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Ahn MR, Wang S, Kim J, You SM, Jung CD, Seong H, Choi JH, Park S, Choi IG, Kim H. Catalyst-recirculating system in steam explosion pretreatment for producing high-yield of xylooligosaccharides from oat husk. Carbohydr Polym 2024; 342:122411. [PMID: 39048203 DOI: 10.1016/j.carbpol.2024.122411] [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: 03/05/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 07/27/2024]
Abstract
We propose a closed-loop pretreatment process, wherein volatiles produced during steam explosion pretreatment were recovered and reintroduced as acid catalysts into the pretreatment system. The volatiles were separated through a drastic decompression process followed by a steam explosion process and recovered as a liquified catalyst (LFC) through a heat exchanger. The LFC effectively served as an acid catalyst for hemicellulose hydrolysis, significantly decreasing residence time from 90 min to 30 min to achieve 80 % conversion yield at 170 °C. Hydrolysates with high content of lower molecular weight oligomeric sugars were obtained using LFC, and were considered advantageous for application as prebiotics. These results are attributed to the complementary features of acetic acid and furfural contained within the LFC. Computational simulation using Aspen Plus was used to investigate the effects of recycling on LFC, and it demonstrated the feasibility of the catalyst-recirculating system. A validation study was conducted based on simulation results to predict the actual performance of the proposed pretreatment system. Based on these results, the recirculating system was predicted to improve the conversion yield and low-molecular weight oligomers yield by 1.5-fold and 1.6-fold, respectively.
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Affiliation(s)
- Myeong Rok Ahn
- Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Jung-gu, Ulsan 44429, Republic of Korea; Department of Agriculture, Forestry, and Bioresources, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Song Wang
- Department of Forest Biomaterials, North Carolina State University, Raleigh, NC 27695, USA
| | - Jonghwa Kim
- Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Jung-gu, Ulsan 44429, Republic of Korea
| | - Sang-Mook You
- Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Jung-gu, Ulsan 44429, Republic of Korea
| | - Chan-Duck Jung
- Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Jung-gu, Ulsan 44429, Republic of Korea
| | - Hyolin Seong
- Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Jung-gu, Ulsan 44429, Republic of Korea
| | - June-Ho Choi
- Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Jung-gu, Ulsan 44429, Republic of Korea
| | - Sunkyu Park
- Department of Forest Biomaterials, North Carolina State University, Raleigh, NC 27695, USA
| | - In-Gyu Choi
- Department of Agriculture, Forestry, and Bioresources, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Research Institute of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hoyong Kim
- Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Jung-gu, Ulsan 44429, Republic of Korea.
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Haroun B, El-Qelish M, Akobi C, Hafez H, Nasr F, Kim M, Nakhla G. Biohydrogen production from lignocellulosic hydrolysate: Unveiling the synergistic impact of substrate concentration and furfural inhibition. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-35186-6. [PMID: 39379652 DOI: 10.1007/s11356-024-35186-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 09/25/2024] [Indexed: 10/10/2024]
Abstract
Lignocellulosic biomass offers substantial potential as an ideal feedstock for dark fermentative hydrogen production due to its sustainability and cost-effectiveness. The current study examined the influence of furfural on fermentative hydrogen production using lignocellulosic hydrolysate in the presence of furfural. Synthetic lignocellulosic hydrolysate, consisting primarily of 76% xylose, 10% glucose, 9% arabinose, and a mixture of other sugars such as galactose and mannose (85% pentose sugars and 15% hexose sugars), was employed as the substrate. Various substrate concentrations ranging from 2 to 32 g/L were tested, along with furfural concentrations of 0, 1, and 2 g/L. The investigation aimed to assess the effects of initial substrate concentration, initial furfural concentration, furfural-to-biomass ratio (F/B), and furfural-to-substrate ratio (F/S) on biohydrogen production yields. The maximum specific substrate utilization rates at different substrate concentrations were effectively characterized using Haldane's substrate inhibition model. Among the tested concentrations, the 16 g/L emerged as the optimal substrate concentration. The initial furfural concentration was identified as the most significant parameter impacting biohydrogen production, with complete inhibition observed at a furfural concentration of 2 g/L. Higher F/S ratios at substrate concentrations ranging from 2 to 16 g/L resulted in reduced maximum specific hydrogen production rates (MSHPR) and hydrogen yields. Substrate inhibition was observed at 24 g/L and 32 g/L. Lactate was the predominant metabolite in all batches containing 2-g/L furfural, as well as in batches with 1-g/L furfural and substrate concentrations of 24 and 32 g/L. Furfural at a concentration of 1 g/L was not inhibitory in any of the batches. Overall, the mixed cultures in this study could efficiently produce hydrogen from lignocellulosic hydrolysates and degrade furfural, providing new insights into fermentative hydrogen-producing bacteria with furfural tolerance.
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Affiliation(s)
- Basem Haroun
- Chemical and Biochemical Engineering Department, University of Western Ontario, London, ON, N6A 5B9, Canada.
- Water Pollution Research Department, National Research Centre, El Buhouth St., Dokki, 12622, Cairo, Egypt.
| | - Mohamed El-Qelish
- Chemical and Biochemical Engineering Department, University of Western Ontario, London, ON, N6A 5B9, Canada
- Water Pollution Research Department, National Research Centre, El Buhouth St., Dokki, 12622, Cairo, Egypt
| | - Chinaza Akobi
- Chemical and Biochemical Engineering Department, University of Western Ontario, London, ON, N6A 5B9, Canada
| | - Hisham Hafez
- Civil and Environmental Engineering, University of Western Ontario, London, ON, N6A 5B9, Canada
- GreenField Ethanol Inc, Chatham, ON, N7M 5J4, Canada
| | - Fayza Nasr
- Water Pollution Research Department, National Research Centre, El Buhouth St., Dokki, 12622, Cairo, Egypt
| | - Mingu Kim
- Chemical and Biochemical Engineering Department, University of Western Ontario, London, ON, N6A 5B9, Canada
| | - George Nakhla
- Chemical and Biochemical Engineering Department, University of Western Ontario, London, ON, N6A 5B9, Canada
- Civil and Environmental Engineering, University of Western Ontario, London, ON, N6A 5B9, Canada
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Duan Y, Chen L, Ma L, Amin FR, Zhai Y, Chen G, Li D. From lignocellulosic biomass to single cell oil for sustainable biomanufacturing: Current advances and prospects. Biotechnol Adv 2024:108460. [PMID: 39383979 DOI: 10.1016/j.biotechadv.2024.108460] [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: 06/25/2024] [Revised: 09/12/2024] [Accepted: 09/29/2024] [Indexed: 10/11/2024]
Abstract
As global temperatures rise and arid climates intensify, the reserves of Earth's resources and the future development of humankind are under unprecedented pressure. Traditional methods of food production are increasingly inadequate in meeting the demands of human life while remaining environmentally sustainable and resource-efficient. Consequently, the sustainable supply of lipids is expected to become a pivotal area for future food development. Lignocellulose biomass (LB), as the most abundant and cost-effective renewable resource, has garnered significant attention from researchers worldwide. Thus, bioprocessing based on LB is appearing as a sustainable model for mitigating the depletion of energy reserves and reducing carbon footprints. Currently, the transformation of LB primarily focuses on producing biofuels, such as bioethanol, biobutanol, and biodiesel, to address the energy crisis. However, there are limited reports on the production of single-cell oil (SCO) from LB. This review, therefore, provides a comprehensive summary of the research progress in lignocellulosic pretreatment. Subsequently, it describes how the capability for lignocellulosic use can be conferred to cells through genetic engineering. Additionally, the current status of saccharification and fermentation of LB is outlined. The article also highlights the advances in synthetic biology aimed at driving the development of oil-producing microorganism (OPM), including genetic transformation, chassis modification, and metabolic pathway optimization. Finally, the limitations currently faced in SCO production from straw are discussed, and future directions for achieving high SCO yields from various perspectives are proposed. This review aims to provide a valuable reference for the industrial application of green SCO production.
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Affiliation(s)
- Yu Duan
- School of Marine Science and Technology, Harbin Institute of Technology (Weihai), Weihai 264209, PR China; School of Environment, Harbin Institute of Technology, Harbin 150090, PR China; Tianjin Key Laboratory for Industrial Biological System and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Limei Chen
- Tianjin Key Laboratory for Industrial Biological System and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Longxue Ma
- Tianjin Key Laboratory for Industrial Biological System and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Farrukh Raza Amin
- Tianjin Key Laboratory for Industrial Biological System and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Yida Zhai
- School of Marine Science and Technology, Harbin Institute of Technology (Weihai), Weihai 264209, PR China; School of Environment, Harbin Institute of Technology, Harbin 150090, PR China; Tianjin Key Laboratory for Industrial Biological System and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Guofu Chen
- School of Marine Science and Technology, Harbin Institute of Technology (Weihai), Weihai 264209, PR China.
| | - Demao Li
- Tianjin Key Laboratory for Industrial Biological System and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.
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Magwaza B, Amobonye A, Pillai S. Microbial β-glucosidases: Recent advances and applications. Biochimie 2024; 225:49-67. [PMID: 38734124 DOI: 10.1016/j.biochi.2024.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/05/2024] [Accepted: 05/06/2024] [Indexed: 05/13/2024]
Abstract
The global β-glucosidase market is currently estimated at ∼400 million USD, and it is expected to double in the next six years; a trend that is mainly ascribed to the demand for the enzyme for biofuel processing. Microbial β-glucosidase, particularly, has thus garnered significant attention due to its ease of production, catalytic efficiency, and versatility, which have all facilitated its biotechnological potential across different industries. Hence, there are continued efforts to screen, produce, purify, characterize and evaluate the industrial applicability of β-glucosidase from actinomycetes, bacteria, fungi, and yeasts. With this rising demand for β-glucosidase, various cost-effective and efficient approaches are being explored to discover, redesign, and enhance their production and functional properties. Thus, this present review provides an up-to-date overview of advancements in the utilization of microbial β-glucosidases as "Emerging Green Tools" in 21st-century industries. In this regard, focus was placed on the use of recombinant technology, protein engineering, and immobilization techniques targeted at improving the industrial applicability of the enzyme. Furthermore, insights were given into the recent progress made in conventional β-glucosidase production, their industrial applications, as well as the current commercial status-with a focus on the patents.
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Affiliation(s)
- Buka Magwaza
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P. O. Box 1334, Durban, 4000, South Africa.
| | - Ayodeji Amobonye
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P. O. Box 1334, Durban, 4000, South Africa.
| | - Santhosh Pillai
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P. O. Box 1334, Durban, 4000, South Africa.
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Qu Y, Miao X, Chen S, Qin N, Li J, Che Y, Luo L, Sun Y. Novel insights into the mechanism of dynamic changes in microstructure and physicochemical properties of corn straw pretreated by ball milling and feasibility analysis of anaerobic digestion. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 945:173943. [PMID: 38880129 DOI: 10.1016/j.scitotenv.2024.173943] [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: 03/27/2024] [Revised: 05/21/2024] [Accepted: 06/10/2024] [Indexed: 06/18/2024]
Abstract
In this study, the effects of Ball milling (BM) pretreatment (0-240 min) on the microstructure, physicochemical properties and subsequent methanogenesis performance of corn straw (CS) were explored, and the feasibility analysis was carried out. The results showed that BM pretreatment destroyed the dense structure of the CS, and the particle size was significantly reduced (D50: 13.85 μm), transforming it into a cell-scale granular form. The number of mesopores increased, the pore volume (PV) (0.032 cm3/g) and specific surface area (SSA) (4.738 m2/g) considerably increased, and the water-absorbent property was improved. The crystalline order of cellulose was disrupted and the crystallinity (CrI) (8.61 %) and crystal size (CrS) (3.37) were remarkably reduced. The cross-links between lignocelluloses were broken, and the relative content and functional groups did not alter obviously. The bulk density (BD), repose angle (RA) and slip angle (SA) dramatically increased. As a result, CS was more readily accessible, attached and utilized by microorganisms and enzymes, causing the hydrolysis and acidification of AD to be greatly facilitated. Compared with the untreated group, the cumulative methane production (CMP) increased by 35.83 %-101.97 %, and the lag phase time (λ) was shortened by 33.04 %-71.17 %. The results of redundancy analysis, Pearson analysis and Mantel test showed that BM pretreatment affects the process of AD by changing the physicochemical factors of CS. The normalization analysis showed that particle size (D90) and BD can be used as direct indicators to evaluate the performance of AD and predict the threshold of biodegradation of CS. Energy analysis and energy conversion assessment showed that BM is a green and efficient AD pretreatment strategy. This result provides a theoretical basis for the industrial application of BM pretreatment towards more energy-efficient and sustainable development.
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Affiliation(s)
- Youpei Qu
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China
| | - Xinying Miao
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China
| | - Shaopeng Chen
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China
| | - Nan Qin
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China
| | - Jiangnan Li
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China
| | - Yuchen Che
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China
| | - Lina Luo
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China.
| | - Yong Sun
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China.
