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Chauhan AS, Singhania RR, Patel AK, Bhatia SK, Chang JS, Chen CW, Dong CD. A sustainable bioremediation of vanadium from marine environment and value-addition using potential thraustochytrids. BIORESOURCE TECHNOLOGY 2024; 411:131356. [PMID: 39186987 DOI: 10.1016/j.biortech.2024.131356] [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: 07/16/2024] [Revised: 08/24/2024] [Accepted: 08/24/2024] [Indexed: 08/28/2024]
Abstract
Rising concerns about global environmental degradation underscore the pressing need for effective solutions to combat heavy metal pollution. Industries such as semiconductor and steel production discharge vanadium into marine ecosystems, posing significant risks to both marine life and human health. The current study investigates efficacy of utilizing marine thraustochytrid for efficient vanadium removal outcompeting other microbial sources. By optimizing pH and temperature conditions during harvesting, achieved a remarkable 50.80 % enhancement in vanadium removal efficiency, from 19.31 to 29.12 mg/L. Furthermore, chelating agents EDTA and citric acid supplementation demonstrated promising enhancements, reaching up to 31.21 and 32.59 mg/L, respectively. Notably, vanadium-treated biomass supplemented with citric acid exhibited maximum enhancement in lipid content, from 58.47 to 75.34 %, indicating thraustochytrid's potential for biofuel production. This study presents a sustainable approach for industrial-scale vanadium bioremediation, aligning with Sustainable Development Goals focused on dual benefits of environmental protection and renewable energy.
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Affiliation(s)
- Ajeet Singh Chauhan
- Institute of Aquatic Science and Technology, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, 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
| | - 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.
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jo-Shu Chang
- Department of Chemical and Materials Engineering, Tunghai University, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taiwan
| | - Chiu-Wen Chen
- 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
| | - 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.
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2
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Yan Y, Yang H, Du Y, Li X, Li X. Effects and molecular mechanisms of polyethylene microplastic oxidation on wheat grain quality. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134816. [PMID: 38850928 DOI: 10.1016/j.jhazmat.2024.134816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/17/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Polyethylene microplastics (PE MPs) are the main MPs in agricultural soils and undergo oxidation upon environmental exposure. However, the influence of MP oxidation on phytotoxicity (especially for crop fruit) is still limited. This study aimed to explore the effect of PE MP oxidation on crop toxicity. Herein, a combination of plant phenotyping, metabolomic, and transcriptomic approaches was used to evaluate the effects of low-oxidation PE (LOPE) and high-oxidation PE (HOPE) on wheat growth, grain quality, and related molecular mechanisms using pot experiments. The results showed that HOPE induced a stronger inhibition of wheat growth and reduction in protein content and mineral elements than LOPE. This was accompanied by root ultrastructural damage and downregulation of carbohydrate metabolism, translation, nutrient reservoir activity, and metal ion binding gene expression. Compared with HOPE, LOPE activated a stronger plant defense response by reducing the starch content by 22.87 %, increasing soluble sugar content by 44.93 %, and upregulating antioxidant enzyme genes and crucial metabolic pathways (e.g., starch and sucrose, linoleic acid, and phenylalanine metabolism). The presence of PE MPs in the environment exacerbates crop growth inhibition and fruit quality deterioration, highlighting the need to consider the environmental and food safety implications of MPs in agricultural soils.
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Affiliation(s)
- Yan Yan
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, China
| | - Huijie Yang
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, China
| | - Yuan Du
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Xiaoqiang Li
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, China
| | - Xiaokang Li
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, China.
