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Patnaik R, Kumar Bagchi S, Rawat I, Bux F. Nanotechnology for the enhancement of algal cultivation and bioprocessing: Bridging gaps and unlocking potential. BIORESOURCE TECHNOLOGY 2024; 406:131025. [PMID: 38914236 DOI: 10.1016/j.biortech.2024.131025] [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: 02/15/2024] [Revised: 06/20/2024] [Accepted: 06/22/2024] [Indexed: 06/26/2024]
Abstract
Algae cultivation and bioprocessing are important due to algae's potential to effectively tackle crucial environmental challenges like climate change, soil and water pollution, energy security, and food scarcity. To realize these benefits high algal biomass production and valuable compound extraction are necessary. Nanotechnology can significantly improve algal cultivation through enhanced nutrient uptake, catalysis, CO2 utilization, real-time monitoring, cost-effective harvesting, etc. Synthetic nanoparticles are extensively used due to ease of manufacturing and targeted application. Nonetheless, there is a growing interest in transitioning to environmentally friendly options like natural and 'green' nanoparticles which are produced from renewable/biological sources by using eco-friendly solvents. Presently, natural, and 'green' nanoparticles are predominantly utilized in algal harvesting, with limited application in other areas, the reasons for which remain unclear. This review aims to critically evaluate research on nanotechnology-based algae system enhancement, identify research gaps and propose solutions using natural and 'green' nanoparticles for a sustainable future.
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Affiliation(s)
- Reeza Patnaik
- Institute for Water and Wastewater Technology, Durban University of Technology, PO Box 1334, Durban 4000, South Africa
| | - Sourav Kumar Bagchi
- Institute for Water and Wastewater Technology, Durban University of Technology, PO Box 1334, Durban 4000, South Africa
| | - Ismail Rawat
- Institute for Water and Wastewater Technology, Durban University of Technology, PO Box 1334, Durban 4000, South Africa
| | - Faizal Bux
- Institute for Water and Wastewater Technology, Durban University of Technology, PO Box 1334, Durban 4000, South Africa.
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2
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Sumathi Y, Dong CD, Singhania RR, Chen CW, Gurunathan B, Patel AK. Advancements in Nano-Enhanced microalgae bioprocessing. BIORESOURCE TECHNOLOGY 2024; 401:130749. [PMID: 38679239 DOI: 10.1016/j.biortech.2024.130749] [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: 02/01/2024] [Revised: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024]
Abstract
Microalgae are promising sources of valuable compounds: carotenoids, polyunsaturated fatty acids, lipids, etc. To overcome the feasibility challenge due to low yield and attain commercial potential, researchers merge technologies to enhance algal bioprocess. In this context, nanomaterials are attractive for enhancing microalgal bioprocessing, from cultivation to downstream extraction. Nanomaterials enhance biomass and product yields (mainly lipid and carotenoids) through improved nutrient uptake and stress tolerance during cultivation. They also provide mechanistic insights from recent studies. They also revolutionize harvesting via nano-induced sedimentation, flocculation, and flotation. Downstream processing benefits from nanomaterials, improving extraction and purification. Special attention is given to cost-effective extraction, showcasing nanomaterial integration, and providing a comparative account. The review also profiles nanomaterial types, including metallic nanoparticles, magnetic nanomaterials, carbon-based nanomaterials, silica nanoparticles, polymers, and functionalized nanomaterials. Challenges and future trends are discussed, emphasizing nanomaterials' role in advancing sustainable and efficient microalgal bioprocessing, unlocking their potential for bio-based industries.
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Affiliation(s)
- Yamini Sumathi
- Institute of Aquatic Science and Technology, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Cheng-Di Dong
- Institute of Aquatic Science and Technology, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Reeta Rani Singhania
- Institute of Aquatic Science and Technology, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, Uttar Pradesh, India
| | - Chiu-Wen Chen
- Institute of Aquatic Science and Technology, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Baskar Gurunathan
- Department of Biotechnology, St. Joseph's College of Engineering, Chennai 600119, India
| | - Anil Kumar Patel
- Institute of Aquatic Science and Technology, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, Uttar Pradesh, India.
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Thevarajah B, Piyatilleke S, Nimarshana PHV, Koushalya S, Malik A, Ariyadasa TU. Exploring effective light spectral conversion techniques for enhanced production of Spirulina-derived blue pigment protein, c-phycocyanin. BIORESOURCE TECHNOLOGY 2024; 399:130612. [PMID: 38508281 DOI: 10.1016/j.biortech.2024.130612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/16/2024] [Accepted: 03/17/2024] [Indexed: 03/22/2024]
Abstract
Spirulina is a promising feedstock for c-phycocyanin, a blue pigment-protein, commercially incorporated in many food products for its desirable bright blue attributes, exceptional bioavailability, and inherent therapeutic properties. Remarkably, enhancing c-phycocyanin synthesis in Spirulina would facilitate economic viability and sustainability at large-scale production, as the forecasted market value is $ 409.8 million by 2030. Notably, the lighting source plays a key role in enhancing c-phycocyanin in Spirulina, and thus, strategies to filter/concentrate the photons of respective wavelengths, influencing light spectra, are beneficial. Enveloping open raceway ponds and greenhouses by luminescent solar concentrators and light filtering sheets enables solar spectral conversion of the sunlight at desirable wavelengths, emerges as a promising strategy to enhance synthesis of c-phycocyanin in Spirulina. Nevertheless, the conduction of techno-economic assessments and evaluation of scalability at large-scale cultivation of Spirulina are essential for the real-time implementation of lighting strategies.
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Affiliation(s)
- Bavatharny Thevarajah
- Department of Chemical and Process Engineering, Faculty of Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
| | - Sajani Piyatilleke
- Department of Chemical and Process Engineering, Faculty of Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
| | - P H V Nimarshana
- Department of Mechanical Engineering, Faculty of Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
| | - S Koushalya
- Applied Microbiology Laboratory, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Anushree Malik
- Applied Microbiology Laboratory, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Thilini U Ariyadasa
- Department of Chemical and Process Engineering, Faculty of Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka.
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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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Xin Y, Wu S, Miao C, Xu T, Lu Y. Towards Lipid from Microalgae: Products, Biosynthesis, and Genetic Engineering. Life (Basel) 2024; 14:447. [PMID: 38672718 PMCID: PMC11051065 DOI: 10.3390/life14040447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/27/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
Microalgae can convert carbon dioxide into organic matter through photosynthesis. Thus, they are considered as an environment-friendly and efficient cell chassis for biologically active metabolites. Microalgal lipids are a class of organic compounds that can be used as raw materials for food, feed, cosmetics, healthcare products, bioenergy, etc., with tremendous potential for commercialization. In this review, we summarized the commercial lipid products from eukaryotic microalgae, and updated the mechanisms of lipid synthesis in microalgae. Moreover, we reviewed the enhancement of lipids, triglycerides, polyunsaturated fatty acids, pigments, and terpenes in microalgae via environmental induction and/or metabolic engineering in the past five years. Collectively, we provided a comprehensive overview of the products, biosynthesis, induced strategies and genetic engineering in microalgal lipids. Meanwhile, the outlook has been presented for the development of microalgal lipids industries, emphasizing the significance of the accurate analysis of lipid bioactivity, as well as the high-throughput screening of microalgae with specific lipids.
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Affiliation(s)
- Yi Xin
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Marine Life and Aquaculture, Hainan University, Haikou 570228, China; (S.W.); (C.M.); (T.X.)
- Haikou Technology Innovation Center for Research and Utilization of Algal Bioresources, Hainan University, Haikou 570228, China
| | - Shan Wu
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Marine Life and Aquaculture, Hainan University, Haikou 570228, China; (S.W.); (C.M.); (T.X.)
| | - Congcong Miao
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Marine Life and Aquaculture, Hainan University, Haikou 570228, China; (S.W.); (C.M.); (T.X.)
| | - Tao Xu
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Marine Life and Aquaculture, Hainan University, Haikou 570228, China; (S.W.); (C.M.); (T.X.)
| | - Yandu Lu
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Marine Life and Aquaculture, Hainan University, Haikou 570228, China; (S.W.); (C.M.); (T.X.)
