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Zhou J, Wang M, Grimi N, Dar BN, Calvo-Lerma J, Barba FJ. Research progress in microalgae nutrients: emerging extraction and purification technologies, digestive behavior, and potential effects on human gut. Crit Rev Food Sci Nutr 2024; 64:11375-11395. [PMID: 37489924 DOI: 10.1080/10408398.2023.2237586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
Microalgae contain a diverse range of high-value compounds that can be utilized directly or fractionated to obtain components with even greater value-added potential. With the use of microalgae for food and medical purposes, there is a growing interest in their digestive properties and impact on human gut health. The extraction, separation, and purification of these components are key processes in the industrial application of microalgae. Innovative technologies used to extract and purify microalgal high-added-value compounds are key for their efficient utilization and evaluation. This review's comprehensive literature review was performed to highlight the main high-added-value microalgal components. The technologies for obtaining bioactive compounds from microalgae are being developed rapidly, various innovative, efficient, green separation and purification technologies are emerging, thus helping in the scaling-up and subsequent commercialization of microalgae products. Finally, the digestive behavior of microalgae nutrients and their health effects on the human gut microbiota were discussed. Microalgal nutrients exhibit favorable digestive properties and certain components have been shown to benefit gut microbes. The reality that must be faced is that multiple processes are still required for microalgae raw materials to final usable products, involving energy, time consumption and loss of ingredients, which still face challenges.
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Affiliation(s)
- Jianjun Zhou
- Research Group in Innovative Technologies for Sustainable Food (ALISOST), Department of Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
- Department of Biotechnology, Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Paterna, València, Spain
| | - Min Wang
- Research Group in Innovative Technologies for Sustainable Food (ALISOST), Department of Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
- Department of Biotechnology, Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Paterna, València, Spain
| | - Nabil Grimi
- Université de Technologie de Compiègne, ESCOM, TIMR (Integrated Transformations of Renewable Matter), Centre de Recherche Royallieu, Compiègne, France
| | - Basharat N Dar
- Department of Food Technology, Islamic University of Science & Technology, Awantipora, Kashmir, India
| | - Joaquim Calvo-Lerma
- Instituto Universitario de Ingeniería para el Desarrollo (IU-IAD), Universitat Politècnica de València, Valencia, Spain
| | - Francisco J Barba
- Research Group in Innovative Technologies for Sustainable Food (ALISOST), Department of Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine, Faculty of Pharmacy, Universitat de València, Burjassot, València, Spain
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2
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Najafi A, Heidary M, Martinez RM, Baby AR, Morowvat MH. Microalgae-based sunscreens as green and sustainable cosmetic products. Int J Cosmet Sci 2024. [PMID: 39295125 DOI: 10.1111/ics.13019] [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: 03/08/2024] [Revised: 06/27/2024] [Accepted: 08/13/2024] [Indexed: 09/21/2024]
Abstract
Recently, microalgal biotechnology has attained great acceptance among various researchers and industries for the green and sustainable production of different bioactive compounds. They provide multiple metabolites and molecules, making them an ideal candidate for cosmetic formulators and cosmeceutical companies. Nevertheless, numerous microalgae strains have never been studied for their pharmaceutical, nutritional and cosmeceutical purposes. Even less, only some have been cultivated on a large scale for bioactive compound production. Here, we have studied the cosmetic and cosmeceutical potentials of different microalgal strains for sunscreen as adjuvants and boosters in a green, carbon-neutral and sustainable platform. Other bioactive compounds were exploited, and the available products in the market and the published patents were also reviewed. From our review, it will be possible to combine the fundamental and practical aspects of microalgal biotechnology toward a greener and more sustainable future for the cosmetic/cosmeceutical areas of the photoprotection scenario.
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Affiliation(s)
- Asal Najafi
- Department of Pharmacology and Toxicology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mobina Heidary
- Department of Pharmacology and Toxicology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Renata Miliani Martinez
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - André Rolim Baby
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Mohammad Hossein Morowvat
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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3
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Arhar S, Pfaller R, Athenstaedt K, Lins T, Gogg-Fassolter G, Züllig T, Natter K. Retargeting of heterologous enzymes results in improved β-carotene synthesis in Saccharomyces cerevisiae. J Appl Microbiol 2024; 135:lxae224. [PMID: 39215465 DOI: 10.1093/jambio/lxae224] [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: 05/24/2024] [Revised: 07/11/2024] [Accepted: 08/29/2024] [Indexed: 09/04/2024]
Abstract
AIMS Carotenoids are a class of hydrophobic substances that are important as food and feed colorants and as antioxidants. The pathway for β-carotene synthesis has been expressed in various yeast species, albeit with rather low yields and titers. The inefficient conversion of phytoene to lycopene is often regarded as a bottleneck in the pathway. In this study, we aimed at the improvement of β-carotene production in Saccharomyces cerevisiae by specifically engineering the enzymatic reactions producing and converting phytoene. METHODS AND RESULTS We show that phytoene is stored in intracellular lipid droplets, whereas the enzyme responsible for its conversion, phytoene dehydrogenase, CrtI, is located at the endoplasmic reticulum, like the bifunctional enzyme CrtYB that catalyses the reaction before and after CrtI. To improve the accessibility of phytoene for CrtI and to delay its storage in lipid droplets, we tested the relocation of CrtI and CrtYB to mitochondria. However, only the retargeting of CrtYB resulted in an improvement of the β-carotene content, whereas the mitochondrial variant of CrtI was not functional. Surprisingly, a cytosolic variant of this enzyme, which we obtained through the elimination of its carboxy-terminal membrane anchor, caused an increase in β-carotene accumulation. Overexpression of this CrtI variant in an optimized medium resulted in a strain with a β-carotene content of 79 mg g-1 cell dry weight, corresponding to a 76-fold improvement over the starting strain. CONCLUSIONS The retargeting of heterologously expressed pathway enzymes improves β-carotene production in S. cerevisiae, implicating extensive inter-organellar transport phenomena of carotenoid precursors. In addition, strong overexpression of carotenoid biosynthetic enzymes and the optimization of cultivation conditions are required for high contents.
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Affiliation(s)
- Simon Arhar
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Humboldtstrasse 50/II, 8010 Graz, Austria
| | - Rupert Pfaller
- Wacker Chemie AG, Consortium für elektrochemische Industrie, Zielstattstraße 20, 81379 München, Germany
| | - Karin Athenstaedt
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Humboldtstrasse 50/II, 8010 Graz, Austria
| | - Thomas Lins
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Humboldtstrasse 50/II, 8010 Graz, Austria
| | - Gabriela Gogg-Fassolter
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Humboldtstrasse 50/II, 8010 Graz, Austria
| | - Thomas Züllig
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Humboldtstrasse 50/II, 8010 Graz, Austria
| | - Klaus Natter
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Humboldtstrasse 50/II, 8010 Graz, Austria
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Soriano-Jerez Y, Gallardo-Rodríguez JJ, López-Rosales L, García-Camacho F, Bressy C, Molina-Grima E, Cerón-García MC. Preventing biofouling in microalgal photobioreactors. BIORESOURCE TECHNOLOGY 2024; 407:131125. [PMID: 39025371 DOI: 10.1016/j.biortech.2024.131125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/15/2024] [Accepted: 07/15/2024] [Indexed: 07/20/2024]
Abstract
Photobioreactors (PBRs) are used to grow the light-requiring microalgae in diverse commercial processes. Often, they are operated as continuous culture over months period. However, with time, biofouling layer develops on the inner surfaces of their walls. The fouling layer formation deteriorates the PBR performance as foulants reduce light penetration in it. Light is essential for photosynthetic cultures, and a deterioration in lighting adversely impacts algae growth and biomass productivity. Fouling requires a frequent shutdown to clean the PBR and add to the environmental impact of the operation by generating many wastewaters contaminated with the cleaning chemicals. Antibiofouling coatings could be used to modify the surfaces of existing and future PBRs. Therefore, transparent and non-toxic fouling-release coatings, produced using hydrogel technology, could transform the existing PBRs into efficient and enduring microalgae culture systems, requiring only the application of the coating to the inner walls, without additional investments in new PBRs.
