, Rana V, Joshi G, Gupta PK, Sharma A. Valorization of Wheat Straw for the Paper Industry: Pre-extraction of Reducing Sugars and Its Effect on Pulping and Papermaking Properties. ACS OMEGA 2020; 5:30704-30715. [PMID: 33283119 PMCID: PMC7711938 DOI: 10.1021/acsomega.0c04883] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 10/30/2020] [Indexed: 06/12/2023]
Abstract
Cleaner production of sugars and pulp from renewable feedstocks has captured significant scientific attention in the recent past because they can be used for various end applications. In the papermaking industry, a major fraction of hemicellulosic sugars is lost during the pulping. The present study aims at retrieving these hemicellulosic sugars through alkali-, hot-water-, and acid-mediated extraction prior to pulping, which otherwise would have been lost during pulping and washing of pulp. These retrieved sugars can be used as feedstocks for renewable energy and value-added products. Different pretreatments were applied, aided with varying temperature, chemical concentrations, and time. Substantial amounts of total reducing sugars (TRSs) up to 21.98, 13.2, and 15.01% were extracted prior to pulping by acid, alkali, and hot-water pretreatments. Compositions of mono sugars present in the treated liquor were also characterized and confirmed by high-performance liquid chromatography analysis. The morphological changes in the wheat straw after pre-extraction were studied using the field emission gun scanning electron microscopy technique. Pulping of untreated and pretreated wheat straw was carried out at different alkali charges (12, 14, and 16% NaOH). Among all, acid-pretreated straw showed an increase in pulp yield by 10.9% at a 16% alkali charge. Physical strength properties of different pulps were further examined. Alkali- and hot-water-pretreated straw pulp retained 94.26 and 83.16% tensile indices and 92.43 and 87.02% burst indices, respectively. An increase in tear index up to 4.32, 2.01, and 2.30% for alkali-, hot-water-, and acid-pretreated straw pulp was achieved, respectively. Hot-water- and alkali-pretreated wheat straw was observed to be conducive for paper production. The integrated use of wheat straw for extraction of underutilized sugars and pulp production in this way may serve as a key stepping stone for future biorefinery designs in pulp and paper mills.
Collapse
Affiliation(s)
- Shuank Malik
- Cellulose & Paper Discipline, Forest
Products Division, Forest Research Institute, P.O. New Forest, Dehradun, Uttarakhand 248006, India
| | - Vikas Rana
- Cellulose & Paper Discipline, Forest
Products Division, Forest Research Institute, P.O. New Forest, Dehradun, Uttarakhand 248006, India
| | - Gyanesh Joshi
- Cellulose & Paper Discipline, Forest
Products Division, Forest Research Institute, P.O. New Forest, Dehradun, Uttarakhand 248006, India
| | - Praveen Kumar Gupta
- Cellulose & Paper Discipline, Forest
Products Division, Forest Research Institute, P.O. New Forest, Dehradun, Uttarakhand 248006, India
| | - Ashish Sharma
- Cellulose & Paper Discipline, Forest
Products Division, Forest Research Institute, P.O. New Forest, Dehradun, Uttarakhand 248006, India
| |
Collapse
|
24
|
Farmanbordar S, Amiri H, Karimi K. Synergy of municipal solid waste co-processing with lignocellulosic waste for improved biobutanol production. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 118:45-54. [PMID: 32889233 DOI: 10.1016/j.wasman.2020.07.053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/15/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
Co-processing of lignocellulosic wastes, e.g., garden and paper wastes, and the organic matters fraction of municipal solid waste (OMSW) in an integrated bioprocess is a possible approach to realize the potential of wastes for biobutanol production. Dilute acid pretreatment is a multi-functional stage for breaking the recalcitrant lignocellulose's structure, hydrolyzing hemicellulose, and hydrolyzing/solubilizing starch, leading to a pretreated solid and a rich hydrolysate. In this study, dilute-acid pretreatment of the combination of wastepaper and OMSW, composite I, as well as garden waste and OMSW, composite II, at severe conditions resulted in "pretreatment hydrolysates" containing 33.7 and 19.4 g/L sugar along with 18.9 and 33.2 g/L soluble starch, respectively. In addition, the hydrolysis of solid remained after the pretreatment of composite I and II resulted in "enzymatic hydrolysates" comprising 19.4 and 33 g/L sugar, respectively. The fermentation of the pretreatment hydrolysates and enzymatic hydrolysates resulted in 3.5 and 6.4 g/L ABE from composite I and 15 and 5.2 g/L ABE from composite II, respectively. In this process, 148 and 173 g ABE (60 and 100 g gasoline equivalent/kg) was obtained from each kg composite I and composite II, respectively, where co-processing of OMSW with lignocellulosic wastes resulted in 10 and 49% higher ABE than that produced from the individual substrates.
Collapse
Affiliation(s)
- Sara Farmanbordar
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Hamid Amiri
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan 81746-73441, Iran; Environmental Research Institute, University of Isfahan, Isfahan 81746-73441, Iran.
