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Olawuni OA, Sadare OO, Moothi K. The adsorption routes of 4IR technologies for effective desulphurization using cellulose nanocrystals: Current trends, challenges, and future perspectives. Heliyon 2024; 10:e24732. [PMID: 38312585 PMCID: PMC10835247 DOI: 10.1016/j.heliyon.2024.e24732] [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: 12/15/2023] [Accepted: 01/12/2024] [Indexed: 02/06/2024] Open
Abstract
The combustion of liquid fuels as energy sources for transportation and power generation has necessitated governments worldwide to direct petroleum refineries to produce sulphur-free fuels for environmental sustainability. This review highlights the novel application of artificial intelligence for optimizing and predicting adsorptive desulphurization operating parameters and green isolation conditions of nanocellulose crystals from lignocellulosic biomass waste. The shortcomings of the traditional modelling and optimization techniques are stated, and artificial intelligence's role in overcoming them is broadly discussed. Also, the relationship between nanotechnology and artificial intelligence and the future perspectives of fourth industrial revolution (4IR) technologies for optimization and modelling of the adsorptive desulphurization process are elaborately discussed. The current study surveys different adsorbents used in adsorptive desulphurization and how biomass-based nanocellulose crystals (green adsorbents) are suitable alternatives for achieving cleaner fuels and environmental sustainability. Likewise, the present study reports the challenges and potential solutions to fully implementing 4IR technologies for effective desulphurization of liquid fuels in petroleum refineries. Hence, this study provides insightful information to benefit a broad audience in waste valorization for sustainability, environmental protection, and clean energy generation.
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Affiliation(s)
- Oluwagbenga A Olawuni
- Department of Chemical Engineering, Faculty of Engineering and the Built Environment, University of Johannesburg, Doornfontein Campus, Johannesburg, 2028, South Africa
| | - Olawumi O Sadare
- Department of Chemical Engineering, Faculty of Engineering and the Built Environment, University of Johannesburg, Doornfontein Campus, Johannesburg, 2028, South Africa
- Department of Chemical Engineering, Water Innovation and Research Centre (WIRC), University of Bath, Claveton Down, Bath, North East Somerset, BA27AY, South West, United Kingdom
| | - Kapil Moothi
- Department of Chemical Engineering, Faculty of Engineering and the Built Environment, University of Johannesburg, Doornfontein Campus, Johannesburg, 2028, South Africa
- School of Chemical and Minerals Engineering, Faculty of Engineering, North-West University, Potchefstroom, 2520, South Africa
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Hoang AT, Nguyen XP, Duong XQ, Ağbulut Ü, Len C, Nguyen PQP, Kchaou M, Chen WH. Steam explosion as sustainable biomass pretreatment technique for biofuel production: Characteristics and challenges. BIORESOURCE TECHNOLOGY 2023; 385:129398. [PMID: 37385558 DOI: 10.1016/j.biortech.2023.129398] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/23/2023] [Accepted: 06/24/2023] [Indexed: 07/01/2023]
Abstract
The biorefining process of lignocellulosic biomass has recently emerged as one of the most profitable biofuel production options. However, pretreatment is required to improve the recalcitrant lignocellulose's enzymatic conversion efficiency. Among biomass pretreatment methods, the steam explosion is an eco-friendly, inexpensive, and effective approach to pretreating biomass, significantly promoting biofuel production efficiency and yield. This review paper critically presents the steam explosion's reaction mechanism and technological characteristics for lignocellulosic biomass pretreatment. Indeed, the principles of steam explosion technology for lignocellulosic biomass pretreatment were scrutinized. Moreover, the impacts of process factors on pretreatment efficiency and sugar recovery for the following biofuel production were also discussed in detail. Finally, the limitations and prospects of steam explosion pretreatment were mentioned. Generally, steam explosion technology applications could bring great potential in pretreating biomass, although deeper studies are needed to deploy this method on industrial scales.
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Affiliation(s)
- Anh Tuan Hoang
- Institute of Engineering, HUTECH University, Ho Chi Minh City, Viet Nam
| | - Xuan Phuong Nguyen
- PATET Research Group, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam
| | - Xuan Quang Duong
- Institute of Mechanical Engineering, Vietnam Maritime University, Haiphong, Viet Nam
| | - Ümit Ağbulut
- Department of Mechanical Engineering, Faculty of Engineering, Duzce University, 81620, Düzce, Türkiye
| | - Christophe Len
- PSL Research University, Chimie ParisTech, CNRS, Paris Cedex 05, France
| | - Phuoc Quy Phong Nguyen
- PATET Research Group, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam
| | - Mohamed Kchaou
- Department of Mechanical Engineering, College of Engineering, University of Bisha, P.O. Box 1, Bisha, Saudi Arabia
| | - Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan; Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan.