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Hou J, Zhang Q, Tian F, Liu F, Jiang J, Qin J, Wang H, Wang J, Chang S, Hu X. Structure changes of lignin and their effects on enzymatic hydrolysis for bioethanol production: a focus on lignin modification. J Biotechnol 2024; 393:61-73. [PMID: 39067576 DOI: 10.1016/j.jbiotec.2024.07.012] [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: 04/24/2024] [Revised: 07/12/2024] [Accepted: 07/15/2024] [Indexed: 07/30/2024]
Abstract
Enzymatic hydrolysis contributes to obtaining fermentable sugars using pretreated lignocellulose materials for bioethanol generation. Unfortunately, the pretreatment of lignocellulose causes low substrate enzymatic hydrolysis, which is due to the structure changes of lignin to produce main phenolic by-products and non-productive cellulase adsorption. It is reported that modified lignin enhances the speed of enzymatic hydrolysis through single means to decrease the negative effects of fermentation inhibitors or non-productive cellulase adsorption. However, a suitable modified lignin should be selected to simultaneously reduce the fermentation inhibitors concentration and non-productive cellulase adsorption for saving resources and maximizing the enzymatic hydrolysis productivity. Meanwhile, the adsorption micro-mechanisms of modified lignin with fermentation inhibitors and cellulase remain elusive. In this review, different pretreatment effects toward lignin structure, and their impacts on subsequent enzymatic hydrolysis are analyzed. The main modification methods for lignin are presented. Density functional theory is used to screen suitable modification methods for the simultaneous reduction of fermentation inhibitors and non-productive cellulase adsorption. Lignin-fermentation inhibitors and lignin-cellulase interaction mechanisms are discussed using different advanced analysis techniques. This article addresses the gap in previous reviews concerning the application of modified lignin in the enhancement of bioethanol production. For the first time, based on existing studies, this work posits the hypothesis of applying theoretical simulations to screen efficient modified lignin-based adsorbents, in order to achieve a dual optimization of the detoxification and saccharification processes. We aim to improve the integrated lignocellulose transformation procedure for the effective generation of cleaner bioethanol.
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Affiliation(s)
- Jinju Hou
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Qiuzhuo Zhang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China.
| | - Fuxiang Tian
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Fuwen Liu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jingxian Jiang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jiaolong Qin
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Huifeng Wang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jing Wang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Shufang Chang
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Xiaojun Hu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China.
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Pei Z, Liu X, Chen J, Wang H, Li H. Research Progress on Lignin Depolymerization Strategies: A Review. Polymers (Basel) 2024; 16:2388. [PMID: 39274021 PMCID: PMC11397036 DOI: 10.3390/polym16172388] [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: 07/30/2024] [Revised: 08/20/2024] [Accepted: 08/21/2024] [Indexed: 09/16/2024] Open
Abstract
As the only natural source of aromatic biopolymers, lignin can be converted into value-added chemicals and biofuels, showing great potential in realizing the development of green chemistry. At present, lignin is predominantly used for combustion to generate energy, and the real value of lignin is difficult to maximize. Accordingly, the depolymerization of lignin is of great significance for its high-value utilization. This review discusses the latest progress in the field of lignin depolymerization, including catalytic conversion systems using various thermochemical, chemocatalytic, photocatalytic, electrocatalytic, and biological depolymerization methods, as well as the involved reaction mechanisms and obtained products of various protocols, focusing on green and efficient lignin depolymerization strategies. In addition, the challenges faced by lignin depolymerization are also expounded, putting forward possible directions of developing lignin depolymerization strategies in the future.
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Affiliation(s)
- Zhengfei Pei
- Key Laboratory of Surveillance and Management, Invasive Alien Species in Guizhou Education Department, College of Biology and Environmental Engineering, Guiyang University, Guiyang 550005, China
| | - Xiaofang Liu
- Key Laboratory of Surveillance and Management, Invasive Alien Species in Guizhou Education Department, College of Biology and Environmental Engineering, Guiyang University, Guiyang 550005, China
| | - Jiasheng Chen
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide & Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, China
| | - Huan Wang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide & Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, China
| | - Hu Li
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide & Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, China
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Hu N, Liu X, Wei S, Yao J, Wang W, Liu B, Tang T, Jiang J, Wang L. Current status and future prospects of pretreatment for tobacco stalk lignocellulose. Front Bioeng Biotechnol 2024; 12:1465419. [PMID: 39205854 PMCID: PMC11349660 DOI: 10.3389/fbioe.2024.1465419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Accepted: 07/30/2024] [Indexed: 09/04/2024] Open
Abstract
With the growing demand for sustainable development, tobacco stalks, as a resource-rich and low-cost renewable resource, hold the potential for producing high-value chemicals and materials within a circular economy. Due to the complex and unique structure of tobacco stalk biomass, traditional methods are ineffective in its utilization, making the pretreatment of tobacco stalk lignocellulose a crucial step in obtaining high-value products. This paper reviews recent advancements in various pretreatment technologies for tobacco stalk lignocellulosic biomass, including hydrothermal, steam explosion, acid, alkaline, organic solvent, ionic liquid, and deep eutectic solvent pretreatment. It emphasizes the impact and efficiency of these pretreatment methods on the conversion of tobacco stalk biomass and discusses the advantages and disadvantages of each technique. Finally, the paper forecasts future research directions in the pretreatment of tobacco stalk lignocellulose, providing new insights and methods for enhancing its efficient utilization.
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Affiliation(s)
- Nianwu Hu
- China Tobacco Hubei Industrial Co., Ltd., Wuhan, China
- Hubei Xinye Reconstituted Tobacco Development Co. Ltd., Wuhan, China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory, Wuhan, China
| | - Xiongbin Liu
- China Tobacco Hubei Industrial Co., Ltd., Wuhan, China
- Hubei Xinye Reconstituted Tobacco Development Co. Ltd., Wuhan, China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory, Wuhan, China
| | - Shuoguo Wei
- China Tobacco Hubei Industrial Co., Ltd., Wuhan, China
- Hubei Xinye Reconstituted Tobacco Development Co. Ltd., Wuhan, China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory, Wuhan, China
| | - Jianwu Yao
- China Tobacco Hubei Industrial Co., Ltd., Wuhan, China
- Hubei Xinye Reconstituted Tobacco Development Co. Ltd., Wuhan, China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory, Wuhan, China
| | - Wanxia Wang
- China Tobacco Hubei Industrial Co., Ltd., Wuhan, China
- Hubei Xinye Reconstituted Tobacco Development Co. Ltd., Wuhan, China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory, Wuhan, China
| | - Ben Liu
- China Tobacco Hubei Industrial Co., Ltd., Wuhan, China
- Hubei Xinye Reconstituted Tobacco Development Co. Ltd., Wuhan, China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory, Wuhan, China
| | - Tianming Tang
- China Tobacco Hubei Industrial Co., Ltd., Wuhan, China
- Hubei Xinye Reconstituted Tobacco Development Co. Ltd., Wuhan, China
- Applied Technology Research of Reconstituted Tobacco Hubei Province Key Laboratory, Wuhan, China
| | - Jungang Jiang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, China
| | - Lei Wang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, China
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Wang B, Li X, Wei L, Ma S, Wang J, Zhu W, Wang H. Engineering High-Performance Composite Cellulose Materials for Fast Hemostasis. ACS Biomater Sci Eng 2024; 10:5313-5326. [PMID: 39051461 DOI: 10.1021/acsbiomaterials.4c01045] [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] [Indexed: 07/27/2024]
Abstract
The development of an effective hemostatic agents is of vital importance for saving wounded individuals from uncontrolled hemorrhage, which is the main reason for preventable death after accidental injury. However, current high-performance hemostatic agents suffer from a cumbersome preparation procedures and poor biocompatibility. Here, we engineered a cellulosic-derived aerogel material by simply controlling the drying process of cellulose regeneration for fast hemostasis. Four different freeze-drying pretreatments were investigated. As compared with the other three, the cellulosic aerogel material prepared without freezing pretreatment exhibited the lowest crystallinity (21.3%) and the highest body fluid absorption capacity (20.3 times that of its own weight) due to its super hierarchical porous structure, which led to an excellent hemostatic performance in vitro blood coagulation (≈100 s). Moreover, the addition of gelatin and diatomite in the material could tune the functional groups and electrostatic properties of the aerogel and further enhance its hemostatic performance. Various characterizations, including X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), X-ray nanocomputed tomography (CT), scanning electron microscopy (SEM), and zeta potential analysis, were carried out to probe the structure-function relationship of the prepared material, and its mechanism of fast hemostasis was thereafter revealed. The results indicate that the developed aerogel is a cost-effective and feasibly scalable hemostatic material suitable for practical use in industry.
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Affiliation(s)
- Binshou Wang
- Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya 572025, China
| | - Xue Li
- Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Luyao Wei
- Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya 572025, China
| | - Shuaishuai Ma
- Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Jie Wang
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wanbin Zhu
- Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya 572025, China
| | - Hongliang Wang
- Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya 572025, China
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10
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Yao JW, Huang XY, Lin YH, Liu CG, Bai FW. Online monitoring lignocellulosic particles by focus beam reflectance measurement for efficient bioprocessing. BIORESOURCE TECHNOLOGY 2024; 406:131053. [PMID: 38944318 DOI: 10.1016/j.biortech.2024.131053] [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: 04/29/2024] [Revised: 06/26/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024]
Abstract
Lignocellulose presents a promising alternative to fossil fuels. Monitoring the mass and size changes of lignocellulosic particles without disrupting the process can assist in adjusting pretreatment and enzymatic hydrolysis, where conventional sieving methods fall short. A method utilizing focused beam reflectance measurement (FBRM) was developed to establish mathematical correlations between FBRM chord information (chord length and count) and particle characteristics (weight and size) quantified through sieving. Results indicate particle size exhibits a linear correlation with the square weighted median chord length (Lsqr) with R2 at 0.93. Further, real-time bulk particle mass can be predicted using Lsqr and chord count (R2 0.98). These correlations are applicable in range 53 μm to 358.5 μm. Real-time monitoring of enzymatic hydrolysis of corn stalks has demonstrated the practical applicability of FBRM. This study introduces a novel approach for online characterization of lignocellulosic particles, thereby enhancing lignocellulosic biorefineries.
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Affiliation(s)
- Ji-Wen Yao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiao-Yan Huang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yen-Han Lin
- Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, SK, S7N 5A9, Canada
| | - Chen-Guang Liu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Feng-Wu Bai
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
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11
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Chang S, Yun C, Yang B, Duan J, Chen T, Liu L, Li B, Guo S, Zhang S. Comprehensive reutilization of Glycyrrhiza uralensis residue by extrusion-biological pretreatment for coproduction of flavonoids, cellulase, and ethanol. BIORESOURCE TECHNOLOGY 2024; 406:131002. [PMID: 38889869 DOI: 10.1016/j.biortech.2024.131002] [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: 01/20/2024] [Revised: 02/22/2024] [Accepted: 06/15/2024] [Indexed: 06/20/2024]
Abstract
A continuous chemical-free green approach was investigated for the comprehensive reutilization of all components in herbal extraction residues (HERs), taking Glycyrrhiza uralensis residue (GUR) as an example. The GUR structural changes induced by mechanical extrusion which improve the specific surface area and enzyme accessibility of GUR. With 3 % pretreated GUR loading of high-tolerance Penicillium oxalicum G2. The reducing sugar yield of 11.45 g/L was achieved, along with an 81.06 % in situ enzymatic hydrolysis. Finally, 8.23 g/L bioethanol (0.40 g/g total sugar) was produced from GUR hydrolysates after 24 h fermentation of Pichia stipitis G32. The amount of functional medicinal ingredients extracted from GUR after hydrolysis (39.63 mg/g) was 37.69 % greater than that of un-pretreated GUR. In total, 1.49 g flavonoids, 294.36 U cellulase, and 14.13 g ethanol could be produced from 100 g GUR using this process, illustrating that this green and efficient process has the potential for industrial production.
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Affiliation(s)
- Siyuan Chang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China; Bio-based Platform Chemicals Catalysis Engineering Technology Research and Development Center of Jiangsu Province, College of Life and Health, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China
| | - Chenke Yun
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Bingqian Yang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Jinao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Tianyi Chen
- Bio-based Platform Chemicals Catalysis Engineering Technology Research and Development Center of Jiangsu Province, College of Life and Health, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China
| | - Lei Liu
- Bio-based Platform Chemicals Catalysis Engineering Technology Research and Development Center of Jiangsu Province, College of Life and Health, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China
| | - Bingfeng Li
- Bio-based Platform Chemicals Catalysis Engineering Technology Research and Development Center of Jiangsu Province, College of Life and Health, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China.
| | - Sheng Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Sen Zhang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China.
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12
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Yang X, Liu W, Han P, You Y, Lv J, Zhang X, Qin Z, Yin X. Antimicrobial ion-imprinted chitosan-derived hydrogel with quaternary ammonium and thermoresponsive components for UO 22+ adsorption. Int J Biol Macromol 2024; 275:133532. [PMID: 38945327 DOI: 10.1016/j.ijbiomac.2024.133532] [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: 04/10/2024] [Revised: 06/05/2024] [Accepted: 06/27/2024] [Indexed: 07/02/2024]
Abstract
Uranium recovery from wastewater or seawater is important for both pollution control and uranium supply. Due to the complexity of the water body, it requires that the adsorbent should not only be highly efficient for selective adsorption but also have good antimicrobial properties. In this study, an antimicrobial thermosensitive hydrogel (UITAC) for uranium adsorption was prepared by one-step ion-imprinted polymerization using chitosan as a substrate and allyl trimethylammonium chloride as the antimicrobial modifier. UITAC showed excellent antibacterial rate against Escherichia coli and Staphylococcus aureus, being 98.8 % and 89.1 %, respectively. Endothermic and exothermic peaks respectively showed up at 36.3-38.5 °C and 30.5-34.1 °C in the DSC curves. UITAC quickly achieved its adsorption equilibrium in 30.0 min at 50 °C, pH 5.0 in the 0.8 mg/mL UO22+ solution, with an adsorption capacity of 81.2 mg/g. The adsorption capacity could remain at 80 % after 5 cycles of repeated use. UITAC showed better adsorption selectivity to UO22+ than vanadium and other metal ions, with selectivity coefficients α(UO22+/Mn+) being 1.4-10.3. The pseudo-second-order kinetics and Langmuir adsorption model had a better fit for UO22+ adsorption by UITAC. The adsorption was a spontaneous process. The Gibbs Free Energy change, enthalpy change, and entropy change at 323.2 K were - 16.0 kJ/mol, 64.3 kJ/mol, and 248.4 J/mol·K, respectively. UITAC showed high potential in practical application environment.