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Affiliation(s)
- Y Soriano-Jerez
- Department of Chemical Engineering and Research Centre CIAIMBITAL, University of Almería, 04120, Almería, Spain
| | - J J Gallardo-Rodríguez
- Department of Chemical Engineering and Research Centre CIAIMBITAL, University of Almería, 04120, Almería, Spain
| | - L López-Rosales
- Department of Chemical Engineering and Research Centre CIAIMBITAL, University of Almería, 04120, Almería, Spain
| | - F García-Camacho
- Department of Chemical Engineering and Research Centre CIAIMBITAL, University of Almería, 04120, Almería, Spain
| | - C Bressy
- Université de Toulon, MAPIEM, Toulon, France
| | - E Molina-Grima
- Department of Chemical Engineering and Research Centre CIAIMBITAL, University of Almería, 04120, Almería, Spain.
| | - M C Cerón-García
- Department of Chemical Engineering and Research Centre CIAIMBITAL, University of Almería, 04120, Almería, Spain
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Khalid S, Chaudhary K, Aziz H, Amin S, Sipra HM, Ansar S, Rasheed H, Naeem M, Onyeaka H. Trends in extracting protein from microalgae Spirulina platensis, using innovative extraction techniques: mechanisms, potentials, and limitations. Crit Rev Food Sci Nutr 2024:1-17. [PMID: 39096052 DOI: 10.1080/10408398.2024.2386448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Microalgal, species are recognized for their high protein content, positioning them as a promising source of this macronutrient. Spirulina platensis, in particular, is noteworthy for its rich protein levels (70 g/100 g dw), which are higher than those of meat and legumes. Incorporating this microalgae into food can provide various benefits to human health due to its diverse chemical composition, encompassing high amount of protein and elevated levels of minerals, phenolics, essential fatty acids, and pigments. Conventional techniques employed for protein extraction from S. platensis have several drawbacks, prompting the exploration of innovative extraction techniques (IETs) to overcome these limitations. Recent advancements in extraction methods include ultrasound-assisted extraction, microwave-assisted extraction, high-pressure-assisted extraction, supercritical fluid extraction, pulse-electric field assisted extraction, ionic liquids assisted extraction, and pressurized liquid extraction. These IETs have demonstrated efficiency in enhancing protein yield of high quality while maximizing biomass utilization. This comprehensive review delves into the mechanisms, applications, and drawbacks associated with implementing IETs in protein extraction from S. platensis. Notably, these innovative methods offer advantages such as increased extractability, minimized protein denaturation, reduced solvent consumption, and lower energy consumption. However, safety considerations and the synergistic effects of combined extraction methods warrant further exploration and investigation of their underlying mechanisms.
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Affiliation(s)
- Samran Khalid
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Kashmala Chaudhary
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Humera Aziz
- Department of Agricultural Sciences, College of Agriculture and Environmental Sciences, Government College University, Faisalabad, Pakistan
- Department of Environmental Sciences, College of Agriculture and Environmental Sciences, Government College University, Faisalabad, Pakistan
| | - Sara Amin
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Hassan Mehmood Sipra
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Sadia Ansar
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Husnain Rasheed
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Naeem
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Helen Onyeaka
- Department of Environmental Sciences, College of Agriculture and Environmental Sciences, Government College University, Faisalabad, Pakistan
- School of Chemical Engineering, University of Birmingham, Birmingham, UK
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6
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Coleman B, Vereecke E, Van Laere K, Novoveska L, Robbens J. Genetic Engineering and Innovative Cultivation Strategies for Enhancing the Lutein Production in Microalgae. Mar Drugs 2024; 22:329. [PMID: 39195445 DOI: 10.3390/md22080329] [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: 06/29/2024] [Revised: 07/18/2024] [Accepted: 07/19/2024] [Indexed: 08/29/2024] Open
Abstract
Carotenoids, with their diverse biological activities and potential pharmaceutical applications, have garnered significant attention as essential nutraceuticals. Microalgae, as natural producers of these bioactive compounds, offer a promising avenue for sustainable and cost-effective carotenoid production. Despite the ability to cultivate microalgae for its high-value carotenoids with health benefits, only astaxanthin and β-carotene are produced on a commercial scale by Haematococcus pluvialis and Dunaliella salina, respectively. This review explores recent advancements in genetic engineering and cultivation strategies to enhance the production of lutein by microalgae. Techniques such as random mutagenesis, genetic engineering, including CRISPR technology and multi-omics approaches, are discussed in detail for their impact on improving lutein production. Innovative cultivation strategies are compared, highlighting their advantages and challenges. The paper concludes by identifying future research directions, challenges, and proposing strategies for the continued advancement of cost-effective and genetically engineered microalgal carotenoids for pharmaceutical applications.
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Affiliation(s)
- Bert Coleman
- Aquatic Environment and Quality, Cell Blue Biotech and Food Integrity, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Jacobsenstraat 1, 8400 Ostend, Belgium
| | - Elke Vereecke
- Plant Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Caritasstraat 39, 9090 Melle, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Zwijnaarde, Belgium
- Center for Plant Systems Biology, Flemish Institute for Biotechnology (VIB), Technologiepark 71, 9052 Zwijnaarde, Belgium
| | - Katrijn Van Laere
- Plant Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Caritasstraat 39, 9090 Melle, Belgium
| | | | - Johan Robbens
- Aquatic Environment and Quality, Cell Blue Biotech and Food Integrity, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Jacobsenstraat 1, 8400 Ostend, Belgium
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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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Lystsova EA, Novokshonova AD, Khramtsov PV, Novikov AS, Dmitriev MV, Maslivets AN, Khramtsova EE. Reaction of Pyrrolobenzothiazines with Schiff Bases and Carbodiimides: Approach to Angular 6/5/5/5-Tetracyclic Spiroheterocycles. Molecules 2024; 29:2089. [PMID: 38731580 PMCID: PMC11085407 DOI: 10.3390/molecules29092089] [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: 04/02/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/13/2024] Open
Abstract
1H-Pyrrole-2,3-diones, fused at [e]-side with a heterocycle, are suitable platforms for the synthesis of various angular polycyclic alkaloid-like spiroheterocycles. Recently discovered sulfur-containing [e]-fused 1H-pyrrole-2,3-diones (aroylpyrrolobenzothiazinetriones) tend to exhibit unusual reactivity. Based on these peculiar representatives of [e]-fused 1H-pyrrole-2,3-diones, we have developed an approach to an unprecedented 6/5/5/5-tetracyclic alkaloid-like spiroheterocyclic system of benzo[d]pyrrolo[3',4':2,3]pyrrolo[2,1-b]thiazole via their reaction with Schiff bases and carbodiimides. The experimental results have been supplemented with DFT computational studies. The synthesized alkaloid-like 6/5/5/5-tetracyclic compounds have been tested for their biotechnological potential as growth stimulants in the green algae Chlorella vulgaris.
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Affiliation(s)
- Ekaterina A. Lystsova
- Department of Chemistry, Perm State University, ul. Bukireva, 15, 614990 Perm, Russia; (E.A.L.); (M.V.D.); (A.N.M.)
| | - Anastasia D. Novokshonova
- Department of Biology, Perm State University, ul. Bukireva, 15, 614990 Perm, Russia; (A.D.N.); (P.V.K.)
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, The Ural Branch of Russian Academy of Sciences, ul. Goleva, 13, 614081 Perm, Russia
| | - Pavel V. Khramtsov
- Department of Biology, Perm State University, ul. Bukireva, 15, 614990 Perm, Russia; (A.D.N.); (P.V.K.)
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, The Ural Branch of Russian Academy of Sciences, ul. Goleva, 13, 614081 Perm, Russia
| | - Alexander S. Novikov
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya nab. 7/9, 199034 St. Petersburg, Russia;
- Research Institute of Chemistry, Peoples’ Friendship University of Russia (RUDN University), ul. Miklukho-Maklaya, 6, 117198 Moscow, Russia
| | - Maksim V. Dmitriev
- Department of Chemistry, Perm State University, ul. Bukireva, 15, 614990 Perm, Russia; (E.A.L.); (M.V.D.); (A.N.M.)
| | - Andrey N. Maslivets
- Department of Chemistry, Perm State University, ul. Bukireva, 15, 614990 Perm, Russia; (E.A.L.); (M.V.D.); (A.N.M.)
| | - Ekaterina E. Khramtsova
- Department of Chemistry, Perm State University, ul. Bukireva, 15, 614990 Perm, Russia; (E.A.L.); (M.V.D.); (A.N.M.)
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Gaur S, Kaur M, Kalra R, Rene ER, Goel M. Application of microbial resources in biorefineries: Current trend and future prospects. Heliyon 2024; 10:e28615. [PMID: 38628756 PMCID: PMC11019186 DOI: 10.1016/j.heliyon.2024.e28615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 03/21/2024] [Accepted: 03/21/2024] [Indexed: 04/19/2024] Open
Abstract
The recent growing interest in sustainable and alternative sources of energy and bio-based products has driven the paradigm shift to an integrated model termed "biorefinery." Biorefinery framework implements the concepts of novel eco-technologies and eco-efficient processes for the sustainable production of energy and value-added biomolecules. The utilization of microbial resources for the production of various value-added products has been documented in the literatures. However, the appointment of these microbial resources in integrated resource management requires a better understanding of their status. The main of aim of this review is to provide an overview on the defined positioning and overall contribution of the microbial resources, i.e., algae, fungi and bacteria, for various bioprocesses and generation of multiple products from a single biorefinery. By utilizing waste material as a feedstock, biofuels can be generated by microalgae while sequestering environmental carbon and producing value added compounds as by-products. In parallel, fungal biorefineries are prolific producers of lignocellulose degrading enzymes along with pharmaceutically important novel products. Conversely, bacterial biorefineries emerge as a preferred platform for the transformation of standard cells into proficient bio-factories, developing chassis and turbo cells for enhanced target compound production. This comprehensive review is poised to offer an intricate exploration of the current trends, obstacles, and prospective pathways of microbial biorefineries, for the development of future biorefineries.