- Haikou Technology Innovation Center for Research and Utilization of Algal Bioresources, Hainan University, Haikou 570228, China
- Hainan Provincial Key Laboratory of Tropical Hydrobiotechnology, Hainan University, Haikou 570228, China
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6
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Purba LDA, Susanti H, Admirasari R, Praharyawan S, Taufikurahman, Iwamoto K. Bibliometric insights into microalgae cultivation in wastewater: Trends and future prospects for biolipid production and environmental sustainability. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 352:120104. [PMID: 38242026 DOI: 10.1016/j.jenvman.2024.120104] [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: 09/13/2023] [Revised: 12/01/2023] [Accepted: 01/11/2024] [Indexed: 01/21/2024]
Abstract
Cultivation of microalgae in wastewater stream has been extensively reported, especially for simultaneous production of biolipid and wastewater treatment process. This study aimed to derive the research trend and focus on biolipid production from microalgae cultivated in wastewater by using bibliometric approach. The search strategy used in Scopus database resulted in 1339 research articles from 1990 to November 2023. Majority of publications (46%) were affiliated to China and India, showing their predominance in this field. Keywords related to the center of attention included biodiesel, biofuel, biomass and nutrient removal. Meanwhile, keyword with recent publication year, indicating the emerging research trends, revolved around the cultivation techniques and application of the system. Co-culture involving more than one microalgae species, bacteria and yeast showed promising results, while addition of nanoparticles was also found to be beneficial. Increasing exploration on the application of microalgae for treatment of saline wastewater was also reported and the carbon fixation mechanism by microalgae has been widely investigated to promote less environmental impact. Future research on these topics were suggested based on the findings of the bibliometric analyses.
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Affiliation(s)
- Laila Dina Amalia Purba
- Research Center for Applied Microbiology, National Research and Innovation Agency (BRIN), Cibinong, 16911, West Java, Indonesia.
| | - Hani Susanti
- Research Center for Applied Microbiology, National Research and Innovation Agency (BRIN), Cibinong, 16911, West Java, Indonesia
| | - Rahmania Admirasari
- Research Center for Applied Microbiology, National Research and Innovation Agency (BRIN), Cibinong, 16911, West Java, Indonesia
| | - Swastika Praharyawan
- Research Center for Applied Microbiology, National Research and Innovation Agency (BRIN), Cibinong, 16911, West Java, Indonesia
| | - Taufikurahman
- School of Life Science and Technology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung, 40132, Indonesia
| | - Koji Iwamoto
- Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur, 54100, Malaysia
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7
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Akbari S, Zabihollahi S, Yaqoubnejad P, Palandi ZK, Taghavijeloudar M. Insight into the roles of hematite iron oxide nanoparticles on microalgae growth, urban wastewater treatment and bioproducts generation: Gompertz simulation, nutrient mass balance and gene expression. BIORESOURCE TECHNOLOGY 2024; 394:130300. [PMID: 38185445 DOI: 10.1016/j.biortech.2024.130300] [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: 11/30/2023] [Revised: 01/01/2024] [Accepted: 01/03/2024] [Indexed: 01/09/2024]
Abstract
In this study, the effect of α-Fe2O3 nanoparticles spiking in urban wastewater (UWW) on growth rate, wastewater treatment ability and bioproducts generation of C. vulgaris and Spirulina was investigated and compared with pure cultivation system. The biomass concentration of C. vulgaris and Spirulina improved by 20 % and 39 % at 10 and 15 mg/L α-Fe2O3, respectively while the both microalgae growth pattern fitted better with Gompertz simulation after treatment with α-Fe2O3. The nutrients mass balance revealed that 1 g of treated C. vulgaris and Spirulina could uptake more COD, TN and TP in comparison to the untreated cells. The lipid generation increased remarkably (C. vulgaris: 45 % and Spirulina: 72 %) after α-Fe2O3 treatment. While, the addition of α-Fe2O3 showed no significant impact on the protein and carbohydrate productivity. Overall, this study evangelize the role of nanoparticles on promoting microalgae applications as a sustainable approach for UWW treatment and promising feedstock for biofuel production.
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Affiliation(s)
- Sara Akbari
- Department of Environmental Engineering, Faculty of Civil Engineering, Babol Noshirvani University of Technology, 47148-7313 Babol, Iran
| | - Shaghayegh Zabihollahi
- Faculty of Cellular Molecular Biology, University of Mazandradn, 47148-71167 Babolsar, Iran
| | - Poone Yaqoubnejad
- Department of Environmental Engineering, Faculty of Civil Engineering, Babol Noshirvani University of Technology, 47148-7313 Babol, Iran
| | - Zahra Khodabakhshi Palandi
- Department of Environmental Engineering, Faculty of Civil Engineering, Babol Noshirvani University of Technology, 47148-7313 Babol, Iran
| | - Mohsen Taghavijeloudar
- Department of Civil and Environmental Engineering, Seoul National University, 151-744 Seoul, South Korea.
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Jiang J, Cai X, Ren H, Cao G, Meng J, Xing D, Vollertsen J, Liu B. Effects of polyethylene terephthalate microplastics on cell growth, intracellular products and oxidative stress of Scenedesmus sp. CHEMOSPHERE 2024; 348:140760. [PMID: 37989440 DOI: 10.1016/j.chemosphere.2023.140760] [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: 06/28/2023] [Revised: 10/23/2023] [Accepted: 11/17/2023] [Indexed: 11/23/2023]
Abstract
Polyethylene terephthalate (PET) has been widely utilized in the synthesis of textile materials and packaging of foods and beverages. In recent years, it has been commonly detected in the form of microplastics (MPs) in wastewater. However, the effects of PET MPs on microalgal intracellular products and their interrelationships have been poorly investigated. In this study, the microalgae Scenedesmus sp. Strain H-1 was exposed to PET MPs to explore their effects on the growth, intracellular products (such as lipids, carbohydrates, and proteins), and antioxidative defense systems of Scenedesmus sp. The results demonstrated that PET MPs significantly reduced Scenedesmus sp. cell growth, with a maximum inhibition rate of 38.25% in the 500 mg L-1 treatment group. PET MPs had negative effects on glucose and nitrate utilization rates and reduced intracellular carbohydrates, intracellular proteins, and photosynthetic pigments. Surprisingly, PET MPs reduced acetyl-CoA carboxylase activity but induced lipid accumulation in microalgae. In addition, PET MPs significantly decreased the essential linoleic acid concentration and increased the palmitic acid content, resulting in reduced biodiesel quality. PET MPs induced the production of reactive oxygen species and malondialdehyde as well as the activities of superoxide dismutase and catalase. The results of the PCA indicated that the response mechanism of Scenedesmus sp. to PET MPs exposure was synergistic. This study provides fundamental data on the impact of MPs on the intracellular products of microalgae.
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Affiliation(s)
- Jiahui Jiang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Huanghe Road 73, Harbin 150090, China
| | - Xiaoyu Cai
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Huanghe Road 73, Harbin 150090, China
| | - Hongyu Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Huanghe Road 73, Harbin 150090, China
| | - Guangli Cao
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Huanghe Road 73, Harbin 150090, China
| | - Jia Meng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Huanghe Road 73, Harbin 150090, China
| | - Defeng Xing
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Huanghe Road 73, Harbin 150090, China
| | - Jes Vollertsen
- Department of the Built Environment, Aalborg University, Thomas Manns Vej 23, Aalborg Øst 9220, Denmark
| | - Bingfeng Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Huanghe Road 73, Harbin 150090, China.
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Sheikh ZUD, Bajar S, Devi A, Rose PK, Suhag M, Yadav A, Yadav DK, Deswal T, Kaur J, Kothari R, Pathania D, Rani N, Singh A. Nanotechnology based technological development in biofuel production: Current status and future prospects. Enzyme Microb Technol 2023; 171:110304. [PMID: 37639935 DOI: 10.1016/j.enzmictec.2023.110304] [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: 12/20/2022] [Revised: 07/11/2023] [Accepted: 08/05/2023] [Indexed: 08/31/2023]
Abstract
Depleting fossil fuels and net carbon emissions associated with their burning have driven the need to find alternative energy sources. Biofuels are near-perfect candidates for alternative energy sources as they are renewable and account for no net CO2 emissions. However, biofuel production must overcome various challenges to compete with conventional fuels. Conventional methods for bioconversion of biomass to biofuel include chemical, thermochemical, and biological processes. Substrate selection and processing, low yield, and total cost of production are some of the main issues associated with biofuel generation. Recently, the uses of nanotechnology and nanoparticles have been explored to improve the biofuel production processes because of their high adsorption, high reactivity, and catalytic properties. The role of these nanoscale particles and nanocatalysts in biomass conversion and their effect on biofuel production processes and yield are discussed in the present article. The applicability of nanotechnology in production processes of biobutanol, bioethanol, biodiesel, biohydrogen, and biogas under biorefinery approach are presented. Different types of nanoparticles, and their function in the bioprocess, such as electron transfer, pretreatment, hydrolysis, microalgae cultivation, lipid extraction, dark and photo fermentation, immobilization, and suppression of inhibitory compounds, are also highlighted. Finally, the current and potential applications of nanotechnology in biorefineries are also discussed.