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Affiliation(s)
- Xubing Yang
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, 58th Renmin Road, Haikou, Hainan, PR China
| | - Wei Liu
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, 58th Renmin Road, Haikou, Hainan, PR China
| | - Pengfei Han
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, 58th Renmin Road, Haikou, Hainan, PR China
| | - Yin You
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, 58th Renmin Road, Haikou, Hainan, PR China
| | - Ju Lv
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, 58th Renmin Road, Haikou, Hainan, PR China
| | - Xinyue Zhang
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, 58th Renmin Road, Haikou, Hainan, PR China.
| | - Ziyu Qin
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, 58th Renmin Road, Haikou, Hainan, PR China
| | - Xueqiong Yin
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, 58th Renmin Road, Haikou, Hainan, PR China.
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13
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Zhao X, Zong H, Lu X, Zhuge B. Toxicants improve glycerol production in the fermentation of undetoxified hydrolysate by Candida glycerinogenes. Biotechnol Lett 2024:10.1007/s10529-024-03503-1. [PMID: 39085486 DOI: 10.1007/s10529-024-03503-1] [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: 12/22/2023] [Revised: 04/30/2024] [Accepted: 05/28/2024] [Indexed: 08/02/2024]
Abstract
OBJECTIVES Toxicants inhibit microbial fermentation and reduce product titres. This work investigated the glycerol production characteristics of Candida glycerinogenes in highly toxic unwashed undetoxified hydrolysate and provided new ideas for high glycerol production from hydrolysates. RESULTS The unwashed hydrolysate contains higher concentrations of toxicants, such as furfural, acetic acid, phenols and NaCl than the washed alkali-treated bagasse hydrolysate. C. glycerinogenes fermented unwashed undetoxified hydrolysate yielded 36.1 g/L glycerol, 15.8% higher than the washed hydrolysate, suggesting that the toxicants stimulated glycerol synthesis. qRT-PCR analysis showed that toxicants of unwashed undetoxified hydrolysates greatly up-regulated the transcript levels of the genes GPD1, HXT4 and MSN4 et al. Overexpressing the above genes increased glycerol production by 27.9% to 46.1 g/L. And it was further increased by 8.8% to 50.1 g/L in a 5 L bioreactor. CONCLUSIONS This result proves that toxicants in lignocellulosic hydrolysates can increase the titre of microbial glycerol production.
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Affiliation(s)
- Xiaohong Zhao
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
- Lab of Industrial Microorganism & Research and Design Center for Polyols, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Hong Zong
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
- Lab of Industrial Microorganism & Research and Design Center for Polyols, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Xinyao Lu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
- Lab of Industrial Microorganism & Research and Design Center for Polyols, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Bin Zhuge
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China.
- Lab of Industrial Microorganism & Research and Design Center for Polyols, School of Biotechnology, Jiangnan University, Wuxi, 214122, China.
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14
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Saravanan P, Rajeswari S, Divyabaskaran, López-Maldonado EA, Rajeshkannan R, Viswanathan S. Recent developments on sustainable biobutanol production: a novel integrative review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:46858-46876. [PMID: 38981967 DOI: 10.1007/s11356-024-34230-9] [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: 08/04/2023] [Accepted: 06/30/2024] [Indexed: 07/11/2024]
Abstract
Renewable and sustainable biofuel production, such as biobutanol, is becoming increasingly popular as a substitute for non-renewable and depleted petrol fuel. Many researchers have studied how to produce butanol cheaply by considering appropriate feedstock materials and bioprocess technologies. The production of biobutanol through acetone-butanol-ethanol (ABE) is highly sought after around the world because of its sustainable supply and lack of competition with food. The purpose of this study is to present the current biobutanol production research and to analyse the biobutanol research conducted during 2006 to 2023. The keyword used in this study is "Biobutanol," and the relevant data was extracted from the Web of Science database (WoS). According to the results, institutions and scholars from the People's Republic of China, the USA, and India have the highest number of cited papers across a broad spectrum of topics including acetone-butanol-ethanol (ABE) fermentation, biobutanol, various pretreatment techniques, and pervaporation. The success of biobutanol fermentation from biomass depends on the ability of the fermentation operation to match the microbial behaviour along with the appropriate bioprocessing strategies to improve the entire process to be suitable for industrial scale. Based on the review data, we will look at the biobutanol technologies and appropriate strategies that have been developed to improve biobutanol production from renewable biomass.
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Affiliation(s)
- Panchamoorthy Saravanan
- Department of Petrochemical Technology, Anna University, UCE-BIT Campus, Tiruchirappalli, Tamil Nadu, India
| | - Shanmugam Rajeswari
- Department in the Library, Anna University, Tamil Nadu, UCE-BIT Campus, Tiruchirappalli, 620024, India
| | - Divyabaskaran
- Department of Biomaterials, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, 600077, India
- Department of Chemical and Biomolecular Engineering, Chonnam National University, Yeosu, 59626, South Korea
| | - Eduardo Alberto López-Maldonado
- Faculty of Chemical Sciences and Engineering, Autonomous University of Baja California, 22424, Tijuana, Baja California, Mexico.
| | - Rajan Rajeshkannan
- Department of Chemical Engineering, Annamalai University, Chidambaram, 608001, Tamil Nadu, India
| | - Saravanan Viswanathan
- Department of Chemical Engineering, Annamalai University, Chidambaram, 608001, Tamil Nadu, India
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15
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Makepa DC, Chihobo CH. Barriers to commercial deployment of biorefineries: A multi-faceted review of obstacles across the innovation chain. Heliyon 2024; 10:e32649. [PMID: 39183827 PMCID: PMC11341323 DOI: 10.1016/j.heliyon.2024.e32649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/04/2024] [Accepted: 06/06/2024] [Indexed: 08/27/2024] Open
Abstract
Realizing integrated biorefineries producing multiple fuels, chemicals and materials from sustainable biomass feedstocks holds promise for transitioning industries onto low-carbon trajectories. However, widespread commercial implementation remains elusive despite two decades of technological advancements. This review synthesizes current literature to provide a comprehensive analysis of key multi-dimensional barriers inhibiting the scale-up of biorefineries. The review discusses the technical challenges around biomass conversion processes. Economic viability concerns such as high capital costs and lack of market competitiveness are also assessed. The review also evaluates the regulatory and policy complexities that poses risks and uncertainties in the scaling up of biorefineries. Socio-political acceptance hurdles including community engagement and public perception are also reviewed. The interconnected nature of these challenges is emphasized and strategies are recommended to enable full potential realization, covering areas such as enhanced stakeholder collaboration, advanced process intensification, supportive policy frameworks, innovative financing models and strategic marketing initiatives. International pilots and cross-sectoral knowledge exchange are highlighted as priority enablers. In conclusion, this review synthesizes insights from extensive demonstration efforts to identify priorities and pathways for accelerating the global commercial transition towards sustainable biorefinery implementation. It aims to inform strategic decision-making and collaborative actions amongst stakeholders in research, industry and policy domains.
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Affiliation(s)
- Denzel Christopher Makepa
- Department of Fuels and Energy Engineering, Chinhoyi University of Technology, Private Bag, 7724, Chinhoyi, Zimbabwe
| | - Chido Hermes Chihobo
- Department of Fuels and Energy Engineering, Chinhoyi University of Technology, Private Bag, 7724, Chinhoyi, Zimbabwe
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16
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Freitas Paiva M, Sadula S, Vlachos DG, Wojcieszak R, Vanhove G, Bellot Noronha F. Advancing Lignocellulosic Biomass Fractionation through Molten Salt Hydrates: Catalyst-Enhanced Pretreatment for Sustainable Biorefineries. CHEMSUSCHEM 2024:e202400396. [PMID: 38872421 DOI: 10.1002/cssc.202400396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 06/15/2024]
Abstract
Developing a process that performs the lignocellulosic biomass fractionation under milder conditions simultaneously with the depolymerization and/or the upgrading of all fractions is fundamental for the economic viability of future lignin-first biorefineries. The molten salt hydrates (MSH) with homogeneous or heterogeneous catalysts are a potential alternative to biomass pretreatment that promotes cellulose's dissolution and its conversion to different platform molecules while keeping the lignin reactivity. This review investigates the fractionation of lignocellulosic biomass using MSH to produce chemicals and fuels. First, the MSH properties and applications are discussed. In particular, the use of MSH in cellulose dissolution and hydrolysis for producing high-value chemicals and fuels is presented. Then, the biomass treatment with MSH is discussed. Different strategies for preventing sugar degradation, such as biphasic media, adsorbents, and precipitation, are contrasted. The potential for valorizing isolated lignin from the pretreatment with MSH is debated. Finally, challenges and limitations in utilizing MSH for biomass valorization are discussed, and future developments are presented. Cellulose Avicel®PH-101 ZnCl2 ⋅ 4H2O, ZnBr2 ⋅ 4H2O, LiCl ⋅ 8H2O, LiBr ⋅ 4H2O H2SO4, (0.2 M); H3PW12O40 (0.067 M); H4SiW12O40 (0.05 M) T (145-175 °C); Time (30-120 min) Organic solvent (MIBK) LA (94 %) and HMF (3.4 %) Dissolution time: ZnBr2 ⋅ 4H2O<>2O<>2 ⋅ 4H2O<>2O; The highest conversion of pretreated cellulose and yield of glucose were obtained with ZnBr2 ⋅ 4H2O (88 % and 80 %, respectively).
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Affiliation(s)
- Mateus Freitas Paiva
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR, 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
- UMR 8522 - PC2 A - Physicochimie des Processus de Combustion et de l'Atmosphère, Univ. Lille, CNRS, F-59000, Lille, France
| | - Sunitha Sadula
- Catalysis Center for Energy Innovation and Department of Chemical and Biomolecular Engineering, University of Delaware, 150/221 Academy Street, Newark, Delaware 19716, United States
| | - Dionisios G Vlachos
- Catalysis Center for Energy Innovation and Department of Chemical and Biomolecular Engineering, University of Delaware, 150/221 Academy Street, Newark, Delaware 19716, United States
| | - Robert Wojcieszak
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR, 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
- L2CM UMR 7053, Université de Lorraine and CNRS, F-5400, Nancy, France
| | - Guillaume Vanhove
- UMR 8522 - PC2 A - Physicochimie des Processus de Combustion et de l'Atmosphère, Univ. Lille, CNRS, F-59000, Lille, France
| | - Fábio Bellot Noronha
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR, 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
- National Institute of Technology, Catalysis, Biocatalysis and Chemical Processes Division, Rio de Janeiro, RJ 20081-312, Brazil
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17
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Namli A, Akca MO, Perendeci NA, Yilmaz V, Ertit Tastan B. Effect of pretreated and anaerobically digested microalgae on the chemical and biochemical properties of soil and wheat grown on fluvisol. ENVIRONMENTAL TECHNOLOGY 2024; 45:2833-2846. [PMID: 36919910 DOI: 10.1080/09593330.2023.2192364] [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: 08/25/2022] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
In this study, the effects of the potential application of digestate as an agricultural fertiliser obtained from anaerobically digested microalgae treated by three pretreatment methods, namely alkaline hydrogen peroxide (AHP), high temperature and pressure (HTP), and hydrodynamic cavitation (HC) on some properties of soil, and wheat growth and yield were investigated. For this purpose, pretreated and anaerobically digested microalgae digestates alone or together with diammonium phosphate (DAP) as a chemical fertiliser were applied to soil for wheat growth. The highest dosage of AHP pretreated digestate combined with a half dose of DAP applied to soil was rich in nutrients as 0.25%N and 7.19 mg kg-1 compared to all groups. The properties of the soils were enhanced by applying the highest dosage (0.06 g kg-1) of microalgae digestate combined with a half dose of DAP. 0.02 g kg-1 dosage of HC pretreated digestate combined with a half dose of DAP also greatly improved nitrogen use efficiency indices by up to 104%. The soils' enzyme activities increased in wheat growth experiments by applying either raw or pretreated microalgae digestates. The soils' β-glycosidase, alkaline phosphatase, and urease enzyme activities increased to 1.38 mg pNP g-1 soil, 4.91 mg pNP g-1 soil, and 2.27 mg NH4-N 100 g-1 soil respectively by the application of highest dosage of HC pretreated digestate. The digestates did not have a toxic effect on wheat growth, it was determined that applied pretreatment processes did not cause significant changes in wheat plant height or wet and dry weight.
