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Silva TA, do Couto EDA, Assemany PP, Costa PAC, Marques PASS, Paradela F, Reis AJDD, Calijuri ML. Biofuel from wastewater-grown microalgae: A biorefinery approach using hydrothermal liquefaction and catalyst upgrading. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 368:122091. [PMID: 39116814 DOI: 10.1016/j.jenvman.2024.122091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 07/16/2024] [Accepted: 07/26/2024] [Indexed: 08/10/2024]
Abstract
Third-generation biofuels from microalgae are becoming necessary for sustainable energy. In this context, this study explores the hydrothermal liquefaction (HTL) of microalgae biomass grown in wastewater, consisting of 30% Chlorella vulgaris, 69% Tetradesmus obliquus, and 1% cyanobacteria Limnothrix planctonica, and the subsequent upgrading of the produced bio-oil. The novelty of the work lies in integrating microalgae cultivation in wastewater with HTL in a biorefinery approach, enhanced using a catalyst to upgrade the bio-oil. Different temperatures (300, 325, and 350 °C) and reaction times (15, 30, and 45 min) were tested. The bio-oil upgrading occurred with a Cobalt-Molybdenum (CoMo) catalyst for 1 h at 375 °C. Post-HTL, although the hydrogen-to-carbon (H/C) ratio decreased from 1.70 to 1.38-1.60, the oxygen-to-carbon (O/C) ratio also decreased from 0.39 to 0.079-0.104, and the higher heating value increased from 20.6 to 36.4-38.3 MJ kg-1. Palmitic acid was the main component in all bio-oil samples. The highest bio-oil yield was at 300 °C for 30 min (23.4%). Upgrading increased long-chain hydrocarbons like heptadecane (5%), indicating biofuel potential, though nitrogenous compounds such as hexadecanenitrile suggest a need for further hydrodenitrogenation. Aqueous phase, solid residues, and gas from HTL can be used for applications such as biomass cultivation, bio-hydrogen, valuable chemicals, and materials like carbon composites and cement additives, promoting a circular economy. The study underscores the potential of microalgae-derived bio-oil as sustainable biofuel, although further refinement is needed to meet current fuel standards.
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Affiliation(s)
- Thiago Abrantes Silva
- Department of Civil Engineering, Federal University of Vicosa (Universidade Federal de Vicosa/UFV), Av. Peter Henry Rolfs, s/n, Campus Universitario, Vicosa, Minas Gerais, 36570-900, Brazil.
| | - Eduardo de Aguiar do Couto
- Department of Water Resources and Sanitation, Federal University of Lavras (Universidade Federal de Lavras/UFLA), Campus Universitário, Lavras, Minas Gerais, 37200-900, Brazil.
| | - Paula Peixoto Assemany
- Department of Water Resources and Sanitation, Federal University of Lavras (Universidade Federal de Lavras/UFLA), Campus Universitário, Lavras, Minas Gerais, 37200-900, Brazil.
| | | | - Paula A S S Marques
- Bioenergy and Biorefineries Unit, National Laboratory of Energy and Geology (UBB/LNEG), Lisbon, Portugal.
| | - Filipe Paradela
- Bioenergy and Biorefineries Unit, National Laboratory of Energy and Geology (UBB/LNEG), Lisbon, Portugal.
| | | | - Maria Lucia Calijuri
- Department of Civil Engineering, Federal University of Vicosa (Universidade Federal de Vicosa/UFV), Av. Peter Henry Rolfs, s/n, Campus Universitario, Vicosa, Minas Gerais, 36570-900, Brazil.
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2
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Pereira ASADP, Silva TAD, Magalhães IB, Ferreira J, Braga MQ, Lorentz JF, Assemany PP, Couto EDAD, Calijuri ML. Biocompounds from wastewater-grown microalgae: a review of emerging cultivation and harvesting technologies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 920:170918. [PMID: 38354809 DOI: 10.1016/j.scitotenv.2024.170918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/22/2024] [Accepted: 02/10/2024] [Indexed: 02/16/2024]
Abstract
Microalgae biomass has attracted attention as a feedstock to produce biofuels, biofertilizers, and pigments. However, the high production cost associated with cultivation and separation stages is a challenge for the microalgae biotechnology application on a large scale. A promising approach to overcome the technical-economic limitations of microalgae production is using wastewater as a nutrient and water source for cultivation. This strategy reduces cultivation costs and contributes to valorizing sanitation resources. Therefore, this article presents a comprehensive literature review on the status of microalgae biomass cultivation in wastewater, focusing on production strategies and the accumulation of valuable compounds such as lipids, carbohydrates, proteins, fatty acids, and pigments. This review also covers emerging techniques for harvesting microalgae biomass cultivated in wastewater, discussing the advantages and limitations of the process, as well as pointing out the main research opportunities. The novelty of the study lies in providing a detailed analysis of state-of-the-art and potential advances in the cultivation and harvesting of microalgae, with a special focus on the use of wastewater and implementing innovative strategies to enhance productivity and the accumulation of compounds. In this context, the work aims to guide future research concerning emerging technologies in the field, emphasizing the importance of innovative approaches in cultivating and harvesting microalgae for advancing knowledge and practical applications in this area.