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Affiliation(s)
- Suchitra Gaur
- Sustainable Agriculture Program, The Energy and Resources Institute, TERI-Gram, Gurugram, 122001, Haryana, India
| | - Mehak Kaur
- Sustainable Agriculture Program, The Energy and Resources Institute, TERI-Gram, Gurugram, 122001, Haryana, India
| | - Rishu Kalra
- Sustainable Agriculture Program, The Energy and Resources Institute, TERI-Gram, Gurugram, 122001, Haryana, India
| | - Eldon R. Rene
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, Delft, 2601DA, the Netherlands
| | - Mayurika Goel
- Sustainable Agriculture Program, The Energy and Resources Institute, TERI-Gram, Gurugram, 122001, Haryana, India
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Lijassi I, Arahou F, Mansouri Z, Wahby A, Rhazi L, Wahby I. Comparative Analysis of Effect of Culture Conditions on Growth and C-Phycocyanin Production in Helical and Linear Spirulina. Curr Microbiol 2024; 81:152. [PMID: 38652305 DOI: 10.1007/s00284-024-03684-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 03/31/2024] [Indexed: 04/25/2024]
Abstract
Spirulina (Arthrospira and Spirulina spp.) has always been characterized by the helical trichomes, despite the existence of linear forms. A great debate is now open on the morphological flexibility of Spirulina, but it seems that both trichome morphology and C-phycocyanin (C-PC) concentrations are influenced by the culture conditions.This work compared the effect of some key growth factors (medium pH as well as its carbon, potassium, and salt contents) on the growth and C-PC concentration of helical and linear Spirulina strains. Further, two-phase strategies, including light and nitrogen variation, were applied to increase the in vivo C-PC accumulation into the trichomes. Results showed that high pH induced trichomes elongation and improved growth but decreased C-PC content (+ 65 and + 43% vs. -83 and -49%, for helical and linear strains, respectively). Variations in carbon and salt concentrations negatively impacted growth and C-PC content, even if the linear strain was more robust against these fluctuations. It was also interesting to see that potassium increasing improved growth and C-PC content for both strains.The variation of light wavelength during the enrichment phase (in the two-phase strategy) improved by 50% C-PC accumulation in trichomes, especially after blue lighting for 96 h. Similar result was obtained after 48 h of nitrogen reduction, while its removal from the medium caused trichomes disintegration. The current work highlights the robustness of linear Spirulina strain and presents an efficient and scalable way to increase C-PC in vivo without affecting growth.
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Affiliation(s)
- Ibtissam Lijassi
- Department of Biology, Faculty of Sciences, Research Center of Plant and Microbial Biotechnologies, Biodiversity and Environment, Laboratory of Botany and Valorisation of Plant and Fungal Resources, Mohamed V University, Rabat, Morocco.
| | - Fadia Arahou
- Department of Biology, Faculty of Sciences, Research Center of Plant and Microbial Biotechnologies, Biodiversity and Environment, Laboratory of Botany and Valorisation of Plant and Fungal Resources, Mohamed V University, Rabat, Morocco
| | - Zineb Mansouri
- Department of Biology, Faculty of Sciences, Research Center of Plant and Microbial Biotechnologies, Biodiversity and Environment, Laboratory of Botany and Valorisation of Plant and Fungal Resources, Mohamed V University, Rabat, Morocco
| | - Anass Wahby
- Laboratory of Water, Studies and Environmental Analysis, Faculty of Sciences, Abdelmalek Essadi University, Tetouan, Morocco
| | - Laila Rhazi
- Department of Biology, Faculty of Sciences, Research Center of Plant and Microbial Biotechnologies, Biodiversity and Environment, Laboratory of Botany and Valorisation of Plant and Fungal Resources, Mohamed V University, Rabat, Morocco
| | - Imane Wahby
- Department of Biology, Faculty of Sciences, Research Center of Plant and Microbial Biotechnologies, Biodiversity and Environment, Laboratory of Botany and Valorisation of Plant and Fungal Resources, Mohamed V University, Rabat, Morocco
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Rodríguez-Bolaños M, Vargas-Romero G, Jaguer-García G, Aguilar-Gonzalez ZI, Lagos-Romero V, Miranda-Astudillo HV. Antares I: a Modular Photobioreactor Suitable for Photosynthesis and Bioenergetics Research. Appl Biochem Biotechnol 2024; 196:2176-2195. [PMID: 37486539 PMCID: PMC11035454 DOI: 10.1007/s12010-023-04629-0] [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] [Accepted: 07/01/2023] [Indexed: 07/25/2023]
Abstract
Oxygenic photosynthesis is responsible for most of the fixation of atmospheric CO2. The microalgal community can transport atmospheric carbon into biological cycles in which no additional CO2 is created. This represents a resource to confront the actual climate change crisis. These organisms have evolved to adapt to several environments and different spectral distribution of light that may strongly influence their metabolism. Therefore, there is a need for development of photobioreactors specialized in addressing spectral optimization. Here, a multi-scale modular photobioreactor made from standard glass materials, ad hoc light circuits, and easily accessible, small commercial devices is described. The system is suitable to manage the principal culture variables of research in bioenergetics and photosynthesis. Its performance was tested by growing four evolutionary-distant microalgal species with different endosymbiotic scenarios: Chlamydomonas reinhardtii (Archaeplastida, green primary plastid), Polytomella parva (Archaeplastida, colorless plastid), Euglena gracilis (Discoba, green secondary plastid), and Phaeodactylum tricornutum (Stramenophiles, red secondary plastid). Our results show an improvement of biomass production, as compared to the traditional flask system. The modulation of the incident light spectra allowed us to observe a far-red adaptation in Euglena gracilis with a difference on paramylon production, and it also significantly increased the maximal cell density of the diatom species under green light. Together, these confirm that for photobioreactors with artificial light, manipulation of the light spectrum is a critical parameter for controlling the optimal performance, depending on the downstream goals.
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Affiliation(s)
- Mónica Rodríguez-Bolaños
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Gloria Vargas-Romero
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Girian Jaguer-García
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Zhaida I Aguilar-Gonzalez
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Verónica Lagos-Romero
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Héctor V Miranda-Astudillo
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.
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12
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Pathan SU, Kharwar A, Ibrahim MA, Singh SB, Bajaj P. Enzymes as indispensable markers in disease diagnosis. Bioanalysis 2024; 16:485-497. [PMID: 38530222 PMCID: PMC11216522 DOI: 10.4155/bio-2023-0207] [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: 10/10/2023] [Accepted: 03/05/2024] [Indexed: 03/27/2024] Open
Abstract
Enzymes have been used for disease diagnosis for many decades; however, advancements in technology like ELISA and flow cytometry-based detection have significantly increased their use and have increased the sensitivity of detection. Technological advancements in recombinant enzyme production have increased enzymatic stability, and the use of colorimetric-based and florescence-based assays has led to their increased use as biomarkers for disease detection. Enzymes like acid phosphatase, cathepsin, lactate dehydrogenase, thymidine kinase and creatine kinase are indispensable markers for diagnosing cancer, cardiovascular diseases and others. This minireview summarizes various enzymes used in disease diagnosis, their metabolic role, market value and potential as disease markers across various metabolic and other disorders.
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Affiliation(s)
- Shehabaz Usman Pathan
- National Institute of Pharmaceutical Education & Research, Balanagar, Hyderabad, 500037, India
| | - Akash Kharwar
- National Institute of Pharmaceutical Education & Research, Balanagar, Hyderabad, 500037, India
| | - Madaje Amir Ibrahim
- National Institute of Pharmaceutical Education & Research, Balanagar, Hyderabad, 500037, India
| | - Shashi Bala Singh
- National Institute of Pharmaceutical Education & Research, Balanagar, Hyderabad, 500037, India
| | - Priyanka Bajaj
- National Institute of Pharmaceutical Education & Research, Balanagar, Hyderabad, 500037, India
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13
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Buecker S, Gibis M, Bartmann L, Bussler S, Weiss J. Improving the colloidal stability of pectin-phycocyanin complexes by increasing the mixing ratio. J Food Sci 2024; 89:1086-1097. [PMID: 38224172 DOI: 10.1111/1750-3841.16917] [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: 09/18/2023] [Revised: 11/23/2023] [Accepted: 12/18/2023] [Indexed: 01/16/2024]
Abstract
In the food industry, the phycobiliprotein phycocyanin acts as a color pigment or the functional part of the superfood "Spirulina." It is industrially extracted from Arthrospira platensis. Current scientific research is focusing on finding complex partners with the potential to stabilize phycocyanin against its sensitivity toward heating and pH changes. Less attention is paid to the factors that influence complexation. This study focuses on the mixing ratio of phycocyanin with pectin. Phycocyanin concentration was fixed, and the mixing ratios ranged from 0.67 to 2.50 (pectin:phycocyanin). All samples were analyzed for their color, size, microscopic structure, zeta potential, and sedimentation stability before and after heating at 85°C. It was found that increasing the pectin content fostered the initial interactions with the protein and chromophore, resulting in a color shift from blue to turquoise. The size of the complexes decreased from several micrometers to nanometers with increasing pectin concentration. Those smaller complexes that were formed at a mixing ratio of 2.5 showed a higher colloidal stability over a period of ∼2 days. It is suggested that at a low mixing ratio (0.67), phycocyanin cannot be completely entrapped within the complexes and attaches to the complex surface as well. This results in aggregation and precipitation of the complexes upon heating. With increasing aggregation and consequently size as well as density of the complexes, sedimentation was accelerated. PRACTICAL APPLICATION: Under acidic conditions, as found in many foods and beverages (e.g., soft drinks, hard candy), phycocyanin tends to agglomerate and lose its color. Specifically heating, triggers denaturation, causing phycocyanin to aggregate and lose vital protein-chromophore interactions necessary to maintain a blue color. To prevent precipitation of the phycocyanin-pectin complexes, increasing the amount of pectin to a ratio of at least 2.0 is effective. This illustrates how adjusting the mixing ratio improves stability. Conversely, lower mixing ratios induce color precipitation, valuable in purification processes. Thus, practical use of biopolymer-complexes, requires determination of the optimal mixing ratio for the desired effect.