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Affiliation(s)
- Ayten Namli
- Faculty of Agriculture, Department of Soil Science and Plant Nutrition, Ankara University, Ankara, Turkey
| | - Muhittin Onur Akca
- Faculty of Agriculture, Department of Soil Science and Plant Nutrition, Ankara University, Ankara, Turkey
| | - Nuriye Altinay Perendeci
- Engineering Faculty, Department of Environmental Engineering, Akdeniz University, Antalya, Turkey
| | - Vedat Yilmaz
- Engineering Faculty, Department of Environmental Engineering, Artvin Çoruh University, Artvin, Turkey
| | - Burcu Ertit Tastan
- Health Services Vocational School, Gazi University, Ankara, Turkey
- Life Sciences Application and Research Center, Gazi University, Ankara, Turkey
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18
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Luo W, Tian H, Tan W, Tan Q. Effect of hydrothermal-acid pretreatment on methane yield and microbial community in anaerobic digestion of rice straw. BIORESOURCE TECHNOLOGY 2024; 402:130765. [PMID: 38692372 DOI: 10.1016/j.biortech.2024.130765] [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: 01/22/2024] [Revised: 04/04/2024] [Accepted: 04/28/2024] [Indexed: 05/03/2024]
Abstract
Hydrothermal pretreatment has been proposed to enhance straw methane yield during anaerobic digestion recently. However, the combined effect of hydrothermal and organic acid pretreatment (HTOAP) needs further investigation. This study identified optimal pretreatment at 120 °C with 3 % acetic acid for 24 h by orthogonal design method. The HTOAP increased the reducing sugar content by destroying the lignocellulosic structure. A 79 % increment of methane production after HTOAP was observed compared to the untreated group. Microbial analysis showed that HTOAP enriched the relative abundance of lignocellulose-degraders, such as W5053, Thermanaerovibrio, Caldicoprobacter, as well as the syntrophic acetate oxidizing bacteria Syntrophaceticus. Moreover, Methanobacterium conducted hydrogenotrophic methanogenesis dominantly. Furthermore, the potential function analysis showed that HTOAP stimulated the expression of key enzymes in the hydrogenotrophic pathway, including carbon-monoxide dehydrogenase (EC 1.2.7.4) and coenzyme F420 hydrogenase (EC 1.12.98.1). This investigation illustrated the potential of HTOAP of rice straw to facilitate methane production.
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Affiliation(s)
- Wei Luo
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Hailin Tian
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Wenxia Tan
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Qian Tan
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China.
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19
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Izydorczyk G, Skrzypczak D, Mironiuk M, Mikula K, Samoraj M, Gil F, Taf R, Moustakas K, Chojnacka K. Lignocellulosic biomass fertilizers: Production, characterization, and agri-applications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 923:171343. [PMID: 38438048 DOI: 10.1016/j.scitotenv.2024.171343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/29/2024] [Accepted: 02/27/2024] [Indexed: 03/06/2024]
Abstract
The growing focus on sustainable agriculture and optimal resource utilization has spurred investigations into lignocellulosic biomass as a potential source for producing environmentally friendly fertilizers. This paper reviews recent advancements in the production and application of innovative fertilizers derived from lignocellulose. It highlights potential in enhancing agricultural productivity and reducing environmental impacts such as carbon footprint and water pollution. The paper outlines various methods for conversion, highlighting the unique advantages of chemical, enzymatic, and microbiological processes, for converting lignocellulosic biomass into nutrient-rich fertilizers. The study compares the efficacy of lignocellulosic fertilizers to traditional fertilizers in promoting crop growth, enhancing soil health, and reducing nutrient losses. The results demonstrate the potential of lignocellulosic biomass-derived fertilizers in promoting resource efficiency and sustainable agriculture. While this research significantly contributes to the existing body of knowledge, further studies on long-term impacts and scalability are recommended for the development of innovative and sustainable agricultural practices.
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Affiliation(s)
- Grzegorz Izydorczyk
- Department of Advanced Material Technologies, Wroclaw University of Science and Technology, Wroclaw, Lower Silesia 50-370, Poland.
| | - Dawid Skrzypczak
- Department of Advanced Material Technologies, Wroclaw University of Science and Technology, Wroclaw, Lower Silesia 50-370, Poland
| | - Małgorzata Mironiuk
- Department of Advanced Material Technologies, Wroclaw University of Science and Technology, Wroclaw, Lower Silesia 50-370, Poland
| | - Katarzyna Mikula
- Department of Advanced Material Technologies, Wroclaw University of Science and Technology, Wroclaw, Lower Silesia 50-370, Poland
| | - Mateusz Samoraj
- Department of Advanced Material Technologies, Wroclaw University of Science and Technology, Wroclaw, Lower Silesia 50-370, Poland
| | - Filip Gil
- Department of Advanced Material Technologies, Wroclaw University of Science and Technology, Wroclaw, Lower Silesia 50-370, Poland
| | - Rafał Taf
- Department of Advanced Material Technologies, Wroclaw University of Science and Technology, Wroclaw, Lower Silesia 50-370, Poland
| | - Konstantinos Moustakas
- School of Chemical Engineering, National Technical University of Athens, 9 Iroon Polytechniou Str., Zographou Campus, GR-15780 Athens, Greece
| | - Katarzyna Chojnacka
- Department of Advanced Material Technologies, Wroclaw University of Science and Technology, Wroclaw, Lower Silesia 50-370, Poland
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20
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Zhao XQ, Liu CG, Bai FW. Making the biochemical conversion of lignocellulose more robust. Trends Biotechnol 2024; 42:418-430. [PMID: 37858385 DOI: 10.1016/j.tibtech.2023.09.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 10/21/2023]
Abstract
Lignocellulose is an alternative to fossil resources, but its biochemical conversion is not economically competitive. While decentralized processing can reduce logistical cost for this feedstock, sugar platforms need to be developed with energy-saving pretreatment technologies and cost-effective cellulases, and products must be selected correctly. Anaerobic fermentation with less energy consumption and lower contamination risk is preferred, particularly for producing biofuels. Great effort has been devoted to producing cellulosic ethanol, but CO2 released with large quantities during ethanol fermentation must be utilized in situ for credit. Unless titer and yield are improved substantially, butanol cannot be produced as an advanced biofuel. Microbial lipids produced through aerobic fermentation with low yield and intensive energy consumption are not affordable as feedstocks for biodiesel production.
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Affiliation(s)
- Xin-Qing Zhao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Science, and School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chen-Guang Liu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Science, and School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Feng-Wu Bai
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Science, and School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
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21
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Adnane I, Taoumi H, Elouahabi K, Lahrech K, Oulmekki A. Valorization of crop residues and animal wastes: Anaerobic co-digestion technology. Heliyon 2024; 10:e26440. [PMID: 38439870 PMCID: PMC10909651 DOI: 10.1016/j.heliyon.2024.e26440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 02/08/2024] [Accepted: 02/13/2024] [Indexed: 03/06/2024] Open
Abstract
To switch the over-reliance on fossil-based resources, curb environmental quality deterioration, and promote the use of renewable fuels, much attention has recently been directed toward the implementation of sustainable and environmentally benign 'waste-to-energy' technology exploiting a clean, inexhaustible, carbon-neutral, and renewable energy source, namely agricultural biomass. From this perspective, anaerobic co-digestion (AcoD) technology emerges as a potent and plausible approach to attain sustainable energy development, foster environmental sustainability, and, most importantly, circumvent the key challenges associated with mono-digestion. This review article provides a comprehensive overview of AcoD as a biochemical valorization pathway of crop residues and livestock manure for biogas production. Furthermore, this manuscript aims to assess the different biotic and abiotic parameters affecting co-digestion efficiency and present recent advancements in pretreatment technologies designed to enhance feedstock biodegradability and conversion rate. It can be concluded that the substantial quantities of crop residues and animal waste generated annually from agricultural practices represent valuable bioenergy resources that can contribute to meeting global targets for affordable renewable energy. Nevertheless, extensive and multidisciplinary research is needed to evolve the industrial-scale implementation of AcoD technology of livestock waste and crop residues, particularly when a pretreatment phase is included, and bridge the gap between small-scale studies and real-world applications.
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Affiliation(s)
- Imane Adnane
- Sidi Mohamed Ben Abdellah University (USMBA), IPI Laboratory, ENS, Fez, Morocco
| | - Hamza Taoumi
- Sidi Mohamed Ben Abdellah University (USMBA), IPI Laboratory, ENS, Fez, Morocco
| | - Karim Elouahabi
- Sidi Mohamed Ben Abdellah University (USMBA), IPI Laboratory, ENS, Fez, Morocco
| | - Khadija Lahrech
- Sidi Mohamed Ben Abdellah University (USMBA), ENSA, Fez, Morocco
| | - Abdellah Oulmekki
- Laboratory of Processes, Materials and Environment (LPME), Faculty of Science and Technology, Sidi Mohamed Ben Abdellah University, Fez, Morocco
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22
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Wang F, Dong H, Yu W, Gao Y, Mao G, An Y, Xie H, Song A, Zhang Z. Enhanced enzymatic sugar production from corn stover by combination of water extraction and glycerol-assisted instant catapult steam explosion. BIORESOUR BIOPROCESS 2024; 11:31. [PMID: 38647976 PMCID: PMC10992945 DOI: 10.1186/s40643-024-00739-7] [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: 11/29/2023] [Accepted: 01/31/2024] [Indexed: 04/25/2024] Open
Abstract
Glycerol-assisted instant catapult steam explosion (ICSE) of lignocellulose is an effective pretreatment method for enhancing sugar production compared to glycerol-free ICSE. In this study, glycerol-assisted ICSE of corn stover was studied in order to understand the reaction mechanisms and further optimize the process. Results showed that water extraction of corn stover prior to ICSE reduced pseudo-lignin formation. The combination of water extraction and glycerol-assisted ICSE led to the formation of lignin with a lower molecular weight (Mw) of 2851 g/mol than 3521 g/mole of that from the combination of water extraction and glycerol-free ICSE. 1H-13C NMR analysis revealed that glycerol likely reacted with lignin carboxylic OHs through esterification while etherification of aliphatic OHs was not observed in ICSE. These lignin analyses indicated that glycerol protected lignin from condensation/repolymerization during glycerol-assisted ICSE. Enzymatic hydrolysis results showed that without water extraction increasing glycerol usage from 0.2 kg/kg stover to 0.4 kg/kg stover improved glucan digestibility to 78% but further increase to 0.5 kg/kg stover reduced glucan digestibility. In addition, at the glycerol usage of 0.2-0.4 kg/kg stover, washing of pretreated stover for removal of glycerol and other biomass-derived compounds did not improve glucan digestibility compared to unwashed ones. Combination of water extraction and glycerol-assisted ICSE led to a high glucan digestibility of 89.7% and a total glucose yield of 25.5 g glucose/100 g stover, which were 30.1% and 7.5 g/100 g stover higher than those derived from glycerol-free ICSE of stover, respectively. Since glycerol is a low-cost carbon source, the resulting enzymatic hydrolysate that contained both glucose and glycerol may be directly used to produce bioproducts by microbial fermentation.
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Affiliation(s)
- Fengqin Wang
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, Ministry of Agriculture, College of Life Science, Henan Agricultural University, Zhengzhou, 450046, People's Republic of China
| | - Hongli Dong
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, Ministry of Agriculture, College of Life Science, Henan Agricultural University, Zhengzhou, 450046, People's Republic of China
| | - Weiwei Yu
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, Ministry of Agriculture, College of Life Science, Henan Agricultural University, Zhengzhou, 450046, People's Republic of China
| | - Yinling Gao
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, Ministry of Agriculture, College of Life Science, Henan Agricultural University, Zhengzhou, 450046, People's Republic of China
| | - Guotao Mao
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, Ministry of Agriculture, College of Life Science, Henan Agricultural University, Zhengzhou, 450046, People's Republic of China
| | - Yanxia An
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Hui Xie
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, Ministry of Agriculture, College of Life Science, Henan Agricultural University, Zhengzhou, 450046, People's Republic of China.
| | - Andong Song
- Key Laboratory of Enzyme Engineering of Agricultural Microbiology, Ministry of Agriculture, College of Life Science, Henan Agricultural University, Zhengzhou, 450046, People's Republic of China.
| | - Zhanying Zhang
- School of Mechanical, Medical and Process Engineering, Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, 4000, Australia
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23
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Duarah P, Haldar D, Singhania RR, Dong CD, Patel AK, Purkait MK. Sustainable management of tea wastes: resource recovery and conversion techniques. Crit Rev Biotechnol 2024; 44:255-274. [PMID: 36658718 DOI: 10.1080/07388551.2022.2157701] [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: 05/30/2022] [Revised: 09/30/2022] [Accepted: 11/26/2022] [Indexed: 01/21/2023]
Abstract
As the demand for tea (Camellia sinensis) has grown across the world, the amount of biomass waste that has been produced during the harvesting process has also increased. Tea consumption was estimated at about 6.3 million tonnes in 2020 and is anticipated to reach 7.4 million tonnes by 2025. The generation of tea waste (TW) after use has also increased concurrently with rising tea consumption. TW includes clipped stems, wasted tea leaves, and buds. Many TW-derived products have proven benefits in various applications, including energy generation, energy storage, wastewater treatment, and pharmaceuticals. TW is widely used in environmental and energy-related applications. Energy recovery from low- and medium-calorific value fuels may be accomplished in a highly efficient manner using pyrolysis, anaerobic digestion, and gasification. TW-made biochar and activated carbon are also promising adsorbents for use in environmental applications. Another area where TW shows promise is in the synthesis of phytochemicals. This review offers an overview of the conversion procedures for TW into value-added products. Further, the improvements in their applications for energy generation, energy storage, removal of different contaminants, and extraction of phytochemicals have been reviewed. A comprehensive assessment of the sustainable use of TWs as environmentally acceptable renewable resources is compiled in this review.