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Moenaert A, Bjornsdottir B, Haraldsson EB, Allahgholi L, Zieri A, Zangl I, Sigurðardóttir S, Örlygsson J, Nordberg Karlsson E, Friðjónsson ÓH, Hreggviðsson GÓ. Metabolic engineering of Thermoanaerobacterium AK17 for increased ethanol production in seaweed hydrolysate. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:135. [PMID: 37697400 PMCID: PMC10496261 DOI: 10.1186/s13068-023-02388-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/01/2023] [Indexed: 09/13/2023]
Abstract
Sustainably produced renewable biomass has the potential to replace fossil-based feedstocks, for generation of biobased fuels and chemicals of industrial interest, in biorefineries. In this context, seaweeds contain a large fraction of carbohydrates that are a promising source for enzymatic and/or microbial biorefinery conversions. The thermoanaerobe Thermoanaerobacterium AK17 is a versatile fermentative bacterium producing ethanol, acetate and lactate from various sugars. In this study, strain AK17 was engineered for more efficient production of ethanol by knocking out the lactate and acetate side-product pathways. This was successfully achieved, but the strain reverted to acetate production by recruiting enzymes from the butyrate pathway. Subsequently this pathway was knocked out and the resultant strain AK17_M6 could produce ethanol close to the maximum theoretical yield (90%), leading to a 1.5-fold increase in production compared to the wild-type strain. Strain AK17 was also shown to successfully ferment brown seaweed hydrolysate from Laminaria digitata to ethanol in a comparatively high yield of 0.45 g/g substrate, with the primary carbon sources for the fermentations being mannitol, laminarin-derived glucose and short laminari-oligosaccharides. As strain AK17 was successfully engineered and has a wide carbohydrate utilization range that includes mannitol from brown seaweed, as well as hexoses and pentoses found in both seaweeds and lignocellulose, the new strain AK17_M6 obtained in this study is an interesting candidate for production of ethanol from both second and third generations biomass.
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Affiliation(s)
- Antoine Moenaert
- Department of Biotechnology, Matís Ohf, Reykjavík, Iceland.
- Faculty of Life and Environmental Sciences, University of Iceland, Reykjavík, Iceland.
| | | | - Einar Baldvin Haraldsson
- Department of Biotechnology, Matís Ohf, Reykjavík, Iceland
- Faculty of Life and Environmental Sciences, University of Iceland, Reykjavík, Iceland
| | - Leila Allahgholi
- Biotechnology, Department of Chemistry, Lund University, Lund, Sweden
| | - Anna Zieri
- IMC University of Applied Sciences Krems, Krems, Austria
| | - Isabella Zangl
- IMC University of Applied Sciences Krems, Krems, Austria
| | | | - Jóhann Örlygsson
- Faculty of Natural Resource Sciences, University of Akureyri, Akureyri, Iceland
| | | | - Ólafur H Friðjónsson
- Department of Biotechnology, Matís Ohf, Reykjavík, Iceland
- Faculty of Life and Environmental Sciences, University of Iceland, Reykjavík, Iceland
| | - Guðmundur Óli Hreggviðsson
- Department of Biotechnology, Matís Ohf, Reykjavík, Iceland
- Faculty of Life and Environmental Sciences, University of Iceland, Reykjavík, Iceland
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Zhang P, Shen MC, Zhang XY, Wang HY, Wang ZP. Valorization of the pelagic Sargassum horneri for co-production of erythritol and alginate oligosaccharides. BIORESOURCE TECHNOLOGY 2023; 379:128984. [PMID: 37003453 DOI: 10.1016/j.biortech.2023.128984] [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: 02/16/2023] [Revised: 03/25/2023] [Accepted: 03/27/2023] [Indexed: 05/03/2023]
Abstract
Pelagic Sargassum is invasive macroalgae with huge biomass. To produce bulk chemicals with profit from the biomass, innovative strategies need to be developed. In this study, maximum saccharification yield of Sargassum horneri biomass was obtained with the combined use of 3% alginate lyase and 3% cellulase, releasing 20.83 g/L glucose and 1.73 g/L mannitol at a 1:6 feed ratio. Subsequently, the crude S. horneri hydrolysate (pH 3.0) was proved most suitable for erythritol production of Yarrowia lipolytica strain. After 60 h fermentation in a 10-L fermenter, the erythritol concentration reached 18.42 g/L with a yield of 0.82 g/g; while the concentration of alginate oligosaccharides (AOS) was 37.56 g/L. Finally, AOS with a purity of 93.4% were obtained by ethanol precipitation, and erythritol was harvested via crystallization. This proposed strategy demonstrates the feasibility of transforming invasive Sargassum into two high-value chemicals for the first time.
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Affiliation(s)
- Peng Zhang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Min-Chong Shen
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Xin-Yue Zhang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Hai-Ying Wang
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Zhi-Peng Wang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China.
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Evaluation of Laminaria Digitata Hydrolysate for the Production of Bioethanol and Butanol by Fermentation. FERMENTATION 2023. [DOI: 10.3390/fermentation9010059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Seaweeds (macroalgae) are gaining attention as potential sustainable feedstock for the production of fuels and chemicals. This comparative study focuses on the characterization of the microbial production of alcohols from fermentable carbohydrates in the hydrolysate of the macroalgae Laminaria digitata as raw material. The potential of a hydrolysate as a carbon source for the production of selected alcohols was tested, using three physiologically different fermentative microbes, in two main types of processes. For the production of ethanol, Saccharomyces cerevisiae was used as a benchmark microorganism and compared with the strictly anaerobic thermophile Thermoanaerobacterium strain AK17. For mixed production of acetone/isopropanol, butanol, and ethanol (A/IBE), three strictly anaerobic Clostridium strains were compared. All strains grew well on the hydrolysate, and toxicity constraints were not observed, but fermentation performance and product profiles were shown to be both condition- and strain-specific. S. cerevisiae utilized only glucose for ethanol formation, while strain AK17 utilized glucose, mannitol, and parts of the glucan oligosaccharides. The clostridia strains tested showed different nutrient requirements, and were able to utilize glucan, mannitol, and organic acids in the hydrolysate. The novelty of this study embodies the application of different inoculates for fermenting a common brown seaweed found in the northern Atlantic Ocean. It provides important information on the fermentation properties of different microorganisms and pinpoints the value of carbon source utilization when selecting microbes for efficient bioconversion into biofuel and chemical products of interest.
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