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3
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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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4
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Seth T, Asija S, Umar S, Gupta R. The intricate role of lipids in orchestrating plant defense responses. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 338:111904. [PMID: 37925973 DOI: 10.1016/j.plantsci.2023.111904] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 10/08/2023] [Accepted: 10/20/2023] [Indexed: 11/07/2023]
Abstract
Plants are exposed to a variety of pests and pathogens that reduce crop productivity. Plants respond to such attacks by activating a sophisticated signaling cascade that initiates with the recognition of pests/pathogens and may culminate into a resistance response. Lipids, being the structural components of cellular membranes, function as mediators of these signaling cascades and thus are instrumental in the regulation of plant defense responses. Accumulating evidence indicates that various lipids such as oxylipins, phospholipids, glycolipids, glycerolipids, sterols, and sphingolipids, among others, are involved in mediating cell signaling during plant-pathogen interaction with each lipid exhibiting a specific biological relevance, follows a distinct biosynthetic mechanism, and contributes to specific signaling cascade(s). Omics studies have further confirmed the involvement of lipid biosynthetic enzymes including the family of phospholipases in the production of defense signaling molecules subsequent to pathogen attack. Lipids participate in stress signaling by (1) mediating the signal transduction, (2) acting as precursors for bioactive molecules, (3) regulating ROS formation, and (4) interacting with various phytohormones to orchestrate the defense response in plants. In this review, we present the biosynthetic pathways of different lipids, their specific functions, and their intricate roles upstream and downstream of phytohormones under pathogen attack to get a deeper insight into the molecular mechanism of lipids-mediated regulation of defense responses in plants.
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Affiliation(s)
- Tanashvi Seth
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Sejal Asija
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Shahid Umar
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Ravi Gupta
- College of General Education, Kookmin University, Seoul 02707, South Korea.
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5
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Zárate-López MA, Quintana-Rodríguez E, Orona-Tamayo D, Aguilar-Hernández V, Araujo-León JA, Brito-Argáez L, Molina-Torres J, Hernández-Flores JL, Loyola-Vargas VM, Lozoya-Pérez NE, Lozoya-Gloria E. Metabolic Responses of the Microalga Neochloris oleoabundans to Extracellular Self- and Nonself-DNA. Int J Mol Sci 2023; 24:14172. [PMID: 37762475 PMCID: PMC10531809 DOI: 10.3390/ijms241814172] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Stressed organisms identify intracellular molecules released from damaged cells due to trauma or pathogen infection as components of the innate immune response. These molecules called DAMPs (Damage-Associated Molecular Patterns) are extracellular ATP, sugars, and extracellular DNA, among others. Animals and plants can recognize their own DNA applied externally (self-exDNA) as a DAMP with a high degree of specificity. However, little is known about the microalgae responses to damage when exposed to DAMPs and specifically to self-exDNAs. Here we compared the response of the oilseed microalgae Neochloris oleoabundans to self-exDNA, with the stress responses elicited by nonself-exDNA, methyl jasmonate (MeJA) and sodium bicarbonate (NaHCO3). We analyzed the peroxidase enzyme activity related to the production of reactive oxygen species (ROS), as well as the production of polyphenols, lipids, triacylglycerols, and phytohormones. After 5 min of addition, self-exDNA induced peroxidase enzyme activity higher than the other elicitors. Polyphenols and lipids were increased by self-exDNA at 48 and 24 h, respectively. Triacylglycerols were increased with all elicitors from addition and up to 48 h, except with nonself-exDNA. Regarding phytohormones, self-exDNA and MeJA increased gibberellic acid, isopentenyladenine, and benzylaminopurine at 24 h. Results show that Neochloris oleoabundans have self-exDNA specific responses.
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Affiliation(s)
- Mónica A. Zárate-López
- Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN), Unidad Irapuato, Km 9.6 Carretera Irapuato-León, Irapuato 36824, Guanajuato, Mexico; (M.A.Z.-L.); (J.M.-T.); (J.L.H.-F.)
- Centro de Innovación Aplicada en Tecnologías Competitivas (CIATEC), Omega # 201 Col. Industrial Delta, León 37545, Guanajuato, Mexico; (D.O.-T.); (N.E.L.-P.)
| | - Elizabeth Quintana-Rodríguez
- Centro de Innovación Aplicada en Tecnologías Competitivas (CIATEC), Omega # 201 Col. Industrial Delta, León 37545, Guanajuato, Mexico; (D.O.-T.); (N.E.L.-P.)
