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Klepacz-Smolka A, Shah MR, Jiang Y, Zhong Y, Chen P, Pietrzyk D, Szelag R, Ledakowicz S, Daroch M. Microalgae are not an umbrella solution for power industry waste abatement but could play a role in their valorization. Crit Rev Biotechnol 2024; 44:1296-1324. [PMID: 38105487 DOI: 10.1080/07388551.2023.2284644] [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: 09/03/2022] [Revised: 09/12/2023] [Accepted: 10/03/2023] [Indexed: 12/19/2023]
Abstract
Microalgae have long been regarded as a promising solution for biological carbon abatement from the power industry, offering renewable biomass without competing for land or water resources used for food crops. In this study, we extensively examined the application of photosynthetic microorganisms for closing carbon, nitrogen, and micronutrient loops in the power industry. Subsequently, we explored the bottom-up integration of algal biorefineries into power industry waste streams for increased economic benefits and reduced environmental impacts. Analysis of the available data indicated that microalgae integration with the power industry is primarily performed using flue-gas-assisted cultivation. This approach allows for carbon sequestration typically below one gram per liter per day, too low to significantly impact carbon abatement at achievable scales of microalgae cultivation. Alternative approaches are also being explored. For example, soluble bicarbonate platforms allow for higher biomass productivity and temporary carbon storage. Meanwhile, the use of ashes and waste heat and thermophilic strains can result in lower cultivation costs and better control of cultivation conditions. These approaches offer further incremental improvement to microalgae-based carbon abatement systems in the power industry but are unlikely to be an umbrella solution for carbon reduction. Consequently, in the near term, microalgae-based carbon valorization systems are likely to be limited to niche applications involving the synthesis of high-value products. For microalgae to truly transform carbon abatement processes radical improvements in both biology and engineering approaches are urgently needed.
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Affiliation(s)
- Anna Klepacz-Smolka
- Faculty of Process Engineering and Environmental Protection, Technical University of Lodz, Lodz, Poland
| | - Mahfuzur R Shah
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Ying Jiang
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Yuqing Zhong
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Pengyu Chen
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Damian Pietrzyk
- Faculty of Process Engineering and Environmental Protection, Technical University of Lodz, Lodz, Poland
| | - Rafal Szelag
- Faculty of Process Engineering and Environmental Protection, Technical University of Lodz, Lodz, Poland
| | - Stanislaw Ledakowicz
- Faculty of Process Engineering and Environmental Protection, Technical University of Lodz, Lodz, Poland
| | - Maurycy Daroch
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
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2
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Scapini T, Woiciechowski AL, Manzoki MC, Molina-Aulestia DT, Martinez-Burgos WJ, Fanka LS, Duda LJ, Vale ADS, de Carvalho JC, Soccol CR. Microalgae-mediated biofixation as an innovative technology for flue gases towards carbon neutrality: A comprehensive review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 363:121329. [PMID: 38852420 DOI: 10.1016/j.jenvman.2024.121329] [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: 02/07/2024] [Revised: 05/18/2024] [Accepted: 05/30/2024] [Indexed: 06/11/2024]
Abstract
Microalgae-mediated industrial flue gas biofixation has been widely discussed as a clean alternative for greenhouse gas mitigation. Through photosynthetic processes, microalgae can fix carbon dioxide (CO2) and other compounds and can also be exploited to obtain high value-added products in a circular economy. One of the major limitations of this bioprocess is the high concentrations of CO2, sulfur oxides (SOx), and nitrogen oxides (NOx) in flue gases, according to the origin of the fuel, that can inhibit photosynthesis and reduce the process efficiency. To overcome these limitations, researchers have recently developed new technologies and enhanced process configurations, thereby increased productivity and CO2 removal rates. Overall, CO2 biofixation rates from flue gases by microalgae ranged from 72 mg L-1 d -1 to over 435 mg L-1 d-1, which were directly influenced by different factors, mainly the microalgae species and photobioreactor. Additionally, mixotrophic culture have shown potential in improving microalgae productivity. Progress in developing new reactor configurations, with pilot-scale implementations was observed, resulting in an increase in patents related to the subject and in the implementation of companies using combustion gases in microalgae culture. Advancements in microalgae-based green technologies for environmental impact mitigation have led to more efficient biotechnological processes and opened large-scale possibilities.
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Affiliation(s)
- Thamarys Scapini
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Centro Politécnico, CP 19011, Curitiba, PR, 81531-908, Brazil
| | - Adenise Lorenci Woiciechowski
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Centro Politécnico, CP 19011, Curitiba, PR, 81531-908, Brazil.
| | - Maria Clara Manzoki
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Centro Politécnico, CP 19011, Curitiba, PR, 81531-908, Brazil
| | - Denisse Tatiana Molina-Aulestia
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Centro Politécnico, CP 19011, Curitiba, PR, 81531-908, Brazil
| | - Walter Jose Martinez-Burgos
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Centro Politécnico, CP 19011, Curitiba, PR, 81531-908, Brazil
| | - Letícia Schneider Fanka
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Centro Politécnico, CP 19011, Curitiba, PR, 81531-908, Brazil
| | - Leonardo José Duda
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Centro Politécnico, CP 19011, Curitiba, PR, 81531-908, Brazil
| | - Alexander da Silva Vale
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Centro Politécnico, CP 19011, Curitiba, PR, 81531-908, Brazil
| | - Julio Cesar de Carvalho
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Centro Politécnico, CP 19011, Curitiba, PR, 81531-908, Brazil
| | - Carlos Ricardo Soccol
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Centro Politécnico, CP 19011, Curitiba, PR, 81531-908, Brazil
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3
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Mao BD, Vadiveloo A, Qiu J, Gao F. Artificial photosynthesis: Promising approach for the efficient production of high-value bioproducts by microalgae. BIORESOURCE TECHNOLOGY 2024; 401:130718. [PMID: 38641303 DOI: 10.1016/j.biortech.2024.130718] [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: 02/19/2024] [Revised: 04/11/2024] [Accepted: 04/17/2024] [Indexed: 04/21/2024]
Abstract
Recently, microalgae had received extensive attention for carbon capture and utilization. But its overall efficiency still could not reach a satisfactory degree. Artificial photosynthesis showed better efficiency in the conversion of carbon dioxide. However, artificial photosynthesis could generally only produce C1-C3 organic matters at present. Some studies showed that heterotrophic microalgae can efficiently synthesize high value organic matters by using simple organic matter such as acetate. Therefore, the combination of artificial photosynthesis with heterotrophic microalgae culture showed great potential for efficient carbon capture and high-value organic matter production. This article systematically analyzed the characteristics and challenges of carbon dioxide conversion by microalgae and artificial photosynthesis. On this basis, the coupling mode and development trend of artificial photosynthesis combined with microalgae culture were discussed. In summary, the combination of artificial photosynthesis and microalgae culture has great potential in the field of carbon capture and utilization, and deserves further study.
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Affiliation(s)
- Bin-Di Mao
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316000, China
| | - Ashiwin Vadiveloo
- Centre for Water, Energy and Waste, Harry Butler Institute, Murdoch University, Perth 6150, Australia
| | - Jian Qiu
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316000, China
| | - Feng Gao
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316000, China.
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4
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Mora-Godínez S, Senés-Guerrero C, Pacheco A. De novo transcriptome and lipidome analysis of Desmodesmus abundans under model flue gas reveals adaptive changes after ten years of acclimation to high CO2. PLoS One 2024; 19:e0299780. [PMID: 38758755 PMCID: PMC11101044 DOI: 10.1371/journal.pone.0299780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 02/14/2024] [Indexed: 05/19/2024] Open
Abstract
Microalgae's ability to mitigate flue gas is an attractive technology that can valorize gas components through biomass conversion. However, tolerance and growth must be ideal; therefore, acclimation strategies are suggested. Here, we compared the transcriptome and lipidome of Desmodesmus abundans strains acclimated to high CO2 (HCA) and low CO2 (LCA) under continuous supply of model flue gas (MFG) and incomplete culture medium (BG11-N-S). Initial growth and nitrogen consumption from MFG were superior in strain HCA, reaching maximum productivity a day before strain LCA. However, similar productivities were attained at the end of the run, probably because maximum photobioreactor capacity was reached. RNA-seq analysis during exponential growth resulted in 16,435 up-regulated and 4,219 down-regulated contigs in strain HCA compared to LCA. Most differentially expressed genes (DEGs) were related to nucleotides, amino acids, C fixation, central carbon metabolism, and proton pumps. In all pathways, a higher number of up-regulated contigs with a greater magnitude of change were observed in strain HCA. Also, cellular component GO terms of chloroplast and photosystems, N transporters, and secondary metabolic pathways of interest, such as starch and triacylglycerols (TG), exhibited this pattern. RT-qPCR confirmed N transporters expression. Lipidome analysis showed increased glycerophospholipids in strain HCA, while LCA exhibited glycerolipids. Cell structure and biomass composition also revealed strains differences. HCA possessed a thicker cell wall and presented a higher content of pigments, while LCA accumulated starch and lipids, validating transcriptome and lipidome data. Overall, results showed significant differences between strains, where characteristic features of adaptation and tolerance to high CO2 might be related to the capacity to maintain a higher flux of internal C, regulate intracellular acidification, active N transporters, and synthesis of essential macromolecules for photosynthetic growth.