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Affiliation(s)
- Prangan Duarah
- Centre for the Environment, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Dibyajyoti Haldar
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India
| | - Reeta Rani Singhania
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
- Centre for Energy and Environmental Sustainability, Lucknow, India
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Anil Kumar Patel
- Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
- Centre for Energy and Environmental Sustainability, Lucknow, India
| | - Mihir Kumar Purkait
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam, India
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24
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Uruno Y, Lee J, Jeong H, Chung J. Numerical study on particle behavior in a Y-junction mixer for supercritical water hydrolysis. BIORESOURCE TECHNOLOGY 2024; 393:130072. [PMID: 38006985 DOI: 10.1016/j.biortech.2023.130072] [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: 08/09/2023] [Revised: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 11/27/2023]
Abstract
In the continuous-type supercritical water hydrolysis process, rapid mixing of supercritical and subcritical streams is important to maximize yield and minimize degradation from over-reaction. This work investigated the particle behavior in a Y-junction mixer using large eddy simulation coupled with a discrete phase model, aiming to optimize the supercritical hydrolysis process for biomass conversion. A series of numerical simulations analyzed the influence of the mixer's orientation, flow directions, and flow rates on effective mixing and backflow prevention. The results demonstrated that the most effective mixing occurred in a vertically oriented Y-junction mixer with an upward-directed supercritical water inlet, aligning the momentum direction of natural and forced convection effectively. Consequently, over 80% of particles reached the temperatures close to the mixing temperature of supercritical and subcritical water within the Y-junction mixing zone, indicating enhanced mixing effectiveness and potential for efficient hydrolysis. This configuration also minimized backflow.
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Affiliation(s)
- Yumi Uruno
- Department of Mechanical Engineering, Korea University, Seoul 02841, South Korea
| | - Juwon Lee
- Department of Mechanical Engineering, Korea University, Seoul 02841, South Korea
| | - Hanseob Jeong
- Forest Industrial Materials Division, Forest Products and Industry Department, National Institute of Forest Science, Seoul 02457, South Korea
| | - Jaewon Chung
- Department of Mechanical Engineering, Korea University, Seoul 02841, South Korea.
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25
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de Mello AFM, Vandenberghe LPDS, Machado CMB, Brehmer MS, de Oliveira PZ, Binod P, Sindhu R, Soccol CR. Polyhydroxyalkanoates production in biorefineries: A review on current status, challenges and opportunities. BIORESOURCE TECHNOLOGY 2024; 393:130078. [PMID: 37993072 DOI: 10.1016/j.biortech.2023.130078] [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: 10/20/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 11/24/2023]
Abstract
The need for a sustainable and circular bioeconomy model is imperative due to petroleum non-renewability, scarcity and environmental impacts. Biorefineries systems explore biomass to its maximum, being an important pillar for the development of circular bioeconomy. Polyhydroxyalkanoates (PHAs) can take advantage of biorefineries, as they can be produced using renewable feedstocks, and are potential substitutes for petrochemical plastics. The present work aims to evaluate the current status of the industrial development of PHAs production in biorefineries and PHAs contributions to the bioeconomy, along with future development points. Advancements are noticed when PHA production is coupled in wastewater treatment systems, when residues are used as substrate, and also when analytical methodologies are applied to evaluate the production process, such as the Life Cycle and Techno-Economic Analysis. For the commercial success of PHAs, it is established the need for dedicated investment and policies, in addition to proper collaboration of different society actors.
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Affiliation(s)
- Ariane Fátima Murawski de Mello
- Federal University of Paraná, Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, 81531-980, Curitiba, Paraná, Brazil
| | - Luciana Porto de Souza Vandenberghe
- Federal University of Paraná, Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, 81531-980, Curitiba, Paraná, Brazil.
| | - Clara Matte Borges Machado
- Federal University of Paraná, Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, 81531-980, Curitiba, Paraná, Brazil
| | - Mateus Seleme Brehmer
- Federal University of Paraná, Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, 81531-980, Curitiba, Paraná, Brazil
| | | | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India
| | - Raveendran Sindhu
- Department of Food Technology, TKM Institute of Technology, Kollam 691 505, Kerala, India
| | - Carlos Ricardo Soccol
- Federal University of Paraná, Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, 81531-980, Curitiba, Paraná, Brazil
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26
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Tian B, Mao J, Zu M, Wu R, Xiao C. Study of the Mechanism of Hydrolysis of Hemicellulose from Lignocellulose during Alkali Thermal Pretreatment by Density Functional Theory and Experiment. J Org Chem 2024. [PMID: 38191296 DOI: 10.1021/acs.joc.3c01668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
The covalent bond fracture of hemicellulose leads to hemicellulose hydrolysis during lignocellulosic alkali thermal pretreatment, which has not previously been reported. Density functional theory was used to study the mechanism of hydrolysis of the hemicellulose model compounds under alkali conditions. There are four reaction paths for xylose formation, among which the reaction path with the lowest energy barrier is that in which the nucleophile captures H30 to generate water. The deprotonated hydroxyl group attacks the carbon on the glycoside bond, resulting in the cleavage of the glycoside bond and the formation of a new carbon-oxygen covalent bond, with an energy barrier of 154.2 kJ/mol. The nucleophile further attacks the glycosidic bond to form a new xylose residue with an energy barrier of 111.9 kJ/mol. When the glycosidic bond breaks, the orbital interaction with the largest proportion causes the transfer of ∼0.511 electron from the glycosidic bond oxygen to the deprotonated hydroxy oxygen. In situ Fourier transform infrared spectroscopy is used for the identification of functional groups during the alkali thermal pretreatment. As the temperature increases, the feasibility of the reaction increases. This study lays a theoretical foundation for the development of the alkali thermal pretreatment of lignocellulose.
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Affiliation(s)
- Bobing Tian
- Department of Energy and Power Engineering, College of Electrical Engineering, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Jiahua Mao
- Department of Energy and Power Engineering, College of Electrical Engineering, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Mingfu Zu
- Department of Energy and Power Engineering, College of Electrical Engineering, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Ruilin Wu
- Department of Energy and Power Engineering, College of Electrical Engineering, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Chao Xiao
- Department of Energy and Power Engineering, College of Electrical Engineering, Guizhou University, Huaxi District, Guiyang 550025, China
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27
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Zhai Q, Yang S, Zhao S, Hu J, Lu Y, Zhang X. Fractionation of poplar wood with different acid hydrotropes: Lignin dissolution behavior and mechanism evaluation. Int J Biol Macromol 2023; 253:126696. [PMID: 37673170 DOI: 10.1016/j.ijbiomac.2023.126696] [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: 07/03/2023] [Revised: 08/29/2023] [Accepted: 09/02/2023] [Indexed: 09/08/2023]
Abstract
Acid hydrotropes was considered a green medium for efficient wood fractionation at mild conditions. This study reported a comparative study on the dissolution of lignin in different acid hydrotropes, including p-toluenesulfonic acid (p-TsOH), 4-hydroxybenzenesulfonic acid (4-HSA), 5-sulfosalicylic acid (5-SSA), and maleic acid (MA). Under identical treatment conditions (80 °C, 60 min, and 70 % acid concentration), the removal of wood lignin varied significantly among four acid hydrotropes, 4-HSA exhibited the highest removal rate at 88.0 %, followed by p-TsOH at 81.2 %, 5-SSA at 51.1 %, and MA at 26.2 %. The molecular mechanism of the lignin dissolution was analyzed by quantum chemistry (QC) calculation and molecular dynamics (MD) simulation. The higher absorb free energy (E(absorb)) of the 4-HSA and veratrylglycerol-β-guaiacyl ether (VG) complex (E(absorb) = 17.97 kcal/mol), and the p-TsOH and VG complex (E(absorb) = 17.16 kcal/mol) contributed to a higher efficiency of lignin dissolution. Under the same level of lignin removal (~ 60 %), the four acid hydrotropes showed variations in the β-O-4 content of the extracted lignin: 4-HSA (3.1 %) < 5-SSA (10.4 %) < p-TsOH (15.9 %) < MA (63.7 %). The acidity and critical aggregation concentrations of acid hydrotropes were found to influence the content of β-O-4 bonds in the extracted lignin.
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Affiliation(s)
- Qiaolong Zhai
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China.
| | - Shaoqi Yang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China
| | - Shuheng Zhao
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China
| | - Jianjun Hu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China
| | - Yanju Lu
- College of Chemical Engineering, Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, International Innovation Highland of Forest Products Chemistry and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaolei Zhang
- Department of Chemical and Process Engineering, University of Strathclyde, Glasgow G1 1XJ, UK
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28
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Chen W, Zeng Y, Liu H, Sun D, Liu X, Xu H, Wu H, Qiu B, Dang Y. Granular activated carbon enhances volatile fatty acid production in the anaerobic fermentation of garden wastes. Front Bioeng Biotechnol 2023; 11:1330293. [PMID: 38146344 PMCID: PMC10749581 DOI: 10.3389/fbioe.2023.1330293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 11/20/2023] [Indexed: 12/27/2023] Open
Abstract
Garden waste, one type of lignocellulosic biomass, holds significant potential for the production of volatile fatty acids (VFAs) through anaerobic fermentation. However, the hydrolysis efficiency of garden waste is limited by the inherent recalcitrance, which further influences VFA production. Granular activated carbon (GAC) could promote hydrolysis and acidogenesis efficiency during anaerobic fermentation. This study developed a strategy to use GAC to enhance the anaerobic fermentation of garden waste without any complex pretreatments and extra enzymes. The results showed that GAC addition could improve VFA production, especially acetate, and reach the maximum total VFA yield of 191.55 mg/g VSadded, which increased by 27.35% compared to the control group. The highest VFA/sCOD value of 70.01% was attained in the GAC-amended group, whereas the control group only reached 49.35%, indicating a better hydrolysis and acidogenesis capacity attributed to the addition of GAC. Microbial community results revealed that GAC addition promoted the enrichment of Caproiciproducens and Clostridium, which are crucial for anaerobic VFA production. In addition, only the GAC-amended group showed the presence of Sphaerochaeta and Oscillibacter genera, which are associated with electron transfer processes. Metagenomics analysis indicated that GAC addition improved the abundance of glycoside hydrolases (GHs) and key functional enzymes related to hydrolysis and acidogenesis. Furthermore, the assessment of major genera influencing functional genes in both groups indicated that Sphaerochaeta, Clostridium, and Caproicibacter were the primary contributors to upregulated genes. These findings underscored the significance of employing GAC to enhance the anaerobic fermentation of garden waste, offering a promising approach for sustainable biomass conversion and VFA production.
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Affiliation(s)
- Wenwen Chen
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China
| | - Yiwei Zeng
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China
| | - Huanying Liu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China
| | - Dezhi Sun
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China
| | - Xinying Liu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China
| | - Haiyu Xu
- Qinglin Chuangneng (Shanghai) Technology Co., Ltd., Shanghai, China
| | - Hongbin Wu
- Qinglin Chuangneng (Shanghai) Technology Co., Ltd., Shanghai, China
| | - Bin Qiu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China
| | - Yan Dang
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China
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29
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Ferreira VC, Sganzerla WG, Barroso TLCT, Castro LEN, Colpini LMS, Forster-Carneiro T. Sustainable valorization of pitaya (Hylocereus spp.) peel in a semi-continuous high-pressure hydrothermal process to recover value-added products. Food Res Int 2023; 173:113332. [PMID: 37803643 DOI: 10.1016/j.foodres.2023.113332] [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: 04/28/2023] [Revised: 07/25/2023] [Accepted: 07/27/2023] [Indexed: 10/08/2023]
Abstract
This study evaluated the use of a semi-continuous high-pressure hydrothermal process for the recovery of value-added products from pitaya peel. The process was carried out at 15 MPa, a water flow rate of 2 mL/min, a solvent-to-feed ratio of 60 g water/g pitaya peel, and temperatures ranging from 40 to 210 °C. The results show that extraction temperatures (between 40 and 80 °C) promoted the recovery of betacyanin (1.52 mg/g), malic acid (25.6 mg/g), and citric acid (25.98 mg/g). The major phenolic compounds obtained were p-coumaric acid (144.63 ± 0.42 µg/g), protocatechuic acid (91.43 ± 0.32 µg/g), and piperonylic acid (74.2 ± 0.31 µg/g). The hydrolysis temperatures (between 150 and 210 °C) could produce sugars (18.09 mg/g). However, the hydrolysis process at temperatures above 180 °C generated Maillard reaction products, which increased the total phenolic compounds and antioxidant activity of the hydrolysates. Finally, the use of semi-continuous high-pressure hydrothermal process can be a sustainable and promising approach for the recovery of value-added compounds from pitaya peel, advocating a circular economy approach in the agri-food industry.
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Affiliation(s)
- Vanessa Cosme Ferreira
- School of Food Engineering (FEA), University of Campinas (UNICAMP), Campinas, SP, Brazil
| | | | | | | | | | - Tânia Forster-Carneiro
- School of Food Engineering (FEA), University of Campinas (UNICAMP), Campinas, SP, Brazil.
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30
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Wongleang S, Premjet D, Premjet S. Physicochemical Pretreatment of Vietnamosasa pusilla for Bioethanol and Xylitol Production. Polymers (Basel) 2023; 15:3990. [PMID: 37836039 PMCID: PMC10575274 DOI: 10.3390/polym15193990] [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: 08/31/2023] [Revised: 09/28/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
The consumption of fossil fuels has resulted in severe environmental consequences, including greenhouse gas emissions and climate change. Therefore, transitioning to alternative energy sources, such as cellulosic ethanol, is a promising strategy for reducing environmental impacts and promoting sustainable low-carbon energy. Vietnamosasa pusilla, an invasive weed, has been recognized as a high potential feedstock for sugar-based biorefineries due to its high total carbohydrate content, including glucan (48.1 ± 0.3%) and xylan (19.2 ± 0.4%). This study aimed to examine the impact of NaOH pretreatment-assisted autoclaving on V. pusilla feedstock. The V. pusilla enzymatic hydrolysate was used as a substrate for bioethanol and xylitol synthesis. After treating the feedstock with varying concentrations of NaOH at different temperatures, the glucose and xylose recovery yields were substantially higher than those of the untreated material. The hydrolysate generated by enzymatic hydrolysis was fermented into bioethanol using Saccharomyces cerevisiae TISTR 5339. The liquid byproduct of ethanol production was utilized by Candida tropicalis TISTR 5171 to generate xylitol. The results of this study indicate that the six- and five-carbon sugars of V. pusilla biomass have great potential for the production of two value-added products (bioethanol and xylitol).