| | - Domancar Orona-Tamayo
- Centro de Innovación Aplicada en Tecnologías Competitivas (CIATEC), Omega # 201 Col. Industrial Delta, León 37545, Guanajuato, Mexico; (D.O.-T.); (N.E.L.-P.)
| | - Víctor Aguilar-Hernández
- Centro de Investigación Científica de Yucatán, A.C. (CICY), Calle 43 # 130, Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico; (V.A.-H.); (J.A.A.-L.); (L.B.-A.); (V.M.L.-V.)
| | - Jesús A. Araujo-León
- Centro de Investigación Científica de Yucatán, A.C. (CICY), Calle 43 # 130, Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico; (V.A.-H.); (J.A.A.-L.); (L.B.-A.); (V.M.L.-V.)
| | - Ligia Brito-Argáez
- Centro de Investigación Científica de Yucatán, A.C. (CICY), Calle 43 # 130, Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico; (V.A.-H.); (J.A.A.-L.); (L.B.-A.); (V.M.L.-V.)
| | - Jorge Molina-Torres
- Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN), Unidad Irapuato, Km 9.6 Carretera Irapuato-León, Irapuato 36824, Guanajuato, Mexico; (M.A.Z.-L.); (J.M.-T.); (J.L.H.-F.)
| | - José Luis Hernández-Flores
- Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN), Unidad Irapuato, Km 9.6 Carretera Irapuato-León, Irapuato 36824, Guanajuato, Mexico; (M.A.Z.-L.); (J.M.-T.); (J.L.H.-F.)
| | - Víctor M. Loyola-Vargas
- Centro de Investigación Científica de Yucatán, A.C. (CICY), Calle 43 # 130, Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico; (V.A.-H.); (J.A.A.-L.); (L.B.-A.); (V.M.L.-V.)
| | - Nancy E. Lozoya-Pérez
- Centro de Innovación Aplicada en Tecnologías Competitivas (CIATEC), Omega # 201 Col. Industrial Delta, León 37545, Guanajuato, Mexico; (D.O.-T.); (N.E.L.-P.)
| | - Edmundo Lozoya-Gloria
- Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN), Unidad Irapuato, Km 9.6 Carretera Irapuato-León, Irapuato 36824, Guanajuato, Mexico; (M.A.Z.-L.); (J.M.-T.); (J.L.H.-F.)
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6
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Sun H, Gao Z, Zhang L, Wang X, Gao M, Wang Q. A comprehensive review on microbial lipid production from wastes: research updates and tendencies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:79654-79675. [PMID: 37328718 DOI: 10.1007/s11356-023-28123-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 06/01/2023] [Indexed: 06/18/2023]
Abstract
Microbial lipids have recently attracted attention as an intriguing alternative for the biodiesel and oleochemical industries to achieve sustainable energy generation. However, large-scale lipid production remains limited due to the high processing costs. As multiple variables affect lipid synthesis, an up-to-date overview that will benefit researchers studying microbial lipids is necessary. In this review, the most studied keywords from bibliometric studies are first reviewed. Based on the results, the hot topics in the field were identified to be associated with microbiology studies that aim to enhance lipid synthesis and reduce production costs, focusing on the biological and metabolic engineering involved. The research updates and tendencies of microbial lipids were then analyzed in depth. In particular, feedstock and associated microbes, as well as feedstock and corresponding products, were analyzed in detail. Strategies for lipid biomass enhancement were also discussed, including feedstock adoption, value-added product synthesis, selection of oleaginous microbes, cultivation mode optimization, and metabolic engineering strategies. Finally, the environmental implications of microbial lipid production and possible research directions were presented.