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Affiliation(s)
- Shirley Mora-Godínez
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Monterrey, Nuevo Leon, Mexico
| | | | - Adriana Pacheco
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Monterrey, Nuevo Leon, Mexico
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Zhang X, An L, Tian J, Ji B, Lu J, Liu Y. Microalgal capture of carbon dioxide: A carbon sink or source? BIORESOURCE TECHNOLOGY 2023; 390:129824. [PMID: 37852507 DOI: 10.1016/j.biortech.2023.129824] [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: 08/21/2023] [Revised: 10/02/2023] [Accepted: 10/02/2023] [Indexed: 10/20/2023]
Abstract
The rapidly evolving global warming is triggering all levels of actions to reduce industrial carbon emissions, while capturing carbon dioxide of industrial origin via microalgae has attracted increasing attention. This article attempted to offer preliminary analysis on the carbon capture potential of microalgal cultivation. It was shown that the energy consumption-associated with operation and nutrient input could significantly contribute to indirect carbon emissions, making the microalgal capture of carbon dioxide much less effective. In fact, the current microalgae processes may not be environmentally sustainable and economically viable in the scenario where the carbon footprints of both upstream and downstream processing are considered. To address these challenging issues, renewable energy (e.g., solar energy) and cheap nutrient source (e.g., municipal wastewater) should be explored to cut off the indirect carbon emissions of microalgae cultivation, meanwhile produced microalgae, without further processing, should be ideally used as biofertilizer or aquafeeds for realizing complete nutrients recycling.
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Affiliation(s)
- Xiaoyuan Zhang
- Engineering Laboratory of Low-Carbon Unconventional Water Resources Utilization and Water Quality Assurance, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Nankai University, Tianjin 300350, China
| | - Lei An
- Engineering Laboratory of Low-Carbon Unconventional Water Resources Utilization and Water Quality Assurance, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Junli Tian
- Engineering Laboratory of Low-Carbon Unconventional Water Resources Utilization and Water Quality Assurance, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Bin Ji
- Department of Water and Wastewater Engineering, School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Jinfeng Lu
- Engineering Laboratory of Low-Carbon Unconventional Water Resources Utilization and Water Quality Assurance, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Nankai University, Tianjin 300350, China
| | - Yu Liu
- Engineering Laboratory of Low-Carbon Unconventional Water Resources Utilization and Water Quality Assurance, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Nankai University, Tianjin 300350, China.
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6
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Chunzhuk EA, Grigorenko AV, Kiseleva SV, Chernova NI, Vlaskin MS, Ryndin KG, Butyrin AV, Ambaryan GN, Dudoladov AO. Effects of Light Intensity on the Growth and Biochemical Composition in Various Microalgae Grown at High CO 2 Concentrations. PLANTS (BASEL, SWITZERLAND) 2023; 12:3876. [PMID: 38005773 PMCID: PMC10674991 DOI: 10.3390/plants12223876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/12/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
In modern energy, various technologies for absorbing carbon dioxide from the atmosphere are being considered, including photosynthetic microalgae. An important task is to obtain maximum productivity at high concentrations of CO2 in gas-air mixtures. In this regard, the aim of the investigation is to study the effect of light intensity on the biomass growth and biochemical composition of five different microalgae strains: Arthrospira platensis, Chlorella ellipsoidea, Chlorella vulgaris, Gloeotila pulchra, and Elliptochloris subsphaerica. To assess the viability of microalgae cells, the method of cytochemical staining with methylene blue, which enables identifying dead cells during microscopy, was used. The microalgae were cultivated at 6% CO2 and five different intensities: 80, 120, 160, 200, and 245 μmol quanta·m-2·s-1. The maximum growth rate among all strains was obtained for C. vulgaris (0.78 g·L-1·d-1) at an illumination intensity of 245 µmol quanta·m-2·s-1. For E. subsphaerica and A. platensis, similar results (approximately 0.59 and 0.25 g·L-1·d-1 for each strain) were obtained at an illumination intensity of 160 and 245 µmol quanta·m-2·s-1. A decrease in protein content with an increase in illumination was noted for C. vulgaris (from 61.0 to 46.6%) and A. platensis (from 43.8 to 33.6%), and a slight increase in lipid content was shown by A. platensis (from 17.8 to 21.4%). The possibility of increasing microalgae biomass productivity by increasing illumination has been demonstrated. This result can also be considered as showing potential for enhanced lipid microalgae production for biodiesel applications.
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Affiliation(s)
- Elizaveta A. Chunzhuk
- Joint Institute for High Temperatures of the Russian Academy of Sciences, 125412 Moscow, Russia; (A.V.G.); (S.V.K.); (N.I.C.); (K.G.R.); (A.V.B.); (G.N.A.); (A.O.D.)
| | - Anatoly V. Grigorenko
- Joint Institute for High Temperatures of the Russian Academy of Sciences, 125412 Moscow, Russia; (A.V.G.); (S.V.K.); (N.I.C.); (K.G.R.); (A.V.B.); (G.N.A.); (A.O.D.)
| | - Sophia V. Kiseleva
- Joint Institute for High Temperatures of the Russian Academy of Sciences, 125412 Moscow, Russia; (A.V.G.); (S.V.K.); (N.I.C.); (K.G.R.); (A.V.B.); (G.N.A.); (A.O.D.)
- Faculty of Geography, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Nadezhda I. Chernova
- Joint Institute for High Temperatures of the Russian Academy of Sciences, 125412 Moscow, Russia; (A.V.G.); (S.V.K.); (N.I.C.); (K.G.R.); (A.V.B.); (G.N.A.); (A.O.D.)
- Faculty of Geography, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Mikhail S. Vlaskin
- Joint Institute for High Temperatures of the Russian Academy of Sciences, 125412 Moscow, Russia; (A.V.G.); (S.V.K.); (N.I.C.); (K.G.R.); (A.V.B.); (G.N.A.); (A.O.D.)
| | - Kirill G. Ryndin
- Joint Institute for High Temperatures of the Russian Academy of Sciences, 125412 Moscow, Russia; (A.V.G.); (S.V.K.); (N.I.C.); (K.G.R.); (A.V.B.); (G.N.A.); (A.O.D.)
| | - Aleksey V. Butyrin
- Joint Institute for High Temperatures of the Russian Academy of Sciences, 125412 Moscow, Russia; (A.V.G.); (S.V.K.); (N.I.C.); (K.G.R.); (A.V.B.); (G.N.A.); (A.O.D.)
| | - Grayr N. Ambaryan
- Joint Institute for High Temperatures of the Russian Academy of Sciences, 125412 Moscow, Russia; (A.V.G.); (S.V.K.); (N.I.C.); (K.G.R.); (A.V.B.); (G.N.A.); (A.O.D.)
| | - Aleksandr O. Dudoladov
- Joint Institute for High Temperatures of the Russian Academy of Sciences, 125412 Moscow, Russia; (A.V.G.); (S.V.K.); (N.I.C.); (K.G.R.); (A.V.B.); (G.N.A.); (A.O.D.)
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7
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Singh Chauhan D, Sahoo L, Mohanty K. Acclimation-driven microalgal cultivation improved temperature and light stress tolerance, CO 2 sequestration and metabolite regulation for bioenergy production. BIORESOURCE TECHNOLOGY 2023; 385:129386. [PMID: 37364652 DOI: 10.1016/j.biortech.2023.129386] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 06/28/2023]
Abstract
This study investigates temperature and light impact on the ability of Micractinium pusillum microalgae to mitigate CO2 and produce bioenergy in semi-continuous mode. Microalgae were exposed to temperatures (15, 25, and 35 °C) and light intensities (50, 350, and 650 μmol m-2 s-1), including two temperature cycles, 25 °C had the maximum growth rate, with no significant difference at 35 °C and light intensities of 350 and 650 μmol m-2 s-1. 15 °C temperature and 50 μmol m-2 s-1 light intensity reduced growth. Increased light intensity accelerated growth, CO2 utilization with carbon and bioenergy accumulation. Microalgae demonstrate rapid primary metabolic adjustment and acclimation reactions in response to changes in light and temperature conditions. Temperature correlated positively with carbon and nitrogen fixation, CO2 fixation, and carbon accumulation in the biomass, whereas there was no correlation found between light. In the temperature regime experiment, higher light intensity boosted nutrient and CO2 utilization, carbon buildup, and biomass bioenergy.
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Affiliation(s)
- Deepesh Singh Chauhan
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Lingaraj Sahoo
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India; Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Kaustubha Mohanty
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India; Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India.