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Affiliation(s)
| | | | - Iara Barbosa Magalhães
- Federal University of Viçosa, Department of Civil Engineering, Viçosa, Minas Gerais, Brazil.
| | - Jessica Ferreira
- Federal University of Viçosa, Department of Civil Engineering, Viçosa, Minas Gerais, Brazil.
| | - Matheus Quintão Braga
- Federal University of Viçosa, Department of Civil Engineering, Viçosa, Minas Gerais, Brazil.
| | | | - Paula Peixoto Assemany
- Federal University of Lavras, Department of Environmental Engineering, Lavras, Minas Gerais, Brazil.
| | | | - Maria Lúcia Calijuri
- Federal University of Viçosa, Department of Civil Engineering, Viçosa, Minas Gerais, Brazil.
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3
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Macdonald Miller S, Abbriano RM, Herdean A, Banati R, Ralph PJ, Pernice M. Random mutagenesis of Phaeodactylum tricornutum using ultraviolet, chemical, and X-radiation demonstrates the need for temporal analysis of phenotype stability. Sci Rep 2023; 13:22385. [PMID: 38104215 PMCID: PMC10725415 DOI: 10.1038/s41598-023-45899-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 10/25/2023] [Indexed: 12/19/2023] Open
Abstract
We investigated two non-ionising mutagens in the form of ultraviolet radiation (UV) and ethyl methanosulfonate (EMS) and an ionising mutagen (X-ray) as methods to increase fucoxanthin content in the model diatom Phaeodactylum tricornutum. We implemented an ultra-high throughput method using fluorescence-activated cell sorting (FACS) and live culture spectral deconvolution for isolation and screening of potential pigment mutants, and assessed phenotype stability by measuring pigment content over 6 months using high-performance liquid chromatography (HPLC) to investigate the viability of long-term mutants. Both UV and EMS resulted in significantly higher fucoxanthin within the 6 month period after treatment, likely as a result of phenotype instability. A maximum fucoxanthin content of 135 ± 10% wild-type found in the EMS strain, a 35% increase. We found mutants generated using all methods underwent reversion to the wild-type phenotype within a 6 month time period. X-ray treatments produced a consistently unstable phenotype even at the maximum treatment of 1000 Grays, while a UV mutant and an EMS mutant reverted to wild-type after 4 months and 6 months, respectively, despite showing previously higher fucoxanthin than wild-type. This work provides new insights into key areas of microalgal biotechnology, by (i) demonstrating the use of an ionising mutagen (X-ray) on a biotechnologically relevant microalga, and by (ii) introducing temporal analysis of mutants which has substantial implications for strain creation and utility for industrial applications.
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Affiliation(s)
- Sean Macdonald Miller
- Faculty of Science, Climate Change Cluster (C3), University of Technology Sydney, Sydney, NSW, 2007, Australia.
| | - Raffaela M Abbriano
- Faculty of Science, Climate Change Cluster (C3), University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Andrei Herdean
- Faculty of Science, Climate Change Cluster (C3), University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Richard Banati
- Australian Nuclear Science and Technology Organisation (ANSTO), Kirrawee DC, NSW, 2232, Australia
- Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Peter J Ralph
- Faculty of Science, Climate Change Cluster (C3), University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Mathieu Pernice
- Faculty of Science, Climate Change Cluster (C3), University of Technology Sydney, Sydney, NSW, 2007, Australia
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4
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Aditya L, Vu HP, Abu Hasan Johir M, Mahlia TMI, Silitonga AS, Zhang X, Liu Q, Tra VT, Ngo HH, Nghiem LD. Role of culture solution pH in balancing CO 2 input and light intensity for maximising microalgae growth rate. CHEMOSPHERE 2023; 343:140255. [PMID: 37741367 DOI: 10.1016/j.chemosphere.2023.140255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/17/2023] [Accepted: 09/21/2023] [Indexed: 09/25/2023]
Abstract
The interplay between CO2 input and light intensity is investigated to provide new insight to optimise microalgae growth rate in photobioreactors for environmental remediation, carbon capture, and biomass production. Little is known about the combined effect of carbon metabolism and light intensity on microalgae growth. In this study, carbonated water was transferred to the microalgae culture at different rates and under different light intensities for observing the carbon composition and growth rate. Results from this study reveal opposing effects from CO2 input and light intensity on the culture solution pH and ultimately microalgae growth rate. Excessive CO2 concentration can inhibit microalgae growth due to acidification caused by CO2 dissolution. While increasing light intensity can increase pH because the carboxylation process consumes photons and transfers hydrogen ions into the cell. This reaction is catalysed by the enzyme RuBisCO, which functions optimally within a specific pH range. By balancing CO2 input and light intensity, high microalgae growth rate and carbon capture could be achieved. Under the intermittent CO2 transfer mode, at the optimal condition of 850 mg/L CO2 input and 1089 μmol/m2/s light intensity, leading to the highest microalgae growth rate and carbon fixation of 4.2 g/L as observed in this study.