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Affiliation(s)
- Haishu Sun
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Shunde Innovation School, University of Science and Technology Beijing, Foshan, 528399, China
| | - Zhen Gao
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Lirong Zhang
- Tianjin College, University of Science and Technology, Beijing, Tianjin, 301811, China
| | - Xiaona Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
- Shunde Innovation School, University of Science and Technology Beijing, Foshan, 528399, China.
| | - Ming Gao
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qunhui Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Tianjin College, University of Science and Technology, Beijing, Tianjin, 301811, China
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7
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Xiao X, Li W, Jin M, Zhang L, Qin L, Geng W. Responses and tolerance mechanisms of microalgae to heavy metal stress: A review. MARINE ENVIRONMENTAL RESEARCH 2023; 183:105805. [PMID: 36375224 DOI: 10.1016/j.marenvres.2022.105805] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/26/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
Microalgae, the primary producers in water ecosystems, are the main food of fish and shrimp. Microalgae have a great capacity to absorb heavy metals, and low concentrations of heavy metals can promote the growth of them. But high concentrations have a strong influence on the physiological and biochemical processes in algae, such as growth, photosynthesis, cell ultrastructure, protein content and fatty acid composition. Heavy metals may also induce the formation of reactive oxygen species (ROS), which causes the oxidation damage of protein, lipid and thiol peptides, and activates the antioxidant system. Heavy metals can be removed or converted into another state by biosorption of cell surface, accumulation in cells, combining with antioxidant enzymes and so on. This review summarized the responses of microalgae to heavy metals and comprehensively described the removal and tolerance mechanisms by extracellular adsorption and intracellular accumulation, which are helpful to treat pollution and improve the culture of microalgae.
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Affiliation(s)
- Xinfeng Xiao
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao, 266510, China.
| | - Wenfang Li
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao, 266510, China
| | - Meng Jin
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao, 266510, China
| | - Linlin Zhang
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao, 266510, China
| | - Liguo Qin
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao, 266510, China
| | - Weiwei Geng
- College of Safety and Environment Engineering, Shandong University of Science and Technology, Qingdao, 266510, China
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Casanova LM, Mendes LBB, Corrêa TDS, da Silva RB, Joao RR, Macrae A, Vermelho AB. Development of Microalgae Biodiesel: Current Status and Perspectives. Microorganisms 2022; 11:microorganisms11010034. [PMID: 36677325 PMCID: PMC9862501 DOI: 10.3390/microorganisms11010034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/07/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022] Open
Abstract
Microalgae are regarded as a promising source of biodiesel. In contrast with conventional crops currently used to produce commercial biodiesel, microalgae can be cultivated on non-arable land, besides having a higher growth rate and productivity. However, microalgal biodiesel is not yet regarded as economically competitive, compared to fossil fuels and crop-based biodiesel; therefore, it is not commercially produced. This review provides an overall perspective on technologies with the potential to increase efficiency and reduce the general costs of biodiesel production from microalgae. Opportunities and challenges for large-scale production are discussed. We present the current scenario of Brazilian research in the field and show a successful case in the research and development of microalgal biodiesel in open ponds by Petrobras. This publicly held Brazilian corporation has been investing in research in this sector for over a decade.
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Affiliation(s)
- Livia Marques Casanova
- Biotechnology Center-Bioinovar, Institute of Microbiology Paulo de Goes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, RJ, Brazil
- Correspondence: (L.M.C.); (A.B.V.)
| | | | - Thamiris de Souza Corrêa
- Biotechnology Center-Bioinovar, Institute of Microbiology Paulo de Goes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, RJ, Brazil
| | | | - Rafael Richard Joao
- Centro de Pesquisa Leopoldo Miguez de Mello, Petrobrás, Rio de Janeiro 21941-915, RJ, Brazil
| | - Andrew Macrae
- Sustainable Biotechnology and Microbial Bioinformatics Laboratory, Institute of Microbiology Paulo de Goes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, RJ, Brazil
| | - Alane Beatriz Vermelho
- Biotechnology Center-Bioinovar, Institute of Microbiology Paulo de Goes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, RJ, Brazil
- Correspondence: (L.M.C.); (A.B.V.)