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8
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Chunzhuk EA, Grigorenko AV, Kiseleva SV, Chernova NI, Ryndin KG, Kumar V, Vlaskin MS. The Influence of Elevated CO 2 Concentrations on the Growth of Various Microalgae Strains. PLANTS (BASEL, SWITZERLAND) 2023; 12:2470. [PMID: 37447030 DOI: 10.3390/plants12132470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023]
Abstract
The influence of elevated CO2 concentrations on the growth and viability of various microalgae strains was studied. Arthrospira platensis, Chlorella ellipsoidea, Chlorella vulgaris, Gloeotila pulchra, and Elliptochloris subsphaerica were tested. The cultivation of microalgae was carried out at constant CO2 concentrations (0.04, 3, 6, or 9%-sequentially from lower to higher concentrations), under constant (24 h·day-1) illumination with an intensity of 74.3 µmol quanta·m-2·s-1, and a constant temperature of 23.5 ± 0.5 °C. The optical density of the microalgae biomass, pH, and the chemical composition of the culture medium were measured. Microscopy (including the cytochemical microscopic method) was conducted to monitor the state of the microalgae. The highest biomass growth rate (0.37 g·L-1·day-1), among all experiments, was achieved for Chlorella vulgaris at CO2 = 3% and for Chlorella ellipsoidea at CO2 = 6 and 9%. The lowest growth rate (0.12 g·L-1·day-1) was achieved for Arthrospira platensis at CO2 = 3 and 9%. The microscopy results showed the absence or a minimum number of dead cells of the strains under selected conditions. The ability to maintain the viability of cultures up to significant concentrations of CO2 = 9% was due to adaptation (gradual increase in CO2 concentrations in the experiments).
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Affiliation(s)
- Elizaveta A Chunzhuk
- Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
| | - Anatoly V Grigorenko
- Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
| | - Sophia V Kiseleva
- Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
| | - Nadezhda I Chernova
- Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
- Faculty of Geography, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Kirill G Ryndin
- Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
| | - Vinod Kumar
- Algal Research and Bioenergy Lab, Department of Food Science and Technology, Graphic Era (Deemed to Be University), Dehradun 248002, India
- Department of Environmental Safety and Product Quality Management, Peoples' Friendship University of Russia Named after Patrice Lumumba, 117198 Moscow, Russia
| | - Mikhail S Vlaskin
- Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
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Xin K, Guo R, Zou X, Rao M, Huang Z, Kuang C, Ye J, Chen C, Huang C, Zhang M, Yang W, Cheng J. CO 2 gradient domestication improved high-concentration CO 2 tolerance and photoautotrophic growth of Euglena gracilis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 868:161629. [PMID: 36657669 DOI: 10.1016/j.scitotenv.2023.161629] [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: 11/21/2022] [Revised: 01/08/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
In order to improve CO2 biofixation efficiency of microalgae cultivated with coal-chemical flue gas, CO2 gradient domestication was employed to improve high-concentration CO2 tolerance and photoautotrophic growth of acid-tolerant Euglena gracilis. The dried biomass yield of photoautotrophic growth of E.gracilis increased from 1.09 g/L (wild-type strain) by 21 % to 1.32 g/L with CO2 gradient domestication to 15 % CO2. The RuBisCO activity and biomass production of E.gracilis strain domesticated to 99 % CO2 were 2.63 and 3.4 times higher, respectively, than those of wild-type strain. The chlorophyll a and b contents were 2.52 and 1.79 times higher, respectively, than those of wild-type strain. Superoxide dismutase and catalase activities of 99 % CO2-domesticated strain increased to 1.24 and 6 times, which reduced peroxide damage under high carbon stress and resulted in lower apoptotic and necrotic rates of domesticated strain. Thus, this work provides valuable guidance for CO2 fixation and adaptive evolution of E. gracilis in industrial flue gas.
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Affiliation(s)
- Kai Xin
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, Zhejiang, China
| | - Ruhan Guo
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, Zhejiang, China
| | - Xiangbo Zou
- Guangdong Energy Group Science and Technology Research Institute Co. Ltd., Guangzhou 510630, China
| | - Mumin Rao
- Guangdong Energy Group Science and Technology Research Institute Co. Ltd., Guangzhou 510630, China
| | - Zhimin Huang
- Guangdong Yudean Zhanjiang Biomass Power Co. Ltd., Zhanjiang 524300, China
| | - Cao Kuang
- Guangdong Energy Group Science and Technology Research Institute Co. Ltd., Guangzhou 510630, China
| | - Ji Ye
- Guangdong Energy Group Science and Technology Research Institute Co. Ltd., Guangzhou 510630, China
| | - Chuangting Chen
- Guangdong Energy Group Science and Technology Research Institute Co. Ltd., Guangzhou 510630, China
| | - Cong Huang
- Guangdong Yudean Zhanjiang Biomass Power Co. Ltd., Zhanjiang 524300, China
| | - Maoqiang Zhang
- Guangdong Yudean Zhanjiang Biomass Power Co. Ltd., Zhanjiang 524300, China
| | - Weijuan Yang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, Zhejiang, China
| | - Jun Cheng
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, Zhejiang, China; Key Laboratory of Low-grade Energy Utilization Technologies and Systems of Ministry of Education, Chongqing University, Chongqing 400044, China.
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10
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Shareefdeen Z, Elkamel A, Babar ZB. Recent Developments on the Performance of Algal Bioreactors for CO 2 Removal: Focusing on the Light Intensity and Photoperiods. BIOTECH (BASEL (SWITZERLAND)) 2023; 12:biotech12010010. [PMID: 36648836 PMCID: PMC9844339 DOI: 10.3390/biotech12010010] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/20/2022] [Accepted: 12/30/2022] [Indexed: 01/13/2023]
Abstract
This work presents recent developments of algal bioreactors used for CO2 removal and the factors affecting the reactor performance. The main focus of the study is on light intensity and photoperiods. The role of algae in CO2 removal, types of algal species used in bioreactors and conventional types of bioreactors including tubular bioreactor, vertical airlift reactor, bubble column reactor, flat panel or plate reactor, stirred tank reactor and specific type bioreactors such as hollow fibre membrane and disk photobioreactors etc. are discussed in details with respect to utilization of light. The effects of light intensity, light incident, photoinhibition, light provision arrangements and photoperiod on the performance of algal bioreactors for CO2 removal are also discussed. Efficient operation of algal photobioreactors cannot be achieved without the improvement in the utilization of incident light intensity and photoperiods. The readers may find this article has a much broader significance as algae is not only limited to removal or sequestration of CO2 but also it is used in a number of commercial applications including in energy (biofuel), nutritional and food sectors.
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Affiliation(s)
- Zarook Shareefdeen
- Department of Chemical and Biological Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates
- Correspondence:
| | - Ali Elkamel
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
- Department of Chemical Engineering, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Zaeem Bin Babar
- Institute of Environmental Sciences and Engineering (IESE), School of Civil and Environmental Engineering (SCEE), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
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11
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Lee TM, Lin JY, Tsai TH, Yang RY, Ng IS. Clustered regularly interspaced short palindromic repeats (CRISPR) technology and genetic engineering strategies for microalgae towards carbon neutrality: A critical review. BIORESOURCE TECHNOLOGY 2023; 368:128350. [PMID: 36414139 DOI: 10.1016/j.biortech.2022.128350] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
Carbon dioxide is the major greenhouse gas and regards as the critical issue of global warming and climate changes. The inconspicuous microalgae are responsible for 40% of carbon fixation among all photosynthetic plants along with a higher photosynthetic efficiency and convert the carbon into lipids, protein, pigments, and bioactive compounds. Genetic approach and metabolic engineering are applied to accelerate the growth rate and biomass of microalgae, hence achieve the mission of carbon neutrality. Meanwhile, CRISPR/Cas9 is efficiently to enhance the productivity of high-value compounds in microalgae for it is easier operation, more affordable and is able to regulate multiple genes simultaneously. The genetic engineering strategies provide the multidisciplinary concept to evolute and increase the CO2 fixation rate through Calvin-Benson-Bassham cycle. Therefore, the technologies, bioinformatics tools, systematic engineering approaches for carbon neutrality and circular economy are summarized and leading one step closer to the decarbonization society in this review.
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Affiliation(s)
- Tse-Min Lee
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Jia-Yi Lin
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Tsung-Han Tsai
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Ru-Yin Yang
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - I-Son Ng
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
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12
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Agro-Industrial Wastewaters for Algal Biomass Production, Bio-Based Products, and Biofuels in a Circular Bioeconomy. FERMENTATION 2022. [DOI: 10.3390/fermentation8120728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Recycling bioresources is the only way to sustainably meet a growing world population’s food and energy needs. One of the ways to do so is by using agro-industry wastewater to cultivate microalgae. While the industrial production of microalgae requires large volumes of water, existing agro-industry processes generate large volumes of wastewater with eutrophicating nutrients and organic carbon that must be removed before recycling the water back into the environment. Coupling these two processes can benefit the flourishing microalgal industry, which requires water, and the agro-industry, which could gain extra revenue by converting a waste stream into a bioproduct. Microalgal biomass can be used to produce energy, nutritional biomass, and specialty products. However, there are challenges to establishing stable and circular processes, from microalgae selection and adaptation to pretreating and reclaiming energy from residues. This review discusses the potential of agro-industry residues for microalgal production, with a particular interest in the composition and the use of important primary (raw) and secondary (digestate) effluents generated in large volumes: sugarcane vinasse, palm oil mill effluent, cassava processing waster, abattoir wastewater, dairy processing wastewater, and aquaculture wastewater. It also overviews recent examples of microalgae production in residues and aspects of process integration and possible products, avoiding xenobiotics and heavy metal recycling. As virtually all agro-industries have boilers emitting CO2 that microalgae can use, and many industries could benefit from anaerobic digestion to reclaim energy from the effluents before microalgal cultivation, the use of gaseous effluents is also discussed in the text.