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Affiliation(s)
- Lisa Aditya
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW, 2220, Australia
| | - Hang P Vu
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW, 2220, Australia
| | - Md Abu Hasan Johir
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW, 2220, Australia
| | - T M I Mahlia
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW, 2220, Australia
| | - A S Silitonga
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW, 2220, Australia
| | - Xiaolei Zhang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Qiang Liu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Van-Tung Tra
- Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam
| | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW, 2220, Australia
| | - Long D Nghiem
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW, 2220, Australia; Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam.
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5
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Leong WH, Lim JW, Rawindran H, Liew CS, Lam MK, Ho YC, Khoo KS, Kusakabe K, Abdelghani HTM, Ho CD, Ng HS, Usman A, Kang HS. Energy balance and life cycle assessments in producing microalgae biodiesel via a continuous microalgal-bacterial photobioreactor loaded with wastewater. CHEMOSPHERE 2023; 341:139953. [PMID: 37634592 DOI: 10.1016/j.chemosphere.2023.139953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/28/2023] [Accepted: 08/22/2023] [Indexed: 08/29/2023]
Abstract
Life cycle assessments of microalgal cultivation systems are often conducted to evaluate the sustainability and feasibility factors of the entire production chain. Unlike widely reported conventional microalgal cultivation systems, the present work adopted a microalgal-bacterial cultivation approach which was upscaled into a pilot-scale continuous photobioreactor for microalgal biomass production into biodiesel from wastewater resources. A multiple cradle-to-cradle system ranging from microalgal biomass-to-lipid-to-biodiesel was evaluated to provide insights into the energy demand of each processes making up the microalgae-to-biodiesel value chain system. Energy feasibility studies revealed positive NER values (4.95-8.38) for producing microalgal biomass but deficit values for microalgal-to-biodiesel (0.14-0.23), stemming from the high energy input requirements in the downstream processes for converting biomass into lipid and biodiesel accounting to 88-90% of the cumulative energy demand. Although the energy balance for microalgae-to-biodiesel is in the deficits, it is comparable with other reported biodiesel production case studies (0.12-0.40). Nevertheless, the approach to using microalgal-bacterial cultivation system has improved the overall energy efficiency especially in the upstream processes compared to conventional microalgal cultivation systems. Energy life cycle assessments with other microalgal based biofuel systems also proposed effective measures in increasing the energy feasibility either by utilizing the residual biomass and less energy demanding downstream extraction processes from microalgal biomass. The microalgal-bacterial cultivation system is anticipated to offer both environmental and economic prospects for upscaling by effectively exploiting the low-cost nutrients from wastewaters via bioconversion into valuable microalgal biomass and biodiesel.
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Affiliation(s)
- Wai Hong Leong
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia; Algal Bio Co. Ltd, Todai-Kashiwa Venture Plaza, 5-4-19 Kashiwanoha, Kashiwa, Chiba, 277-0082, Japan.
| | - Jun Wei Lim
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia; Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, 602105, India
| | - Hemamalini Rawindran
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Chin Seng Liew
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Man Kee Lam
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Chemical Engineering, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Yeek Chia Ho
- Centre for Urban Resource Sustainability, Institute of Self-Sustainable Building, Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan; Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam-603103, Tamil Nadu, India
| | - Katsuki Kusakabe
- Department of Nanoscience, Sojo University, Kumamoto, 860-0082, Japan
| | - Heba Taha M Abdelghani
- Department of Physiology of Physical Activity, College of Sport Sciences and Physical Activity, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Chii-Dong Ho
- Department of Chemical and Materials Engineering, Tamkang University, Tamsui, New Taipei, 251, Taiwan
| | - Hui-Suan Ng
- Centre for Research and Graduate Studies, University of Cyberjaya, Persiaran Bestari, 63000, Cyberjaya, Selangor, Malaysia
| | - Anwar Usman
- Department of Chemistry, Faculty of Science, Universiti Brunei Darussalam, Gadong, BE1410, Brunei
| | - Hooi-Siang Kang
- Marine Technology Center, Institute for Vehicle System & Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
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6
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Chaos-Hernández D, Reynel-Ávila HE, Bonilla-Petriciolet A, Villalobos-Delgado FJ. Extraction methods of algae oils for the production of third generation biofuels - A review. CHEMOSPHERE 2023; 341:139856. [PMID: 37598949 DOI: 10.1016/j.chemosphere.2023.139856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/19/2023] [Accepted: 08/15/2023] [Indexed: 08/22/2023]
Abstract
Microalgae are the main source of third-generation biofuels because they have a lipid content of 20-70%, can be abundantly produced and do not compete in the food market besides other benefits. Biofuel production from microalgae is a promising option to contribute for the resolution of the eminent crisis of fossil energy and environmental pollution specially in the transporting sector. The choice of lipid extraction method is of relevance and associated to the algae morphology (i.e., rigid cells). Therefore, it is essential to develop suitable extraction technologies for economically viable and environment-friendly lipid recovery processes with the aim of achieving a commercial production of biofuels from this biomass. This review presents an exhaustive analysis and discussion of different methods and processes of lipid extraction from microalgae for the subsequent conversion to biodiesel. Physical methods based on the use of supercritical fluids, ultrasound and microwaves were reviewed. Chemical methods using solvents with different polarities, aside from mechanical techniques such as mechanical pressure and enzymatic methods, were also analyzed. The advantages, drawbacks, challenges and future prospects of lipid extraction methods from microalgae have been summarized to provide a wide panorama of this relevant topic for the production of economic and sustainable energy worldwide.