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| |
Collapse
|
25
|
Zou X, Li S, Wang P, Li B, Feng Y, Yang ST. Sustainable production and biomedical application of polymalic acid from renewable biomass and food processing wastes. Crit Rev Biotechnol 2020; 41:216-228. [PMID: 33153315 DOI: 10.1080/07388551.2020.1844632] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Polymalic acid (PMA), a homopolymer of L-malic acid (MA) generated from a yeast-like fungus Aureobasidium pullulans, has unique properties and many applications in food, biomedical, and environmental fields. Acid hydrolysis of PMA, releasing the monomer MA, has become a novel process for the production of bio-based MA, which currently is produced by chemical synthesis using petroleum-derived feedstocks. Recently, current researches attempted to develop economically competitive process for PMA and MA production from renewable biomass feedstocks. Compared to lignocellulosic biomass, PMA and MA production from low-value food processing wastes or by-products, generated from corn, sugarcane, or soybean refinery industries, showed more economical and sustainable for developing a MA derivatives platform from biomass biorefinery to chemical conversion. In the review, we compared the process feasibility for PMA fermentation with lignocellulosic biomass and food process wastes. Some useful strategies for metabolic engineering are summarized. Its changeable applicability and future prospects in food and biomedical fields are also discussed.
Collapse
Affiliation(s)
- Xiang Zou
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
| | - Shanshan Li
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
| | - Pan Wang
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
| | - Bingqin Li
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
| | - Yingying Feng
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
| | - Shang-Tian Yang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
| |
Collapse
|
26
|
Sharma S, Singh P, Kumar S. Responses of Soil Carbon Pools, Enzymatic Activity, and Crop Yields to Nitrogen and Straw Incorporation in a Rice-Wheat Cropping System in North-Western India. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2020. [DOI: 10.3389/fsufs.2020.532704] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
27
|
Production of Cellulosic Ethanol from Enzymatically Hydrolysed Wheat Straws. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10217638] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The aim of this study is to find the optimal pretreatment conditions and hydrolysis in order to obtain a high yield of bioethanol from wheat straw. The pretreatments were performed with different concentrations of sulphuric acid 1, 2 and 3% (v/v), and were followed by an enzymatic hydrolysis that was performed by varying the solid-to-liquid ratio (1/20, 1/25 and 1/30 g/mL) and the enzyme dose (30/30 µL/g, 60/60 µL/g and 90/90 µL/g Viscozyme® L/Celluclast® 1.5 L). This mix of enzymes was used for the first time in the hydrolysis process of wheat straws which was previously pretreated with dilute sulfuric acid. Scanning electron microscopy indicated significant differences in the structural composition of the samples because of the pretreatment with H2SO4 at different concentrations, and ATR-FTIR analysis highlighted the changes in the chemical composition in the pretreated wheat straw as compared to the untreated one. HPLC-RID was used to identify and quantify the carbohydrates content resulted from enzymatic hydrolysis to evaluate the potential of using wheat straws as a raw material for production of cellulosic ethanol in Romania. The highest degradation of lignocellulosic material was obtained in the case of pretreatment with 3% H2SO4 (v/v), a solid-to-liquid ratio of 1/30 and an enzyme dose of 90/90 µL/g. Simultaneous saccharification and fermentation were performed using Saccharomyces cerevisiae yeast, and for monitoring the fermentation process a BlueSens equipment was used provided with ethanol, O2 and CO2 cap sensors mounted on the fermentation flasks. The highest concentration of bioethanol was obtained after 48 h of fermentation and it reached 1.20% (v/v).
Collapse
|
28
|
Deconstruction of banana peel for carbohydrate fractionation. Bioprocess Biosyst Eng 2020; 44:297-306. [PMID: 32948889 DOI: 10.1007/s00449-020-02442-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 09/06/2020] [Indexed: 10/23/2022]
Abstract
The deconstruction of banana peel for carbohydrate recovery was performed by sequential treatment (acid, alkaline, and enzymatic). The pretreatment with citric acid promoted the extraction of pectin, resulting in a yield of 8%. In addition, xylose and XOS, 348.5 and 17.3 mg/g xylan, respectively, were also quantified in acidic liquor as a result of partial depolymerization of hemicellulose. The spent solid was pretreated with alkaline solution (NaOH or KOH) for delignification and release of residual carbohydrates from the hemicellulose. The yields of xylose and arabinose (225.2 and 174.0 mg/g hemicellulose) were approximately 40% higher in the pretreatment with KOH, while pretreatment with NaOH promoted higher delignification (67%), XOS yield (32.6 mg/g xylan), and preservation of cellulosic fraction. Finally, the spent alkaline solid, rich in cellulose (76%), was treated enzymatically to release glucose, reaching the final concentration of 28.2 g/L. The mass balance showed that through sequential treatment, 9.9 g of xylose, 0.5 g of XOS, and 8.2 g of glucose were obtained from 100 g of raw banana peels, representing 65.8% and 46.5% conversion of hemicellulose and cellulose, respectively. The study of the fractionation of carbohydrates in banana peel proved to be a useful tool for valorization, mainly of the hemicellulose fraction for the production of XOS and xylose with high value applications in the food industry.