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13
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Luo L, Yang C, Yang X, Liu F, Wang X, Chen P, Zhao T. Construction of ultra-microporous activated carbons derived from waste distiller's grains for efficient CO2 adsorption. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Akimbekov NS, Digel I, Tastambek KT, Marat AK, Turaliyeva MA, Kaiyrmanova GK. Biotechnology of Microorganisms from Coal Environments: From Environmental Remediation to Energy Production. BIOLOGY 2022; 11:biology11091306. [PMID: 36138784 PMCID: PMC9495453 DOI: 10.3390/biology11091306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/31/2022] [Accepted: 08/31/2022] [Indexed: 11/22/2022]
Abstract
Simple Summary Despite the wide perception that coal environments are extreme habitats, they harbor resident microbial communities. Coal-associated habitats, such as coal mine areas/drainages, spoil heaps, and coalbeds, are defined as complex ecosystems with indigenous microbial groups and native microecological networks. Resident microorganisms possess rich functional potentials and profoundly shape a range of biotechnological processes in the coal industry, from production to remediation. Abstract It was generally believed that coal sources are not favorable as live-in habitats for microorganisms due to their recalcitrant chemical nature and negligible decomposition. However, accumulating evidence has revealed the presence of diverse microbial groups in coal environments and their significant metabolic role in coal biogeochemical dynamics and ecosystem functioning. The high oxygen content, organic fractions, and lignin-like structures of lower-rank coals may provide effective means for microbial attack, still representing a greatly unexplored frontier in microbiology. Coal degradation/conversion technology by native bacterial and fungal species has great potential in agricultural development, chemical industry production, and environmental rehabilitation. Furthermore, native microalgal species can offer a sustainable energy source and an excellent bioremediation strategy applicable to coal spill/seam waters. Additionally, the measures of the fate of the microbial community would serve as an indicator of restoration progress on post-coal-mining sites. This review puts forward a comprehensive vision of coal biodegradation and bioprocessing by microorganisms native to coal environments for determining their biotechnological potential and possible applications.
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Affiliation(s)
- Nuraly S. Akimbekov
- Department of Biotechnology, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
- Correspondence:
| | - Ilya Digel
- Institute for Bioengineering, FH Aachen University of Applied Sciences, 52428 Jülich, Germany
| | - Kuanysh T. Tastambek
- Department of Fundamental Medicine, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
- Department of Applied Biology, M. Kh. Dulaty Taraz Regional University, Taraz 080012, Kazakhstan
- Ecology Research Institute, Khoja Akhmet Yassawi International Kazakh-Turkish University, Turkistan 161200, Kazakhstan
| | - Adel K. Marat
- Department of Biotechnology, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
| | - Moldir A. Turaliyeva
- Department of Biotechnology, M. Auezov South Kazakhstan University, Shymkent 160012, Kazakhstan
| | - Gulzhan K. Kaiyrmanova
- Department of Biotechnology, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
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15
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Barati B, Zafar FF, Qian L, Wang S, El-Fatah Abomohra A. Bioenergy characteristics of microalgae under elevated carbon dioxide. FUEL 2022; 321:123958. [DOI: 10.1016/j.fuel.2022.123958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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16
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Gauthier M, Senhorinho G, Basiliko N, Desjardins S, Scott J. Green Photosynthetic Microalgae from Low pH Environments Associated with Mining as a Potential Source of Antioxidants. Ind Biotechnol (New Rochelle N Y) 2022. [DOI: 10.1089/ind.2022.0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- M.R. Gauthier
- School of Engineering, Laurentian University, Sudbury, Ontario, Canada
| | - G.N.A. Senhorinho
- School of Engineering, Laurentian University, Sudbury, Ontario, Canada
| | - N. Basiliko
- Vale Living with Lakes Centre, Laurentian University, Sudbury, Ontario, Canada
- Department of Biology, Laurentian University, Sudbury, Ontario, Canada
| | - S. Desjardins
- School of Engineering, Laurentian University, Sudbury, Ontario, Canada
| | - J.A. Scott
- School of Engineering, Laurentian University, Sudbury, Ontario, Canada
- Department of Biology, Laurentian University, Sudbury, Ontario, Canada
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17
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Improving biomass growth of Nannochloropsis oceanica with electrical treatment. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.101923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Wang J, Wang Y, Wu Y, Fan Y, Zhu C, Fu X, Chu Y, Chen F, Sun H, Mou H. Application of Microalgal Stress Responses in Industrial Microalgal Production Systems. Mar Drugs 2021; 20:30. [PMID: 35049885 PMCID: PMC8779474 DOI: 10.3390/md20010030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/15/2021] [Accepted: 12/23/2021] [Indexed: 11/29/2022] Open
Abstract
Adaptive laboratory evolution (ALE) has been widely utilized as a tool for developing new biological and phenotypic functions to explore strain improvement for microalgal production. Specifically, ALE has been utilized to evolve strains to better adapt to defined conditions. It has become a new solution to improve the performance of strains in microalgae biotechnology. This review mainly summarizes the key results from recent microalgal ALE studies in industrial production. ALE designed for improving cell growth rate, product yield, environmental tolerance and wastewater treatment is discussed to exploit microalgae in various applications. Further development of ALE is proposed, to provide theoretical support for producing the high value-added products from microalgal production.
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Affiliation(s)
- Jia Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (J.W.); (Y.W.); (Y.F.); (C.Z.)
| | - Yuxin Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (J.W.); (Y.W.); (Y.F.); (C.Z.)
| | - Yijian Wu
- School of Foreign Languages, Lianyungang Technical College, Lianyungang 222000, China;
| | - Yuwei Fan
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (J.W.); (Y.W.); (Y.F.); (C.Z.)
| | - Changliang Zhu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (J.W.); (Y.W.); (Y.F.); (C.Z.)
| | - Xiaodan Fu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China;
| | - Yawen Chu
- Heze Zonghoo Jianyuan Biotech Co., Ltd, Heze 274000, China;
| | - Feng Chen
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China;
| | - Han Sun
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (J.W.); (Y.W.); (Y.F.); (C.Z.)
| | - Haijin Mou
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (J.W.); (Y.W.); (Y.F.); (C.Z.)
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19
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Recent Advances in Carbon Dioxide Conversion: A Circular Bioeconomy Perspective. SUSTAINABILITY 2021. [DOI: 10.3390/su13126962] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Managing the concentration of atmospheric CO2 requires a multifaceted engineering strategy, which remains a highly challenging task. Reducing atmospheric CO2 (CO2R) by converting it to value-added chemicals in a carbon neutral footprint manner must be the ultimate goal. The latest progress in CO2R through either abiotic (artificial catalysts) or biotic (natural enzymes) processes is reviewed herein. Abiotic CO2R can be conducted in the aqueous phase that usually leads to the formation of a mixture of CO, formic acid, and hydrogen. By contrast, a wide spectrum of hydrocarbon species is often observed by abiotic CO2R in the gaseous phase. On the other hand, biotic CO2R is often conducted in the aqueous phase and a wide spectrum of value-added chemicals are obtained. Key to the success of the abiotic process is understanding the surface chemistry of catalysts, which significantly governs the reactivity and selectivity of CO2R. However, in biotic CO2R, operation conditions and reactor design are crucial to reaching a neutral carbon footprint. Future research needs to look toward neutral or even negative carbon footprint CO2R processes. Having a deep insight into the scientific and technological aspect of both abiotic and biotic CO2R would advance in designing efficient catalysts and microalgae farming systems. Integrating the abiotic and biotic CO2R such as microbial fuel cells further diversifies the spectrum of CO2R.
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20
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LaPanse AJ, Krishnan A, Posewitz MC. Adaptive Laboratory Evolution for algal strain improvement: methodologies and applications. ALGAL RES 2021. [DOI: 10.1016/j.algal.2020.102122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Desjardins SM, Laamanen CA, Basiliko N, Scott JA. Selection and re-acclimation of bioprospected acid-tolerant green microalgae suitable for growth at low pH. Extremophiles 2021; 25:129-141. [PMID: 33475805 DOI: 10.1007/s00792-021-01216-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 01/06/2021] [Indexed: 01/04/2023]
Abstract
For mass culture of photosynthetic green microalgae, industrial flue gases can represent a low-cost resource of CO2. However, flue gases are often avoided, because they often also contain high levels of SO2 and/or NO2, which cause significant acidification of media to below pH 3 due to production of sulfuric and nitric acid. This creates an unsuitable environment for the neutrophilic microalgae commonly used in large-scale commercial production. To address this issue, we have looked at selecting acid-tolerant microalgae via growth at pH 2.5 carried out with samples bioprospected from an active smelter site. Of the eight wild samples collected, one consisting mainly of Coccomyxa sp. grew at pH 2.5 and achieved a density of 640 mg L-1. Furthermore, three previously bioprospected green microalgae from acidic waters (pH 3-4.5) near abandoned mine sites were also re-acclimated down to their in-situ pH environment after approximately 4 years spent at neutral pH. Of those three, an axenic culture of Coccomyxa sp. was the most successful at re-acclimating and achieved the highest density of 293.1 mg L-1 and maximum daily productivity of 38.8 mg L-1 day-1 at pH 3. Re-acclimation of acid-tolerant species is, therefore, achievable when directly placed at their original pH, but gradual reduction in pH is recommended to give the cells time to acclimate.