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9
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Fierli D, Aranyos A, Barone ME, Parkes R, Touzet N. Influence of exogenous phytohormone supplementation on the pigment and fatty acid content of three marine diatoms. Appl Microbiol Biotechnol 2022; 106:6195-6207. [PMID: 36040486 DOI: 10.1007/s00253-022-12140-5] [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: 05/26/2022] [Revised: 08/09/2022] [Accepted: 08/13/2022] [Indexed: 11/24/2022]
Abstract
Diatoms are ubiquitous photosynthetic microorganisms with great potential for biotechnological applications. However, their commercialisation is hampered by production costs, requiring hence optimisation of cultivation methods. Phytohormones are plant growth regulators which may be used to influence physiological processes in microalgae, including diatoms. In this study, the model species Phaeodactylum tricornutum (Phaeodactylaceae) and two Irish isolates of Stauroneis sp. (Stauroneidaceae) and Nitzschia sp. (Bacillariaceae) were grown with varying amounts of the phytohormones indoleacetic acid (IAA), gibberellic acid (GA3), methyl jasmonate (MJ), abscisic acid (ABA) or salicylic acid (SA), and their influence on pigment and fatty acid profiles was monitored. The application of GA3 (200 mg/l) stimulated the growth of P. tricornutum which accumulated 52% more dry biomass compared to the control and concomitantly returned the highest eicosapentaenoic acid (EPA) yield (0.6 mg/l). The highest fucoxanthin yield (0.18 mg/l) was obtained for P. tricornutum cultivated with GA3 (2 mg/l) supplementation. In Stauroneis sp., SA (1 mg/l) had the most positive effect on EPA, the content of which was enhanced up to 45.7 μg/mg (4.6% of total dry weight). The SA (1 mg/l) treatment also boosted carotenogenesis in Nitzschia sp., leading to 1.7- and 14-fold increases in fucoxanthin and β-carotene compared to the control, respectively. Of note, MJ (0.5 mg/l) increased the EPA content of all diatom species compared to their controls. These results indicate that phytohormone-based treatments can be used to alter the pigment and lipid content of microalgae, which tend to respond in dose- and species-specific manners to individual compounds.Key points• Response to phytohormones was investigated in diatoms from distinct families.• MJ (0.5 mg/l) caused an increase in EPA cellular content in all three diatoms.• Phytohormones mostly caused dose-dependent and species-specific responses.
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Affiliation(s)
- David Fierli
- Department of Environmental Science, School of Science, Centre for Environmental Research, Innovation and Sustainability, CERIS, Atlantic Technological University Sligo, Sligo, Ireland.
| | - Anita Aranyos
- Department of Environmental Science, School of Science, Centre for Environmental Research, Innovation and Sustainability, CERIS, Atlantic Technological University Sligo, Sligo, Ireland
| | - Maria Elena Barone
- Department of Environmental Science, School of Science, Centre for Environmental Research, Innovation and Sustainability, CERIS, Atlantic Technological University Sligo, Sligo, Ireland
| | - Rachel Parkes
- Department of Environmental Science, School of Science, Centre for Environmental Research, Innovation and Sustainability, CERIS, Atlantic Technological University Sligo, Sligo, Ireland
| | - Nicolas Touzet
- Department of Environmental Science, School of Science, Centre for Environmental Research, Innovation and Sustainability, CERIS, Atlantic Technological University Sligo, Sligo, Ireland
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Ummalyma SB, Sirohi R, Udayan A, Yadav P, Raj A, Sim SJ, Pandey A. Sustainable microalgal biomass production in food industry wastewater for low-cost biorefinery products: a review. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2022; 22:1-23. [PMID: 35431709 PMCID: PMC9006494 DOI: 10.1007/s11101-022-09814-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 02/24/2022] [Indexed: 06/10/2023]
Abstract