Collapse
|
29
|
Villa Gomez DK, Becerra Castañeda P, Montoya Rosales JDJ, González Rodríguez LM. Anaerobic digestion of bean straw applying a fungal pre-treatment and using cow manure as co-substrate. ENVIRONMENTAL TECHNOLOGY 2020; 41:2863-2874. [PMID: 30811276 DOI: 10.1080/09593330.2019.1587004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
The significant amounts of agriculture residues such as bean straw (BS) in rural areas, advises its valorisation for energy recovery. The feasibility of using BS for biogas production through anaerobic digestion was assessed. Prior to this, a fungal pre-treatment to hydrolyse BS with Pleutorus ostreatus was studied at 30°C and 100 rpm in orbital incubators with 1, 10 and 30 mg fungus/g straw for 14, 21 and 28 days. Then, anaerobic digestion experiments were performed in batch with cow manure (CM) as co-substrate and pre-treated BS at ratios (g/g total solids) of 1/2, 1/3, 1/5 and 0/1. Maximum lignin (18%) and hemicellulose (44%) degradation occurred at 30 mg fungus/g straw and 28 days, along with the highest total methane yield (38 mL CH4/g VS loaded). The total amount of methane decreased when increasing CM in the experiments (701.4-191.5 mL CH4), suggesting inhibition owed to a component of CM. Self-sustained biogas production of BS occurred due to the presence of bacteria (i.e. Bacilli and Bacteroidia) and archea (i.e. Methanobacteria and Methanomicrobia). However, the usage of a full-active inoculum should be studied for higher biogas production rates.
Collapse
Affiliation(s)
| | - Patricia Becerra Castañeda
- Unidad Profesional Interdisciplinaria De Ingeniería Campus Zacatecas, Instituto Politécnico Nacional, Zacatecas, México
| | - Jose de Jesus Montoya Rosales
- Unidad Profesional Interdisciplinaria De Ingeniería Campus Zacatecas, Instituto Politécnico Nacional, Zacatecas, México
| | - Luis Mario González Rodríguez
- Unidad Profesional Interdisciplinaria De Ingeniería Campus Zacatecas, Instituto Politécnico Nacional, Zacatecas, México
| |
Collapse
|
30
|
Rodríguez-Valderrama S, Escamilla-Alvarado C, Rivas-García P, Magnin JP, Alcalá-Rodríguez M, García-Reyes RB. Biorefinery concept comprising acid hydrolysis, dark fermentation, and anaerobic digestion for co-processing of fruit and vegetable wastes and corn stover. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:28585-28596. [PMID: 32266619 DOI: 10.1007/s11356-020-08580-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 03/25/2020] [Indexed: 06/11/2023]
Abstract
A new biorefinery conceptual process is proposed for biohydrogen and biomethane production from a combination of fruits and vegetable wastes (FVW) and corn stover (CS). The objective of this work was to perform the acid hydrolysis (HCl 0.5% v/v, 120 °C, 2 h) of the FVW and CS at 3:1 dry basis ratio, and to process its main physical phases, liquid hydrolyzates (LH) and hydrolyzed solids (HS), by mesophilic dark fermentation (DF) and anaerobic digestion (AD), respectively. In DF of LH as carbon source, hydrogen was produced at maximum rate of 2.6 mL H2/(gglucose h) and maximum accumulation of 223.8 mL H2/gglucose, equivalent to 2 mol H2/molglucose, in a butyric-pathway-driven fermentation. HS were digested to methane production assessing inoculum to substrate ratios in the range 2-4 ginoculum/gVS. The main results in AD were 14 mmol CH4/gvs. The biorefinery demonstrated the feasibility to integrate the acid hydrolysis as pretreatment and subsequently use the LH for hydrogen production, and the HS for methane production, with an energy yield recovery of 9.7 kJ/gvs, being the energy contribution from anaerobic digestion 8-fold higher than of dark fermentation.
Collapse
Affiliation(s)
- Santiago Rodríguez-Valderrama
- Universidad Autónoma de Nuevo León, Centre for Research on Biotechnology and Nanotechnology (CIByN), Faculty of Chemical Sciences, Engineering and Sustainable Bioprocesses Group, Parque de Investigación e Innovación Tecnológica, km 10 Autopista al Aeropuerto Internacional Mariano Escobedo, 66629, Apodaca, Nuevo León, Mexico
| | - Carlos Escamilla-Alvarado
- Universidad Autónoma de Nuevo León, Centre for Research on Biotechnology and Nanotechnology (CIByN), Faculty of Chemical Sciences, Engineering and Sustainable Bioprocesses Group, Parque de Investigación e Innovación Tecnológica, km 10 Autopista al Aeropuerto Internacional Mariano Escobedo, 66629, Apodaca, Nuevo León, Mexico.