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Affiliation(s)
- Suwanan Wongleang
- Department of Biology, Faculty of Science, Naresuan University, Muang, Phitsanulok 65000, Thailand;
| | - Duangporn Premjet
- Department of Agricultural Science, Faculty of Agriculture, Natural Resources and Environment, Naresuan University, Muang, Phitsanulok 65000, Thailand
| | - Siripong Premjet
- Department of Biology, Faculty of Science, Naresuan University, Muang, Phitsanulok 65000, Thailand;
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Llamas M, Greses S, Magdalena JA, González-Fernández C, Tomás-Pejó E. Microbial co-cultures for biochemicals production from lignocellulosic biomass: A review. BIORESOURCE TECHNOLOGY 2023; 386:129499. [PMID: 37460020 DOI: 10.1016/j.biortech.2023.129499] [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: 05/30/2023] [Revised: 07/12/2023] [Accepted: 07/15/2023] [Indexed: 07/31/2023]
Abstract
Global reliance on fossil oil should shift to cleaner alternatives to get a decarbonized society. One option to achieve this ambitious goal is the use of biochemicals produced from lignocellulosic biomass (LCB). The inherent low biodegradability of LCB and the inhibitory compounds that might be released during pretreatment are two main challenges for LCB valorization. At microbiological level, constraints are mostly linked to the need for axenic cultures and the preference for certain carbon sources (i.e., glucose). To cope with these issues, this review focuses on efficient LCB conversion via the sugar platform as well as an innovative carboxylate platform taking advantage of the co-cultivation of microorganisms. This review discusses novel trends in the use of microbial communities and co-cultures aiming at different bioproducts co-generation in single reactors as well as in sequential bioprocess combination. The outlook and further perspectives of these alternatives have been outlined for future successful development.
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Affiliation(s)
- Mercedes Llamas
- Biotechnological Processes Unit, IMDEA Energy, Madrid, Spain
| | - Silvia Greses
- Biotechnological Processes Unit, IMDEA Energy, Madrid, Spain
| | - Jose Antonio Magdalena
- LBE, Univ Montpellier, INRAE, 102 avenue des Étangs, F-11100 Narbonne, France; Vicerrectorado de Investigación y Transferencia de la Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Cristina González-Fernández
- Biotechnological Processes Unit, IMDEA Energy, Madrid, Spain; Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, s/n, Valladolid 47011, Spain; Institute of Sustainable Processes, Dr. Mergelina, s/n, Valladolid 47011, Spain
| | - Elia Tomás-Pejó
- Biotechnological Processes Unit, IMDEA Energy, Madrid, Spain.
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Yang J, Lan X, Zhou T, Zhang Q, Zhang Z, Li P, Qu B. Effects of cold isostatic press pretreatment of rice straw on microstructure and efficiency of anaerobic digestion for methane production. BIORESOURCE TECHNOLOGY 2023; 386:129488. [PMID: 37454956 DOI: 10.1016/j.biortech.2023.129488] [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: 05/20/2023] [Revised: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
In this study, rice straw was pretreated using by cold isostatic pressure to disrupt its microstructure and improve the performance of anaerobic digestion, and the optimal process parameters were optimized using the response surface methodology. The results showed that cold isostatic pressure pretreatment under optimal conditions (pressure of 400 MPa and holding time of 9 min) was effective in disrupting the structure of rice straw and improving its biodegradability. The cumulative methane production of the cold isostatic pressure pretreatment group increased by 76% compared to the untreated group. In addition, microbial community analysis showed that the relative abundance of Firmicutes, Halobacterota, DMER64 and Methanosaeta was higher in groups pretreated with cold isostatic pressure than in untreated groups. This study demonstrated the potential of pretreatment of rice straw with cold isostatic pressure to increase methane production during anaerobic digestion.
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Affiliation(s)
- Jiancheng Yang
- College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Xuan Lan
- College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Tiantian Zhou
- College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Quanguo Zhang
- Institute of Agricultural Engineering, Huanghe Science and Technology University, Zhengzhou 450006, China; Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Zhiyun Zhang
- College of Animal Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Pengfei Li
- Heilongjiang Academy of Black Soil Conservation and Utilization, Key Laboratory Combining Farming & Animal Husbandry, Key Laboratory of Straw Energy Utilization, Harbin 150086, China
| | - Bin Qu
- College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China.
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Chenebault C, Percheron B. Development of a simple and versatile process for commercial and municipal lignocellulosic waste conversion into fermentable sugars. BIORESOURCE TECHNOLOGY 2023; 386:129497. [PMID: 37473788 DOI: 10.1016/j.biortech.2023.129497] [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: 05/31/2023] [Revised: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 07/22/2023]
Abstract
Lignocellulosic wastes are valuable feedstock in biorefinery thanks to their high sugars content and low level of fibers intricacy. However, their massification is often a limiting parameter in the development of industrial projects. Hence, this study aims to develop an efficient process enabling the conversion of several waste streams within the same process line. Several pretreatment and enzymatic hydrolysis parameters were firstly evaluated with Old Corrugated Cardboards (OCC) as a model substrate. A chemical free pretreatment followed by an enzymatic hydrolysis (Cellic Ctec 3 enzymatic cocktail at 0.06 g of cocktail per g of Total Sugars (TS)) efficiently depolymerized OCC into monomeric sugars (0.50 g/gTS) consequently fermented into ethanol (0.24 g/gTS). Then, the suitability of this process was validated for sugars production from Pulp and Paper (P&P) sludge (0.48 g/gTS), sieved toilets papers (0.40 g/gTS), the Organic fraction of municipal solid waste (0.37 g/gTS) and Waste Wood B (0.08 g/gTS).
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Zabed HM, Akter S, Dar MA, Tuly JA, Kumar Aswathi M, Yun J, Li J, Qi X. Enhanced fermentable sugar production in lignocellulosic biorefinery by exploring a novel corn stover and configuring high-solid pretreatment conditions. BIORESOURCE TECHNOLOGY 2023; 386:129498. [PMID: 37463614 DOI: 10.1016/j.biortech.2023.129498] [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: 05/31/2023] [Revised: 07/13/2023] [Accepted: 07/15/2023] [Indexed: 07/20/2023]
Abstract
This study aimed to produce enhanced fermentable sugars from a novel stover system through the bioprocessing of its soluble sugars and insoluble carbohydrates. The pretreatment conditions were optimized for this high sugar-containing stover (HSS) to control inhibitor formation and obtain enhanced fermentable sugar concentrations. The optimum temperature, acid loading, and reaction time for the pretreatment were 155 °C, 0.5%, and 30 min, respectively, providing up to 97.15% sugar yield and 76.51 g/L total sugars at 10% solid-load. Sugar concentration further increased to 126.9 g/L at 20% solid-load, generating 3.89 g/L acetate, 0.92 g/L 5-hydroxymethyl furfural, 0.82 g/L furfural, and 3.75 g/L total phenolics as inhibitors. To determine the effects of soluble sugars in HSS on fermentable sugar yield and inhibitor formation, sugar-removed HSS was further studied under the optimum conditions. Although prior removal of sugars exhibited a reduction in inhibitor generation, it also decreased total fermentable sugar production to 115.45 g/L.
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Affiliation(s)
- Hossain M Zabed
- School of Life Sciences, Guangzhou University, Guangzhou 510006, Guangdong Province, China; School of Food & Biological Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, Jiangsu, China
| | - Suely Akter
- School of Food & Biological Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, Jiangsu, China
| | - Mudasir A Dar
- School of the Environment and Safety Engineering, Biofuels Institute, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Jamila A Tuly
- School of Food & Biological Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, Jiangsu, China
| | - Mukesh Kumar Aswathi
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Junhua Yun
- School of Food & Biological Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, Jiangsu, China
| | - Jia Li
- School of Life Sciences, Guangzhou University, Guangzhou 510006, Guangdong Province, China
| | - Xianghui Qi
- School of Life Sciences, Guangzhou University, Guangzhou 510006, Guangdong Province, China; School of Food & Biological Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, Jiangsu, China.
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Liu X, Ding S, Gao F, Wang Y, Taherzadeh MJ, Wang Y, Qin X, Wang X, Luo H, Yao B, Huang H, Tu T. Exploring the cellulolytic and hemicellulolytic activities of manganese peroxidase for lignocellulose deconstruction. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:139. [PMID: 37726830 PMCID: PMC10507950 DOI: 10.1186/s13068-023-02386-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/24/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND A cost-effective pretreatment and saccharification process is a necessary prerequisite for utilizing lignocellulosic biomass (LCB) in biofuel and biomaterials production. Utilizing a multifunctional enzyme with both pretreatment and saccharification functions in a single step for simultaneous biological pretreatment and saccharification process (SPS) will be a green method of low cost and high efficiency. Manganese peroxidase (MnP, EC 1.11.1.13), a well-known lignin-degrading peroxidase, is generally preferred for the biological pretreatment of biomass. However, exploring the role and performance of MnP in LCB conversion will promote the application of MnP for lignocellulose-based biorefineries. RESULTS In this study, we explored the ability of an MnP from Moniliophthora roreri, MrMnP, in LCB degradation. With Mn2+ and H2O2, MrMnP decomposed 5.0 g/L carboxymethyl cellulose to 0.14 mM of reducing sugar with a conversion yield of 5.0 mg/g, including 40 μM cellobiose, 70 μM cellotriose, 20 μM cellotetraose, and 10 μM cellohexaose, and degraded 1.0 g/L mannohexaose to 0.33 μM mannose, 4.08 μM mannotriose, and 4.35 μM mannopentaose. Meanwhile, MrMnP decomposed 5.0 g/L lichenan to 0.85 mM of reducing sugar with a conversion yield of 30.6 mg/g, including 10 μM cellotriose, 20 μM cellotetraose, and 80 μM cellohexose independently of Mn2+ and H2O2. Moreover, the versatility of MrMnP in LCB deconstruction was further verified by decomposing locust bean gum and wheat bran into reducing sugars with a conversion yield of 54.4 mg/g and 29.5 mg/g, respectively, including oligosaccharides such as di- and tri-saccharides. The catalytic mechanism underlying MrMnP degraded lignocellulose was proposed as that with H2O2, MrMnP oxidizes Mn2+ to Mn3+. Subsequently, it forms a complex with malonate, facilitating the degradation of CMC and mannohexaose into reducing sugars. Without H2O2, MrMnP directly oxidizes malonate to hydroperoxyl acetic acid radical to form compound I, which then attacks the glucosidic bond of lichenan. CONCLUSION This study identified a new function of MrMnP in the hydrolysis of cellulose and hemicellulose, suggesting that MrMnP exhibits its versatility in the pretreatment and saccharification of LCB. The results will lead to an in-depth understanding of biocatalytic saccharification and contribute to forming new enzymatic systems for using lignocellulose resources to produce sustainable and economically viable products and the long-term development of biorefinery, thereby increasing the productivity of LCB as a green resource.
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Affiliation(s)
- Xiaoqing Liu
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Sunjia Ding
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Fang Gao
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Yaru Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | | | - Yuan Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xing Qin
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xiaolu Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Huiying Luo
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Bin Yao
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Huoqing Huang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Tao Tu
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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Fernández-Bautista M, Martínez-Gómez S, Rivas S, Alonso JL, Parajó JC. Advances on Cellulose Manufacture in Biphasic Reaction Media. Int J Mol Sci 2023; 24:12404. [PMID: 37569779 PMCID: PMC10418468 DOI: 10.3390/ijms241512404] [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: 07/14/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Cellulose is produced industrially by the kraft and sulfite processes. The evolution of these technologies in biorefineries is driven by the need to obtain greater added value through the efficient use of raw materials and energy. In this field, organosolv technologies (and within them, those using liquid phases made up of water and one partly miscible organic solvent, known as "biphasic fractionation" in reference to the number of liquid phases) represent an alternative that is receiving increasing interest. This study considers basic aspects of the composition of lignocellulosic materials, describes the fundamentals of industrial cellulose pulp production processes, introduces the organosolv methods, and comprehensively reviews published results on organosolv fractionation based on the use of media containing water and an immiscible solvent (1-butanol, 1-pentanol or 2-methyltetrahydrofuran). Special attention is devoted to aspects related to cellulose recovery and fractionation selectivity, measured through the amount and composition of the treated solids.
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Affiliation(s)
- Marcos Fernández-Bautista
- Faculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, Spain; (M.F.-B.); (S.M.-G.); (S.R.); (J.L.A.)
- CINBIO, University of Vigo (Campus Lagoas-Marcosende), 36310 Vigo, Spain
| | - Sergio Martínez-Gómez
- Faculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, Spain; (M.F.-B.); (S.M.-G.); (S.R.); (J.L.A.)
- CINBIO, University of Vigo (Campus Lagoas-Marcosende), 36310 Vigo, Spain
| | - Sandra Rivas
- Faculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, Spain; (M.F.-B.); (S.M.-G.); (S.R.); (J.L.A.)
- CINBIO, University of Vigo (Campus Lagoas-Marcosende), 36310 Vigo, Spain
| | - José Luis Alonso
- Faculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, Spain; (M.F.-B.); (S.M.-G.); (S.R.); (J.L.A.)
- CINBIO, University of Vigo (Campus Lagoas-Marcosende), 36310 Vigo, Spain
| | - Juan Carlos Parajó
- Faculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, Spain; (M.F.-B.); (S.M.-G.); (S.R.); (J.L.A.)