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Affiliation(s)
- Stephan Buecker
- Department of Food Material Science, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
| | - Monika Gibis
- Department of Food Material Science, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
| | - Laura Bartmann
- Department of Food Material Science, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
| | | | - Jochen Weiss
- Department of Food Material Science, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
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14
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Sidorowicz A, Yigit N, Wicht T, Stöger-Pollach M, Concas A, Orrù R, Cao G, Rupprechter G. Microalgae-derived Co 3O 4 nanomaterials for catalytic CO oxidation. RSC Adv 2024; 14:4575-4586. [PMID: 38318608 PMCID: PMC10839636 DOI: 10.1039/d4ra00343h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 01/30/2024] [Indexed: 02/07/2024] Open
Abstract
Efficient carbon monoxide oxidation is important to reduce its impacts on both human health and the environment. Following a sustainable synthesis route toward new catalysts, nanosized Co3O4 was synthesized based on extracts of microalgae: Spirulina platensis, Chlorella vulgaris, and Haematococcus pluvialis. Using the metabolites in the extract and applying different calcination temperatures (450, 650, 800 °C) led to Co3O4 catalysts with distinctly different properties. The obtained Co3O4 nanomaterials exhibited octahedral, nanosheet, and spherical morphologies with structural defects and surface segregation of phosphorous and potassium, originating from the extracts. The presence of P and K in the oxide nanostructures significantly improved their catalytic CO oxidation activity. When normalized by the specific surface area, the microalgae-derived catalysts exceeded a commercial benchmark catalyst. In situ studies revealed differences in oxygen mobility and carbonate formation during the reaction. The obtained insights may facilitate the development of new synthesis strategies for manufacturing highly active Co3O4 nanocatalysts.
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Affiliation(s)
- Agnieszka Sidorowicz
- Interdepartmental Centre of Environmental Engineering and Sciences, University of Cagliari 09123 Cagliari Italy
| | - Nevzat Yigit
- Institute of Materials Chemistry, TU Wien Getreidemarkt 9/BC 1060 Vienna Austria
| | - Thomas Wicht
- Institute of Materials Chemistry, TU Wien Getreidemarkt 9/BC 1060 Vienna Austria
| | - Michael Stöger-Pollach
- University Service Center for Transmission Electron Microscopy, TU Wien Wiedner Hauptstr. 8-10 1040 Vienna Austria
| | - Alessandro Concas
- Interdepartmental Centre of Environmental Engineering and Sciences, University of Cagliari 09123 Cagliari Italy
| | - Roberto Orrù
- Interdepartmental Centre of Environmental Engineering and Sciences, University of Cagliari 09123 Cagliari Italy
| | - Giacomo Cao
- Interdepartmental Centre of Environmental Engineering and Sciences, University of Cagliari 09123 Cagliari Italy
| | - Günther Rupprechter
- Institute of Materials Chemistry, TU Wien Getreidemarkt 9/BC 1060 Vienna Austria
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15
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Sun D, Wu S, Li X, Ge B, Zhou C, Yan X, Ruan R, Cheng P. The Structure, Functions and Potential Medicinal Effects of Chlorophylls Derived from Microalgae. Mar Drugs 2024; 22:65. [PMID: 38393036 PMCID: PMC10890356 DOI: 10.3390/md22020065] [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: 12/27/2023] [Revised: 01/20/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
Microalgae are considered to be natural producers of bioactive pigments, with the production of pigments from microalgae being a sustainable and economical strategy that promises to alleviate growing demand. Chlorophyll, as the main pigment of photosynthesis, has been widely studied, but its medicinal applications as an antioxidant, antibacterial, and antitumor reagent are still poorly understood. Chlorophyll is the most important pigment in plants and algae, which not only provides food for organisms throughout the biosphere, but also plays an important role in a variety of human and man-made applications. The biological activity of chlorophyll is closely related to its chemical structure; its specific structure offers the possibility for its medicinal applications. This paper reviews the structural and functional roles of microalgal chlorophylls, commonly used extraction methods, and recent advances in medicine, to provide a theoretical basis for the standardization and commercial production and application of chlorophylls.
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Affiliation(s)
- Danni Sun
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China; (D.S.); (S.W.); (X.L.); (C.Z.)
| | - Songlin Wu
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China; (D.S.); (S.W.); (X.L.); (C.Z.)
| | - Xiaohui Li
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China; (D.S.); (S.W.); (X.L.); (C.Z.)
| | - Baosheng Ge
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao 266580, China;
| | - Chengxu Zhou
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China; (D.S.); (S.W.); (X.L.); (C.Z.)
| | - Xiaojun Yan
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China;
| | - Roger Ruan
- Center for Biorefining, Department of Bioproducts and Biosystems Engineering, University of Minnesota-Twin Cities, Saint Paul, MN 55108, USA
| | - Pengfei Cheng
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China; (D.S.); (S.W.); (X.L.); (C.Z.)
- Center for Biorefining, Department of Bioproducts and Biosystems Engineering, University of Minnesota-Twin Cities, Saint Paul, MN 55108, USA
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16
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Sharma N, Shekhar P, Kumar V, Kaur H, Jayasena V. Microbial pigments: Sources, current status, future challenges in cosmetics and therapeutic applications. J Basic Microbiol 2024; 64:4-21. [PMID: 37861279 DOI: 10.1002/jobm.202300214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 09/19/2023] [Accepted: 09/23/2023] [Indexed: 10/21/2023]
Abstract
Color serves as the initial attraction and offers a pleasing aspect. While synthetic colorants have been popular for many years, their adverse environmental and health effects cannot be overlooked. This necessitates the search for natural colorants, especially microbial colorants, which have proven and more effective. Pigment-producing microorganisms offer substantial benefits. Natural colors improve product marketability and bestow additional benefits, including antioxidant, antiaging, anticancer, antiviral, antimicrobial, and antitumor properties. This review covers the various types of microbial pigments, the methods to enhance their production, and their cosmetic and therapeutic applications. We also address the challenges faced during the commercial production of microbial pigments and propose potential solutions.
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Affiliation(s)
- Nitin Sharma
- Chandigarh Group of Colleges, Landran, Mohali, Punjab, India
| | | | - Vikas Kumar
- University Institute of Biotechnology, Chandigarh University, Mohali, Punjab, India
| | - Harpreet Kaur
- Chandigarh Group of Colleges, Landran, Mohali, Punjab, India
| | - Vijay Jayasena
- School of Science and Health, Western Sydney University, Penrith, New South Wales, Australia
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17
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Rodriguez-Amaya DB, Esquivel P, Meléndez-Martínez AJ. Comprehensive Update on Carotenoid Colorants from Plants and Microalgae: Challenges and Advances from Research Laboratories to Industry. Foods 2023; 12:4080. [PMID: 38002140 PMCID: PMC10670565 DOI: 10.3390/foods12224080] [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: 09/11/2023] [Revised: 11/03/2023] [Accepted: 11/04/2023] [Indexed: 11/26/2023] Open
Abstract
The substitution of synthetic food dyes with natural colorants continues to be assiduously pursued. The current list of natural carotenoid colorants consists of plant-derived annatto (bixin and norbixin), paprika (capsanthin and capsorubin), saffron (crocin), tomato and gac fruit lycopene, marigold lutein, and red palm oil (α- and β-carotene), along with microalgal Dunaliella β-carotene and Haematococcus astaxanthin and fungal Blakeslea trispora β-carotene and lycopene. Potential microalgal sources are being sought, especially in relation to lutein, for which commercial plant sources are lacking. Research efforts, manifested in numerous reviews and research papers published in the last decade, have been directed to green extraction, microencapsulation/nanoencapsulation, and valorization of processing by-products. Extraction is shifting from conventional extraction with organic solvents to supercritical CO2 extraction and different types of assisted extraction. Initially intended for the stabilization of the highly degradable carotenoids, additional benefits of encapsulation have been demonstrated, especially the improvement of carotenoid solubility and bioavailability. Instead of searching for new higher plant sources, enormous effort has been directed to the utilization of by-products of the fruit and vegetable processing industry, with the application of biorefinery and circular economy concepts. Amidst enormous research activities, however, the gap between research and industrial implementation remains wide.