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Affiliation(s)
- Sabrina Marie Desjardins
- Bharti School of Engineering, Laurentian University, Sudbury, ON, Canada.,Vale Living With Lakes Centre, Laurentian University, Sudbury, ON, Canada
| | | | - Nathan Basiliko
- Bharti School of Engineering, Laurentian University, Sudbury, ON, Canada.,Vale Living With Lakes Centre, Laurentian University, Sudbury, ON, Canada.,Department of Biology, Laurentian University, Sudbury, ON, Canada
| | - John Ashley Scott
- Bharti School of Engineering, Laurentian University, Sudbury, ON, Canada. .,Vale Living With Lakes Centre, Laurentian University, Sudbury, ON, Canada. .,Department of Biology, Laurentian University, Sudbury, ON, Canada.
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22
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Screening of native microalgae species for carbon fixation at the vicinity of Malaysian coal-fired power plant. Sci Rep 2020; 10:22355. [PMID: 33339883 PMCID: PMC7749181 DOI: 10.1038/s41598-020-79316-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/07/2020] [Indexed: 12/02/2022] Open
Abstract
Global warming has become a serious issue nowadays as the trend of CO2 emission is increasing by years. In Malaysia, the electricity and energy sector contributed a significant amount to the nation’s CO2 emission due to fossil fuel use. Many research works have been carried out to mitigate this issue, including carbon capture and utilization (CCUS) technology and biological carbon fixation by microalgae. This study makes a preliminary effort to screen native microalgae species in the Malaysian coal-fired power plant’s surrounding towards carbon fixation ability. Three dominant species, including Nannochloropsis sp., Tetraselmis sp., and Isochrysis sp. were identified and tested in the laboratory under ambient and pure CO2 condition to assess their growth and CO2 fixation ability. The results indicate Isochrysis sp. as the superior carbon fixer against other species. In continuation, the optimization study using Response Surface Methodology (RSM) was carried out to optimize the operating conditions of Isochrysis sp. using a customized lab-scale photobioreactor under simulated flue gas exposure. This species was further acclimatized and tested under actual flue gas generated by the power plant. Isochrysis sp. had shown its capability as a carbon fixer with CO2 fixation rate of 0.35 gCO2/L day under actual coal-fired flue gas exposure after cycles of acclimatization phase. This work is the first to demonstrate indigenous microalgae species' ability as a carbon fixer under Malaysian coal-fired flue gas exposure. Thus, the findings shall be useful in exploring the microalgae potential as a biological agent for carbon emission mitigation from power plants more sustainably.
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23
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Gauthier M, Senhorinho G, Scott J. Microalgae under environmental stress as a source of antioxidants. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102104] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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24
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Comparison of photosynthetic carbon fixation of Nannochloropsis oceanica cultivated with carbon suppliers: CO2, NaHCO3 and CH3OH. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.101235] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Zhao Q, Huang H. Adaptive Evolution Improves Algal Strains for Environmental Remediation. Trends Biotechnol 2020; 39:112-115. [PMID: 32943212 DOI: 10.1016/j.tibtech.2020.08.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/23/2020] [Accepted: 08/24/2020] [Indexed: 01/07/2023]
Abstract
Microalgae have potential for environmental remediation, but they must better tolerate stress. Adaptive laboratory evolution (ALE) is effective to construct evolved strains, but its efficiency is low. Highly efficient ALE relies on selecting suitable environmental stress, original strain selection, and optimizing initial cell density and stress strategy.
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Affiliation(s)
- Quanyu Zhao
- School of Pharmaceutical Science, Nanjing Tech University, 30 Puzhu South Road, Nanjing 211816, China.
| | - He Huang
- School of Pharmaceutical Science, Nanjing Tech University, 30 Puzhu South Road, Nanjing 211816, China; School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, 2 Xuelin Road, Nanjing 210023, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, No. 5 Xinmofan Road, Nanjing 210009, China.
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Estrada-Graf A, Hernández S, Morales M. Biomitigation of CO 2 from flue gas by Scenedesmus obtusiusculus AT-UAM using a hybrid photobioreactor coupled to a biomass recovery stage by electro-coagulation-flotation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:28561-28574. [PMID: 32130637 DOI: 10.1007/s11356-020-08240-2] [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: 09/15/2019] [Accepted: 02/25/2020] [Indexed: 05/05/2023]
Abstract
The microalga Scenedesmus obtusiusculus AT-UAM efficiently captured CO2 from two flue gas streams in a hybrid photobioreactor located in a greenhouse. Uptake rates of CO2, NO, and SO2 from a formulated gas stream were 160.7 mg L-1 day-1, 0.73 mg L-1 day-1, and 1.56 mg L-1 day-1, respectively, with removal efficiencies of 100% for all gases. Exhaust gases of a motor generator were also removed with uptake rates of 111.4 mg L-1 day-1, 0.42 mg L-1 day-1, and 0.98 mg L-1 day-1, obtaining removal efficiencies of 77%, 71%, and 53% for CO2, NOx, and SO2, respectively. On average, 61% of the CO2 from both flue gas streams was assimilated as microalgal biomass. The maximum CO2 uptake rate of 182 mg L-1 day-1 was achieved for formulated flue gas flow rate above 100 mL min-1. The biomass recovery of 88% was achieved using a 20-L electro-coagulation-flotation chamber coupled to a settler with a low specific power consumption of 0.27 kWh kg-1. The photobioreactor was operated for almost 7 months without contamination of invasive species or a decrease in the activity. It is a very encouraging result for long-term operation in flue gas treatment.
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Affiliation(s)
- Adrián Estrada-Graf
- Maestría en Ciencias Naturales e Ingeniería, Universidad Autónoma Metropolitana Cuajimalpa, Av. Vasco de Quiroga 4871, Colonia Santa Fe Cuajimalpa, 05300, Mexico City, Mexico
| | - Sergio Hernández
- Departamento de Procesos y Tecnología, Universidad Autónoma Metropolitana Cuajimalpa, Av. Vasco de Quiroga 4871, Colonia Santa Fe Cuajimalpa, 05300, Mexico City, Mexico
| | - Marcia Morales
- Departamento de Procesos y Tecnología, Universidad Autónoma Metropolitana Cuajimalpa, Av. Vasco de Quiroga 4871, Colonia Santa Fe Cuajimalpa, 05300, Mexico City, Mexico.
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Nagappan S, Tsai PC, Devendran S, Alagarsamy V, Ponnusamy VK. Enhancement of biofuel production by microalgae using cement flue gas as substrate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:17571-17586. [PMID: 31512119 DOI: 10.1007/s11356-019-06425-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 09/04/2019] [Indexed: 06/10/2023]
Abstract
The cement industry generates a substantial amount of gaseous pollutants that cannot be treated efficiently and economically using standard techniques. Microalgae, a promising bioremediation and biodegradation agent used as feedstock for biofuel production, can be used for the biotreatment of cement flue gas. In specific, components of cement flue gas such as carbon dioxide, nitrogen, and sulfur oxides are shown to serve as nutrients for microalgae. Microalgae also have the capacity to sequestrate heavy metals present in cement kiln dust, adding further benefits. This work provides an extensive overview of multiple approaches taken in the inclusion of microalgae biofuel production in the cement sector. In addition, factors influencing the production of microalgal biomass are also described in such an integrated plant. In addition, process limitations such as the adverse impact of flue gas on medium pH, exhaust gas toxicity, and efficient delivery of carbon dioxide to media are also discussed. Finally, the article concludes by proposing the future potential for incorporating the microalgae biofuel plant into the cement sector.
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Affiliation(s)
- Senthil Nagappan
- Department of Biotechnology, Sri Venkateswara College of Engineering (Autonomous - Affiliated to Anna University), Sriperumbudur, Tamil Nadu, 602 117, India
| | - Pei-Chien Tsai
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Road, Sanmin District, Kaohsiung City, 807, Taiwan
| | - Saravanan Devendran
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Vardhini Alagarsamy
- Department of Biotechnology, Sri Venkateswara College of Engineering (Autonomous - Affiliated to Anna University), Sriperumbudur, Tamil Nadu, 602 117, India
| | - Vinoth Kumar Ponnusamy
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Road, Sanmin District, Kaohsiung City, 807, Taiwan.
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung City, 807, Taiwan.