- CINBIO, University of Vigo (Campus Lagoas-Marcosende), 36310 Vigo, Spain
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Wu C, Ma C, Li Q, Chai H, He YC. Efficient production of hydroxymethyl-2-furfurylamine by chemoenzymatic cascade catalysis of bread waste in a sustainable approach. BIORESOURCE TECHNOLOGY 2023:129454. [PMID: 37406829 DOI: 10.1016/j.biortech.2023.129454] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 06/30/2023] [Accepted: 07/01/2023] [Indexed: 07/07/2023]
Abstract
In this study, efficient and sustainable conversion of waste bread (WB) to 5-hydroxymethyl-2-furoamine (HMFA) was achieved in a cascade reaction in betaine:malonic acid (B:MA) - water. 5-HMF (30.3 wt% yield) was synthesized from WB (40.0 g/L) in B:MA - water (B:MA, 18 wt%) in 45 min at 190 °C. By using the newly created recombinant E. coli HNILGD-AlaDH cells expressing L-alanine dehydrogenase (AlaDH) and ω-transaminase mutant HNILGD as biocatalyst, the WB-valorized 5-HMF was biologically aminated into HMFA in a high yield (92.1%) at 35 °C for 12 h through in situ removal of the amino transfer by-products of the amine donor, greatly reducing amine donor dosage (from D-Ala/5-HMF = 16/1 to D-Ala/5-HMF = 2/1, mol/mol) and improving the productivity of HMFA (0.282 g HMFA per g WB). This two-step chemical-enzymatic cascade reaction strategy with B:MA and HNILGD-AlaDH whole-cell provides a new idea for the chemoenzymatic synthesis of valuable furan chemicals from waste biomass.
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Affiliation(s)
- Changqing Wu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, Hubei Province, PR China
| | - Cuiluan Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, Hubei Province, PR China
| | - Qing Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, Hubei Province, PR China
| | - Haoyu Chai
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, Hubei Province, PR China
| | - Yu-Cai He
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, Hubei Province, PR China; School of Biological and Food Engineering, Changzhou University, Changzhou 213164, PR China.
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Chatterjee A, Puri S, Sharma PK, Deepa PR, Chowdhury S. Nature-inspired Enzyme engineering and sustainable catalysis: biochemical clues from the world of plants and extremophiles. Front Bioeng Biotechnol 2023; 11:1229300. [PMID: 37409164 PMCID: PMC10318364 DOI: 10.3389/fbioe.2023.1229300] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 06/12/2023] [Indexed: 07/07/2023] Open
Abstract
The use of enzymes to accelerate chemical reactions for the synthesis of industrially important products is rapidly gaining popularity. Biocatalysis is an environment-friendly approach as it not only uses non-toxic, biodegradable, and renewable raw materials but also helps to reduce waste generation. In this context, enzymes from organisms living in extreme conditions (extremozymes) have been studied extensively and used in industries (food and pharmaceutical), agriculture, and molecular biology, as they are adapted to catalyze reactions withstanding harsh environmental conditions. Enzyme engineering plays a key role in integrating the structure-function insights from reference enzymes and their utilization for developing improvised catalysts. It helps to transform the enzymes to enhance their activity, stability, substrates-specificity, and substrate-versatility by suitably modifying enzyme structure, thereby creating new variants of the enzyme with improved physical and chemical properties. Here, we have illustrated the relatively less-tapped potentials of plant enzymes in general and their sub-class of extremozymes for industrial applications. Plants are exposed to a wide range of abiotic and biotic stresses due to their sessile nature, for which they have developed various mechanisms, including the production of stress-response enzymes. While extremozymes from microorganisms have been extensively studied, there are clear indications that plants and algae also produce extremophilic enzymes as their survival strategy, which may find industrial applications. Typical plant enzymes, such as ascorbate peroxidase, papain, carbonic anhydrase, glycoside hydrolases and others have been examined in this review with respect to their stress-tolerant features and further improvement via enzyme engineering. Some rare instances of plant-derived enzymes that point to greater exploration for industrial use have also been presented here. The overall implication is to utilize biochemical clues from the plant-based enzymes for robust, efficient, and substrate/reaction conditions-versatile scaffolds or reference leads for enzyme engineering.
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Affiliation(s)
| | | | | | - P. R. Deepa
- *Correspondence: P. R. Deepa, ; Shibasish Chowdhury,
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Madadi M, Liu D, Qin Y, Zhang Y, Karimi K, Tabatabaei M, Gupta VK, Aghbashlo M, Ali SS. Integrated pretreatment of poplar biomass employing p-toluenesulfonic acid catalyzed liquid hot water and short-time ball milling for complete conversion to xylooligosaccharides, glucose, and native-like lignin. BIORESOURCE TECHNOLOGY 2023:129370. [PMID: 37343805 DOI: 10.1016/j.biortech.2023.129370] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/16/2023] [Accepted: 06/17/2023] [Indexed: 06/23/2023]
Abstract
This work aimed to study an integrated pretreatment technology employing p-toluenesulfonic acid (TsOH)-catalyzed liquid hot water (LHW) and short-time ball milling for the complete conversion of poplar biomass to xylooligosaccharides (XOS), glucose, and native-like lignin. The optimized TsOH-catalyzed LHW pretreatment solubilized 98.5% of hemicellulose at 160 °C for 40 min, releasing 49.8% XOS. Moreover, subsequent ball milling (20 min) maximized the enzymatic hydrolysis of cellulose from 65.8% to 96.5%, owing to the reduced particle sizes and cellulose crystallinity index. The combined pretreatment reduced the crystallinity by 70.9% while enlarging the average pore size and pore volume of the substrate by 29.5% and 52.4%, respectively. The residual lignin after enzymatic hydrolysis was rich in β-O-4 linkages (55.7/100 Ar) with a less condensed structure. This lignin exhibited excellent antioxidant activity (RSI of 66.22) and ultraviolet absorbance. Thus, this research suggested a sustainable waste-free biorefinery for the holistic valorization of biomass through two-step biomass fractionation.
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Affiliation(s)
- Meysam Madadi
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Dan Liu
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Yuanhang Qin
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reaction & Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, China
| | - Yinchao Zhang
- Key Laboratory for Tobacco Gene Resources, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Keikhosro Karimi
- Department of Chemical Engineering, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Meisam Tabatabaei
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Vijai Kumar Gupta
- Centre for Safe and Improved Food, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, United Kingdom
| | - Mortaza Aghbashlo
- Department of Mechanical Engineering of Agricultural Machinery, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Sameh Samir Ali
- Biofuels Institute, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
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Li K, Li C, Zhao XQ, Liu CG, Bai FW. Engineering Corynebacterium glutamicum for efficient production of succinic acid from corn stover pretreated by concentrated-alkali under steam-assistant conditions. BIORESOURCE TECHNOLOGY 2023; 378:128991. [PMID: 37003455 DOI: 10.1016/j.biortech.2023.128991] [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: 02/26/2023] [Revised: 03/28/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
Corynebacterium glutamicum was developed for efficient production of succinic acid from corn stover (CS) pretreated by concentrated-alkali under steam-assistant (CASA) conditions. First, C. glutamicum was engineered by 1) blocking the by-products pathways (deletion of ldh, pta-ackA, and cat), 2) enhancing the carbon flux to succinate (overexpression of pyc and ppc), and 3) releasing the end-product inhibition (overexpression of Ncgl0275). The recombinant strain produced 117.8 g/L succinate in fed-batch fermentation. Second, to fully utilize xylose in lignocellulosic hydrolysate, two xylose utilization pathways-the isomerase pathway and the Weimberg pathway-were introduced into the recombinant strain. Third, CS was pretreated by CASA with a higher sugars yield and a lower black liquid. Finally, 64.16 g/L of succinic acid was obtained from 150 g/L CASA-pretreated CS by engineered C. glutamicum. These results showed a succinate high-producing C. glutamicum strain using glucose and xylose simultaneously as well as an effective and environmentally acceptable pretreatment strategy.
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Affiliation(s)
- Kai Li
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Cheng Li
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Xin-Qing Zhao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chen-Guang Liu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Feng-Wu Bai
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
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Zhang Y, Wang R, Liu L, Wang E, Yang J, Yuan H. Distinct lignocellulolytic enzymes produced by Trichoderma harzianum in response to different pretreated substrates. BIORESOURCE TECHNOLOGY 2023; 378:128990. [PMID: 37003454 DOI: 10.1016/j.biortech.2023.128990] [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: 02/27/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 06/19/2023]
Abstract
In order to optimize the composition of enzyme cocktail for improving the hydrolytic efficiency of lignocellulose, different substrates were tested as inducers for producing lignocellulolytic enzymes by Trichoderma harzianum EM0925 in this study. As results, ultrafine grinding or steam explosion pretreated substrates can induce T. harzianum EM0925 to secret holo lignocellulolytic enzymes; acid treated substrate can induce cellobiohydrolase; while alkali or sodium chlorite treated substrates can induce β-xylosidase specifically. Furthermore, the combination of enzyme cocktails with different hydrolysis characteristics can further improve the hydrolysis efficiency, since 100% yields of glucose and xylose were obtained simultaneously from ultrafine grinding treated corn stover at low enzyme dosage (1.2 mg proteins/g substrate). This study for the first time demonstrated an effective solution that specific-pretreated substrates can be used as inducers for specific enzyme production by T. harzianum, which provided new idea and potential strategy for the construction of highly-efficient lignocellulolytic enzyme cocktails.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Animal Biotech Breeding and Key Laboratory of Soil Microbiology, Ministry of Agriculture, College of Biological Sciences, China Agricultural University, Beijing, China; Center for Advanced Measurement Science, National Institute of Metrology, Beijing, China
| | - Ruonan Wang
- State Key Laboratory of Animal Biotech Breeding and Key Laboratory of Soil Microbiology, Ministry of Agriculture, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Liang Liu
- State Key Laboratory of Animal Biotech Breeding and Key Laboratory of Soil Microbiology, Ministry of Agriculture, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Entao Wang
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Jinshui Yang
- State Key Laboratory of Animal Biotech Breeding and Key Laboratory of Soil Microbiology, Ministry of Agriculture, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Hongli Yuan
- State Key Laboratory of Animal Biotech Breeding and Key Laboratory of Soil Microbiology, Ministry of Agriculture, College of Biological Sciences, China Agricultural University, Beijing, China.
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Allende S, Brodie G, Jacob MV. Breakdown of biomass for energy applications using microwave pyrolysis: A technological review. ENVIRONMENTAL RESEARCH 2023; 226:115619. [PMID: 36906271 DOI: 10.1016/j.envres.2023.115619] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 02/14/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
The agricultural industry faces a permanent increase in waste generation, which is associated with the fast-growing population. Due to the environmental hazards, there is a paramount demand for generating electricity and value-added products from renewable sources. The selection of the conversion method is crucial to develop an eco-friendly, efficient and economically viable energy application. This manuscript investigates the influencing factors that affect the quality and yield of the biochar, bio-oil and biogas during the microwave pyrolysis process, evaluating the biomass nature and diverse combinations of operating conditions. The by-product yield depends on the intrinsic physicochemical properties of biomass. Feedstock with high lignin content is favourable for biochar production, and the breakdown of cellulose and hemicellulose leads to higher syngas formation. Biomass with high volatile matter concentration promotes the generation of bio-oil and biogas. The pyrolysis system's conditions of input power, microwave heating suspector, vacuum, reaction temperature, and the processing chamber geometry were influence factors for optimising the energy recovery. Increased input power and microwave susceptor addition lead to high heating rates, which were beneficial for biogas production, but the excess pyrolysis temperature induce a reduction of bio-oil yield.
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Affiliation(s)
- Scarlett Allende
- Electronics Material Lab, College of Science and Engineering, James Cook University, Townsville, QLD, 4811, Australia
| | - Graham Brodie
- Electronics Material Lab, College of Science and Engineering, James Cook University, Townsville, QLD, 4811, Australia
| | - Mohan V Jacob
- Electronics Material Lab, College of Science and Engineering, James Cook University, Townsville, QLD, 4811, Australia.
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Kumar Vaidyanathan V, Saikia K, Senthil Kumar P, Karanam Rathankumar A, Rangasamy G, Dattatraya Saratale G. Advances in enzymatic conversion of biomass derived furfural and 5-hydroxymethylfurfural to value-added chemicals and solvents. BIORESOURCE TECHNOLOGY 2023; 378:128975. [PMID: 36990330 DOI: 10.1016/j.biortech.2023.128975] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/24/2023] [Accepted: 03/25/2023] [Indexed: 06/19/2023]
Abstract
The progress of versatile chemicals and bio-based fuels using renewable biomass has gained ample importance. Furfural and 5-hydroxymethylfurfural are biomass-derived compounds that serve as the cornerstone for high-value chemicals and have a myriad of industrial applications. Despite the significant research into several chemical processes for furanic platform chemicals conversion, the harsh reaction conditions and toxic by-products render their biological conversion an ideal alternative strategy. Although biological conversion confers an array of advantages, these processes have been reviewed less. This review explicates and evaluates notable improvements in the bioconversion of 5-hydroxymethylfurfural and furfural to comprehend the current developments in the biocatalytic transformation of furan. Enzymatic conversion of HMF and furfural to furanic derivative have been explored, while the latter has substantially overlooked a foretime. This discrepancy was reviewed along with the outlook on the potential usage of 5-hydroxymethylfurfural and furfural for the furan-based value-added products' synthesis.