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Affiliation(s)
- Delia B. Rodriguez-Amaya
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas 13083-862, SP, Brazil
| | - Patricia Esquivel
- Centro Nacional de Ciencia y Tecnología (CITA), Universidad de Costa Rica, San José 11501, Costa Rica;
- Escuela de Tecnología de Alimentos, Universidad de Costa Rica, San José 11501, Costa Rica
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18
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Parveen A, Bhatnagar P, Gautam P, Bisht B, Nanda M, Kumar S, Vlaskin MS, Kumar V. Enhancing the bio-prospective of microalgae by different light systems and photoperiods. Photochem Photobiol Sci 2023; 22:2687-2698. [PMID: 37642905 DOI: 10.1007/s43630-023-00471-9] [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: 06/10/2023] [Accepted: 08/15/2023] [Indexed: 08/31/2023]
Abstract
Microalgae are a source of highly valuable bioactive metabolites and a high-potential feedstock for environmentally friendly and sustainable biofuel production. Recent research has shown that microalgae benefit the environment using less water than conventional crops while increasing oxygen production and lowering CO2 emissions. Microalgae are an excellent source of value-added compounds, such as proteins, pigments, lipids, and polysaccharides, as well as a high-potential feedstock for environmentally friendly and sustainable biofuel production. Various factors, such as nutrient concentration, temperature, light, pH, and cultivation method, effect the biomass cultivation and accumulation of high-value-added compounds in microalgae. Among the aforementioned factors, light is a key and essential factor for microalgae growth. Since photoautotrophic microalgae rely on light to absorb energy and transform it into chemical energy, light has a significant impact on algal growth. During micro-algal culture, spectral quality may be tailored to improve biomass composition for use in downstream bio-refineries and boost production. The light regime, which includes changes in intensity and photoperiod, has an impact on the growth and metabolic composition of microalgae. In this review, we investigate the effects of red, blue, and UV light wavelengths, different photoperiod, and different lighting systems on micro-algal growth and their valuable compounds. It also focuses on different micro-algal growth, photosynthesis systems, cultivation methods, and current market shares.
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Affiliation(s)
- Afreen Parveen
- Algal Research and Bioenergy Laboratory, Department of Food Science and Technology, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, 248002, India
| | - Pooja Bhatnagar
- Algal Research and Bioenergy Laboratory, Department of Food Science and Technology, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, 248002, India
| | - Pankaj Gautam
- Department of Microbiology, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, 248002, India
| | - Bhawna Bisht
- Algal Research and Bioenergy Laboratory, Department of Food Science and Technology, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, 248002, India
| | - Manisha Nanda
- Department of Microbiology, 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
| | - Mikhail S Vlaskin
- Joint Institute for High Temperatures of the Russian Academy of Sciences, 13/2 Izhorskaya St, Moscow, 125412, Russian Federation
| | - Vinod Kumar
- Algal Research and Bioenergy Laboratory, Department of Food Science and Technology, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, 248002, India.
- Graphic Era, Hill University, Dehradun, Uttarakhand, 248002, India.
- Peoples' Friendship, University of Russia (RUDN University), Moscow, 117198, Russian Federation.
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19
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Cao K, Cui Y, Sun F, Zhang H, Fan J, Ge B, Cao Y, Wang X, Zhu X, Wei Z, Yao Q, Ma J, Wang Y, Meng C, Gao Z. Metabolic engineering and synthetic biology strategies for producing high-value natural pigments in Microalgae. Biotechnol Adv 2023; 68:108236. [PMID: 37586543 DOI: 10.1016/j.biotechadv.2023.108236] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 07/16/2023] [Accepted: 08/11/2023] [Indexed: 08/18/2023]
Abstract
Microalgae are microorganisms capable of producing bioactive compounds using photosynthesis. Microalgae contain a variety of high value-added natural pigments such as carotenoids, phycobilins, and chlorophylls. These pigments play an important role in many areas such as food, pharmaceuticals, and cosmetics. Natural pigments have a health value that is unmatched by synthetic pigments. However, the current commercial production of natural pigments from microalgae is not able to meet the growing market demand. The use of metabolic engineering and synthetic biological strategies to improve the production performance of microalgal cell factories is essential to promote the large-scale production of high-value pigments from microalgae. This paper reviews the health and economic values, the applications, and the synthesis pathways of microalgal pigments. Overall, this review aims to highlight the latest research progress in metabolic engineering and synthetic biology in constructing engineered strains of microalgae with high-value pigments and the application of CRISPR technology and multi-omics in this context. Finally, we conclude with a discussion on the bottlenecks and challenges of microalgal pigment production and their future development prospects.
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Affiliation(s)
- Kai Cao
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China; School of Life Sciences and medicine, Shandong University of Technology, Zibo 255049, China
| | - Yulin Cui
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Fengjie Sun
- Department of Biological Sciences, School of Science and Technology, Georgia Gwinnett College, Lawrenceville, GA 30043, USA
| | - Hao Zhang
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Jianhua Fan
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Baosheng Ge
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao 266580, China
| | - Yujiao Cao
- School of Foreign Languages, Shandong University of Technology, Zibo 255090, China
| | - Xiaodong Wang
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Xiangyu Zhu
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China; School of Life Sciences and medicine, Shandong University of Technology, Zibo 255049, China
| | - Zuoxi Wei
- School of Life Sciences and medicine, Shandong University of Technology, Zibo 255049, China
| | - Qingshou Yao
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Jinju Ma
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Yu Wang
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Chunxiao Meng
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China.
| | - Zhengquan Gao
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China.
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20
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Ramesh CH, Prasastha VR, Shunmugaraj T, Karthick P, Mohanraju R, Koushik S, Murthy MVR. Diversity and impacts of macroalgae and cyanobacteria on multi-stressed coral reefs in the Gulf of Mannar Marine Biosphere Reserve. MARINE ENVIRONMENTAL RESEARCH 2023; 191:106161. [PMID: 37704539 DOI: 10.1016/j.marenvres.2023.106161] [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: 05/10/2023] [Revised: 08/15/2023] [Accepted: 08/30/2023] [Indexed: 09/15/2023]
Abstract
In India, intertidal seaweed resources are widely investigated and utilized for various applications, whereas reef-associated seaweed resources and their impacts on corals are lesser known. Thus, the present study investigated the diversity and impacts of macroalgae and cyanobacteria on coral reefs distributed in 21 islands under the Gulf of Mannar Marine Biosphere Reserve (GoMMBR), Tamil Nadu. About 140 macroalgal species representing 53 species of Chlorophyta, 32 species of Ochrophyta (Phaeophyta), and 55 species of Rhodophyta were recorded. Only three cyanobacterial species were documented during this study. All the documented species were categorized as edible, medicinal, smothering, bloom-forming, sediment trapping, and auxiliary. Diversity indices and multivariate analysis indicated latitudinal gradient distribution of macroalgae, where the maximum diversity was observed from the Mandapam group of Islands. The predominant genera observed in all the islands were Caulerpa, Halimeda, Turbinaria, and Sargassum. The updated checklist of seaweeds and cyanobacteria of India revealed 1118 and 258 species, correspondingly, on Indian coasts, including coral reef regions. The use of traditional morphology-based techniques in this study without molecular approaches to identify all of the specimens limits our investigation. Thus, molecular taxonomy is necessary to revalidate and confirm the actual genetic diversity existing in the Indian waters. Results of this study would benefit the scientific community and industries in various aspects, such as molecular taxonomy, biomass utilization, reef conservation, and industrial applications.
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Affiliation(s)
- C H Ramesh
- Biological Oceanography Division, CSIR-National Institute of Oceanography (CSIR-NIO), Dona Paula, 403004, Goa, India; National Centre for Coastal Research (NCCR), Ministry of Earth Sciences (MoES), NCCR Field Office, Mandapam, 623519, Tamil Nadu, India.
| | - V R Prasastha
- Animal Science and Fisheries Sciences Division, ICAR-Central Coastal Agricultural Research Institute, Velha Goa, 403402, Goa, India
| | - T Shunmugaraj
- National Centre for Coastal Research (NCCR), Ministry of Earth Sciences (MoES), NCCR Field Office, Mandapam, 623519, Tamil Nadu, India
| | - P Karthick
- Department of Ocean Science and Marine Biology, Pondicherry University, Brookshbad Campus, 744112, Port Blair, Andaman and Nicobar Islands, India
| | - R Mohanraju
- Department of Ocean Science and Marine Biology, Pondicherry University, Brookshbad Campus, 744112, Port Blair, Andaman and Nicobar Islands, India
| | - S Koushik
- National Centre for Coastal Research (NCCR), Ministry of Earth Sciences (MoES), NCCR Field Office, Mandapam, 623519, Tamil Nadu, India
| | - M V R Murthy
- National Centre for Coastal Research, Pallikaranai, Chennai, 600100, Tamil Nadu, India
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21
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Grande T, Vornoli A, Lubrano V, Vizzarri F, Raffaelli A, Gabriele M, Novoa J, Sandoval C, Longo V, Echeverria MC, Pozzo L. Chlamydomonas agloeformis from the Ecuadorian Highlands: Nutrients and Bioactive Compounds Profiling and In Vitro Antioxidant Activity. Foods 2023; 12:3147. [PMID: 37685081 PMCID: PMC10487033 DOI: 10.3390/foods12173147] [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: 06/30/2023] [Revised: 07/27/2023] [Accepted: 08/18/2023] [Indexed: 09/10/2023] Open
Abstract
Green microalgae are single-celled eukaryotic organisms that, in recent years, are becoming increasingly important in the nutraceutical, cosmetic, and pharmaceutical fields because of their high content of bioactive compounds. In this study, a particular green microalga was isolated from freshwater highland lakes of Ecuador and morphologically and molecularly identified as Chlamydomonas agloeformis (ChA), and it was studied for nutritional and nutraceutical properties. The phenolic composition and the fatty acids profile of lyophilized cells were determined. The methanolic extract was analyzed for the phenolic compounds profile and the antioxidant capacity by means of in vitro tests. Finally, Human Microvascular Endothelial Cells (HMEC-1) were exploited to explore the capacity of ChA to reduce the endothelial damage induced by oxidized LDL-mediated oxidative stress. The extract showed a good antioxidant ability thanks to the high content in polyphenolic compounds. The observed decrease in HMEC-1 cells endothelial damage also was probably due to the antioxidant compounds present in the extract. Based on the outcomes of our in vitro assays, ChA demonstrated to be a promising source of bioactive compounds possessing exceptional antioxidant capacities which make it a prospective functional food.