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Affiliation(s)
- D Chaos-Hernández
- Instituto Tecnológico de Aguascalientes, Av. Adolfo López Mateos #1801, Aguascalientes, Ags., C.P. 20256, Mexico
| | - H E Reynel-Ávila
- Instituto Tecnológico de Aguascalientes, Av. Adolfo López Mateos #1801, Aguascalientes, Ags., C.P. 20256, Mexico; CONACYT, Av. Insurgentes 1582 Sur, Ciudad de México, 03940, Aguascalientes, Ags, Mexico.
| | - A Bonilla-Petriciolet
- Instituto Tecnológico de Aguascalientes, Av. Adolfo López Mateos #1801, Aguascalientes, Ags., C.P. 20256, Mexico
| | - F J Villalobos-Delgado
- Instituto Tecnológico de Aguascalientes, Av. Adolfo López Mateos #1801, Aguascalientes, Ags., C.P. 20256, Mexico
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7
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Leong WH, Rawindran H, Ameen F, Alam MM, Chai YH, Ho YC, Lam MK, Lim JW, Tong WY, Bashir MJK, Ravindran B, Alsufi NA. Advancements of microalgal upstream technologies: Bioengineering and application aspects in the paradigm of circular bioeconomy. CHEMOSPHERE 2023; 339:139699. [PMID: 37532206 DOI: 10.1016/j.chemosphere.2023.139699] [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: 04/12/2023] [Revised: 07/24/2023] [Accepted: 07/30/2023] [Indexed: 08/04/2023]
Abstract
Sustainable energy transition has brought the attention towards microalgae utilization as potential feedstock due to its tremendous capabilities over its predecessors for generating more energy with reduced carbon footprint. However, the commercialization of microalgae feedstock remains debatable due to the various factors and considerations taken into scaling-up the conventional microalgal upstream processes. This review provides a state-of-the-art assessment over the recent developments of available and existing microalgal upstream cultivation systems catered for maximum biomass production. The key growth parameters and main cultivation modes necessary for optimized microalgal growth conditions along with the fundamental aspects were also reviewed and evaluated comprehensively. In addition, the advancements and strategies towards potential scale-up of the microalgal cultivation technologies were highlighted to provide insights for further development into the upstream processes aimed at sustainable circular bioeconomy.
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Affiliation(s)
- Wai Hong Leong
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia; Algal Bio Co. Ltd, Todai-Kashiwa Venture Plaza, 5-4-19 Kashiwanoha, Kashiwa, Chiba, 277-0082, Japan.
| | - Hemamalini Rawindran
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Fuad Ameen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohammad Mahtab Alam
- Department of Basic Medical Sciences, College of Applied Medical Science, King Khalid University, Abha, 61421, Saudi Arabia
| | - Yee Ho Chai
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Chemical Engineering, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Yeek Chia Ho
- Centre for Urban Resource Sustainability, Institute of Self-Sustainable Building, Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Man Kee Lam
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Chemical Engineering, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Jun Wei Lim
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia; Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, 602105, India.
| | - Woei-Yenn Tong
- Universiti Kuala Lumpur, Institute of Medical Science Technology, A1-1, Jalan TKS 1, Taman Kajang Sentral, 43000, Kajang, Selangor, Malaysia
| | - Mohammed J K Bashir
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900, Kampar, Perak, Malaysia
| | - Balasubramani Ravindran
- Department of Environmental Energy & Engineering, Kyonggi University, Suwon-si, Gyeonggi-do, 16227, South Korea
| | - Nizar Abdallah Alsufi
- Department of Management Information System and Production Management, College of Business & Economics, Qassim University, P.O. BOX 6666, Buraydah, 51452, Saudi Arabia
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8
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Trung TS, Phuong PTD, Minh NC, Thuong NTN, Prinyawiwatkul W, Bao HND, Van Hoa N. Swollen-state preparation of chitosan lactate from moulted shrimp shells and its application for harvesting marine microalgae Nannochloropsis sp. Int J Biol Macromol 2023:125337. [PMID: 37307976 DOI: 10.1016/j.ijbiomac.2023.125337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 05/26/2023] [Accepted: 06/09/2023] [Indexed: 06/14/2023]
Abstract
Chitosan lactate (CSS) has been widely used for academic and industrial applications due to its biocompatibility, biodegradability, and high biological activity. Unlike chitosan, which is generally soluble only in acid solution, CSS can be directly used by dissolving in water. In this study, CSS was prepared from moulted shrimp chitosan at room temperature by a solid-state method. Chitosan was first swollen in a mixture of ethanol and water, making it more susceptible to reacting with lactic acid in the next step. As a result, the prepared CSS had a high solubility (over 99 %) and zeta potential (+ 99.3 mV) and was comparable to the commercial product. The preparation method of CSS is facile and efficient for a large-scale process. In addition, the prepared product exhibited a potential flocculant for harvesting Nannochloropsis sp., a marine microalga widely used as a popular food for larvae. In the best condition, the CSS solution (250 ppm) at pH 10 showed the highest recovery capacity (~ 90 % after 120 min) for harvesting Nannochloropsis sp. Besides, the harvested microalgal biomass showed excellent regeneration after 6 culture days. This paper's findings suggest a circular economy in aquaculture by producing value-added products from solid wastes, which can minimize the environmental impact and move towards sustainable zero-waste.