| | - Pasiano Rivas-García
- Universidad Autónoma de Nuevo León, Centre for Research on Biotechnology and Nanotechnology (CIByN), Faculty of Chemical Sciences, Engineering and Sustainable Bioprocesses Group, Parque de Investigación e Innovación Tecnológica, km 10 Autopista al Aeropuerto Internacional Mariano Escobedo, 66629, Apodaca, Nuevo León, Mexico
| | - Jean-Pierre Magnin
- Univ. Grenoble Alpes, Grenoble INP*, LEPMI, * Institute of Engineering Univ. Grenoble Alpes, CNRS, 38000, Grenoble, France
| | - Mónica Alcalá-Rodríguez
- Universidad Autónoma de Nuevo León, Faculty of Chemical Sciences, Av. Universidad S/N, Ciudad Universitaria, San Nicolás de los Garza, N.L.,, 66455, Mexico
| | - Refugio Bernardo García-Reyes
- Universidad Autónoma de Nuevo León, Faculty of Chemical Sciences, Av. Universidad S/N, Ciudad Universitaria, San Nicolás de los Garza, N.L.,, 66455, Mexico
| |
Collapse
|
31
|
Žunar B, Trontel A, Svetec Miklenić M, Prah JL, Štafa A, Marđetko N, Novak M, Šantek B, Svetec IK. Metabolically engineered Lactobacillus gasseri JCM 1131 as a novel producer of optically pure L- and D-lactate. World J Microbiol Biotechnol 2020; 36:111. [PMID: 32656603 DOI: 10.1007/s11274-020-02887-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 07/02/2020] [Indexed: 12/17/2022]
Abstract
High-quality environmentally-friendly bioplastics can be produced by mixing poly-L-lactate with poly-D-lactate. On an industrial scale, this process simultaneously consumes large amounts of both optically pure lactate stereoisomers. However, because optimal growth conditions of L-lactate producers often differ from those of D-lactate producers, each stereoisomer is produced in a specialised facility, which raises cost and lowers sustainability. To address this challenge, we metabolically engineered Lactobacillus gasseri JCM 1131T, a bioprocess-friendly and genetically malleable strain of homofermentative lactic acid bacterium, to efficiently produce either pure L- or pure D-lactate under the same bioprocess conditions. Transformation of L. gasseri with plasmids carrying additional genes for L- or D-lactate dehydrogenases failed to affect the ratio of produced stereoisomers, but inactivation of the endogenous genes created strains which yielded 0.96 g of either L- or D-lactate per gram of glucose. In this study, the plasmid pHBintE, routinely used for gene disruption in Bacillus megaterium, was used for the first time to inactivate genes in lactobacilli. Strains with inactivated genes for endogenous lactate dehydrogenases efficiently fermented sugars released by enzymatic hydrolysis of alkali pre-treated wheat straw, an abundant lignocellulose-containing raw material, producing 0.37-0.42 g of lactate per gram of solid part of alkali-treated wheat straw. Thus, the constructed strains are primed to serve as producers of both optically pure L-lactate and D-lactate in the next-generation biorefineries.
Collapse
Affiliation(s)
- Bojan Žunar
- Laboratory for Biology and Microbial Genetics, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Antonija Trontel
- Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Marina Svetec Miklenić
- Laboratory for Biology and Microbial Genetics, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Juliana Lana Prah
- Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Anamarija Štafa
- Laboratory for Biology and Microbial Genetics, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Nenad Marđetko
- Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Mario Novak
- Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Božidar Šantek
- Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Ivan Krešimir Svetec
- Laboratory for Biology and Microbial Genetics, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia.
| |
Collapse
|
32
|
Novel Routes in Transformation of Lignocellulosic Biomass to Furan Platform Chemicals: From Pretreatment to Enzyme Catalysis. Catalysts 2020. [DOI: 10.3390/catal10070743] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The constant depletion of fossil fuels along with the increasing need for novel materials, necessitate the development of alternative routes for polymer synthesis. Lignocellulosic biomass, the most abundant carbon source on the planet, can serve as a renewable starting material for the design of environmentally-friendly processes for the synthesis of polyesters, polyamides and other polymers with significant value. The present review provides an overview of the main processes that have been reported throughout the literature for the production of bio-based monomers from lignocellulose, focusing on physicochemical procedures and biocatalysis. An extensive description of all different stages for the production of furans is presented, starting from physicochemical pretreatment of biomass and biocatalytic decomposition to monomeric sugars, coupled with isomerization by enzymes prior to chemical dehydration by acid Lewis catalysts. A summary of all biotransformations of furans carried out by enzymes is also described, focusing on galactose, glyoxal and aryl-alcohol oxidases, monooxygenases and transaminases for the production of oxidized derivatives and amines. The increased interest in these products in polymer chemistry can lead to a redirection of biomass valorization from second generation biofuels to chemical synthesis, by creating novel pathways to produce bio-based polymers.
Collapse
|
33
|
Guo H, Wang P, Chang J, Yin Q, Liu C, Li M, Dang X, Lu F. Effect of processed maize stover as an alternative energy source in swine production. JOURNAL OF ANIMAL AND FEED SCIENCES 2020. [DOI: 10.22358/jafs/124044/2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
34
|
Abstract
Biodegradable polylactic acid material is manufactured from lactic acid, mainly produced by microbial fermentation. The high production cost of lactic acid still remains the major limitation for its application, indicating that the cost of carbon sources for the production of lactic acid has to be minimized. In addition, a lack of source availability of food crop and lignocellulosic biomass has encouraged researchers and industries to explore new feedstocks for microbial lactic acid fermentation. Seaweeds have attracted considerable attention as a carbon source for microbial fermentation owing to their non-terrestrial origin, fast growth, and photoautotrophic nature. The proximate compositions study of red, brown, and green seaweeds indicated that Gracilaria sp. has the highest carbohydrate content. The conditions were optimized for the saccharification of the seaweeds, and the results indicated that Gracilaria sp. yielded the highest reducing sugar content. Optimal lactic acid fermentation parameters, such as cell inoculum, agitation, and temperature, were determined to be 6% (v/v), 0 rpm, and 30 °C, respectively. Gracilaria sp. hydrolysates fermented by lactic acid bacteria at optimal conditions yielded a final lactic acid concentration of 19.32 g/L.