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Affiliation(s)
- Teresa Grande
- Institute of Agricultural Biology and Biotechnology-National Research Council (IBBA-CNR), Via Moruzzi 1, 56124 Pisa, Italy; (T.G.); (A.V.); (A.R.); (M.G.); (V.L.)
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Andrea Vornoli
- Institute of Agricultural Biology and Biotechnology-National Research Council (IBBA-CNR), Via Moruzzi 1, 56124 Pisa, Italy; (T.G.); (A.V.); (A.R.); (M.G.); (V.L.)
| | - Valter Lubrano
- Fondazione G. Monasterio, CNR/Regione Toscana, 56124 Pisa, Italy;
| | - Francesco Vizzarri
- National Agricultural and Food Centre Nitra, Hlohovecká 2, 95141 Lužianky, Slovakia;
| | - Andrea Raffaelli
- Institute of Agricultural Biology and Biotechnology-National Research Council (IBBA-CNR), Via Moruzzi 1, 56124 Pisa, Italy; (T.G.); (A.V.); (A.R.); (M.G.); (V.L.)
- Crop Science Research Center, Scuola Superiore Sant’Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Morena Gabriele
- Institute of Agricultural Biology and Biotechnology-National Research Council (IBBA-CNR), Via Moruzzi 1, 56124 Pisa, Italy; (T.G.); (A.V.); (A.R.); (M.G.); (V.L.)
| | - Jeniffer Novoa
- eCIER Research Group, Department of Biotechnology, Universidad Técnica del Norte, Av. 17 de Julio 5–21 y Gral. José María Córdova, Ibarra 100150, Ecuador; (J.N.); (C.S.); (M.C.E.)
| | - Carla Sandoval
- eCIER Research Group, Department of Biotechnology, Universidad Técnica del Norte, Av. 17 de Julio 5–21 y Gral. José María Córdova, Ibarra 100150, Ecuador; (J.N.); (C.S.); (M.C.E.)
| | - Vincenzo Longo
- Institute of Agricultural Biology and Biotechnology-National Research Council (IBBA-CNR), Via Moruzzi 1, 56124 Pisa, Italy; (T.G.); (A.V.); (A.R.); (M.G.); (V.L.)
| | - Maria Cristina Echeverria
- eCIER Research Group, Department of Biotechnology, Universidad Técnica del Norte, Av. 17 de Julio 5–21 y Gral. José María Córdova, Ibarra 100150, Ecuador; (J.N.); (C.S.); (M.C.E.)
| | - Luisa Pozzo
- Institute of Agricultural Biology and Biotechnology-National Research Council (IBBA-CNR), Via Moruzzi 1, 56124 Pisa, Italy; (T.G.); (A.V.); (A.R.); (M.G.); (V.L.)
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Devi A, Verma M, Saratale GD, Saratale RG, Ferreira LFR, Mulla SI, Bharagava RN. Microalgae: A green eco-friendly agents for bioremediation of tannery wastewater with simultaneous production of value-added products. CHEMOSPHERE 2023:139192. [PMID: 37353172 DOI: 10.1016/j.chemosphere.2023.139192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/09/2023] [Accepted: 06/10/2023] [Indexed: 06/25/2023]
Abstract
Tannery wastewater (TWW) has high BOD, COD, TS and variety of pollutants like chromium, formaldehydes, biocides, oils, chlorophenols, detergents and phthalates etc. Besides these pollutants, TWW also rich source of nutrients like nitrogen, phosphorus, carbon and sulphur etc. that can be utilized by microalgae during their growth. Direct disposal of TWW into the environment may lead severe environmental and health threats, therefore it needs to be treated adequately. Microalgae are considered as an efficient microorganisms (fast growing, adaptability and strain robustness, high surface to volume ratio, energy saving) for remediation of wastewaters with simultaneous biomass recovery and generation of value added products (VAPs) such as biofuels, biohydrogen, biopolymer, biofertilizer, pigments, bioethanol, bioactive compounds, nutraceutical etc. Most microalgae are photosynthetic and use CO2 and light energy to synthesise carbohydrate and reduces the emission of greenhouse gasses. Microalgae are also reported to remove heavy metals and antibiotics from wastewaters by bioaccumulation, biodegradation and biosorption. Microalgal treatment can be an alternative of conventional processes with generation of VAPs. The use of biotechnology in wastewater remediation with simultaneous generation of VAPs is trending. The validation of economic viability and environmental sustainability, life cycle assessment studies and techno-economic analysis is undergoing. Thus, in this review, the characteristics of TWW and microalgae are summarized, which manifest microalgae as potential candidates for wastewater remediation with simultaneous production of VAPs. Further, the treatment mechanisms, various factors (physical, chemical, mechanical and biological etc.) affecting treatment efficiency as well as challenges associated with microalgal remediation are also discussed.
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Affiliation(s)
- Anuradha Devi
- Laboratory of Bioremediation and Metagenomics Research (LBMR), Department of Environmental Microbiology (DEM), Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow-226 025 (U.P.), India
| | - Meenakshi Verma
- University Centre of Research and Development, Department of Chemistry, Chandigarh University, Gharuan, Mohali 140413, Panjab, India
| | - Ganesh Dattatraya Saratale
- Department of Food Science and Biotechnology, Dongguk University, Seoul, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Rijuta Ganesh Saratale
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, Gyeonggido 10326, Republic of Korea
| | - Luiz Fernando R Ferreira
- Waste and Effluent Treatment Laboratory, Institute of Technology and Research (ITP), Tiradentes University, Farolândia, Aracaju, SE 49032-490, Brazil; Graduate Program in Process Engineering, Tiradentes University (UNIT), Av. Murilo Dantas, 300, Farolândia, 49032-490 Aracaju, Sergipe, Brazil
| | - Sikandar I Mulla
- Department of Biochemistry, School of Applied Sciences, REVA University, Bangalore, India
| | - Ram Naresh Bharagava
- Laboratory of Bioremediation and Metagenomics Research (LBMR), Department of Environmental Microbiology (DEM), Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow-226 025 (U.P.), India.
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23
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Cabrera-Capetillo CA, Castillo-Baltazar OS, Petriz-Prieto MA, Guzmán-López A, Valdovinos-García EM, Bravo-Sánchez MG. Simulation and Economic Analysis of the Biotechnological Potential of Biomass Production from a Microalgal Consortium. Mar Drugs 2023; 21:321. [PMID: 37367646 DOI: 10.3390/md21060321] [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: 05/03/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/28/2023] Open
Abstract
The biomass of microalgae and the compounds that can be obtained from their processing are of great interest for various economic sectors. Chlorophyll from green microalgae has biotechnological applications of great potential in different industrial areas such as food, animal feed, pharmaceuticals, cosmetics, and agriculture. In this paper, the experimental, technical and economic performance of biomass production from a microalgal consortium (Scenedesmus sp., Chlorella sp., Schroderia sp., Spirulina sp., Pediastrum sp., and Chlamydomonas sp.) was investigated in three cultivation systems (phototrophic, heterotrophic and mixotrophic) in combination with the extraction of chlorophyll (a and b) on a large scale using simulation; 1 ha was established as the area for cultivation. In the laboratory-scale experimental stage, biomass and chlorophyll concentrations were determined for 12 days. In the simulation stage, two retention times in the photobioreactor were considered, which generated six case studies for the culture stage. Subsequently, a simulation proposal for the chlorophyll extraction process was evaluated. The highest microalgae biomass concentration was 2.06 g/L in heterotrophic culture, followed by mixotrophic (1.98 g/L). Phototrophic and mixotrophic cultures showed the highest chlorophyll concentrations of 20.5 µg/mL and 13.5 µg/mL, respectively. The simulation shows that higher biomass and chlorophyll production is attained when using the mixotrophic culture with 72 h of retention that we considered to evaluate chlorophyll production (a and b). The operating cost of the entire process is very high; the cultivation stage has the highest operating cost (78%), mainly due to the high energy consumption of the photobioreactors.