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Affiliation(s)
- Trang Si Trung
- Faculty of Food Technology, Nha Trang University, Viet Nam
| | | | | | | | - Witoon Prinyawiwatkul
- School of Nutrition and Food Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
| | | | - Nguyen Van Hoa
- Faculty of Food Technology, Nha Trang University, Viet Nam.
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Marangon BB, Magalhães IB, Pereira ASAP, Silva TA, Gama RCN, Ferreira J, Castro JS, Assis LR, Lorentz JF, Calijuri ML. Emerging microalgae-based biofuels: Technology, life-cycle and scale-up. CHEMOSPHERE 2023; 326:138447. [PMID: 36940833 DOI: 10.1016/j.chemosphere.2023.138447] [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: 11/16/2022] [Revised: 02/23/2023] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
Microalgae biomass is a versatile feedstock with a variable composition that can be submitted to several conversion routes. Considering the increasing energy demand and the context of third-generation biofuels, algae can fulfill the increasing global demand for energy with the additional benefit of environmental impact mitigation. While biodiesel and biogas are widely consolidated and reviewed, emerging algal-based biofuels such as biohydrogen, biokerosene, and biomethane are cutting-edge technologies in earlier stages of development. In this context, the present study covers their theoretical and practical conversion technologies, environmental hotspots, and cost-effectiveness. Scaling-up considerations are also addressed, mainly through Life Cycle Assessment results and interpretation. Discussions on the current literature for each biofuel directs researchers towards challenges such as optimized pretreatment methods for biohydrogen and optimized catalyst for biokerosene, besides encouraging pilot and industrial scale studies for all biofuels. While presenting studies for larger scales, biomethane still needs continuous operation results to consolidate the technology further. Additionally, environmental improvements on all three routes are discussed in light of life-cycle models, highlighting the ample research opportunities on wastewater-grown microalgae biomass.
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Affiliation(s)
- B B Marangon
- Department of Civil Engineering, Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - I B Magalhães
- Department of Civil Engineering, Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - A S A P Pereira
- Department of Civil Engineering, Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - T A Silva
- Department of Civil Engineering, Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - R C N Gama
- Department of Civil Engineering, Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - J Ferreira
- Department of Civil Engineering, Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - J S Castro
- Department of Civil Engineering, Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - L R Assis
- Department of Civil Engineering, Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - J F Lorentz
- Department of Civil Engineering, Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - M L Calijuri
- Department of Civil Engineering, Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
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10
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Mapelli-Brahm P, Gómez-Villegas P, Gonda ML, León-Vaz A, León R, Mildenberger J, Rebours C, Saravia V, Vero S, Vila E, Meléndez-Martínez AJ. Microalgae, Seaweeds and Aquatic Bacteria, Archaea, and Yeasts: Sources of Carotenoids with Potential Antioxidant and Anti-Inflammatory Health-Promoting Actions in the Sustainability Era. Mar Drugs 2023; 21:340. [PMID: 37367666 DOI: 10.3390/md21060340] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/25/2023] [Accepted: 05/27/2023] [Indexed: 06/28/2023] Open
Abstract
Carotenoids are a large group of health-promoting compounds used in many industrial sectors, such as foods, feeds, pharmaceuticals, cosmetics, nutraceuticals, and colorants. Considering the global population growth and environmental challenges, it is essential to find new sustainable sources of carotenoids beyond those obtained from agriculture. This review focuses on the potential use of marine archaea, bacteria, algae, and yeast as biological factories of carotenoids. A wide variety of carotenoids, including novel ones, were identified in these organisms. The role of carotenoids in marine organisms and their potential health-promoting actions have also been discussed. Marine organisms have a great capacity to synthesize a wide variety of carotenoids, which can be obtained in a renewable manner without depleting natural resources. Thus, it is concluded that they represent a key sustainable source of carotenoids that could help Europe achieve its Green Deal and Recovery Plan. Additionally, the lack of standards, clinical studies, and toxicity analysis reduces the use of marine organisms as sources of traditional and novel carotenoids. Therefore, further research on the processing of marine organisms, the biosynthetic pathways, extraction procedures, and examination of their content is needed to increase carotenoid productivity, document their safety, and decrease costs for their industrial implementation.