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Affiliation(s)
- Zaheer Ud Din Sheikh
- Department of Environmental Sciences, Central University of Jammu, Samba, 181143, Jammu and Kashmir, India
| | - Somvir Bajar
- Department of Environmental Science and Engineering, J.C. Bose University of Science and Technology, YMCA, Faridabad, 121006, Haryana, India
| | - Arti Devi
- Department of Environmental Sciences, Central University of Jammu, Samba, 181143, Jammu and Kashmir, India
| | - Pawan Kumar Rose
- Department of Energy and Environmental Sciences, Chaudhary Devi Lal University, Sirsa, 125055, Haryana, India
| | - Meenakshi Suhag
- Institute of Environmental Studies, Kurukshetra University, Kurukshetra, India
| | - Arti Yadav
- Department of Environmental Science & Engineering, Guru Jambheshwar University of Science & Technology, Hisar, 125001, Haryana, India
| | - Deepak Kumar Yadav
- Department of Environmental Science & Engineering, Guru Jambheshwar University of Science & Technology, Hisar, 125001, Haryana, India
| | - Tanuj Deswal
- Department of Nano Science and Materials, Central University of Jammu, Samba, 181143, Jammu and Kashmir, India
| | - Japleen Kaur
- Department of Environmental Sciences, Central University of Jammu, Samba, 181143, Jammu and Kashmir, India
| | - Richa Kothari
- Department of Environmental Sciences, Central University of Jammu, Samba, 181143, Jammu and Kashmir, India
| | - Deepak Pathania
- Department of Environmental Sciences, Central University of Jammu, Samba, 181143, Jammu and Kashmir, India
| | - Neeta Rani
- Department of National Security Studies, Central University of Jammu, Samba, 181143, Jammu and Kashmir, India
| | - Anita Singh
- Department of Environmental Sciences, Central University of Jammu, Samba, 181143, Jammu and Kashmir, India; Department of Environmental Studies, Central University of Haryana, Jant-Pali, Mahendergarh, 12331, Haryana, India.
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10
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Kumar S, Tripathi A, Chakraborty I, Ghangrekar MM. Engineered nanomaterials for carbon capture and bioenergy production in microbial electrochemical technologies: A review. BIORESOURCE TECHNOLOGY 2023; 389:129809. [PMID: 37797801 DOI: 10.1016/j.biortech.2023.129809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/27/2023] [Accepted: 09/27/2023] [Indexed: 10/07/2023]
Abstract
The mounting threat of global warming, fuelled by industrialization and anthropogenic activities, is undeniable. In 2017, atmospheric carbon dioxide (CO2), the primary greenhouse gas, exceeded 410 ppm for the first time. Shockingly, on April 28, 2023, this figure surged even higher, reaching an alarming 425 ppm. Even though extensive research has been conducted on developing efficient carbon capture and storage technologies, most suffer from high costs, short lifespans, and significant environmental impacts. Recently, the use of engineered nanomaterials (ENM), particularly in microbial electrochemical technologies (METs), has gained momentum owing to their appropriate physicochemical properties and catalytic activity. By implementing ENM, the MET variants like microbial electrosynthesis (MES) and photosynthetic microbial fuel cells (pMFC) can enhance carbon capture efficiency with simultaneous bioenergy production and wastewater treatment. This review provides an overview of ENMs' role in carbon capture within MES and pMFC, highlighting advancements and charting future research directions.
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Affiliation(s)
- Santosh Kumar
- P. K. Sinha Centre for Bioenergy and Renewables, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Akash Tripathi
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Indrajit Chakraborty
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Makarand M Ghangrekar
- P. K. Sinha Centre for Bioenergy and Renewables, Indian Institute of Technology Kharagpur, Kharagpur 721302, India; Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
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11
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Yuan X, Gao X, Liu C, Liang W, Xue H, Li Z, Jin H. Application of Nanomaterials in the Production of Biomolecules in Microalgae: A Review. Mar Drugs 2023; 21:594. [PMID: 37999418 PMCID: PMC10672109 DOI: 10.3390/md21110594] [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: 10/22/2023] [Revised: 11/14/2023] [Accepted: 11/14/2023] [Indexed: 11/25/2023] Open
Abstract
Nanomaterials (NMs) are becoming more commonly used in microalgal biotechnology to empower the production of algal biomass and valuable metabolites, such as lipids, proteins, and exopolysaccharides. It provides an effective and promising supplement to the existing algal biotechnology. In this review, the potential for NMs to enhance microalgal growth by improving photosynthetic utilization efficiency and removing reactive oxygen species is first summarized. Then, their positive roles in accumulation, bioactivity modification, and extraction of valuable microalgal metabolites are presented. After the application of NMs in microalgae cultivation, the extracted metabolites, particularly exopolysaccharides, contain trace amounts of NM residues, and thus, the impact of these residues on the functional properties of the metabolites is also evaluated. Finally, the methods for removing NM residues from the extracted metabolites are summarized. This review provides insights into the application of nanotechnology for sustainable production of valuable metabolites in microalgae and will contribute useful information for ongoing and future practice.
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Affiliation(s)
- Xiaolong Yuan
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (X.Y.); (C.L.); (W.L.); (H.X.); (Z.L.)
| | - Xiang Gao
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (X.Y.); (C.L.); (W.L.); (H.X.); (Z.L.)
| | - Chang Liu
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (X.Y.); (C.L.); (W.L.); (H.X.); (Z.L.)
| | - Wensheng Liang
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (X.Y.); (C.L.); (W.L.); (H.X.); (Z.L.)
| | - Huidan Xue
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (X.Y.); (C.L.); (W.L.); (H.X.); (Z.L.)
| | - Zhengke Li
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China; (X.Y.); (C.L.); (W.L.); (H.X.); (Z.L.)
| | - Haojie Jin
- The College of Forestry, Beijing Forestry University, Beijing 100083, China;
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12
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Shi Z, Tan X, Li Y, Sheng Y, Zhang Q, Xu J, Yang Y. A novel fungal-algal coupling system for slaughterhouse wastewater treatment and lipid production. BIORESOURCE TECHNOLOGY 2023; 387:129585. [PMID: 37517707 DOI: 10.1016/j.biortech.2023.129585] [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: 06/30/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/01/2023]
Abstract
In this study, a novel fungal-algal coupling system was established for slaughterhouse wastewater treatment with Chlorella sp. DT025 and a new fungus, Penicillium sp. AHP141. With the optimization of cultivation conditions for the fungal-algal coupling system, the harvest efficiency of Chlorella sp. DT025 reached 99.79%. The mechanism of microalgae harvest of the fungal-algal system was revealed to be related to the morphological characteristics, surface charge, and the secretion of humic acid-like compounds and tryptophan on the surface of the fungi cells. For the original slaughterhouse wastewater treatment, the fungal-algal coupling system had a better removal efficiency of COD, TN, and TP than both monoculture systems. In the high-concentration artificial slaughterhouse wastewater, COD removal of the fungal-algal system reached more than 5350 mg/L. The lipid production of the fungal-algal coupling system in the high-concentration artificial slaughterhouse wastewater treatment was improved by 343.33% to 1.33 g/L compared to the microalgae monoculture treatment.