Microalgae are recognized as cell factories enriched with biochemicals suitable as feedstock for bio-energy, food, feed, pharmaceuticals, and nutraceuticals applications. The industrial application of microalgae is challenging due to hurdles associated with mass cultivation and biomass recovery. The scale-up production of microalgal biomass in freshwater is not a sustainable solution due to the projected increase of freshwater demands in the coming years. Microalgae cultivation in wastewater is encouraged in recent years for sustainable bioeconomy from biorefinery processes. Wastewater from the food industry is a less-toxic growth medium for microalgal biomass production. Traditional wastewater treatment and management processes are expensive; hence it is highly relevant to use low-cost wastewater treatment processes with revenue generation through different products. Microalgae are accepted as potential biocatalysts for the bioremediation of wastewater. Microalgae based purification of wastewater technology could be a universal alternative solution for the recovery of resources from wastewater for low-cost biomass feedstock for industry. This review highlights the importance of microalgal biomass production in food processing wastewater, their characteristics, and different microalgal cultivation methods, followed by nutrient absorption mechanisms. Towards the end of the review, different microalgae biomass harvesting processes with biorefinery products, and void gaps that tend to hinder the biomass production with future perspectives will be intended. Thus, the review could claim to be valuable for sustainable microalgae biomass production for eco-friendly bioproduct conversions. Graphical abstract
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Affiliation(s)
- Sabeela Beevi Ummalyma
- DBT- Institute of Bioresources and Sustainable Development, An Autonomus Institute under Department of Biotechnology, Govt.of India, Takyelpat, Imphal, 795 001 India
| | - Ranjna Sirohi
- Department of Chemical & Biological Engineering, Korea University, Seoul, 136 713 Republic of Korea
- Centre for Energy and Environmental Sustainability, Lucknow, Uttar Pradesh 226 029 India
| | - Aswathy Udayan
- Department of Chemical Engineering, Hanyang University, Seoul, Republic of Korea
| | - Pooja Yadav
- Environmental Toxicology Division, CSIR-Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh 226 001 India
| | - Abhay Raj
- Environmental Toxicology Division, CSIR-Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh 226 001 India
| | - Sang Jun Sim
- Department of Chemical & Biological Engineering, Korea University, Seoul, 136 713 Republic of Korea
| | - Ashok Pandey
- Centre for Energy and Environmental Sustainability, Lucknow, Uttar Pradesh 226 029 India
- Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh 226 001 India
- Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun, Uttarakhand 248 007 India
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11
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Wang Z, Mou J, Qin Z, He Y, Sun Z, Wang X, Lin CSK. An auxin-like supermolecule to simultaneously enhance growth and cumulative eicosapentaenoic acid production in Phaeodactylum tricornutum. BIORESOURCE TECHNOLOGY 2022; 345:126564. [PMID: 34915115 DOI: 10.1016/j.biortech.2021.126564] [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: 10/11/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
Phaeodactylum tricornutum, a model alga, is well known for its ability to accumulate intracellular omega-3 eicosapentaenoic acid (EPA). However, P.tricornutum cells need to have a higher EPA content if they are to be used for industrial applications. In this study, an auxin-like supermolecule (SM) was synthesised and used for the cultivation of P. tricornutum. Results show that the addition of 1 ppm of SM significantly increased the P. tricornutum cell density and boosted the P. tricornutum biomass. The experimental group treated with 5 ppm of SM, had an EPA content of 31.7%, which was a 2.09-fold increase over the EPA content in the untreated group. Overall, our results demonstrated that SM can significantly improve the microalgal growth and EPA accumulation in P. tricornutum, providing a feasible strategy to achieve efficient and cost-effective EPA production.
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Affiliation(s)
- Zhenyao Wang
- School of Energy and Environment, City University of Hong Kong, Hong Kong, PR China; Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, PR China
| | - Jinhua Mou
- School of Energy and Environment, City University of Hong Kong, Hong Kong, PR China
| | - Zihao Qin
- School of Energy and Environment, City University of Hong Kong, Hong Kong, PR China
| | - Yuhe He
- School of Energy and Environment, City University of Hong Kong, Hong Kong, PR China; Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, PR China
| | - Zheng Sun
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai 201306, PR China
| | - Xiang Wang
- Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institute, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Carol Sze Ki Lin
- School of Energy and Environment, City University of Hong Kong, Hong Kong, PR China; Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, PR China.