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Affiliation(s)
- Christian Ariel Cabrera-Capetillo
- Departamento de Posgrado, Doctorado en Ciencias de la Ingeniería, Tecnológico Nacional de México en Celaya, Antonio García Cubas #600 Pte., Colonia Alfredo V. Bonfil, Apartado Postal 57, Celaya 38010, Guanajuato, Mexico
| | | | - Moisés Abraham Petriz-Prieto
- División Académica Multidisciplinaria de Jalpa de Méndez (DAMJM), Universidad Juárez Autónoma de Tabasco (UJAT), Carret. Estatal Libre Villahermosa-Comalcalco Km. 27+000 s/n Ranchería Ribera Alta, Jalpa de Mendez C.P. 86205, Tabasco, Mexico
| | - Adriana Guzmán-López
- Departamento de Ingeniería Química, Tecnológico Nacional de México en Celaya, Antonio García Cubas #600 Pte., Colonia Alfredo V. Bonfil, Apartado Postal 57, Celaya 38010, Guanajuato, Mexico
| | - Esveidi Montserrat Valdovinos-García
- División Académica Multidisciplinaria de Jalpa de Méndez (DAMJM), Universidad Juárez Autónoma de Tabasco (UJAT), Carret. Estatal Libre Villahermosa-Comalcalco Km. 27+000 s/n Ranchería Ribera Alta, Jalpa de Mendez C.P. 86205, Tabasco, Mexico
| | - Micael Gerardo Bravo-Sánchez
- Departamento de Ingeniería Bioquímica, Tecnológico Nacional de México en Celaya, Antonio García Cubas #600 Pte., Colonia Alfredo V. Bonfil, Apartado Postal 57, Celaya 38010, Guanajuato, Mexico
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24
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Hankamer B, Pregelj L, O'Kane S, Hussey K, Hine D. Delivering impactful solutions for the bioeconomy. TRENDS IN PLANT SCIENCE 2023; 28:583-596. [PMID: 36941134 DOI: 10.1016/j.tplants.2023.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 02/13/2023] [Accepted: 02/20/2023] [Indexed: 05/22/2023]
Abstract
We are increasingly challenged to operate within our planetary boundaries, while delivering on United Nations (UN) Sustainable Development Goal (SDG) 2030 targets, and net-zero emissions by 2050. Failure to solve these challenges risks economic, social, political, climate, food, water, and fuel security. Therefore, new, scalable, and adoptable circular economy solutions are urgently required. The ability of plants to use light, capture CO2, and drive complex biochemistry is pivotal to delivering these solutions. However, harnessing this capability efficiently also requires robust accompanying economic, financial, market, and strategic analytics. A framework for this is presented here in the Commercialization Tourbillon. It supports the delivery of emerging plant biotechnologies and bio-inspired light-driven industry solutions within the critical 2030-2050 timeframe, to achieve validated economic, social, and environmental benefits.
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Affiliation(s)
- Ben Hankamer
- Institute of Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Lisette Pregelj
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Shane O'Kane
- Treble Cone Advisory Brisbane Qld, Suite 75, 12 Welsby Street, New Farm, QLD 4005, Australia
| | - Karen Hussey
- Centre for Policy Futures, Faculty of Humanities and Social Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Damian Hine
- Queensland Alliance for Agriculture and Food innovation, The University of Queensland, Brisbane, QLD 4072, Australia.
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25
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Zhuxin L, Biao Y, Badamkhand D, Yifan C, Honghong S, Xiao X, Mingqian T, Zhixiang W, Chongjiang C. Carboxylated chitosan improved the stability of phycocyanin under acidified conditions. Int J Biol Macromol 2023; 233:123474. [PMID: 36720327 DOI: 10.1016/j.ijbiomac.2023.123474] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/13/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023]
Abstract
Phycocyanin, a natural blue colorant, derived from Spirulina platensis, is now widely used in the food industry. However, its main drawbacks are loss of color and denature of structure in an acidic environment. In this study, carboxylated chitosan (0.1 %-1 % w/v) was chosen as an additive in acid-denatured phycocyanin for preserving phycocyanin's blue color and natural structure. Zeta-potential and particle size revealed that the carboxylated chitosan with high negative charge adsorbed on phycocyanin and provided stronger electrostatic repulsion to overcome the protein aggregation. Ultraviolet-visible absorption spectrum and fluorescence spectroscopy showed that the carboxylated chitosan recovered the microenvironment of tetrapyrrole chromophores and β-subunits, which led the secondary structure changed and the trimers depolymerized into the monomers changed by the acidic environment. Furthermore, Fourier transform infrared spectroscopy revealed highly negatively charged carboxylated chitosan with the groups (NH2, COOH and OH) could restored the microenvironment of tetrapyrrole chromophores and β-subunits of phycocyanin, and interact with phycocyanin through hydrogen bonding, NH bonding, ionic bonding and van der Waals, which led to a change in secondary structure and depolymerization of trimers into monomers. Our study demonstrated the carboxylated chitosan played a beneficial role in recovering the structure of acid-denatured phycocyanin and its blue color.
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Affiliation(s)
- Li Zhuxin
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Yuan Biao
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China.
| | - Dashnyam Badamkhand
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Cao Yifan
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Shan Honghong
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Xu Xiao
- School of Life Science, Shaoxing University, Shaoxing, Zhejiang 312000, China
| | - Tan Mingqian
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning 116034, China
| | - Wang Zhixiang
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Cao Chongjiang
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, China.
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26
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Melloni M, Sergi D, Simioni C, Passaro A, Neri LM. Microalgae as a Nutraceutical Tool to Antagonize the Impairment of Redox Status Induced by SNPs: Implications on Insulin Resistance. BIOLOGY 2023; 12:449. [PMID: 36979141 PMCID: PMC10044993 DOI: 10.3390/biology12030449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
Microalgae represent a growing innovative source of nutraceuticals such as carotenoids and phenolic compound which are naturally present within these single-celled organisms or can be induced in response to specific growth conditions. The presence of the unfavourable allelic variant in genes involved in the control of oxidative stress, due to one or more SNPs in gene encoding protein involved in the regulation of redox balance, can lead to pathological conditions such as insulin resistance, which, in turn, is directly involved in the pathogenesis of type 2 diabetes mellitus. In this review we provide an overview of the main SNPs in antioxidant genes involved in the promotion of insulin resistance with a focus on the potential role of microalgae-derived antioxidant molecules as novel nutritional tools to mitigate oxidative stress and improve insulin sensitivity.
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Affiliation(s)
- Mattia Melloni
- Department of Translational Medicine, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.M.); (D.S.)
| | - Domenico Sergi
- Department of Translational Medicine, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.M.); (D.S.)
| | - Carolina Simioni
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Fossato di Mortara 70, 44121 Ferrara, Italy;
- Laboratory for Technologies of Advanced Therapies (LTTA)—Electron Microscopy Center, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy
| | - Angelina Passaro
- Department of Translational Medicine, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.M.); (D.S.)
- Medical Department, University Hospital of Ferrara Arcispedale Sant’Anna, Via Aldo Moro 8, 44124 Ferrara, Italy
- Research and Innovation Section, University Hospital of Ferrara Arcispedale Sant’Anna, Via Aldo Moro 8, 44124 Ferrara, Italy
| | - Luca Maria Neri
- Department of Translational Medicine, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.M.); (D.S.)
- Laboratory for Technologies of Advanced Therapies (LTTA)—Electron Microscopy Center, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy
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27
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Tzima S, Georgiopoulou I, Louli V, Magoulas K. Recent Advances in Supercritical CO 2 Extraction of Pigments, Lipids and Bioactive Compounds from Microalgae. Molecules 2023; 28:molecules28031410. [PMID: 36771076 PMCID: PMC9920624 DOI: 10.3390/molecules28031410] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/19/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
Supercritical CO2 extraction is a green method that combines economic and environmental benefits. Microalgae, on the other hand, is a biomass in abundance, capable of providing a vast variety of valuable compounds, finding applications in the food industry, cosmetics, pharmaceuticals and biofuels. An extensive study on the existing literature concerning supercritical fluid extraction (SFE) of microalgae has been carried out focusing on carotenoids, chlorophylls, lipids and fatty acids recovery, as well as the bioactivity of the extracts. Moreover, kinetic models used to describe SFE process and experimental design are included. Finally, biomass pretreatment processes applied prior to SFE are mentioned, and other extraction methods used as benchmarks are also presented.