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Affiliation(s)
- Zhengsheng Shi
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Xin Tan
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China; Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Yanbin Li
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China; Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Yequan Sheng
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China; Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Qin Zhang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China; Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Jialu Xu
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Yong Yang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
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13
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Bisht B, Jaiswal KK, Parveen A, Kumar S, Verma M, Kim H, Vlaskin MS, Singh N, Kumar V. A phyco-nanobionics biohybrid system for increased carotenoid accumulation in C. sorokiniana UUIND6. J Mater Chem B 2023; 11:7466-7477. [PMID: 37449368 DOI: 10.1039/d3tb00960b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Recent advancements in "phyco-nanobionics" have sparked considerable interest in the ability of microalgae to synthesize high-value natural bioactive compounds such as carotenoid pigments, which have been highlighted as an emergent and vital bioactive compound from both industrial and scientific perspectives. Such bioactive compounds are often synthesized by either altering the biogenetic processes existing in living microorganisms or using synthetic techniques derived from petroleum-based chemical sources. A bio-hybrid light-driven cell factory system was established herein by using harmful macroalgal bloom extract (HMBE) and efficient light-harvesting silver nanoparticles (AgNPs) to synthesize HMBE-AgNPs and integrating the synthesized HMBE-AgNPs in various concentrations (1, 2.5, 5 and 10 ppm) into the microalgae C. sorokiniana UUIND6 to improve the overall solar-to-chemical conversion efficiency in carotenoid pigment synthesis in microalgae. The current study findings found high biocompatibility of 5 ppm HMBE-AgNP concentration that can serve as a built-in photo-sensitizer and significantly improve ROS levels in microalgae (6.75 ± 0.25 μmol H2O2 g-1), thus elevating total photosynthesis resulting in a two-fold increase in carotenoids (457.5 ± 2.5 μg mL-1) over the native microalgae without compromising biomass yield. NMR spectroscopy was additionally applied to acquire a better understanding of pure carotenoids derived from microalgae, which indicated similar peaks in both spectra when compared to β-carotene. Thus, this well-planned bio-hybrid system offers a potential option for the cost-effective and long-term supply of these natural carotenoid bio-products.
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Affiliation(s)
- Bhawna Bisht
- Algal Research and Bioenergy Laboratory, Department of Food Science and Technology, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, 248002, India
| | - Krishna Kumar Jaiswal
- Bioprocess Engineering Laboratory, Department of Green Energy Technology, Pondicherry University, Puducherry, 605014, India
| | - Afreen Parveen
- Algal Research and Bioenergy Laboratory, Department of Food Science and Technology, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, 248002, India
| | - Sanjay Kumar
- Algal Research and Bioenergy Laboratory, Department of Food Science and Technology, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, 248002, India
| | - Monu Verma
- Water-Energy Nexus Laboratory, Department of Environmental Engineering, University of Seoul, Seoul, 02504, Republic of Korea
| | - Hyunook Kim
- Water-Energy Nexus Laboratory, Department of Environmental Engineering, University of Seoul, Seoul, 02504, Republic of Korea
| | - Mikhail S Vlaskin
- Joint Institute for High Temperatures of the Russian Academy of Sciences, Moscow, 117198, Russian Federation
| | - Narpinder Singh
- Algal Research and Bioenergy Laboratory, Department of Food Science and Technology, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, 248002, India
| | - Vinod Kumar
- Algal Research and Bioenergy Laboratory, Department of Food Science and Technology, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, 248002, India
- Peoples' Friendship University of Russia (RUDN University), Moscow, 117198, Russian Federation.
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14
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Tan KY, Low SS, Manickam S, Ma Z, Banat F, Munawaroh HSH, Show PL. Prospects of microalgae in nutraceuticals production with nanotechnology applications. Food Res Int 2023; 169:112870. [PMID: 37254319 DOI: 10.1016/j.foodres.2023.112870] [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: 12/30/2022] [Revised: 04/06/2023] [Accepted: 04/18/2023] [Indexed: 06/01/2023]
Abstract
Nutraceutical supplements provide health benefits, such as fulfilling the lack of nutrients in the human body or being utilized to treat or cure certain diseases. As the world population is growing, certain countries are experiencing food crisis challenges, causing natural foods are not sustainable to be used for nutraceutical production because it will require large-scale of food supply to produce enriched nutraceutics. The high demand for abundant nutritional compounds has made microalgae a reliable source as they can synthesize high-value molecules through photosynthetic activities. However, some microalgae species are limited in growth and unable to accumulate a significant amount of biomass due to several factors related to environmental conditions. Therefore, adding nanoparticles (NPs) as a photocatalyst is considered to enhance the yield rate of microalgae in an energy-saving and economical way. This review focuses on the composition of microalgal biomass for nutraceutical production, the health perspectives of nutritional compounds on humans, and the application of nanotechnology on microalgae for improved production and harvesting. The results obtained show that microalgal-based compounds indeed have better nutrients content than natural foods. However, nanotechnology must be further comprehended to make them non-hazardous and sustainable.
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Affiliation(s)
- Kai Yao Tan
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - Sze Shin Low
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo 315100 China.
| | - Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
| | - Zengling Ma
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou 325035, China; College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China; Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China.
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Heli Siti Halimatul Munawaroh
- Chemistry Program, Department of Chemistry Education, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia, Jalan Dr. Setiabudhi, 229, Bandung 40154, Indonesia
| | - Pau Loke Show
- Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China; Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai 602105, India.
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15
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Jung M, Kim YE, Lee N, Yu H, Lee J, Lee SY, Lee YC, Oh YK. Simultaneous enhancement of lipid biosynthesis and solvent extraction of Chlorella using aminoclay nanoparticles. BIORESOURCE TECHNOLOGY 2023; 384:129314. [PMID: 37311525 DOI: 10.1016/j.biortech.2023.129314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 06/15/2023]
Abstract
Magnesium aminoclay nanoparticles (MgANs) exert opposing effects on photosynthetic microalgae by promoting carbon dioxide (CO2) uptake and inducing oxidative stress. This study explored the potential application of MgAN in the production of algal lipids under high CO2 concentrations. The impact of MgAN (0.05-1.0 g/L) on cell growth, lipid accumulation, and solvent extractability varied among three tested oleaginous Chlorella strains (N113, KR-1, and M082). Among them, only KR-1 exhibited significant improvement in both total lipid content (379.4 mg/g cell) and hexane lipid extraction efficiency (54.5%) in the presence of MgAN compared to those of controls (320.3 mg/g cell and 46.1%, respectively). This improvement was attributed to the increased biosynthesis of triacylglycerols and a thinner cell wall based on thin-layer chromatography and electronic microscopy, respectively. These findings suggest that using MgAN with robust algal strains can enhance the efficiency of cost-intensive extraction processes while simultaneously increasing the algal lipid content.
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Affiliation(s)
- Mikyoung Jung
- School of Chemical Engineering, Pusan National University, Busan 46241, South Korea
| | - Young-Eun Kim
- School of Chemical Engineering, Pusan National University, Busan 46241, South Korea; Environmental Measurement and Analysis Center, National Institute of Environmental Research, Incheon 22689, South Korea
| | - Nakyeong Lee
- Institute for Environment & Energy, Pusan National University, Busan 46241, South Korea; Division of Environmental Materials, Honam National Institute of Biological Resources, Mokpo 58762, South Korea
| | - Hyoji Yu
- School of Chemical Engineering, Pusan National University, Busan 46241, South Korea
| | - Jiye Lee
- Gwangju Clean Energy Research Center, Korea Institute of Energy Research, Daejeon 34129, South Korea
| | - Soo Youn Lee
- Gwangju Clean Energy Research Center, Korea Institute of Energy Research, Daejeon 34129, South Korea
| | - Young-Chul Lee
- Department of BioNano Technology, Gachon University, Seongnam-si 13120, South Korea
| | - You-Kwan Oh
- School of Chemical Engineering, Pusan National University, Busan 46241, South Korea; Institute for Environment & Energy, Pusan National University, Busan 46241, South Korea.
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16
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Panbehkar Bisheh M, Amini Rad H. Optimization of the culture of Chlorella sorokiniana PA.91 by RSM: effect of temperature, light intensity, and MgAC-NPs. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:50896-50919. [PMID: 36807861 DOI: 10.1007/s11356-023-25779-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 01/30/2023] [Indexed: 04/16/2023]
Abstract
The unique physicochemical properties of magnesium amino clay nanoparticles (MgAC-NPs) tends to be beneficial in the application as a co-additive in treating microalgae. Also, MgAC-NPs can create oxidative stress in the environment, concurrently elective control bacteria in mixotrophic culture, and stimulate CO2 biofixation. The condition of the cultivation of newly isolated strains, Chlorella sorokiniana PA.91, was optimized for the first time for MgAC-NPs at various temperatures and light intensities in the culture medium of municipal wastewater (MWW) by central composite design in the response surface methodology (RSM-CCD). This study examined synthesized MgAC-NP with their FE-SEM, EDX, XRD, and FT-IR characteristics. The synthesized MgAC-NPs were naturally stable, cubic shaped, and within the size range of 30-60 nm. The optimization results show that at culture conditions of 20 °C, 37 μmol m-2 s-1, and 0.05 g L-1, microalga MgAC-NPs have the best growth productivity and biomass performance. Maximum dry biomass weight (55.41%), specific growth rate (30.26%), chlorophyll (81.26%), and carotenoids (35.71%) were achieved under the optimized condition. Experimental results displayed that C.S. PA.91 has a high capacity for lipid extraction (1.36 g L-1) and significant lipid efficiency (45.1%). Also, in 0.2 and 0.05 g L-1 of the MgAC-NPs, COD removal efficiency 91.1% and 81.34% from C.S. PA.91 showed, respectively. These results showed the potential of C.S. PA.91-MgAC-NPs for nutrient removal in wastewater treatment plants and their quality as sources of biodiesel.