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Affiliation(s)
- Paula Mapelli-Brahm
- Food Colour and Quality Laboratory, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain
| | - Patricia Gómez-Villegas
- Laboratory of Biochemistry, Faculty of Experimental Sciences, Marine International Campus of Excellence and REMSMA, University of Huelva, 21071 Huelva, Spain
| | - Mariana Lourdes Gonda
- Área Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Gral Flores 2124, Montevideo 11800, Uruguay
| | - Antonio León-Vaz
- Laboratory of Biochemistry, Faculty of Experimental Sciences, Marine International Campus of Excellence and REMSMA, University of Huelva, 21071 Huelva, Spain
| | - Rosa León
- Laboratory of Biochemistry, Faculty of Experimental Sciences, Marine International Campus of Excellence and REMSMA, University of Huelva, 21071 Huelva, Spain
| | | | | | - Verónica Saravia
- Departamento de Bioingeniería, Facultad de Ingeniería, Instituto de Ingeniería Química, Universidad de la República, Montevideo 11300, Uruguay
| | - Silvana Vero
- Área Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Gral Flores 2124, Montevideo 11800, Uruguay
| | - Eugenia Vila
- Departamento de Bioingeniería, Facultad de Ingeniería, Instituto de Ingeniería Química, Universidad de la República, Montevideo 11300, Uruguay
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11
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Pereira ASADP, Magalhães IB, Ferreira J, Castro JDS, Calijuri ML. Microalgae organomineral fertilizer production: A life cycle approach. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.103035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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12
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Rosa RM, Machado M, Vaz MGMV, Lopes-Santos R, Nascimento AGD, Araújo WL, Nunes-Nesi A. Urea as a source of nitrogen and carbon leads to increased photosynthesis rates in Chlamydomonas reinhardtii under mixotrophy. J Biotechnol 2023; 367:20-30. [PMID: 36966923 DOI: 10.1016/j.jbiotec.2023.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 03/23/2023] [Indexed: 03/31/2023]
Abstract
Microalgae is a potential source of bioproducts, including feedstock to biofuels. Urea has been pointed as potential N source for microalgae growth. Considering that urea metabolism releases HCO3- to the medium, we tested the hypothesis that this carbon source could improve photosynthesis and consequently growth rates of Chlamydomonas reinhardtii. In this sense, the metabolic responses of C. reinhardtii grown with ammonium and urea as nitrogen sources under mixotrophic and autotrophic conditions were investigated. Overall, the mixotrophy led to increased cell growth as well as to a higher accumulation of lipids independent of N source, followed by a decrease in photosynthesis over the growth phases. In mixotrophy, urea stimulates growth in terms of cell number and dry weight. Furthermore, higher photosynthesis was verified in late logarithmic phase compared to ammonium. Under autotrophy conditions, although cell number and biomass were reduced, there was higher production of starch independent of N source. Nonetheless, urea-based autotrophic treatments stimulated biomass production compared to ammonium-based treatment. Under mixotrophy higher input of carbon into the cell from acetate and urea optimized photosynthesis and consequently promoted cell growth. Together, these results suggest urea as alternative source of carbon, improving photosynthesis and cell growth in C. reinhardtii.
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13
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Iglesias MJ, Soengas R, López-Ortiz F, Biondi N, Tredici MR, Gutiérrez-Del-Río I, López-Ibáñez S, Villar CJ, Lombó F, López Y, Gabasa Y, Soto S. Effect of culture conditions at lab-scale on metabolite composition and antibacterial and antibiofilm activities of Dunaliella tertiolecta. JOURNAL OF PHYCOLOGY 2023; 59:356-369. [PMID: 36690599 DOI: 10.1111/jpy.13316] [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: 09/30/2022] [Revised: 12/02/2022] [Accepted: 12/19/2022] [Indexed: 05/28/2023]
Abstract
Dunaliella tertiolecta RCC6 was cultivated indoors in glass bubble column photobioreactors operated under batch and semi-continuous regimens and using two different conditions of light and temperature. Biomass was harvested by centrifugation, frozen, and then lyophilized. The soluble material was obtained by sequential extraction of the lyophilized biomass with solvents with a gradient of polarity (hexane, ethyl acetate, and methanol) and its metabolic composition was investigated through nuclear magnetic resonance (NMR) spectroscopy. The effect of light on chlorophyll biosynthesis was clearly shown through the relative intensities of the 1 H NMR signals due to pheophytins. The highest signal intensity was observed for the biomasses obtained at lower light intensity, resulting in a lower light availability per cell. Under high temperature and light conditions, the 1 H NMR spectra of the hexane extracts showed an incipient accumulation of triacylglycerols. In these conditions and under semi-continuous regimen, an enhancement of β-carotene and sterols production was observed. The antibacterial and antibiofilm activities of the extracts were also tested. Antibacterial activity was not detected, regardless of culture conditions. In contrast, the minimal biofilm inhibitory concentrations (MBICs) against Escherichia coli for the hexane extract obtained under semi-continuous regimen using high temperature and irradiance conditions was promising.