Collapse
|
35
|
Lignocellulosic Biomass Fractionation by Mineral Acids and Resulting Extract Purification Processes: Conditions, Yields, and Purities. Molecules 2019; 24:molecules24234273. [PMID: 31771199 PMCID: PMC6930647 DOI: 10.3390/molecules24234273] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/13/2019] [Accepted: 11/14/2019] [Indexed: 11/17/2022] Open
Abstract
Fractionation of lignocellulose is a fundamental step in the valorization of cellulose, hemicelluloses, and lignin to produce various sustainable fuels and chemicals. Mineral acid fractionation is one of the most applied process and leads to the solubilization and hydrolysis of cellulose and hemicelluloses, whereas most of the lignin remains insoluble and can be separated from the extract. The obtained monomeric sugars in the acid extract are in solution with salts, sugar degradation products, and phenolic molecules. Downstream processing is required to purify the sugars and further valorize them into fuels or chemicals with the use of chemical or biochemical reactions. This purification step also allows the recycling of the mineral acid and the valorization of the sugar degradation products and the co-extracted phenolic molecules, adding value to the whole biorefinery scheme. Many purification techniques have been studied, providing several options in terms of yields, purities, and cost of the process. This review presents the conditions used for the mineral acid fractionation step and a wide variety of purification techniques applied on the obtained hydrolysate, with a focus on the associated yields and purities. Values from the literature are expressed in a standard way in order to simplify comparison between the different processes.
Collapse
|
36
|
Emerging technologies for the pretreatment of lignocellulosic materials for bio-based products. Appl Microbiol Biotechnol 2019; 104:455-473. [DOI: 10.1007/s00253-019-10158-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/19/2019] [Accepted: 09/24/2019] [Indexed: 10/25/2022]
|
37
|
Rosales-Calderon O, Arantes V. A review on commercial-scale high-value products that can be produced alongside cellulosic ethanol. BIOTECHNOLOGY FOR BIOFUELS 2019; 12:240. [PMID: 31624502 PMCID: PMC6781352 DOI: 10.1186/s13068-019-1529-1] [Citation(s) in RCA: 138] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 07/17/2019] [Indexed: 05/03/2023]
Abstract
The demand for fossil derivate fuels and chemicals has increased, augmenting concerns on climate change, global economic stability, and sustainability on fossil resources. Therefore, the production of fuels and chemicals from alternative and renewable resources has attracted considerable and growing attention. Ethanol is a promising biofuel that can reduce the consumption of gasoline in the transportation sector and related greenhouse gas (GHG) emissions. Lignocellulosic biomass is a promising feedstock to produce bioethanol (cellulosic ethanol) because of its abundance and low cost. Since the conversion of lignocellulose to ethanol is complex and expensive, the cellulosic ethanol price cannot compete with those of the fossil derivate fuels. A promising strategy to lower the production cost of cellulosic ethanol is developing a biorefinery which produces ethanol and other high-value chemicals from lignocellulose. The selection of such chemicals is difficult because there are hundreds of products that can be produced from lignocellulose. Multiple reviews and reports have described a small group of lignocellulose derivate compounds that have the potential to be commercialized. Some of these products are in the bench scale and require extensive research and time before they can be industrially produced. This review examines chemicals and materials with a Technology Readiness Level (TRL) of at least 8, which have reached a commercial scale and could be shortly or immediately integrated into a cellulosic ethanol process.
Collapse
Affiliation(s)
- Oscar Rosales-Calderon
- Department of Biotechnology, Lorena School of Engineering, University of Sao Paulo, Estrada Municipal do Campinho, Lorena, SP CEP 12602-810 Brazil
| | - Valdeir Arantes
- Department of Biotechnology, Lorena School of Engineering, University of Sao Paulo, Estrada Municipal do Campinho, Lorena, SP CEP 12602-810 Brazil
| |
Collapse
|
38
|
Insight into Pretreatment Methods of Lignocellulosic Biomass to Increase Biogas Yield: Current State, Challenges, and Opportunities. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9183721] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Lignocellulosic biomass is recalcitrant due to its heterogeneous structure, which is one of the major limitations for its use as a feedstock for methane production. Although different pretreatment methods are being used, intermediaries formed are known to show adverse effect on microorganisms involved in methane formation. This review, apart from highlighting the efficiency and limitations of the different pretreatment methods from engineering, chemical, and biochemical point of views, will discuss the strategies to increase the carbon recovery in the form of methane by way of amending pretreatments to lower inhibitory effects on microbial groups and by optimizing process conditions.