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Affiliation(s)
- Masoumeh Panbehkar Bisheh
- Department of Environmental Engineering, Faculty of Civil Engineering, Babol Noshirvani University of Technology, Babol, 47148-7313, Iran
| | - Hasan Amini Rad
- Department of Environmental Engineering, Faculty of Civil Engineering, Babol Noshirvani University of Technology, Babol, 47148-7313, Iran.
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17
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Ren HY, Song X, Kong F, Song Q, Ren NQ, Liu BF. Lipid production characteristics of a newly isolated microalga Asterarcys quadricellulare R-56 as biodiesel feedstock. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:48339-48350. [PMID: 36757593 DOI: 10.1007/s11356-023-25728-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 01/31/2023] [Indexed: 02/10/2023]
Abstract
In this study, a new microalgal strain, Asterarcys quadricellulare R-56, was isolated for biomass and lipid production. The effects of carbon and nitrogen sources and initial pH on the cell growth and lipid accumulation of strain R-56 were investigated. At 10 g L-1 glucose, 0.6 g L-1 sodium nitrate, and pH 7, the highest biomass of 4.18 g L-1 and lipid content of 43.66% were obtained. Microalgae had a broad pH tolerance in the range of 5-11, and the pH of the culture medium was close to neutral at the end of cultivation. The maximum contents of chlorophyll, carbohydrate, and protein under the recommended culture conditions were 19.47 mg mL-1, 21.80%, and 29.94%, respectively. Palmitic and palmitoleic acid contents in strain R-56 accounted for as high as 83.73% of total fatty acids. This study suggested that strain R-56 was a promising lipid producer for high-quality biodiesel production.
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Affiliation(s)
- Hong-Yu Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Xueting Song
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Fanying Kong
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China. .,School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, 150030, China.
| | - Qingqing Song
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Nan-Qi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Bing-Feng Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
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18
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Song X, Liu BF, Kong F, Song Q, Ren NQ, Ren HY. Simultaneous chromium removal and lipid accumulation by microalgae under acidic and low temperature conditions for promising biodiesel production. BIORESOURCE TECHNOLOGY 2023; 370:128515. [PMID: 36538957 DOI: 10.1016/j.biortech.2022.128515] [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: 11/04/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Microalgae have become the hotspot of recent researches as heavy metals (HMs) adsorbent and biodiesel production feedstock. In this study, the cell growth, lipid production and Cr6+ removal of Parachlorella kessleri R-3 at pH 3.5 and 15 °C were investigated. It was found that low concentration of Cr6+ (0.5 to 2 mg/L) promoted the algal growth, whereas Cr6+ higher than 5 mg/L inhibited the growth of P. kessleri R-3. Biomass concentration (2.40 g/L) and lipid productivity (131.79 mg/L d-1) reached the highest at 2 mg/L Cr6+, and lipid content (61.03 %) reached the highest at 5 mg/L Cr6+. The maximum Cr6+ removal efficiency of 91 % was obtained at 0.5 mg/L Cr6+ treatment. Furthermore, fatty acid composition analysis showed that strain R-3 had a high C16-18 content of 74.88-89.21 %. This study provides new insight into the treatment of HMs and lipid production in cold regions.
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Affiliation(s)
- Xueting Song
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Bing-Feng Liu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Fanying Kong
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Qingqing Song
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Nan-Qi Ren
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Hong-Yu Ren
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
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19
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Lu H, Liu K, Zhang H, Xie X, Ge Y, Chi Z, Xue S, Kong F, Ohama T. Enhanced triacyclglycerols and starch synthesis in Chlamydomonas stimulated by the engineered biodegradable nanoparticles. Appl Microbiol Biotechnol 2023; 107:971-983. [PMID: 36622426 DOI: 10.1007/s00253-023-12366-x] [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: 05/07/2022] [Revised: 10/17/2022] [Accepted: 01/03/2023] [Indexed: 01/10/2023]
Abstract
Microalgae are promising feedstock for renewable fuels. The accumulation of oils in microalgae can be enhanced by nanoparticle exposure. However, the nanoparticles employed in previous studies are mostly non-biodegradable, which hinders nanoparticles developing as promising approach for biofuel production. We recently reported the engineered resin nanoparticles (iBCA-NPs), which were found to be biodegradable in this study. When the cells of green microalga Chlamydomonas reinhardtii were exposed to the iBCA-NPs for 1 h, the cellular triacyclglycerols (TAG) and starch contents increased by 520% and 60% than that in the control. The TAG production improved by 1.8-fold compared to the control without compromised starch production. Additionally, the content of total fatty acids increased by 1.3-fold than that in control. Furthermore, we found that the iBCA-NPs addition resulted in increased cellular reactive oxygen species (ROS) content and upregulated the activities of antioxidant enzymes. The relative expressions of the key genes involved in TAG and starch biosynthesis were also upregulated. Overall, our results showed that short exposure of the iBCA-NPs dramatically enhances TAG and starch accumulation in Chlamydomonas, which probably resulted from prompt upregulated expression of the key genes in lipid and starch metabolic pathways that were triggered by over-accumulated ROS. This study reported a useful approach to enhance energy-rich reserve accumulation in microalgae. KEY POINTS: 1. The first attempt to increase oil and starch in microalgae by biodegradable NPs. 2. The biodegradability of iBCA-NPs by the BOD test was more than 50% after 28 days. 3. The iBCA-NPs induce more energy reserves than that of previously reported NPs.
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Affiliation(s)
- Han Lu
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Keqing Liu
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Hao Zhang
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Xi Xie
- Dalian Key Laboratory of Genetic Resources for Marine Shellfish, Liaoning Ocean and Fisheries Science Research Institute, Dalian, 116023, China
| | - Yunlong Ge
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Zhanyou Chi
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Song Xue
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Fantao Kong
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China.
| | - Takeshi Ohama
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami-City, 782-8502, Japan
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20
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Lipid accumulation by a novel microalga Parachlorella kessleri R-3 with wide pH tolerance for promising biodiesel production. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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21
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Wan Mahari WA, Wan Razali WA, Manan H, Hersi MA, Ishak SD, Cheah W, Chan DJC, Sonne C, Show PL, Lam SS. Recent advances on microalgae cultivation for simultaneous biomass production and removal of wastewater pollutants to achieve circular economy. BIORESOURCE TECHNOLOGY 2022; 364:128085. [PMID: 36220529 DOI: 10.1016/j.biortech.2022.128085] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/02/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Microalgae are known for containing high value compounds and its significant role in sequestering carbon dioxide. This review mainly focuses on the emerging microalgae cultivation technologies such as nanomaterials technology that can improve light distribution during microalgae cultivation, attached cultivation and co-cultivation approaches that can improve growth and proliferation of algal cells, biomass yield and lipid accumulation in microalgal. This review includes a comprehensive discussion on the use of microbubbles technology to enhance aerated bubble capacity in photobioreactor to improve microalgal growth. This is followed by discussion on the role of microalgae as phycoremediation agent in removal of contaminants from wastewater, leading to better water quality and high productivity of shellfish. The review also includes techno-economic assessment of microalgae biorefinery technology, which is useful for scaling up the microalgal biofuel production system or integrated microalgae-shellfish cultivation system to support circular economy.