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Affiliation(s)
- María José Iglesias
- Área de Química Orgánica, Research Centre CIAIMBITAL, Universidad de Almería, Almería, Spain
| | - Raquel Soengas
- Área de Química Orgánica, Research Centre CIAIMBITAL, Universidad de Almería, Almería, Spain
| | - Fernando López-Ortiz
- Área de Química Orgánica, Research Centre CIAIMBITAL, Universidad de Almería, Almería, Spain
| | - Natascia Biondi
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Florence, Italy
| | - Mario R Tredici
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Florence, Italy
| | - Ignacio Gutiérrez-Del-Río
- Área de Microbiología, Research Group BIONUC, Universidad de Oviedo, IUOPA (Instituto Universitario de Oncología del Principado de Asturias), ISPA (Instituto de Investigación Sanitaria del Principado de Asturias), Oviedo, Spain
| | - Sara López-Ibáñez
- Área de Microbiología, Research Group BIONUC, Universidad de Oviedo, IUOPA (Instituto Universitario de Oncología del Principado de Asturias), ISPA (Instituto de Investigación Sanitaria del Principado de Asturias), Oviedo, Spain
| | - Claudio J Villar
- Área de Microbiología, Research Group BIONUC, Universidad de Oviedo, IUOPA (Instituto Universitario de Oncología del Principado de Asturias), ISPA (Instituto de Investigación Sanitaria del Principado de Asturias), Oviedo, Spain
| | - Felipe Lombó
- Área de Microbiología, Research Group BIONUC, Universidad de Oviedo, IUOPA (Instituto Universitario de Oncología del Principado de Asturias), ISPA (Instituto de Investigación Sanitaria del Principado de Asturias), Oviedo, Spain
| | - Yuly López
- ISGlobal, Hospital Clínic-Universitat de Barcelona, Barcelona, Spain
| | - Yaiza Gabasa
- ISGlobal, Hospital Clínic-Universitat de Barcelona, Barcelona, Spain
| | - Sara Soto
- ISGlobal, Hospital Clínic-Universitat de Barcelona, Barcelona, Spain
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14
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Parmar P, Kumar R, Neha Y, Srivatsan V. Microalgae as next generation plant growth additives: Functions, applications, challenges and circular bioeconomy based solutions. FRONTIERS IN PLANT SCIENCE 2023; 14:1073546. [PMID: 37063190 PMCID: PMC10101342 DOI: 10.3389/fpls.2023.1073546] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/05/2023] [Indexed: 06/19/2023]
Abstract
Sustainable agriculture practices involve the application of environment-friendly plant growth promoters and additives that do not negatively impact the health of the ecosystem. Stringent regulatory frameworks restricting the use of synthetic agrochemicals and the increase in demand for organically grown crops have paved the way for the development of novel bio-based plant growth promoters. In this context, microalgae biomass and derived agrochemicals offer novel sources of plant growth promotors that enhance crop productivity and impart disease resistance. These beneficial effects could be attributed to the presence of wide range of biomolecules such as soluble amino acid (AA), micronutrients, polysaccharides, phytohormones and other signaling molecules in microalgae biomass. In addition, their phototrophic nature, high photosynthetic efficiency, and wide environmental adaptability make them an attractive source of biostimulants, biofertilizers and biopesticides. The present review aims to describe the various plant growth promoting metabolites produced by microalgae and their effects on plant growth and productivity. Further, the effects elicited by microalgae biostimulants with respect to different modes of applications such as seed treatments, foliar spray and soil/root drenching is reviewed in detail. In addition, the ability of microalgae metabolites to impart tolerance against various abiotic and biotic stressors along with the mechanism of action is discussed in this paper. Although the use of microalgae based biofertilizers and biostimulants is gaining popularity, the high nutrient and water requirements and energy intensive downstream processes makes microalgae based technology commercially unsustainable. Addressing this challenge, we propose a circular economy model of microalgae mediated bioremediation coupled with biorefinery approaches of generating high value metabolites along with biofertilizer applications. We discuss and review new trends in enhancing the sustainability of microalgae biomass production by co-cultivation of algae with hydroponics and utilization of agriculture effluents.
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Affiliation(s)
- Priyanka Parmar
- Applied Phycology and Food Technology Laboratory, Council of Scientific and Industrial Research (CSIR)- Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Council of Scientific and Industrial Research -Human Resource Development Centre (CSIR-HRDC), Ghaziabad, Uttar Pradesh, India
| | - Raman Kumar
- Applied Phycology and Food Technology Laboratory, Council of Scientific and Industrial Research (CSIR)- Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Council of Scientific and Industrial Research -Human Resource Development Centre (CSIR-HRDC), Ghaziabad, Uttar Pradesh, India
| | - Yograj Neha
- Applied Phycology and Food Technology Laboratory, Council of Scientific and Industrial Research (CSIR)- Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
| | - Vidyashankar Srivatsan
- Applied Phycology and Food Technology Laboratory, Council of Scientific and Industrial Research (CSIR)- Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Council of Scientific and Industrial Research -Human Resource Development Centre (CSIR-HRDC), Ghaziabad, Uttar Pradesh, India
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15
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İnan B, Mutlu B, Karaca GA, Koç RÇ, Özçimen D. Bioprospecting Antarctic Microalgae as Anticancer Agent Against PC-3 and AGS Cell Lines. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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16
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The Prospects of Algae-Derived Vitamins and Their Precursors for Sustainable Cosmeceuticals. Processes (Basel) 2023. [DOI: 10.3390/pr11020587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
Aquatic algae are a rich source of a wide range of bioproducts intended to compete for a sizable global market share. Thanks to the gradual shift towards the use of natural products, microalgae-derived bioactive compounds offer an ecofriendly and vegan option to the cosmeceutical sector, whose products aim to improve skin health but currently consist of mostly synthetic chemicals. In particular, algae-derived vitamins and their precursors are being explored and widely used in the cosmeceuticals industry as compounds that contain biologically active ingredients with therapeutic benefits. The present review highlights the current strategies for industrial production of an array of vitamins from algae for cosmeceutical applications. When compared to traditional plant sources, algae have been found to accumulate vitamins, such as A, B1, B2, B6, B12, C and E, in high concentrations. The purpose of this review is to provide context for the development of a green and sustainable algae-derived bioeconomy by summarizing and comparing the current market for vitamins and precursors derived from algae, as well as presenting novel strategies and key findings from the most recent research in this area. Emphasis is placed on novel biotechnological interventions that encompass genetic modifications, genetic engineering, and media development to enhance vitamin biosynthesis.