Collapse
|
39
|
Li J, Liu D, Zhang M, Roozeboom KL, Wang D. Boosting fermentable sugars by integrating magnesium oxide-treated corn stover and corn stover liquor without washing and detoxification. BIORESOURCE TECHNOLOGY 2019; 288:121586. [PMID: 31176203 DOI: 10.1016/j.biortech.2019.121586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 05/28/2019] [Accepted: 05/29/2019] [Indexed: 06/09/2023]
Abstract
Integration of MgO-treated corn stover and corn stover liquor for enzymatic hydrolysis was studied to improve sugar yield and concentration as well as to simplify the bioconversion process. Results showed that under the same enzymatic hydrolysis conditions (2 mL enzyme/g biomass and 10% substrate loading), MgO-treated corn stover plus corn stover liquor had a similar glucose yield (70.4 vs. 68.8%) and concentration (40.4 vs. 41.5 g/L) but a higher xylose yield (56.6 vs. 25.3%) and concentration (16.7 vs. 10.6 g/L) compared with using MgO-treated corn stover only. Corn stover slurry from MgO pretreatment was near-neutral and free of 5-hydroxymethylfurfural and furfural, eliminating the need for washing and detoxification and lightening the burden for wastewater treatment. In addition, Tween 80 significantly reduced the irreversible binding of lignin to enzyme, increasing xylose and glucose yields by 14.7 and 6.2% and sugar concentration by 7.4 g/L, respectively.
Collapse
Affiliation(s)
- Jun Li
- Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, United States
| | - Dan Liu
- Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, United States; College of Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Meng Zhang
- Department of Industrial and Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506, United States
| | - Kraig L Roozeboom
- Department of Agronomy, Kansas State University, Manhattan, KS 66506, United States
| | - Donghai Wang
- Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, United States.
| |
Collapse
|
40
|
Dong M, Wang S, Xiao G, Xu F, Hu W, Li Q, Chen J, Li W. Cellulase production by Aspergillus fumigatus MS13.1 mutant generated by heavy ion mutagenesis and its efficient saccharification of pretreated sweet sorghum straw. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
41
|
|
42
|
Momayez F, Karimi K, Sárvári Horváth I. Sustainable and efficient sugar production from wheat straw by pretreatment with biogas digestate. RSC Adv 2019; 9:27692-27701. [PMID: 35529226 PMCID: PMC9070756 DOI: 10.1039/c9ra05285b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 08/28/2019] [Indexed: 11/22/2022] Open
Abstract
The use of liquid fraction of biogas digestate (LFBD) instead of fresh water (hydrothermal) for the pretreatment of wheat straw was evaluated to improve the yield of released sugars during the following hydrolysis step. The pretreatments were conducted at temperatures of 130, 160, and 190 °C for 30 and 60 min. In most of the cases, pretreatment using LFBD led to higher glucose yields and higher total sugars concentrations, compared to those obtained after applying hydrothermal pretreatments. The increase of temperature resulted in an increase in sugars during the enzymatic hydrolysis. The highest yields of glucose (about 59%) were observed after treatments at 190 °C for 60 min, independently of which type of pretreatment was applied and at 190 °C for 30 min using LFBD. Treatment, with LFBD at 190 °C and for 60 min, resulted in glucose and xylose concentrations of 7.36 g L-1 and 2.41 g L-1, respectively, after the subsequent hydrolysis for 48 h. However, the FTIR analysis indicated that the crystallinity index remained rather constant after treatment. Both FTIR and compositional analysis showed that the removal of hemicelluloses was the main effect of the pretreatment.
Collapse
Affiliation(s)
- Forough Momayez
- Department of Chemical Engineering, Isfahan University of Technology Isfahan 84156-83111 Iran
- Swedish Centre for Resource Recovery, University of Borås 501 90 Borås Sweden +46334354684
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology Isfahan 84156-83111 Iran
- Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Ilona Sárvári Horváth
- Swedish Centre for Resource Recovery, University of Borås 501 90 Borås Sweden +46334354684
| |
Collapse
|
43
|
Sunwoo I, Kwon JE, Jeong GT, Kim SK. Optimization of hyper-thermal acid hydrolysis and enzymatic saccharification of Ascophyllum nodosum for ethanol production with mannitol-adapted yeasts. Bioprocess Biosyst Eng 2019; 42:1255-1262. [PMID: 30997613 DOI: 10.1007/s00449-019-02123-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 04/04/2019] [Indexed: 10/27/2022]
Abstract
In this study, Ascophyllum nodosum was studied as a biomass for ethanol production. A. nodosum was degraded to monosaccharide by hyper-thermal (HT) acid hydrolysis and enzymatic saccharification and analyzed using response surface methodology (RSM) and the Michaelis-Menten equation. Maximum monosaccharide concentrations of 20.3 g/L glucose and 7.0 g/L mannitol were obtained from HT acid hydrolysis and enzymatic saccharification from 8%(w/v) of A. nodosum. Fermentation was conducted using Pichia stipitis and P. angophorae adapted to high mannitol concentrations. Neither non-adapted P. stipitis and P. angophorae nor adapted P. stipitis could ferment all mannitol in the A. nodosum hydrolysate. Adapted P. angophorae produced the highest ethanol concentration among various yeasts, with ethanol production reaching 13.6 g/L with an ethanol yield (YEtOH) of 0.50. Optimization of HT acid hydrolysis and enzymatic saccharification, in combination with the use of adapted yeast, could enhance overall A. nodosum ethanol fermentation yields.