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Affiliation(s)
- Wan Adibah Wan Mahari
- Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Henan 450002, Zhengzhou, China; Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, Terengganu 21030, Kuala Nerus, Malaysia
| | - Wan Aizuddin Wan Razali
- Faculty of Fisheries & Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Hidayah Manan
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, Terengganu 21030, Kuala Nerus, Malaysia
| | - Mursal Abdulkadir Hersi
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, Terengganu 21030, Kuala Nerus, Malaysia
| | - Sairatul Dahlianis Ishak
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, Terengganu 21030, Kuala Nerus, Malaysia
| | - Wee Cheah
- Insitute of Ocean and Earth Sciences, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Derek Juinn Chieh Chan
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
| | - Christian Sonne
- Aarhus University, Department of Bioscience, Arctic Research Centre (ARC), Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark
| | - Pau Loke Show
- Department of Chemical Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Selangor, Malaysia
| | - Su Shiung Lam
- Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Henan 450002, Zhengzhou, China; Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, Terengganu 21030, Kuala Nerus, Malaysia; Automotive Development Centre (ADC), Institute for Vehicle Systems and Engineering (IVeSE), Universiti Teknologi Malaysia (UTM), Johor Bahru, 81310, Johor, Malaysia; Sustainability Cluster, School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand 248007, India.
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22
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Vargas-Estrada L, Hoyos EG, Sebastian P, Muñoz R. Elucidating the role of nanoparticles on photosynthetic biogas upgrading: Influence of biogas type, nanoparticle concentration and light source. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Critical Review on Nanomaterials for Enhancing Bioconversion and Bioremediation of Agricultural Wastes and Wastewater. ENERGIES 2022. [DOI: 10.3390/en15155387] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Anaerobic digestion (AD), microalgae cultivation, and microbial fuel cells (MFCs) are the major biological processes to convert organic solid wastes and wastewater in the agricultural industry into biofuels, biopower, various biochemical and fertilizer products, and meanwhile, recycle water. Various nanomaterials including nano zero valent irons (nZVIs), metal oxide nanoparticles (NPs), carbon-based and multicompound nanomaterials have been studied to improve the economics and environmental sustainability of those biological processes by increasing their conversion efficiency and the quality of products, and minimizing the negative impacts of hazardous materials in the wastes. This review article presented the structures, functionalities and applications of various nanomaterials that have been studied to improve the performance of AD, microalgae cultivation, and MFCs for recycling and valorizing agricultural solid wastes and wastewater. The review also discussed the methods that have been studied to improve the performance of those nanomaterials for their applications in those biological processes.
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Tan FHP, Nadir N, Sudesh K. Microalgal Biomass as Feedstock for Bacterial Production of PHA: Advances and Future Prospects. Front Bioeng Biotechnol 2022; 10:879476. [PMID: 35646848 PMCID: PMC9133917 DOI: 10.3389/fbioe.2022.879476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 04/06/2022] [Indexed: 11/13/2022] Open
Abstract
The search for biodegradable plastics has become the focus in combating the global plastic pollution crisis. Polyhydroxyalkanoates (PHAs) are renewable substitutes to petroleum-based plastics with the ability to completely mineralize in soil, compost, and marine environments. The preferred choice of PHA synthesis is from bacteria or archaea. However, microbial production of PHAs faces a major drawback due to high production costs attributed to the high price of organic substrates as compared to synthetic plastics. As such, microalgal biomass presents a low-cost solution as feedstock for PHA synthesis. Photoautotrophic microalgae are ubiquitous in our ecosystem and thrive from utilizing easily accessible light, carbon dioxide and inorganic nutrients. Biomass production from microalgae offers advantages that include high yields, effective carbon dioxide capture, efficient treatment of effluents and the usage of infertile land. Nevertheless, the success of large-scale PHA synthesis using microalgal biomass faces constraints that encompass the entire flow of the microalgal biomass production, i.e., from molecular aspects of the microalgae to cultivation conditions to harvesting and drying microalgal biomass along with the conversion of the biomass into PHA. This review discusses approaches such as optimization of growth conditions, improvement of the microalgal biomass manufacturing technologies as well as the genetic engineering of both microalgae and PHA-producing bacteria with the purpose of refining PHA production from microalgal biomass.
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Affiliation(s)
| | | | - Kumar Sudesh
- School of Biological Sciences, Universiti Sains Malaysia, Penang, Malaysia
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El-Naggar NEA, Hamouda RA, Abou-El-Souod GW. Statistical optimization for simultaneous removal of methyl red and production of fatty acid methyl esters using fresh alga Scenedesmus obliquus. Sci Rep 2022; 12:7156. [PMID: 35504903 PMCID: PMC9065141 DOI: 10.1038/s41598-022-11069-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 04/08/2022] [Indexed: 11/08/2022] Open
Abstract
Microalgae are a diverse group of microorganisms, the majority of which are photosynthetic in nature. Microalgae have different applications, the most important of which is the biological treatment of wastewater. Microalgae grow in various types of wastewater, such as wastewater polluted by Azo dyes, due to microalgae using wastewater as a culture medium, which contains many nutrients like nitrogen, phosphate, and carbon sources. Microalgae grow in various types of wastewater, such as wastewater polluted by Azo dyes, due to microalgae using wastewater as a culture medium, which contains many nutrients like nitrogen, phosphate, and carbon sources. So, microalgae are used for bioremediation of wastewater due to the efficiency of growing in wastewater and for the high production of lipids followed by trans-esterification to biodiesel. Face-centered central composite design (FCCCD) was used to determine the factors that have the most significant impact on the simultaneous decolorization of methyl red and lipid production by the fresh green alga Scenedesmus obliquus. The predicted results indicated that the alga decolorized 70.15% methyl red and produced 20.91% lipids by using 1 g/L nitrogen, an incubation time of 10 days, a pH of 8, and the concentration of methyl red is 17.65 mg/L. The dry biomasses of S. obliquus were also examined by SEM and FTIR before and after treatment with methyl red. SEM and FTIR showed that the properties of dry S. obliquus were altered after the biosorption of methyl red. According to GC-MS analysis of hexane extracts of S. obliquus, the lipid profile differed before and after methyl red decolorization. The results proved that it is possible to use S. obliquus to remove dyes and produce renewable fuels such as biodiesel. The novelty of this study is that this is the first time in which the effect of nitrogen concentrations in the medium used for algal growth on the removal of dye has been studied.
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Affiliation(s)
- Noura El-Ahmady El-Naggar
- Department of Bioprocess Development, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El‑Arab City, 21934, Alexandria, Egypt.
| | - Ragaa A Hamouda
- Department of Biology, College of Sciences and Arts Khulis, University of Jeddah, Jeddah, Saudi Arabia
- Department of Microbial Biotechnology, Genetic Engineering and Biotechnology Research Institute (GEBRI), University of Sadat City, Sadat City, Egypt
| | - Ghada W Abou-El-Souod
- Department of Botany and Microbiology, Faculty of Science, Menoufia University, Shibīn al-Kawm, Menoufia, Egypt
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Zhao X, Yan J, Yang T, Xiong P, Zheng X, Lu Y, Jing K. Exploring engineering reduced graphene oxide-titanium dioxide (RGO-TiO 2) nanoparticles treatment to effectively enhance lutein biosynthesis with Chlorella sorokiniana F31 under different light intensity. BIORESOURCE TECHNOLOGY 2022; 348:126816. [PMID: 35134526 DOI: 10.1016/j.biortech.2022.126816] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/31/2022] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Abstract
The Chlorella sorokiniana F31 is a promising lutein producer with high lutein content. Herein, different graphene/TiO2 nanoparticles (NPs) were designed and synthesized by hydrothermal method. Through the UV-vis diffuse reflectance spectra (DRS) analysis, the results showed that RGO-TiO2 NPs can effectively expand visible light absorption compared with TiO2 NPs. Subsequently, the effects of these NPs on light utilization and lutein accumulation of C. sorokiniana F31 were investigated, and the RGO-TiO2 NPs treatment exhibited the higher lutein production and content than that of TiO2 and control group. As the optimal RGO-TiO2 (0.5 wt%) NPs concentration of 50 mg/L and light intensity of 211 μmol/m2/s, the supreme lutein content (15.55 mg/g), production (77.2 mg/L) and productivity (12.87 mg/L/d) were achieved. The performances are higher than most of reported values in previous study, indicated that RGO-TiO2 (0.5 wt%) NPs treatment is a promised strategy to enhance microalgal growth and lutein accumulation.
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Affiliation(s)
- Xunrui Zhao
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jiangtao Yan
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tongtong Yang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Pan Xiong
- Department of Chemistry and Applied Chemistry, Changji University, Xinjiang 831100, China
| | - Xin Zheng
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yinghua Lu
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; The Key Lab for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, China
| | - Keju Jing
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; The Key Lab for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, China.