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12
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Udayan A, Pandey AK, Sirohi R, Sreekumar N, Sang BI, Sim SJ, Kim SH, Pandey A. Production of microalgae with high lipid content and their potential as sources of nutraceuticals. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2022; 22:1-28. [PMID: 35095355 PMCID: PMC8783767 DOI: 10.1007/s11101-021-09784-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/07/2021] [Indexed: 05/05/2023]
Abstract
In the current global scenario, the world is under a serious dilemma due to the increasing human population, industrialization, and urbanization. The ever-increasing need for fuels and increasing nutritional problems have made a serious concern on the demand for nutrients and renewable and eco-friendly fuel sources. Currently, the use of fossil fuels is creating ecological and economic problems. Microalgae have been considered as a promising candidate for high-value metabolites and alternative renewable energy sources. Microalgae offer several advantages such as rapid growth rate, efficient land utilization, carbon dioxide sequestration, ability to cultivate in wastewater, and most importantly, they do not participate in the food crop versus energy crop dilemma or debate. An efficient microalgal biorefinery system for the production of lipids and subsequent byproduct for nutraceutical applications could well satisfy the need. But, the current microalgal cultivation systems for the production of lipids and nutraceuticals do not offer techno-economic feasibility together with energy and environmental sustainability. This review article has its main focus on the production of lipids and nutraceuticals from microalgae, covering the current strategies used for lipid production and the major high-value metabolites from microalgae and their nutraceutical importance. This review also provides insights on the future strategies for enhanced microalgal lipid production and subsequent utilization of microalgal biomass. GRAPHICAL ABSTRACT
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Affiliation(s)
- Aswathy Udayan
- Department of Chemical Engineering, Hanyang University, Seoul, South Korea
| | - Ashutosh Kumar Pandey
- School of Civil and Environmental Engineering, Yonsei University, Seoul, South Korea
| | - Ranjna Sirohi
- Department of Chemical and Biological Engineering, Korea University, Seoul, South Korea
- Centre for Energy and Environmental Sustainability, Lucknow, Uttar Pradesh 226 029 India
| | - Nidhin Sreekumar
- Accubits Invent, Accubits Technologies Inc., Thiruvananthapuram, Kerala 695 004 India
| | - Byoung-In Sang
- Department of Chemical Engineering, Hanyang University, Seoul, South Korea
| | - Sung Jun Sim
- Department of Chemical and Biological Engineering, Korea University, Seoul, South Korea
| | - Sang Hyoun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul, South Korea
| | - Ashok Pandey
- Centre for Energy and Environmental Sustainability, Lucknow, Uttar Pradesh 226 029 India
- Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh 226 001 India
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Udayan A, Sreekumar N, Arumugam M. Statistical optimization and formulation of microalga cultivation medium for improved omega 3 fatty acid production. SYSTEMS MICROBIOLOGY AND BIOMANUFACTURING 2022; 2:369-379. [PMID: 38624805 PMCID: PMC8743079 DOI: 10.1007/s43393-021-00069-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/25/2021] [Accepted: 11/25/2021] [Indexed: 11/29/2022]
Abstract
Microalgae are considered a rich source of high-value metabolites with an array of nutraceutical and pharmaceutical applications. Different strategies have been developed for cultivating microalgae at large-scale photobioreactors but high cost and low productivity are the major hurdles. Optimizing the composition of media for the cultivation of microalgae to induce biomass production and high-value metabolite accumulation has been considered as an important factor for sustainable product development. In this study, the effect of plant growth regulators together with basal microalgal cultivation medium on biomass, total lipid, and EPA production was studied using the Plackett-Burman model and Response surface methodology. The traditional one-factor-at-a-time optimization approach is laborious, time-consuming, and requires more experiments which makes the process and analysis more difficult. The Designed PB model was found to be significant for biomass (396 mg/L), lipid (254 mg/L), and EPA (5.6%) production with a P value < 0.05. The major objective of this study is to formulate a medium for EPA production without compromising the growth properties. Further, we had formulated a new media using RSM to achieve the goal and the significant variables selected were NaNO3, NaH2PO4, and IAA and was found to be significant with 16.72% EPA production with a biomass production of 893 mg/L with a P value < 0.05. The formulated medium can be used in large-scale cultivation systems which can enhance biomass production as well as the omega 3 fatty acid production in marine microalgae Nannochloropsis oceanica. Supplementary Information The online version contains supplementary material available at 10.1007/s43393-021-00069-1.