Collapse
Affiliation(s)
- InYung Sunwoo
- Department of Biotechnology, Pukyong National University, Busan, 608-737, Korea
| | - Jeong Eun Kwon
- Department of Biotechnology, Pukyong National University, Busan, 608-737, Korea
| | - Gwi-Tack Jeong
- Department of Biotechnology, Pukyong National University, Busan, 608-737, Korea
| | - Sung-Koo Kim
- Department of Biotechnology, Pukyong National University, Busan, 608-737, Korea.
| |
Collapse
|
44
|
Passoth V, Sandgren M. Biofuel production from straw hydrolysates: current achievements and perspectives. Appl Microbiol Biotechnol 2019; 103:5105-5116. [PMID: 31081521 PMCID: PMC6570699 DOI: 10.1007/s00253-019-09863-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/18/2019] [Accepted: 04/19/2019] [Indexed: 12/15/2022]
Abstract
Straw is an agricultural residue of the production of e.g. cereals, rapeseed or sunflowers. It includes dried stalks, leaves, and empty ears and corncobs, which are separated from the grains during harvest. Straw is a promising lignocellulosic feedstock with a beneficial greenhouse gas balance for the production of biofuels and chemicals. Like all lignocellulosic materials, straw is recalcitrant and requires thermochemical and enzymatic pretreatment to enable access to the three major biopolymers of straw-the polysaccharides cellulose and hemicellulose and the polyaromatic compound lignin. Straw is used for commercial ethanol and biogas production. Considerable research has also been conducted to produce biobutanol, biodiesel and biochemicals from this raw material, but more research is required to establish them on a commercial scale. The major hindrance for launching industrial biofuel and chemicals' production from straw is the high cost necessitated by pretreatment of the material. Improvements of microbial strains, production and extraction technologies, as well as co-production of high-value compounds represent ways of establishing straw as feedstock for the production of biofuels, chemicals and food.
Collapse
Affiliation(s)
- Volkmar Passoth
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, Box 7015, SE-75007, Uppsala, Sweden.
| | - Mats Sandgren
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, Box 7015, SE-75007, Uppsala, Sweden
| |
Collapse
|
45
|
Islam MZ, Asad MA, Hossain MT, Paul SC, Sujan SA. Bioethanol Production from Banana Pseudostem by Using Separate and Cocultures of Cellulase Enzyme with Saccharomyces cerevisiae. ACTA ACUST UNITED AC 2019. [DOI: 10.3923/jest.2019.157.163] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
46
|
Zahan Z, Othman MZ. Effect of pre-treatment on sequential anaerobic co-digestion of chicken litter with agricultural and food wastes under semi-solid conditions and comparison with wet anaerobic digestion. BIORESOURCE TECHNOLOGY 2019; 281:286-295. [PMID: 30826514 DOI: 10.1016/j.biortech.2019.01.129] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/25/2019] [Accepted: 01/28/2019] [Indexed: 06/09/2023]
Abstract
Sequential co-digestion batch assays were conducted using feedstocks of chicken litter (CL), food waste (FW) and wheat straw (WS) mixed to a C/N ratio of 26.5 and 15% TS. Untreated mixture produced biogas of 321.6 ± 13.4 mLN/g VSadded which improved up to 50% when either CL or WS pre-treated substrates were fed. However, when both pre-treated CL and WS were fed, 80% and 88% increase in total biogas were found with associated VS removal of 49% and 55%, respectively, for alkali and sequential acid pre-treatment. Also, reactors received pre-treated substrates showed reduction in ammonia and digestate cellulose fraction with an increase in water soluble contents. Biogas production using sequential AD at 15% was almost 38% less than BMP biogas at 4%, however this was negated with the pre-treatment indicating that co-digestion at high TS of 15% is achievable. Further testing is required to confirm these results under semi-continuous conditions.
Collapse
Affiliation(s)
- Zubayeda Zahan
- School of Engineering, RMIT University, P.O. Box 2476, Melbourne, Victoria 3001, Australia
| | - Maazuza Z Othman
- School of Engineering, RMIT University, P.O. Box 2476, Melbourne, Victoria 3001, Australia.