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27
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Feng Q, Sun Y, Li A, Lin X, Lu T, Ding D, Shi M, Sun Y, Yuan Y. Revealing dual roles of g-C 3N 4 in Chlorella vulgaris cultivation. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127639. [PMID: 34750001 DOI: 10.1016/j.jhazmat.2021.127639] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 10/18/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
Booming graphitic carbon nitride (g-C3N4) photocatalyzed water splitting increases crisis of aquatic contamination. However, a controversial understanding regarding effect of g-C3N4 on growth of microalgae still exists. Accordingly, Chlorella vulgaris were cultured in 0-250 mg/L of g-C3N4 with biomass named as C-0, C-50, C-100, C-150, C-200, and C-250, respectively. g-C3N4 below 200 mg/L was beneficial to short-term cultivation of microalgae, while it was harmful to long-time cultivation. Protein factions of C-0, C-100, and C-250 were 41.4, 42.3, and 36.4 wt%, while their lipid factions varied from 21.5, 16.9, to 17.8 wt%, respectively. In short-term cultivation, superoxide dismutase's activity of C-0, C-150, and C-250 increased dramatically, while accumulated H2O2 led to increased activity of catalase. However, it started to decrease once antioxidant enzymes were per-oxidized, leading to increase of malondialdehyde content. In long-term cultivation, activities of superoxide dismutase, catalase and malondialdehyde content decreased dramatically owning to peroxidation of algae. Scavenger tests with tertiary butanol and triethanolamine implied that·OH was dominate parameter affecting growth of microalgae. This work indicates that g-C3N4 below 200 mg/L is propitious to short-term cultivation of microalgae, while it is bad to long-time cultivation of microalgae, revealing dual rules of g-C3N4 in Chlorella vulgaris cultivation.
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Affiliation(s)
- Qian Feng
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Yabo Sun
- School of Chemistry & Chemical Engineering, School of Resources and Environmental Engineering, Anhui University, Jiulong Rd 111, Hefei, Anhui, 230039, China; Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei, Anhui, 230601, China
| | - An Li
- School of Chemistry & Chemical Engineering, School of Resources and Environmental Engineering, Anhui University, Jiulong Rd 111, Hefei, Anhui, 230039, China
| | - Xiangang Lin
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, 230012, China
| | - Tao Lu
- School of Chemistry & Chemical Engineering, School of Resources and Environmental Engineering, Anhui University, Jiulong Rd 111, Hefei, Anhui, 230039, China
| | - Dan Ding
- School of Chemistry & Chemical Engineering, School of Resources and Environmental Engineering, Anhui University, Jiulong Rd 111, Hefei, Anhui, 230039, China
| | - Menghan Shi
- School of Chemistry & Chemical Engineering, School of Resources and Environmental Engineering, Anhui University, Jiulong Rd 111, Hefei, Anhui, 230039, China
| | - Yingqiang Sun
- School of Chemistry & Chemical Engineering, School of Resources and Environmental Engineering, Anhui University, Jiulong Rd 111, Hefei, Anhui, 230039, China; Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei, Anhui, 230601, China.
| | - Yupeng Yuan
- School of Chemistry & Chemical Engineering, School of Resources and Environmental Engineering, Anhui University, Jiulong Rd 111, Hefei, Anhui, 230039, China; Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei, Anhui, 230601, China.
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28
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Magoni C, Bertacchi S, Giustra CM, Guzzetti L, Cozza R, Ferrari M, Torelli A, Marieschi M, Porro D, Branduardi P, Labra M. Could microalgae be a strategic choice for responding to the demand for omega-3 fatty acids? A European perspective. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.01.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Development of a Strategy for Enhancing the Biomass Growth and Lipid Accumulation of Chlorella sp. UJ-3 Using Magnetic Fe 3O 4 Nanoparticles. NANOMATERIALS 2021; 11:nano11112802. [PMID: 34835566 PMCID: PMC8624931 DOI: 10.3390/nano11112802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/13/2021] [Accepted: 10/19/2021] [Indexed: 01/24/2023]
Abstract
In this study, magnetic Fe3O4 nanoparticles (NPs) were used as an effective enhancer to increase the biomass and total lipid production of Chlorella sp. UJ-3. It was found that the biomass of algal cells increased significantly when they were exposed to low concentrations of Fe3O4 NPs (20 mg/L), while the best total lipid content of algal cells was achieved when they were exposed to high concentrations of Fe3O4 NPs (100 mg/L). Therefore, we established a strategy to promote the growth and lipid accumulation of microalgae by initially exposing the algal cells to low concentrations of Fe3O4 NPs and then treating them with an increased concentration of Fe3O4 NPs after 12 days of culture. For this strategy, the biomass and total lipid production of algal cells increased by 50% and 108.7%, respectively, compared to the untreated control. The increase in lipid production and change in the fatty acid composition of Chlorella cells were found to help them to cope with the increased number of reactive oxygen species produced due to oxidative stress in alga cells after the addition of Fe3O4 NPs. This study provided a highly efficient way to improve the lipid production of microalgae using nanoparticles.
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Dev Sarkar R, Singh HB, Chandra Kalita M. Enhanced lipid accumulation in microalgae through nanoparticle-mediated approach, for biodiesel production: A mini-review. Heliyon 2021; 7:e08057. [PMID: 34622062 PMCID: PMC8481968 DOI: 10.1016/j.heliyon.2021.e08057] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/02/2021] [Accepted: 09/20/2021] [Indexed: 12/11/2022] Open
Abstract
Nanoparticle application in microalgae for enhanced lipid production is an ongoing work that leads towards the contribution in biodiesel production. During this decade, metal nanoparticles are constantly being reported to have numerous applications in diverse fields, because of their unique optical, electrical, and magnetic properties. They can interact with the biomolecules of cells and thereby alters cellular metabolisms, which in turn reflects their ability to regulate some primary or secondary metabolic pathways. Nanoparticles derived from metals like Fe, Cu, and Se are taking part in redox processes and their presence in many enzymes may modulate algal metabolisms. Besides by upregulating or downregulating the expression of several genes, nanoparticle exposure can alter gene expressions in many organisms. In microalgae such as Chlorella vulgaris, C. pyrenoidosa, Scenedesmus obliquus, S. rubescens, Trachydiscus minut u s, Parachlorella kessleri, and Tetraselmis suecica; metal nanoparticle exposure in different environmental conditions have impacts on various physiological or molecular changes, thereby increasing the growth rate, biomass and lipid production. The present mini-review gives an insight into the various advantages and a future outlook on the application of nanoparticles in microalgae for biofuel production. Also, it can be proposed that nanoparticles could be useful in blocking or deactivating the AGPase enzyme (involved in the glucose to starch conversion pathway), binding to its active site, thereby increasing lipid production in microalgae that could be utilized for enhanced biodiesel production.
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Kashyap M, Samadhiya K, Ghosh A, Anand V, Lee H, Sawamoto N, Ogura A, Ohshita Y, Shirage PM, Bala K. Synthesis, characterization and application of intracellular Ag/AgCl nanohybrids biosynthesized in Scenedesmus sp. as neutral lipid inducer and antibacterial agent. ENVIRONMENTAL RESEARCH 2021; 201:111499. [PMID: 34146525 DOI: 10.1016/j.envres.2021.111499] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 02/09/2021] [Accepted: 06/06/2021] [Indexed: 06/12/2023]
Abstract
The current research focuses on the Intracellular biosynthesis of Ag/AgCl nanohybrids in microalgae, Scenedesmus sp. The effect of biosynthesis process on growth and lipid profile of cells is key element of this study. Ag/AgCl nanohybrids synthesized intracellularly were characterized by UV-Vis spectrophotometer, Powder X-Ray Diffraction (P-XRD), Scanning Electron Microscopy (SEM), High Resolution Transmission Electron Microscopy (HRTEM). 10-20 nm and 10-50 nm sized spherical shaped nanoparticles of polycrystalline nature were grown using 0.5 and 1 mM of AgNO3 precursor, respectively and Scenedesmus sp. as reducing agent. Total lipid content of the cells treated with 0.5 mM and 1 mM AgNO3 was static and found to be 43.2 ± 0.01 μg/mL and 48.2 ± 0.02 μg/mL respectively at 120 h of Ag/AgCl nanoparticles biosynthesis. FAME (Fatty Acid Methyl Ester) profile was improved due to intracellular nanoparticles biosynthesis with maximum C16:0 (palmitic acid) (35.7%) in cells treated with 0.5 mM AgNO3 used for Ag/AgCl nanohybrids synthesis. Palmitic acid in cells exposed to 0.5 mM concentration of metallic precursor increased by 75.86%. Synthesized nanoparticles were tested on four bacterial strains to establish its antibacterial efficiency showing appropriate zone of inhibition at varying concentrations. Present study efficiently demonstrates the utility of microalgae integrating nanoparticles biosynthesis and lipid accumulation.