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17
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Gruber Z, Toth AJ, Menyhárd A, Mizsey P, Owsianiak M, Fozer D. Improving green hydrogen production from Chlorella vulgaris via formic acid-mediated hydrothermal carbonisation and neural network modelling. BIORESOURCE TECHNOLOGY 2022; 365:128071. [PMID: 36257525 DOI: 10.1016/j.biortech.2022.128071] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/29/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
This study investigates the formic acid-mediated hydrothermal carbonisation (HTC) of microalgae biomass to enhance green hydrogen production. The effects of combined severity factor (CSF) and feedstock-to-suspension ratio (FSR) are examined on HTC gas formation, hydrochar yield and quality, and composition of the liquid phase. The hydrothermal conversion of Chlorella vulgaris was investigated in a CSF and FSR range of -2.529 and 2.943; and 5.0 wt.% - 25.0 wt.%. Artificial neural networks (ANNs) were developed based on experimental data to model and analyse the HTC process. The results show that green hydrogen formation can be increased up to 3.04 mol kg-1 by applying CSF 2.433 and 12.5 wt.% FSR reaction conditions. The developed ANN model (BR-2-11-9-11) describes the hydrothermal process with high testing and training performance (MSEz = 1.71E-06 & 1.40E-06) and accuracy (R2 = 0.9974 & R2 = 0.9781). The enhanced H2 yield indicates an effective alternative green hydrogen production scenario at low temperatures using high-moisture-containing biomass feedstocks.
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Affiliation(s)
- Zita Gruber
- Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., Budapest, Hungary
| | - Andras Jozsef Toth
- Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., Budapest, Hungary
| | - Alfréd Menyhárd
- Department of Physical Chemistry and Materials Science, Laboratory of Plastics and Rubber Technology, Budapest University of Technology and Economics, H-1111 Budapest, Műegyetem rkp. 3. H. ép. I, Hungary
| | - Peter Mizsey
- Department of Fine Chemicals and Environmental Technology, University of Miskolc, Egyetem út, 3515 Miskolc, Hungary
| | - Mikołaj Owsianiak
- Department of Environmental and Resource Engineering, Quantitative Sustainability Assessment, Technical University of Denmark, Produktionstorvet, Building 424, DK-2800 Kgs. Lyngby, Denmark
| | - Daniel Fozer
- Department of Environmental and Resource Engineering, Quantitative Sustainability Assessment, Technical University of Denmark, Produktionstorvet, Building 424, DK-2800 Kgs. Lyngby, Denmark.
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18
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Lee JS, Sung YJ, Kim DH, Lee JY, Sim SJ. Development of a limitless scale-up photobioreactor for highly efficient photosynthesis-based polyhydroxybutyrate (PHB)-producing cyanobacteria. BIORESOURCE TECHNOLOGY 2022; 364:128121. [PMID: 36252756 DOI: 10.1016/j.biortech.2022.128121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/07/2022] [Accepted: 10/09/2022] [Indexed: 06/16/2023]
Abstract
Photosynthetic polyhydroxybutyrate (PHB) production is an attractive technology for realizing a sustainable society by simultaneously producing useful biodegradable plastics and mitigating CO2. It is necessary to establish an economical large-scale photobioreactor (PBR) capable of effectively cultivating photosynthetic microorganisms such as cyanobacteria. A roll-to-roll winding machine/heat-sealer hybrid system for fabricating an easy-to-scale-up PBR was developed in the present study. The baffle design was optimized to facilitate mass transfer within the PBR, and the operating conditions of the gas sparger were investigated to maximize the CO2 transfer efficiency. The newly developed PBR was able to produce biomass of PHB content 10.7 w/w% at a rate of 6.861 g m-2 d-1, 21 % improved biomass productivity compared with the existing PBR. It was confirmed that biomass productivity was maintained even when PBR was scaled up to 2 tons. Consequently, the newly developed PBR is expected to improve the feasibility of photosynthetic PHB production.
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Affiliation(s)
- Jeong Seop Lee
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Young Joon Sung
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea; Department of Chemical and Biological Engineering, Sookmyung Women's University, 100 Cheongpa-ro 47-gil, Yongsan-gu, Seoul, Republic of Korea
| | - Dong Hun Kim
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Ju Yeon Lee
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Sang Jun Sim
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea.
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