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Affiliation(s)
- Aswathy Udayan
- Microbial Processes and Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST), CSIR, Industrial Estate, Pappanamcode, Thiruvananthapuram, Kerala 695019 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Nidhin Sreekumar
- Accubits Invent, Accubits Technologies Inc., Thiruvananthapuram, Kerala 695004 India
| | - Muthu Arumugam
- Microbial Processes and Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST), CSIR, Industrial Estate, Pappanamcode, Thiruvananthapuram, Kerala 695019 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
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Seemashree M, Chauhan V, Sarada R. Phytohormone supplementation mediated enhanced biomass production, lipid accumulation, and modulation of fatty acid profile in Porphyridium purpureum and Dunaliella salina cultures. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2021.102253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Tomás-Pejó E, Morales-Palomo S, González-Fernández C. Microbial lipids from organic wastes: Outlook and challenges. BIORESOURCE TECHNOLOGY 2021; 323:124612. [PMID: 33418352 DOI: 10.1016/j.biortech.2020.124612] [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: 10/21/2020] [Revised: 12/18/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
Microbial lipids have recently drawn a lot of attention as renewable sources for biochemicals production. Strong research efforts have been addressed to efficiently use organic wastes as carbon source for microbial lipids, which would definitively increase the profitability of the production process and boost a bio-based economy. This review compiles interesting traits of oleaginous microorganisms and highlights current trends on microbial- and process-oriented approaches to maximize microbial oil production from inexpensive substrates like lignocellulosic sugars, volatile fatty acids and glycerol. Furthermore, downstream processes such as cell harvesting or lipid extraction, that are decisive for the cost-effectiveness of the process, are discussed. To underpin microbial oils within the so demanded circular economy, associated challenges, recent advances and possible industrial applications that are also identified in this review.
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Affiliation(s)
- E Tomás-Pejó
- IMDEA Energy, Biotechnological Processes Unit, Av. Ramón de la Sagra, 29835 Móstoles, Madrid, Spain.
| | - S Morales-Palomo
- IMDEA Energy, Biotechnological Processes Unit, Av. Ramón de la Sagra, 29835 Móstoles, Madrid, Spain
| | - C González-Fernández
- IMDEA Energy, Biotechnological Processes Unit, Av. Ramón de la Sagra, 29835 Móstoles, Madrid, Spain
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Effect of Phytohormones Supplementation under Nitrogen Depletion on Biomass and Lipid Production of Nannochloropsis oceanica for Integrated Application in Nutrition and Biodiesel. SUSTAINABILITY 2021. [DOI: 10.3390/su13020592] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Economic viability of biodiesel production relies mainly on the productivity of biomass and microalgal lipids. In addition, production of omega fatty acids is favorable for human nutrition. Thus, enhancement of lipid accumulation with high proportion of omega fatty acids could help the dual use of microalgal lipids in human nutrition and biodiesel production through biorefinery. In that context, phytohormones have been identified as a promising factor to increase biomass and lipids production. However, nitrogen limitation has been discussed as a potential tool for lipid accumulation in microalgae, which results in simultaneous growth retardation. The present study aims to investigate the combined effect of N-depletion and 3-Indoleacetic acid (IAA) supplementation on lipid accumulation of the marine eustigmatophyte Nannochloropsis oceanica as one of the promising microalgae for omega fatty acids production. The study confirmed that N-starvation stimulates the lipid content of N. oceanica. IAA enhanced both growth and lipid accumulation due to enhancement of pigments biosynthesis. Therefore, combination effect of IAA and nitrogen depletion showed gradual increase in the dry weight compared to the control. Lipid analysis showed lower quantity of saturated fatty acids (SFA, 26.25%) than the sum of monounsaturated (MUFA) and polyunsaturated fatty acids (PUFA). Under N-depletion, SFA decreased by 12.98% compared to the control, which recorded much reduction by increasing of IAA concentration. Reduction of SFA was in favor of PUFA, mainly omega-6 and omega-3 fatty acids which increased significantly due to IAA combined with N-depletion. Thus, the present study suggests a biorefinery approach for lipids extracted from N. oceanica for dual application in nutrition followed by biodiesel production.
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