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Affiliation(s)
- Mrinal Kashyap
- Department of Biosciences and Biomedical Engineering, IIT Indore, India
| | - Kanchan Samadhiya
- Department of Biosciences and Biomedical Engineering, IIT Indore, India
| | - Atreyee Ghosh
- Department of Biosciences and Biomedical Engineering, IIT Indore, India
| | - Vishal Anand
- Department of Biosciences and Biomedical Engineering, IIT Indore, India
| | - Hyunju Lee
- Meiji Renewable Energy Laboratory, Meiji University, Kawasaki, Japan
| | - Naomi Sawamoto
- Meiji Renewable Energy Laboratory, Meiji University, Kawasaki, Japan
| | - Atsushi Ogura
- Meiji Renewable Energy Laboratory, Meiji University, Kawasaki, Japan; School of Science and Technology, Meiji University, Kawasaki, Japan
| | | | | | - Kiran Bala
- Department of Biosciences and Biomedical Engineering, IIT Indore, India.
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32
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Pei XY, Ren HY, Liu BF. Flocculation performance and mechanism of fungal pellets on harvesting of microalgal biomass. BIORESOURCE TECHNOLOGY 2021; 321:124463. [PMID: 33290984 DOI: 10.1016/j.biortech.2020.124463] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 06/12/2023]
Abstract
In this study, a bioflocculation method assisted by fungal pellets was developed for highly efficient microalgae harvesting. Effects of critical parameters, including flocculation type, temperature, rotation speed and initial pH, on the bioflocculation of fungal Aspergillus niger for microalgae Scenedesmus sp. were investigated. Results showed that the maximum flocculation efficiency of 99.4% was obtained when the fungal pellets were inoculated in the algal solution at the initial pH of 8.0, temperature of 30 °C and rotation speed of 160 rpm for 48 h in BG-11 medium. Furthermore, microscopy examination, scanning electron microscopy, Fourier transform infrared spectroscopy, Zeta potential measurement and three-dimensional excitation emission matrix fluorescence spectroscopy were used to explore the mechanism of bioflocculation process. It was found that the interaction of fungi and microalgae was related to the surface functional groups of fungal pellets. This study provides a interpretation of conceivable mechanism for microalgal bioflocculation by fungal pellets.
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Affiliation(s)
- Xuan-Yuan Pei
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Hong-Yu Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Bing-Feng Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
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Aravantinou AF, Andreou F, Manariotis ID. Long-Term Toxicity of ZnO Nanoparticles on Scenedesmus rubescens Cultivated in Semi-Batch Mode. NANOMATERIALS 2020; 10:nano10112262. [PMID: 33207538 PMCID: PMC7696607 DOI: 10.3390/nano10112262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/06/2020] [Accepted: 11/08/2020] [Indexed: 12/17/2022]
Abstract
The scope of this study was to investigate the toxic effects of zinc oxide (ZnO) nanoparticles (NPs) on freshwater microalgae, in long-term semi-batch feeding mode at two different hydraulic retention times (HRTs) (20 and 40 days). A freshwater microalgae, Scenedesmus rubescens, was employed and exposed to a semi-continuous supply of ZnO NPs at a low concentration of 0.081 mg/L for a period of 28 d. Experiments were conducted under controlled environmental conditions. Τhe impact of ZnO NPs on S. rubescens, which was assessed in terms of nutrient removal, biomass growth, and algal lipid content. Semi-batch mode cultures showed that low ZnO NP concentrations at an HRT of 40 d did not have any negative effect on microalgae growth after the fourth day of culture. In contrast, algal growth was inhibited up to 17.5% at an HRT of 20 d in the presence of ZnO NPs. This might be attributed to the higher flow rate applied and ZnO NPs load. A positive correlation between nutrient removal and microalgae growth was observed. The algal lipid content was, in most cases, higher in the presence of ZnO NPs at both HRTs, indicating that even low ZnO NPs concentration cause stress resulting in higher lipid content.
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34
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Zhang S, He Y, Sen B, Wang G. Reactive oxygen species and their applications toward enhanced lipid accumulation in oleaginous microorganisms. BIORESOURCE TECHNOLOGY 2020; 307:123234. [PMID: 32245673 DOI: 10.1016/j.biortech.2020.123234] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/17/2020] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
Oleaginous microorganisms are among the most promising alternative sources of lipids for oleochemicals and biofuels. However, in the course of lipid production, reactive oxygen species (ROS) are generated inevitably as byproducts of aerobic metabolisms. Although excessive accumulation of ROS leads to lipid peroxidation, DNA damage, and protein denaturation, ROS accumulation has been suggested to enhance lipid synthesis in these microorganisms. There are many unresolved questions concerning this dichotomous view of ROS influence on lipid accumulation. These include what level of ROS triggers lipid overproduction, what mechanisms and targets are vital and whether ROS act as toxic byproducts or cellular messengers in these microorganisms? Here we review the current state of knowledge on ROS generation, antioxidative defense system, the dual effects of ROS on microbial lipid production, and ROS-induced lipid peroxidation and accumulation mechanisms. Toward the end, the review summarizes strategies that enhance lipid production based on ROS manipulation.
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Affiliation(s)
- Sai Zhang
- Center for Marine Environmental Ecology, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Yaodong He
- Center for Marine Environmental Ecology, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Biswarup Sen
- Center for Marine Environmental Ecology, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Guangyi Wang
- Center for Marine Environmental Ecology, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China; Qingdao Institute Ocean Engineering of Tianjin University, Qingdao 266237, China.
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35
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Feng X, Chen Y, Lv J, Han S, Tu R, Zhou X, Jin W, Ren N. Enhanced lipid production by Chlorella pyrenoidosa through magnetic field pretreatment of wastewater and treatment of microalgae-wastewater culture solution: Magnetic field treatment modes and conditions. BIORESOURCE TECHNOLOGY 2020; 306:123102. [PMID: 32179399 DOI: 10.1016/j.biortech.2020.123102] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 06/10/2023]
Abstract
The cultivation of microalgae in municipal wastewater not only purifies the wastewater but also transforms nutrients into biomass that contains high-value lipids. In this study, conventional static bottom-magnetic field (bottom-MF) equipment and cost-effective bypass-magnetic field (bypass-MF) equipment were designed and independently coupled with a microalgae-wastewater system in different positions to evaluate the effect of magnetic field (MF) on microalgae biomass production and lipid accumulation. When the MF equipment was applied in the wastewater pretreatment unit, the bottom-MF pretreatment mode exhibited a more beneficial effect on subsequent biomass and lipid accumulation. However, when the MF equipment was applied in the microalgae-wastewater culture unit, there was no significant difference between the bottom-MF and bypass-MF modes. The results of the orthogonal experiment suggested the optimum conditions for lipid production were wastewater pretreatment by bottom-MF at 5000 Gs for 1 h, followed by microalgae-wastewater culture treatment by bypass-MF at 5000 Gs for 3 h.
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Affiliation(s)
- Xiaochi Feng
- Shenzhen Engineering Laboratory of Microalgal Bioenergy, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China; School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China
| | - Yangguang Chen
- School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China; Guangzhou Metro Design & Research Institute Co., Ltd., Guangzhou, Guangdong 510010, PR China
| | - Junhong Lv
- School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China
| | - Songfang Han
- Shenzhen Engineering Laboratory of Microalgal Bioenergy, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China; School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China
| | - Renjie Tu
- Shenzhen Engineering Laboratory of Microalgal Bioenergy, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China; School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China
| | - Xu Zhou
- Shenzhen Engineering Laboratory of Microalgal Bioenergy, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China; School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China
| | - Wenbiao Jin
- Shenzhen Engineering Laboratory of Microalgal Bioenergy, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China; School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China.
| | - Nanqi Ren
- School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
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