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A combination process of mineral carbonation with SO2 disposal for simulated flue gas by magnesia-added seawater. Front Chem Sci Eng 2019. [DOI: 10.1007/s11705-019-1871-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Qie F, Zhu J, Rong J, Zong B. Biological removal of nitrogen oxides by microalgae, a promising strategy from nitrogen oxides to protein production. BIORESOURCE TECHNOLOGY 2019; 292:122037. [PMID: 31474540 DOI: 10.1016/j.biortech.2019.122037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/16/2019] [Accepted: 08/17/2019] [Indexed: 06/10/2023]
Abstract
Nitrogen oxides (NOx) are the components of fossil flue gases that give rise to serious environmental and health hazards. Among the available techniques for NOx removal, microalgae-based biological removal of NOx (BioDeNOx) is a promising and competent technology with eco-friendly path of low energy and low-cost solution for the pollution. In this review article, current biological technologies including bacteria-based and microalgae-related BioDeNOx are discussed. Comparing to direct BioDeNOx approach, indirect BioDeNOx by microalgae is more promising since it is more stable, reliable and efficient. By transforming inorganic nitrogen nutrients to organic nitrogen, microalgae can potentially play an important role in converting NOx into high-value added products. The microalgae-based BioDeNOx process displays an attractive prospect for flue gas treatment to reduce environmental NOx pollution and potentially supply protein products, establishing an efficient circular-economy strategy.
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Affiliation(s)
- Fengxiang Qie
- Research Centre of Renewable Energy, Research Institute of Petroleum Processing, Sinopec, Beijing 100083, PR China
| | - Junying Zhu
- Research Centre of Renewable Energy, Research Institute of Petroleum Processing, Sinopec, Beijing 100083, PR China
| | - Junfeng Rong
- Research Centre of Renewable Energy, Research Institute of Petroleum Processing, Sinopec, Beijing 100083, PR China.
| | - Baoning Zong
- Research Centre of Renewable Energy, Research Institute of Petroleum Processing, Sinopec, Beijing 100083, PR China
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Cheng J, Zhu Y, Zhang Z, Yang W. Modification and improvement of microalgae strains for strengthening CO 2 fixation from coal-fired flue gas in power plants. BIORESOURCE TECHNOLOGY 2019; 291:121850. [PMID: 31358426 DOI: 10.1016/j.biortech.2019.121850] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 07/17/2019] [Accepted: 07/19/2019] [Indexed: 05/20/2023]
Abstract
Biological CO2 capture using microalgae is a promising new method for reducing CO2 emission of coal-fired flue gas. The strain of microalgae used in this process plays a vital role in determining the rate of CO2 fixation and characteristics of biomass production. High requirements are put forward for algae strains due to high CO2 concentration and diverse pollutants in flue gas. CO2 can directly diffuse into the cytoplasm of cells by extra- and intracellular CO2 osmotic pressure under high CO2 concentrations. The flue gas pollutants, such as SOx, NOx and fly ashes, have negative effects on the growth of microalgae. This work reviewed the state-of-the-art advances on microalgae strains used for CO2 fixation, focusing on the modification and improvement of strains that are used for coal-fired flue gas. Methods such as genetic engineering, random mutagenesis, and adaptive evolution have the potential to facilitate photosynthesis, improve growth rate and reduce CO2 emission.
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Affiliation(s)
- Jun Cheng
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China.
| | - Yanxia Zhu
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Ze Zhang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Weijuan Yang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
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Chou HH, Su HY, Song XD, Chow TJ, Chen CY, Chang JS, Lee TM. Isolation and characterization of Chlorella sp. mutants with enhanced thermo- and CO 2 tolerances for CO 2 sequestration and utilization of flue gases. BIOTECHNOLOGY FOR BIOFUELS 2019; 12:251. [PMID: 31641373 PMCID: PMC6800494 DOI: 10.1186/s13068-019-1590-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 10/11/2019] [Indexed: 06/07/2023]
Abstract
BACKGROUND The increasing emission of flue gas from industrial plants contributes to environmental pollution, global warming, and climate change. Microalgae have been considered excellent biological materials for flue gas removal, particularly CO2 mitigation. However, tolerance to high temperatures is also critical for outdoor microalgal mass cultivation. Therefore, flue gas- and thermo-tolerant mutants of Chlorella vulgaris ESP-31 were generated and characterized for their ability to grow under various conditions. RESULTS In this study, we obtained two CO2- and thermo-tolerant mutants of Chlorella vulgaris ESP-31, namely, 283 and 359, with enhanced CO2 tolerance and thermo-tolerance by using N-methyl-N-nitro-N-nitrosoguanidine (NTG) mutagenesis followed by screening at high temperature and under high CO2 conditions with the w-zipper pouch selection method. The two mutants exhibited higher photosynthetic activity and biomass productivity than that of the ESP-31 wild type. More importantly, the mutants were able to grow at high temperature (40 °C) and a high concentration of simulated flue gas (25% CO2, 80-90 ppm SO2, 90-100 ppm NO) and showed higher carbohydrate and lipid contents than did the ESP-31 wild type. CONCLUSIONS The two thermo- and flue gas-tolerant mutants of Chlorella vulgaris ESP-31 were useful for CO2 mitigation from flue gas under heated conditions and for the production of carbohydrates and biodiesel directly using CO2 from flue gas.
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Affiliation(s)
- Hsiang-Hui Chou
- Department of Biotechnology, Fooyin University, Kaohsiung, 83102 Taiwan
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, 80424 Taiwan
| | - Hsiang-Yen Su
- China-Latin America Joint Laboratory for Clean Energy and Climate Change, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan, 523808 China
| | - Xiang-Di Song
- Department of Biotechnology, Fooyin University, Kaohsiung, 83102 Taiwan
| | - Te-Jin Chow
- Department of Biotechnology, Fooyin University, Kaohsiung, 83102 Taiwan
| | - Chun-Yen Chen
- University Center of Bioscience and Biotechnology, National Cheng Kung University, Tainan, 70146 Taiwan
| | - Jo-Shu Chang
- Department of Chemical Engineering, National Cheng-Kung University, Tainan, 70146 Taiwan
- Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan, 70146 Taiwan
| | - Tse-Min Lee
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, 80424 Taiwan
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Cheng D, Li X, Yuan Y, Zhao Q. Kinetic model for effects of simulated flue gas onto growth profiles of Chlorella sp. AE10 and Chlorella sp. Cv. Biotechnol Appl Biochem 2019; 67:783-789. [PMID: 31584216 DOI: 10.1002/bab.1829] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 09/22/2019] [Indexed: 11/11/2022]
Abstract
Microalgae are potential candidate for biofuel production as alternative one for fossil fuels. CO2 in flue gas is available carbon source to support microalgae growth. In this study, the effects of different concentrations of the simulated flue gas onto algal growth and photosynthetic activity were evaluated for both Chlorella sp. AE10 and Chlorella sp. Cv. The growth profiles were correlated by a simple kinetic model. It was indicated that the simulated flue gas led to low pH and the photosynthetic activity was partially destroyed. Chlorella sp. Cv can tolerate full simulated flue gas, 10% CO2 + 200 ppm NOx + 100 ppm SOx . The pH in medium maintained at 6 and the photosynthetic activity was more than 0.6 at the first 6 days. If the concentration of NOx was more 100 ppm and that of SOx was more than 50 ppm, the pH was declined to 4 at day 2 or 3 for Chlorella sp. AE10. At the same time, the related photosynthetic activities of Chlorella sp. AE10 were less than 0.4, which was not suitable for algal growth. It was shown that Chlorella sp. Cv could be used for CO2 fixation from the simulated flue gas.
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Affiliation(s)
- Dujia Cheng
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, People's Republic of China.,ShanghaiTech University, Shanghai, People's Republic of China
| | - Xuyang Li
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, People's Republic of China.,School of Life Science, Shanghai University, Shanghai, People's Republic of China
| | - Yizhong Yuan
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, People's Republic of China.,ShanghaiTech University, Shanghai, People's Republic of China
| | - Quanyu Zhao
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, People's Republic of China.,ShanghaiTech University, Shanghai, People's Republic of China.,School of Pharmaceutical Science, Nanjing Tech University, Nanjing, People's Republic of China
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Microalgae Cultivation in Pilot Scale for Biomass Production Using Exhaust Gas from Thermal Power Plants. ENERGIES 2019. [DOI: 10.3390/en12183497] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Exhaust gases from thermal power plants have the highest amount of carbon dioxide (CO2), presenting an environmental problem related to a severe impact on ecosystems. Extensively, the reduction of CO2 from thermal power plants has been considered with the aid of microalgae as a cost-effective, sustainable solution, and efficient biological means for recycling of CO2. Microalgae can efficiently uptake CO2 and nutrients resulting in high generation of biomass and which can be processed into different valuable products. In this study, we have taken Nephroselmis sp. KGE8, Acutodesmus obliquus KGE 17 and Acutodesmus obliquus KGE32 microalgae, which are isolated from acid mine drainage and cultivated in a photobiological incubator on a batch scale, and also confirmed that continuous culture was possible on pilot scale for biofuel production. We also evaluated the continuous culture productivity of each cultivate-harvest cycle in the pilot scale. The biomass of the cultivated microalgae was also evaluated for its availability.