| |
Collapse
|
47
|
Li M, Eskridge KM, Wilkins MR. Optimization of polyhydroxybutyrate production by experimental design of combined ternary mixture (glucose, xylose and arabinose) and process variables (sugar concentration, molar C:N ratio). Bioprocess Biosyst Eng 2019; 42:1495-1506. [DOI: 10.1007/s00449-019-02146-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 05/06/2019] [Indexed: 01/28/2023]
|
48
|
Comparison of Bioethanol Preparation from Triticale Straw Using the Ionic Liquid and Sulfate Methods. ENERGIES 2019. [DOI: 10.3390/en12061155] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Triticale straw constitutes a potential raw material for biofuel production found in Poland in considerable quantities. Thus far, production of bioethanol has been based on food raw materials such as cereal seeds, sugar beets or potatoes, and the biofuel production methods developed for these lignocellulose raw materials can threaten the environment and are inefficient. Therefore, this study aimed to compare of methods for pretreatment of triticale straw using 1-ethyl-3-methylimidazolium acetate and the sulfate method in the aspect of ethanol production intended for fuel. Based on the conducted experiments it has been determined that the use of 1-ethyl-3-methylimidazolium acetate for the pretreatment of triticale straw resulted in an increase of reducing sugars after enzymatic hydrolysis and ethyl alcohol after alcoholic fermentation. Furthermore, the study compared the efficiency of enzymatic hydrolysis of triticale straw without pretreatment, after processing with ionic liquid, recycled ionic liquid and using sulfate method, allowing a comparison of these methods. The more favorable method of lignocellulose material purification was the use of ionic liquid, due to the lower amount of toxic byproducts formed during the process, and the efficiency test results of bioethanol production using pretreatment with ionic liquid and sulfate method were similar. Ionic liquid recycling after pretreatment of rye straw using lyophilization allowed us to reuse this solvent to purify rye straw, yet the efficiency of this method remained at a low level. As a result of the conducted study it was determined that the use of ionic liquid-1-ethyl-3-methylimidazolium acetate enhanced the yield of bioethanol from triticale straw from 1.60 g/dm3 after processing without pre-treatment to 10.64 g/dm3 after pre-treatment.
Collapse
|
49
|
Zhou H, Tan L, Fu Y, Zhang H, Liu N, Qin M, Wang Z. Rapid Nondestructive Fractionation of Biomass (≤15 min) by using Flow-Through Recyclable Formic Acid toward Whole Valorization of Carbohydrate and Lignin. CHEMSUSCHEM 2019; 12:1213-1221. [PMID: 30673166 DOI: 10.1002/cssc.201802803] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 12/31/2018] [Indexed: 06/09/2023]
Abstract
Whole valorization of carbohydrate and lignin from biomass was achieved by rapid flow-through fractionation (RFF) within 15 min. Wheat straw was effectively deconstructed into its principle components without degradation by using easily recyclable aqueous formic acid (72 wt %) at 130 °C. The obtained cellulose-rich solid showed a nearly complete glucan recovery and 73.8 % glucose conversion after enzymatic hydrolysis. Xylan also reached full recovery with negligible furfural formation with a sum of 80 % of oligo/mono xylose in spent liquor and 20 % of xylan remaining in the solid. Up to 75.4 % lignin was dissolved in the spent liquor and further fractionated into water-insoluble (WIL) and water-soluble lignin (WSL) by dilution with water. WIL showed a non-condensed and well-preserved structure with 84.5 % β-O-4 remaining, which is believed to be beneficial for catalytic conversion into low-molecular-weight chemicals and fuels. The concentration of employed formic acid was below the formic acid/water azeotrope, and therefore the reaction medium could be restored through simple distillation. Together with the joint valorization of lignin and carbohydrates, the presented RFF is a promising process for sustainable biorefinery.
Collapse
Affiliation(s)
- Hao Zhou
- State Key Laboratory of Bio-based Materials and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Rd, Jinan, 250353, P.R. China
| | - Liping Tan
- State Key Laboratory of Bio-based Materials and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Rd, Jinan, 250353, P.R. China
| | - Yingjuan Fu
- State Key Laboratory of Bio-based Materials and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Rd, Jinan, 250353, P.R. China
| | - Huayong Zhang
- State Key Laboratory of Bio-based Materials and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Rd, Jinan, 250353, P.R. China
| | - Na Liu
- State Key Laboratory of Bio-based Materials and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Rd, Jinan, 250353, P.R. China
| | - Menghua Qin
- Laboratory of Organic Chemistry, Taishan University, 525 Dongyue Street, Taian, 271021, P.R. China
| | - Zhaojiang Wang
- State Key Laboratory of Bio-based Materials and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Rd, Jinan, 250353, P.R. China
| |
Collapse
|
50
|
Liu G, Bao J. Constructing super large scale cellulosic ethanol plant by decentralizing dry acid pretreatment technology into biomass collection depots. BIORESOURCE TECHNOLOGY 2019; 275:338-344. [PMID: 30597395 DOI: 10.1016/j.biortech.2018.12.061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 06/09/2023]
Abstract
Commercial cellulosic ethanol plants require mature and year-round biomass feedstock supply. Decentralizing pretreatment operation from central ethanol plant into local regional biomass collection depots provides an important solution to reach this goal. In this study, we introduced a newly established pretreatment technology, dry acid pretreatment, into the decentralized pretreatment operation by its advantages on zero wastewater generation and high volumetric density. Collection radius of crop residues feedstock is extended to nearly 100 km by decentralizing dry acid pretreatment, and biorefinery scale for cellulosic ethanol production is increased to the scale of modern petroleum refining factories in the densified agricultural regions in China and USA with the minimum ethanol selling price of below $2/gal. The technology overcomes the barrier of cellulosic ethanol cost increase with increasing biomass collection range, and provides a methodology for optimal supply method of large biorefinery plants in agricultural countries.
Collapse
Affiliation(s)
- Gang Liu
- 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.
| |
Collapse
|