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Affiliation(s)
- Vinoth Kumar Vaidyanathan
- Integrated Bioprocessing Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - Kongkona Saikia
- Department of Biochemistry, FASCM, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641021, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603 110, Tamil Nadu, India; School of Engineering, Lebanese American University, Byblos, Lebanon
| | - Abiram Karanam Rathankumar
- Department of Biotechnology, Faculty of Engineering, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641021, India
| | - Gayathri Rangasamy
- School of Engineering, Lebanese American University, Byblos, Lebanon; University Centre for Research and Development & Department of Civil Engineering, Chandigarh University, Gharuan, Mohali, Punjab 140413, India
| | - Ganesh Dattatraya Saratale
- Department of Food Science and Biotechnology, Dongguk University, Ilsandong-gu, Goyang-si, Gyeonggido, Seoul 10326, South Korea.
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Ma Q, Zhou W, Du X, Huang H, Gong Z. Combined dilute sulfuric acid and Tween 80 pretreatment of corn stover significantly improves the enzyme digestibility: synergistic removal of hemicellulose and lignin. BIORESOURCE TECHNOLOGY 2023; 382:129218. [PMID: 37217142 DOI: 10.1016/j.biortech.2023.129218] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 05/24/2023]
Abstract
Pretreatment is a prerequisite to tackle the issue of biomass recalcitrance, which is the major hindrance of lignocellulose-to-sugars routes. In the present study, a novel combination of dilute sulfuric acid (dilute-H2SO4) with Tween 80 pretreatment of corn stover (CS) was developed to significantly enhance the enzyme digestibility. Strong synergistic effects of H2SO4 and Tween 80 for simultaneously eliminating hemicellulose and lignin and significantly promoting saccharification yield were observed. A response surface optimization realized the maximum monomeric sugar yield of 95.06% at 120 °C for 1.4 h with 0.75wt% of H2SO4 and 73.92 wt% of Tween 80. The excellent enzyme susceptibility of pretreated CS was explained by their physical and chemical characteristics via SEM, XRD, and FITR. The repeatedly recovered pretreatment liquor exerted highly-effective reusability in the subsequent pretreatments for at least four cycles. This strategy offers a highly-efficient and practical pretreatment strategy, which provides valuable information for the lignocellulose-to-sugars routes.
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Affiliation(s)
- Qishuai Ma
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan 430081, People's Republic of China
| | - Wenting Zhou
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan 430081, People's Republic of China; HuBei Province Key Laboratory of Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - Xiaoyu Du
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan 430081, People's Republic of China
| | - Hao Huang
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan 430081, People's Republic of China
| | - Zhiwei Gong
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan 430081, People's Republic of China; HuBei Province Key Laboratory of Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China.
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Xu D, Ma C, Wu M, Deng Y, He YC. Improved production of adipic acid from a high loading of corn stover via an efficient and mild combination pretreatment. BIORESOURCE TECHNOLOGY 2023; 382:129196. [PMID: 37207697 DOI: 10.1016/j.biortech.2023.129196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/14/2023] [Accepted: 05/15/2023] [Indexed: 05/21/2023]
Abstract
Adipic acid is one kind of important organic dibasic acid, which has crucial role in manufacturing plastics, lubricants, resins, fibers, etc. Using lignocellulose as feedstock for producing adipic acid can reduce production cost and improve bioresource utilization. After pretreated in the mixture of 7 wt% NaOH and 8 wt% ChCl-PEG10000 at 25 oC for 10 min, the surface of corn stover became loose and rough. The specific surface area was increased after the removal of lignin. A high loading of pretreated corn stover was enzymatically hydrolyzed by cellulase (20 FPU/g substrate) and xylanase (15 U/g substrate), and the yield of reducing sugars was as high as 75%. Biomass-hydrolysates obtained by enzymatic hydrolysis were efficiently fermented to produce adipic acid, and the yield was 0.45 g adipic acid per g reducing sugar. A sustainable approach for manufacturing adipic acid from lignocellulose via a room temperature pretreatment has great potential in future.
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Affiliation(s)
- Daozhu Xu
- School of Pharmacy, Changzhou University, Changzhou, PR China
| | - Cuiluan Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, PR China
| | - Mengjia Wu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, PR China
| | - Yu Deng
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi, PR China
| | - Yu-Cai He
- School of Pharmacy, Changzhou University, Changzhou, PR China; State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, PR China.
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Sun Z, Wang T, Zhang R, Li H, Wu Y, Toan S, Sun Z. Boosting hydrogen production via deoxygenation-sorption-enhanced biomass gasification. BIORESOURCE TECHNOLOGY 2023; 382:129197. [PMID: 37207696 DOI: 10.1016/j.biortech.2023.129197] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/09/2023] [Accepted: 05/15/2023] [Indexed: 05/21/2023]
Abstract
Gasification is one of the most promising approaches to accomplishing efficient utilization of biomass, nevertheless, it shows severe problems of low efficiency and syngas quality, which deserves further improvements. In this regard, deoxygenation-sorption-enhanced biomass gasification is proposed and experimentally explored using deoxidizer-decarbonizer materials (xCaO-Fe) for intensified hydrogen production. The materials follow the deoxygenated looping of Fe0-3e-↔Fe3+ as an electron donor and the decarbonized looping of CaO + CO2 ↔ CaCO3 as a CO2 sorbent. Specifically, the H2 yield and CO2 concentration reach 7.9 mmol·g-1 biomass and 10.5 vol%, which increases by 311% and decreases by 75%, respectively, compared with conventional gasification, confirming the promotion effect of deoxygenation-sorption enhancement. Fe embedded within the CaO phase is successfully constructed with the formation of functionalized interface structure, affirming the strong interaction between CaO and Fe. This study brings in a new concept for biomass utilization via synergistic deoxygenation and decarbonization, which will substantially boost high-quality renewable hydrogen production.
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Affiliation(s)
- Zhao Sun
- School of Energy Science and Engineering, Central South University, Changsha 410083, China
| | - Tingwei Wang
- School of Energy Science and Engineering, Central South University, Changsha 410083, China
| | - Rongjun Zhang
- State Key Laboratory of Catalytic Materials and Reaction Engineering, Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China
| | - Hongwei Li
- State Key Laboratory of Catalytic Materials and Reaction Engineering, Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China
| | - Yu Wu
- State Key Laboratory of Catalytic Materials and Reaction Engineering, Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China
| | - Sam Toan
- Department of Chemical Engineering, University of Minnesota, Duluth, MN 55812, USA
| | - Zhiqiang Sun
- School of Energy Science and Engineering, Central South University, Changsha 410083, China.
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Bhaskar T, Venkata Mohan S, You S, Kim SH, Porto de Souza Vandenberghe L. Biomass to green hydrogen (BGH2-2022). BIORESOURCE TECHNOLOGY 2023; 376:128924. [PMID: 36948427 DOI: 10.1016/j.biortech.2023.128924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Affiliation(s)
| | - S Venkata Mohan
- CSIR-Indian Institute of Chemical Technology, Hyderabad, India
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Sawhney D, Vaid S, Bangotra R, Sharma S, Dutt HC, Kapoor N, Mahajan R, Bajaj BK. Proficient bioconversion of rice straw biomass to bioethanol using a novel combinatorial pretreatment approach based on deep eutectic solvent, microwave irradiation and laccase. BIORESOURCE TECHNOLOGY 2023; 375:128791. [PMID: 36871702 DOI: 10.1016/j.biortech.2023.128791] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Current study is the first report of the combined application of chemical (deep eutectic solvent), physical (microwave irradiation) and biological (laccase) pretreatment strategies for enhancing the enzymatic digestibility of rice straw biomass. Pretreated rice straw biomass was saccharified by cellulase/xylanase from Aspergillus japonicus DSB2 to get a sugar yield of 252.36 mg/g biomass. Design of Experiment based optimization of pretreatment and saccharification variables increased the total sugar yield by 1.67 times (421.5 mg/g biomass, saccharification efficiency 72.6%). Sugary hydrolysate was ethanol-fermented by Saccharomyces cerevisiae and Pichia stipitis to achieve an ethanol yield of 214 mg/g biomass (bioconversion efficiency 72.5%). Structural/chemical aberrations induced in the biomass due to pretreatment were elucidated by X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy, and 1H nuclear magnetic resonance techniques to unravel the pretreatment mechanisms. Combined application of various physico-chemical/biological pretreatment may be a promising approach for proficient bioconversion of rice straw biomass.
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Affiliation(s)
- Diksha Sawhney
- School of Biotechnology, University of Jammu, Jammu 180006, India
| | - Surbhi Vaid
- School of Biotechnology, University of Jammu, Jammu 180006, India
| | - Ridhika Bangotra
- School of Biotechnology, University of Jammu, Jammu 180006, India
| | - Surbhi Sharma
- School of Biotechnology, University of Jammu, Jammu 180006, India
| | | | - Nisha Kapoor
- School of Biotechnology, University of Jammu, Jammu 180006, India
| | - Ritu Mahajan
- School of Biotechnology, University of Jammu, Jammu 180006, India
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Wang J, Shirvani H, Zhao H, Kibria MG, Hu J. Lignocellulosic biomass valorization via bio-photo/electro hybrid catalytic systems. Biotechnol Adv 2023; 66:108157. [PMID: 37084800 DOI: 10.1016/j.biotechadv.2023.108157] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/23/2023] [Accepted: 04/17/2023] [Indexed: 04/23/2023]
Abstract
Lignocellulosic biomass valorization is regarded as a promising approach to alleviate energy crisis and achieve carbon neutrality. Bioactive enzymes have attracted great attention and been commonly applied for biomass valorization owing to their high selectivity and catalytic efficiency under environmentally benign reaction conditions. Same as biocatalysis, photo-/electro-catalysis also happens at mild conditions (i.e., near ambient temperature and pressure). Therefore, the combination of these different catalytic approaches to benefit from their resulting synergy is appealing. In such hybrid systems, harness of renewable energy from the photo-/electro-catalytic compartment can be combined with the unique selectivity of biocatalysts, therefore providing a more sustainable and greener approach to obtain fuels and value-added chemicals from biomass. In this review, we firstly introduce the pros/cons, classifications, and the applications of photo-/electro-enzyme coupled systems. Then we focus on the fundamentals and comprehensive applications of the most representative biomass-active enzymes including lytic polysaccharide monooxygenases (LPMOs), glucose oxidase (GOD)/dehydrogenase (GDH) and lignin peroxidase (LiP), together with other biomass-active enzymes in the photo-/electro- enzyme coupled systems. Finally, we propose current deficiencies and future perspectives of biomass-active enzymes to be applied in the hybrid catalytic systems for global biomass valorization.
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Affiliation(s)
- Jiu Wang
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, Canada
| | - Hamed Shirvani
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, Canada
| | - Heng Zhao
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, Canada
| | - Md Golam Kibria
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, Canada.
| | - Jinguang Hu
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, Canada.
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50
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Kumar V, Lakkaboyana SK, Tsouko E, Maina S, Pandey M, Umesh M, Singhal B, Sharma N, Awasthi MK, Andler R, Jayaraj I, Yuzir A. Commercialization potential of agro-based polyhydroxyalkanoates biorefinery: A technical perspective on advances and critical barriers. Int J Biol Macromol 2023; 234:123733. [PMID: 36801274 DOI: 10.1016/j.ijbiomac.2023.123733] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023]
Abstract
The exponential increase in the use and careless discard of synthetic plastics has created an alarming concern over the environmental health due to the detrimental effects of petroleum based synthetic polymeric compounds. Piling up of these plastic commodities on various ecological niches and entry of their fragmented parts into soil and water has clearly affected the quality of these ecosystems in the past few decades. Among the many constructive strategies developed to tackle this global issue, use of biopolymers like polyhydroxyalkanoates as sustainable alternatives for synthetic plastics has gained momentum. Despite their excellent material properties and significant biodegradability, polyhydroxyalkanoates still fails to compete with their synthetic counterparts majorly due to the high cost associated with their production and purification thereby limiting their commercialization. Usage of renewable feedstocks as substrates for polyhydroxyalkanoates production has been the thrust area of research to attain the sustainability tag. This review work attempts to provide insights about the recent developments in the production of polyhydroxyalkanoates using renewable feedstock along with various pretreatment methods used for substrate preparation for polyhydroxyalkanoates production. Further, the application of blends based on polyhydroxyalkanoates, and the challenges associated with the waste valorization based polyhydroxyalkanoates production strategy is elaborated in this review work.
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Affiliation(s)
- Vinay Kumar
- Ecotoxicity and Bioconversion Laboratory, Department of Community Medicine, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Thandalam 602105, India; Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India.
| | - Sivarama Krishna Lakkaboyana
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600062, India; Department of Chemical and Environmental Engineering (ChEE), Malaysia-Japan International Institute of Technology (MJIIT)-Universiti Technologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
| | - Erminta Tsouko
- Department of Food Science and Nutrition, School of Environment, University of the Aegean, Metropolite Ioakeim 2, 81400, Myrina, Lemnos, Greece
| | - Sofia Maina
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Muskan Pandey
- School of Biotechnology, Gautam Buddha University, Greater Noida, U.P., India
| | - Mridul Umesh
- Department of Life Sciences, CHRIST (Deemed to be University), Hosur Road, Bengaluru 560029, Karnataka, India
| | - Barkha Singhal
- School of Biotechnology, Gautam Buddha University, Greater Noida, U.P., India
| | - Neha Sharma
- Metagenomics and Bioprocess Design Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Rodrigo Andler
- Escuela de Ingeniería en Biotecnología, Centro de Biotecnología de los Recursos Naturales (Cenbio), Universidad Católica del Maule, Chile
| | - Iyyappan Jayaraj
- Department of Bioengineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai 602105, India
| | - Ali Yuzir
- Department of Chemical and Environmental Engineering (ChEE), Malaysia-Japan International Institute of Technology (MJIIT)-Universiti Technologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
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