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Singh HM, Kothari R, Gupta R, Tyagi VV. Bio-fixation of flue gas from thermal power plants with algal biomass: Overview and research perspectives. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 245:519-539. [PMID: 30803750 DOI: 10.1016/j.jenvman.2019.01.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 12/03/2018] [Accepted: 01/15/2019] [Indexed: 06/09/2023]
Abstract
Rate of energy production is reflecting growth of nations and most of energy produced from the coal and natural gas-based thermal power plants (TPPs). Flue gas (point sources of emission) are main exhaustible form of gases that come from thermal power plants and are continuously promoting climate change and various environmental problems in global scenario. The present available technologies of flue gas treatment are energy and cost-intensive process. Among the available techniques for fixation of flue-gases at sustainable part, microalgal bio-fixation of flue gas is an alternative promising and competent technology with assurance of eco-friendly path of low energy and low-cost solution for pollution abetment with production of value added products. According to mechanism involves during photosynthetic process of microalgae, it utilizes atmospheric CO2 and CO2 from flue gases for their growth. Past, present and future treatment technologies for flue gas with their challenges are discussed. Recent experimental studies and commercially available bioreactors are very particular for bio-fixation of flue gas from thermal power plants are also reviewed with their future perspectives. The commercial viability of process with specific microalgal strains and utilized biomass for further value-added products are suggested with future limitations.
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Affiliation(s)
- Har Mohan Singh
- School of Energy Management, Shri Mata Vaishno Devi University, Katra, 182320, (J&K), India
| | - Richa Kothari
- Department of Environmental Sciences, Central University of Jammu, Samba, 181143, (J&K), India; Department of Environmental Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow, 226025, UP, India.
| | - Rakesh Gupta
- School of Energy Management, Shri Mata Vaishno Devi University, Katra, 182320, (J&K), India
| | - V V Tyagi
- School of Energy Management, Shri Mata Vaishno Devi University, Katra, 182320, (J&K), India.
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35
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Aslam A, Thomas-Hall SR, Mughal T, Zaman QU, Ehsan N, Javied S, Schenk PM. Heavy metal bioremediation of coal-fired flue gas using microalgae under different CO 2 concentrations. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 241:243-250. [PMID: 31005725 DOI: 10.1016/j.jenvman.2019.03.118] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 02/15/2019] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
Sustainability assessments have revealed that integration of CO2 from coal-fired flue gas with microalgae cultivation systems could reduce greenhouse gas emissions. The technical goal of this integration is to utilize exhaust from coal power plants to enhance microalgae cultivation processes by capturing and recycling of carbon dioxide from a more toxic to a less toxic form. However, heavy metals are also introduced along with CO2 to the cultivation system which could contaminate biomass and have deleterious effects on products derived from such systems. The present study aimed at shedding some light on capability of microalgae to sustain their diversity and propagate them under different CO2 concentrations from coal-fired flue gas. Mixed microalgal culture was grown in nutrient rich medium and heavy metals (Al, Cu, Fe, Mn and Zn) are expected to be introduced from flue gas. Three concentrations (1%, 3% and 5.5%) of CO2 were evaluated (reference concentrations from flue gas). Comparative studies were carried out by flue gas and control systems in photobioreactors. Under the 3% CO2 (30% flue gas), the highest fraction of B, Mn and Zn were found to be internalized by the cells (46.8 ±9.45 gL-1, 253.66 ± 40.62 gL-1 and 355.5 ±50.69 gL-1 respectively) during their cultivation period into biomass. Hence, microalgae may offer solution to two major challenges: providing potential biofuel feedstock for energy security and reducing heavy metal pollution to the air.
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Affiliation(s)
- Ambreen Aslam
- Environmental Science Department, University of Lahore (UOL), Raiwind Road, Lahore, Pakistan; Algae Biotechnology Laboratory, School of Agriculture and Food Sciences, University of Queensland, Brisbane, Queensland 4072, Australia.
| | - Skye R Thomas-Hall
- Algae Biotechnology Laboratory, School of Agriculture and Food Sciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Tahira Mughal
- Environmental Science Department, Lahore College for Women University (LCWU), Lahore, Pakistan
| | - Qamar-Uz Zaman
- Environmental Science Department, University of Lahore (UOL), Raiwind Road, Lahore, Pakistan
| | - Nusrat Ehsan
- Environmental Science Department, University of Lahore (UOL), Raiwind Road, Lahore, Pakistan
| | - Sabiha Javied
- Environmental Science Department, University of Lahore (UOL), Raiwind Road, Lahore, Pakistan
| | - Peer M Schenk
- Algae Biotechnology Laboratory, School of Agriculture and Food Sciences, University of Queensland, Brisbane, Queensland 4072, Australia
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Du K, Wen X, Wang Z, Liang F, Luo L, Peng X, Xu Y, Geng Y, Li Y. Integrated lipid production, CO 2 fixation, and removal of SO 2 and NO from simulated flue gas by oleaginous Chlorella pyrenoidosa. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:16195-16209. [PMID: 30972683 DOI: 10.1007/s11356-019-04983-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
CO2, SO2, and NO are the main components of flue gas and can cause serious environmental issues. Utilization of these compounds in oleaginous microalgae cultivation not only could reduce air pollution but could also produce feedstock for biodiesel production. However, the continuous input of SO2 and NO inhibits microalgal growth. In this study, the toxicity of simulated flue gas (15% CO2, 0.03% SO2, and 0.03% NO, balanced with N2) was reduced through automatic pH feedback control. Integrated lipid production and CO2 fixation with the removal of SO2 and NO was achieved. Using this technique, a lipid content of 38.0% DW was achieved in Chlorella pyrenoidosa XQ-20044. The lipid composition and fatty acid profile indicated that lipid production by C. pyrenoidosa XQ-20044 cultured with flue gas is suitable as a biodiesel feedstock; 81.2% of the total lipids were neutral lipids and 99.5% of the total fatty acids were C16 and C18. The ratio of saturated fatty acids to monounsaturated fatty acids in the microalgal lipid content was 74.5%. In addition, CO2, SO2, and NO from the simulated flue gas were fixed and converted to biomass and lipids with a removal efficiency of 95.9%, 100%, and 84.2%, respectively. Furthermore, the utilization efficiencies of CO2, SO2, and NO were equal to or very close to their removal efficiencies. These results provide a novel strategy for combining biodiesel production with biofixation of flue gas.
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Affiliation(s)
- Kui Du
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China
- Sichuan Provincial Academy of Natural Resource Sciences, Chengdu, 610015, People's Republic of China
| | - Xiaobin Wen
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China
| | - Zhongjie Wang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China
| | - Fang Liang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China
- Institute of Bioengineering, Zhengzhou Normal University, Zhengzhou, 450044, People's Republic of China
| | - Liming Luo
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, 78703, USA
| | - Xinan Peng
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China
- College of Information Engineering, Henan University of Animal Husbandry and Economy, Zhengzhou, 450044, People's Republic of China
| | - Yan Xu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China
| | - Yahong Geng
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China
| | - Yeguang Li
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China.
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37
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Cheng D, Li X, Yuan Y, Yang C, Tang T, Zhao Q, Sun Y. Adaptive evolution and carbon dioxide fixation of Chlorella sp. in simulated flue gas. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 650:2931-2938. [PMID: 30373069 DOI: 10.1016/j.scitotenv.2018.10.070] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/05/2018] [Accepted: 10/05/2018] [Indexed: 06/08/2023]
Abstract
Carbon dioxide and other greenhouse gas emissions leads to global warming. Biological capture through microalgae is a potential approach for solving this environmental problem. It is still a technical challenge to enhance the tolerance of microalgae to flue gas if CO2 is fixed from flue gas directly. A new strain, Chlorella sp. Cv was obtained through adaptive evolution (46 cycles) against simulated flue gas (10% CO2, 200 ppm NOx and 100 ppm SOx). It was confirmed that Chlorella sp. Cv could tolerate simulated flue gas conditions and the maximum CO2 fixation rate was 1.2 g L-1 d-1. In a two-stage process, the biomass concentration was 2.7 g L-1 and the carbohydrate content was 68.4%. Comparative transcriptomic analysis was performed for Chlorella sp. Cv under simulated flue gas and control conditions (10% CO2). These responses against simulated flue gas uncovered the significant difference between the evolved strain and the original strain. The metabolic responses to flue gas were explored with focus on various specific genes. Upregulation of several genes related to photosynthesis, oxidative phosphorylation, CO2 fixation, sulfur metabolism and nitrogen metabolism was beneficial for the evolved strain to tolerate the simulated flue gas. The upregulation of genes related to extracellular sulfur transport and nitrate reductase was essential to utilize the sulfate and nitrate from dissolved SOx and NOx. The results in this study are helpful to establish a new process for CO2 capture directly from industrial flue gas.
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Affiliation(s)
- Dujia Cheng
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China; ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
| | - Xuyang Li
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China; School of Life Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Yizhong Yuan
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China; ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
| | - Chengyu Yang
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Tao Tang
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China
| | - Quanyu Zhao
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China; ShanghaiTech University, 100 Haike Road, Shanghai 201210, China; School of Pharmaceutical Science, Nanjing Tech University, 30 Puzhu South Road, Nanjing, China.
| | - Yuhan Sun
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China; ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
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Wang H, Nche-Fambo FA, Yu Z, Chen F. Using microalgal communities for high CO2-tolerant strain selection. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.08.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Park SH, Kyndt J, Chougule K, Park JJ, Brown JK. Low-phosphate-selected Auxenochlorella protothecoides redirects phosphate to essential pathways while producing more biomass. PLoS One 2018; 13:e0198953. [PMID: 29920531 PMCID: PMC6007911 DOI: 10.1371/journal.pone.0198953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 05/29/2018] [Indexed: 11/19/2022] Open
Abstract
Despite the capacity to accumulate ~70% w/w of lipids, commercially produced unicellular green alga A. protothecoides may become compromised due to the high cost of phosphate fertilizers. To address this limitation A. protothecoides was selected for adaptation to conditions of 100× and 5× lower phosphate and peptone, respectively, compared to 'wild-type media'. The A. protothecoides showed initial signs of adaptation by 45-50 days, and steady state growth at ~100 days. The low phosphate (P)-adapted strain produced up to ~30% greater biomass, while total lipids (~10% w/w) remained about the same, compared to the wild-type strain. Metabolomic analyses indicated that the low P-adapted produced 3.3-fold more saturated palmitic acid (16:0) and 2.2-fold less linolenic acid (18:3), compared to the wild-type strain, resulting in an ~11% increase in caloric value, from 19.5kJ/g for the wild-type strain to 21.6kJ/g for the low P-adapted strain, due to the amounts and composition of certain saturated fatty acids, compared to the wild type strain. Biochemical changes in A. protothecoides adapted to lower phosphate conditions were assessed by comparative RNA-Seq analysis, which yielded 27,279 transcripts. Among them, 2,667 and 15 genes were significantly down- and up-regulated, at >999-fold and >3-fold (adjusted p-value <0.1), respectively. The expression of genes encoding proteins involved in cellular processes such as division, growth, and membrane biosynthesis, showed a trend toward down-regulation. At the genomic level, synonymous SNPs and Indels were observed primarily in coding regions, with the 40S ribosomal subunit gene harboring substantial SNPs. Overall, the adapted strain out-performed the wild-type strain by prioritizing the use of its limited phosphate supply for essential biological processes. The low P-adapted A. protothecoides is expected to be more economical to grow over the wild-type strain, based on overall greater productivity and caloric content, while importantly, also requiring 100-fold less phosphate.
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Affiliation(s)
- Sang-Hyuck Park
- Department of Biology, Colorado State University, Pueblo, Colorado, United States of America
| | - John Kyndt
- College of Science and Technology, Bellevue University, Bellevue, Nebraska United States of America
| | - Kapeel Chougule
- Arizona Genomics Institute, The University of Arizona, Tucson, Arizona, United States of America
| | - Jeong-Jin Park
- Biomolecular Analysis Facility, University of Virginia, Charlottesville, Virginia, United States of America
| | - Judith K. Brown
- School of Plant Sciences, The University of Arizona, Tucson, Arizona, United States of America
- * E-mail:
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Oh YK, Hwang KR, Kim C, Kim JR, Lee JS. Recent developments and key barriers to advanced biofuels: A short review. BIORESOURCE TECHNOLOGY 2018. [PMID: 29523378 DOI: 10.1016/j.biortech.2018.02.089] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Biofuels are regarded as one of the most viable options for reduction of CO2 emissions in the transport sector. However, conventional plant-based biofuels (e.g., biodiesel, bioethanol)'s share of total transportation-fuel consumption in 2016 was very low, about 4%, due to several major limitations including shortage of raw materials, low CO2 mitigation effect, blending wall, and poor cost competitiveness. Advanced biofuels such as drop-in, microalgal, and electro biofuels, especially from inedible biomass, are considered to be a promising solution to the problem of how to cope with the growing biofuel demand. In this paper, recent developments in oxy-free hydrocarbon conversion via catalytic deoxygenation reactions, the selection of and lipid-content enhancement of oleaginous microalgae, electrochemical biofuel conversion, and the diversification of valuable products from biomass and intermediates are reviewed. The challenges and prospects for future development of eco-friendly and economically advanced biofuel production processes also are outlined herein.
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Affiliation(s)
- You-Kwan Oh
- School of Chemical and Biomolecular Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Kyung-Ran Hwang
- Biomass and Waste Energy Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
| | - Changman Kim
- School of Chemical and Biomolecular Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Jung Rae Kim
- School of Chemical and Biomolecular Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Jin-Suk Lee
- Gwangju Bioenergy R&D Center, Korea Institute of Energy Research, Gwangju 61003, Republic of Korea.
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41
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Hoyer J, Cotta F, Diete A, Großmann J. Bioenergy from Microalgae - Vision or Reality? CHEMBIOENG REVIEWS 2018. [DOI: 10.1002/cben.201800007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jan Hoyer
- GICON - Großmann Ingenieur Consult GmbH; Tiergartenstrasse 48 01219 Dresden Germany
| | - Fritz Cotta
- GICON - Großmann Ingenieur Consult GmbH; Tiergartenstrasse 48 01219 Dresden Germany
| | - Anja Diete
- GICON - Großmann Ingenieur Consult GmbH; Tiergartenstrasse 48 01219 Dresden Germany
| | - Jochen Großmann
- GICON - Großmann Ingenieur Consult GmbH; Tiergartenstrasse 48 01219 Dresden Germany
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Steam Explosion and Vibrating Membrane Filtration to Improve the Processing Cost of Microalgae Cell Disruption and Fractionation. Processes (Basel) 2018. [DOI: 10.3390/pr6040028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Li X, Yuan Y, Cheng D, Gao J, Kong L, Zhao Q, Wei W, Sun Y. Exploring stress tolerance mechanism of evolved freshwater strain Chlorella sp. S30 under 30 g/L salt. BIORESOURCE TECHNOLOGY 2018; 250:495-504. [PMID: 29197772 DOI: 10.1016/j.biortech.2017.11.072] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/17/2017] [Accepted: 11/22/2017] [Indexed: 05/10/2023]
Abstract
Enhancement of stress tolerance to high concentration of salt and CO2 is beneficial for CO2 capture by microalgae. Adaptive evolution was performed for improving the tolerance of a freshwater strain, Chlorella sp. AE10, to 30 g/L salt. A resulting strain denoted as Chlorella sp. S30 was obtained after 46 cycles (138 days). The stress tolerance mechanism was analyzed by comparative transcriptomic analysis. Although the evolved strain could tolerate 30 g/L salt, high salinity caused loss to photosynthesis, oxidative phosphorylation, fatty acid biosynthesis and tyrosine metabolism. The related genes of antioxidant enzymes, CO2 fixation, amino acid biosynthesis, central carbon metabolism and ABC transporter proteins were up-regulated. Besides the up-regulation of several genes in Calvin-Benson cycle, they were also identified in C4 photosynthetic pathway and crassulacean acid metabolism pathway. They were essential for the survival and CO2 fixation of Chlorella sp. S30 under 30 g/L salt and 10% CO2.
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Affiliation(s)
- Xuyang Li
- School of Life Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China; Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China
| | - Yizhong Yuan
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China; ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
| | - Dujia Cheng
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China; ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
| | - Juan Gao
- School of Life Science, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Lingzhao Kong
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China
| | - Quanyu Zhao
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China; ShanghaiTech University, 100 Haike Road, Shanghai 201210, China.
| | - Wei Wei
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China; ShanghaiTech University, 100 Haike Road, Shanghai 201210, China; Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yuhan Sun
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 99 Haike Road, Shanghai 201210, China; ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
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Mixed microalgae consortia growth under higher concentration of CO2 from unfiltered coal fired flue gas: Fatty acid profiling and biodiesel production. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 179:126-133. [DOI: 10.1016/j.jphotobiol.2018.01.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 12/19/2017] [Accepted: 01/08/2018] [Indexed: 11/21/2022]
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Hoyer J, Cotta F, Diete A, Großmann J. Bioenergie aus Mikroalgen - Vision oder Wirklichkeit? CHEM-ING-TECH 2017. [DOI: 10.1002/cite.201700085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jan Hoyer
- GICON - Großmann Ingenieur Consult GmbH; Greppiner Straße 6 06766 Bitterfeld-Wolfen Deutschland
| | - Fritz Cotta
- GICON - Großmann Ingenieur Consult GmbH; Greppiner Straße 6 06766 Bitterfeld-Wolfen Deutschland
| | - Anja Diete
- GICON - Großmann Ingenieur Consult GmbH; Greppiner Straße 6 06766 Bitterfeld-Wolfen Deutschland
| | - Jochen Großmann
- GICON - Großmann Ingenieur Consult GmbH; Tiergartenstraße 48 01219 Dresden Deutschland
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Can Microalgae Remove Pharmaceutical Contaminants from Water? Trends Biotechnol 2017; 36:30-44. [PMID: 28993012 DOI: 10.1016/j.tibtech.2017.09.003] [Citation(s) in RCA: 233] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 09/10/2017] [Accepted: 09/12/2017] [Indexed: 11/23/2022]
Abstract
The increase in worldwide water contamination with numerous pharmaceutical contaminants (PCs) has become an emerging environmental concern due to their considerable ecotoxicities and associated health issues. Microalgae-mediated bioremediation of PCs has recently gained scientific attention, as microalgal bioremediation is a solar-power driven, ecologically comprehensive, and sustainable reclamation strategy. In this review, we comprehensively describe the current research on the possible roles and applications of microalgae for removing PCs from aqueous media. We summarize several novel approaches including constructing microbial consortia, acclimation, and cometabolism for enhanced removal of PCs by microalgae, which would improve practical feasibility of these technologies. Some novel concepts for degrading PCs using integrated processes and genetic modifications to realize algal-based bioremediation technologies are also recommended.
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