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28
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The antioxidant, wound healing properties and proteomic analysis of water extracts from the tropical cyanobacteria, Nostoc NIES-2111_MUM004. 3 Biotech 2023; 13:71. [PMID: 36742448 PMCID: PMC9895726 DOI: 10.1007/s13205-022-03448-0] [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: 06/25/2022] [Accepted: 12/23/2022] [Indexed: 02/05/2023] Open
Abstract
Cyanobacteria bioactive compounds are chemical treasure troves for product discovery and development. The wound healing effects and antioxidant capacities of water extracts from Nostoc NIES-2111_MUM004 were evaluated via in vitro wound scratch assay and three antioxidant assays respectively. Results showed that the water extracts were protein-rich and exhibited good antioxidant properties in ABTS radical scavenging (11.27 ± 0.205 mg TAE g-1 extract), Ferric reducing antioxidant power (1652.71 ± 110.71 mg TAE g-1 extract) and β-carotene bleaching assay (354.90 ± 31.80 mg TAE g-1 extract). Also, extracts were non-cytotoxic in concentrations up to 250 µg/mL as reflected in cytotoxicity assay. Importantly, water extracts showed considerable proliferation and migration activity at 125 µg/mL with wound closure rate as high as 42.67%. Statistical correlation revealed no significant relationship (p > 0.05) between protein fraction and the wound healing properties, confirming that phycobiliproteins were not solely responsible for wound healing activities. Subsequent Q-TOF-LCMS analysis identified six protein families involved in enhancing the proliferation and migration of epithelial cells. These findings are antecedent in the uncovering of continuous supplies of bioactive compounds from new and sustainable sources. Ultimately, enriching the microalgae menu for applications in pharmaceutical, nutraceutical and cosmeceuticals.
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29
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Takahashi T, Suzuki N, Ishii R, Toyoda S, Shibata M, Azuma Y, Kurose Y. Egg laying performance and egg quality with Paracoccus carotinifaciens supplementation containing high astaxanthin levels. Br Poult Sci 2023; 64:47-55. [PMID: 36129068 DOI: 10.1080/00071668.2022.2126933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
1. This study assessed 1) the effects of Paracoccus carotinifaciens supplementation containing high astaxanthin levels on egg production performance and quality, 2) dynamics of carotenoids levels in the egg yolk and 3) taste of astaxanthin-rich egg yolk.2. Laying hens were fed diets containing different levels of P. carotinifaciens-derived astaxanthin (ASX; 0, 2, 4, 8, or 16 ppm) for 28 d (experiment 1) or a diet containing 16 ppm astaxanthin for 28 d followed by a 0 ppm astaxanthin diet for 28 days (experiment 2).3. Production performance, egg quality and egg yolk carotenoid levels were examined in experiment 1 (Ex1) and the dynamics of egg yolk carotenoid levels and egg yolk taste in experiment 2 (Ex2).4. ASX supplementation did not affect production performance or egg quality. ASX levels in the egg yolk became saturated after seven days of 16 ppm supplementation and decreased to less than one-tenth of the saturated levels seven days after supplementation cessation. Supplementation with 16 ppm ASX for 28 d did not affect egg yolk taste.5. Supplementation resulted in the production of ASX-rich eggs for a brief period without affecting production performance, egg quality or taste. Understanding the time taken for the incorporation of ASX into egg yolks is beneficial for value-added egg production and may help in minimising supplementation costs.
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Affiliation(s)
- T Takahashi
- Laboratory of Animal Metabolism and Function, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
| | - N Suzuki
- Research and Development Department, Kanematsu Agritech Co. Ltd, Koshigaya, Saitama, Japan
| | - R Ishii
- Laboratory of Animal Metabolism and Function, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
| | - S Toyoda
- Laboratory of Animal Metabolism and Function, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
| | - M Shibata
- Laboratory of Animal Metabolism and Function, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
| | - Y Azuma
- Laboratory of Animal and Human Nutritional Physiology, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
| | - Y Kurose
- Laboratory of Animal Metabolism and Function, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
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30
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Sun H, Wang Y, He Y, Liu B, Mou H, Chen F, Yang S. Microalgae-Derived Pigments for the Food Industry. Mar Drugs 2023; 21:md21020082. [PMID: 36827122 PMCID: PMC9967018 DOI: 10.3390/md21020082] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/18/2023] [Accepted: 01/23/2023] [Indexed: 01/27/2023] Open
Abstract
In the food industry, manufacturers and customers have paid more attention to natural pigments instead of the synthetic counterparts for their excellent coloring ability and healthy properties. Microalgae are proven as one of the major photosynthesizers of naturally derived commercial pigments, gaining higher value in the global food pigment market. Microalgae-derived pigments, especially chlorophylls, carotenoids and phycobiliproteins, have unique colors and molecular structures, respectively, and show different physiological activities and health effects in the human body. This review provides recent updates on characteristics, application fields, stability in production and extraction processes of chlorophylls, carotenoids and phycobiliproteins to standardize and analyze their commercial production from microalgae. Potential food commodities for the pigment as eco-friendly colorants, nutraceuticals, and antioxidants are summarized for the target products. Then, recent cultivation strategies, metabolic and genomic designs are presented for high pigment productivity. Technical bottlenecks of downstream processing are discussed for improved stability and bioaccessibility during production. The production strategies of microalgal pigments have been exploited to varying degrees, with some already being applied at scale while others remain at the laboratory level. Finally, some factors affecting their global market value and future prospects are proposed. The microalgae-derived pigments have great potential in the food industry due to their high nutritional value and competitive production cost.
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Affiliation(s)
- Han Sun
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Institute for Carbon Neutrality, Shenzhen University, Shenzhen 518060, China
- Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China
| | - Yuxin Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Yongjin He
- College of Life Science, Fujian Normal University, Fuzhou 350117, China
| | - Bin Liu
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Institute for Carbon Neutrality, Shenzhen University, Shenzhen 518060, China
- Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China
| | - Haijin Mou
- Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China
| | - Feng Chen
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Institute for Carbon Neutrality, Shenzhen University, Shenzhen 518060, China
- Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China
- Correspondence: (F.C.); (S.Y.)
| | - Shufang Yang
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Institute for Carbon Neutrality, Shenzhen University, Shenzhen 518060, China
- Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China
- Correspondence: (F.C.); (S.Y.)
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Deepika C, Wolf J, Roles J, Ross I, Hankamer B. Sustainable Production of Pigments from Cyanobacteria. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2023; 183:171-251. [PMID: 36571616 DOI: 10.1007/10_2022_211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Pigments are intensely coloured compounds used in many industries to colour other materials. The demand for naturally synthesised pigments is increasing and their production can be incorporated into circular bioeconomy approaches. Natural pigments are produced by bacteria, cyanobacteria, microalgae, macroalgae, plants and animals. There is a huge unexplored biodiversity of prokaryotic cyanobacteria which are microscopic phototrophic microorganisms that have the ability to capture solar energy and CO2 and use it to synthesise a diverse range of sugars, lipids, amino acids and biochemicals including pigments. This makes them attractive for the sustainable production of a wide range of high-value products including industrial chemicals, pharmaceuticals, nutraceuticals and animal-feed supplements. The advantages of cyanobacteria production platforms include comparatively high growth rates, their ability to use freshwater, seawater or brackish water and the ability to cultivate them on non-arable land. The pigments derived from cyanobacteria and microalgae include chlorophylls, carotenoids and phycobiliproteins that have useful properties for advanced technical and commercial products. Development and optimisation of strain-specific pigment-based cultivation strategies support the development of economically feasible pigment biorefinery scenarios with enhanced pigment yields, quality and price. Thus, this chapter discusses the origin, properties, strain selection, production techniques and market opportunities of cyanobacterial pigments.
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Affiliation(s)
- Charu Deepika
- Institute of Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Juliane Wolf
- Institute of Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - John Roles
- Institute of Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Ian Ross
- Institute of Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Ben Hankamer
- Institute of Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia.
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Phanprasert Y, Maciszewski K, Gentekaki E, Dacks JB. Comparative genomic analysis illustrates evolutionary dynamics of multisubunit tethering complexes across green algal diversity. J Eukaryot Microbiol 2023; 70:e12935. [PMID: 35790054 DOI: 10.1111/jeu.12935] [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: 05/17/2022] [Revised: 06/21/2022] [Accepted: 06/29/2022] [Indexed: 01/13/2023]
Abstract
The chlorophyte algae are a dominant group of photosynthetic eukaryotes. Although many are photoautotrophs, there are also mixotrophs, heterotrophs, and even parasites. The physical characteristics of green algae are also highly diverse, varying greatly in size, shape, and habitat. Given this morphological and trophic diversity, we postulated that diversity may also exist in the protein components controlling intracellular movement of material by vesicular transport. One such set is the multisubunit tethering complexes (MTCs)-components regulating cargo delivery. As they span endomembrane organelles and are well-conserved across eukaryotes, MTCs should be a good proxy for assessing the evolutionary dynamics across the diversity of Chlorophyta. Our results reveal that while green algae carry a generally conserved and unduplicated complement of MTCs, some intriguing variation exists. Notably, we identified incomplete sets of TRAPPII, exocyst, and HOPS/CORVET components in all Mamiellophyceae, and what is more, not a single subunit of Dsl1 was found in Cymbomonas tetramitiformis. As the absence of Dsl1 has been correlated with having unusual peroxisomes, we searched for peroxisome biogenesis machinery, finding very few components in Cymbomonas, suggestive of peroxisome degeneration. Overall, we demonstrate conservation of MTCs across green algae, but with notable taxon-specific losses suggestive of unusual endomembrane systems.
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Affiliation(s)
| | - Kacper Maciszewski
- Institute of Evolutionary Biology, Faculty of Biology, Biological and Chemical Research Centre, University of Warsaw, Warsaw, Poland
| | - Eleni Gentekaki
- School of Science, Mae Fah Luang University, Chiang Rai, Thailand.,Gut Microbiome Research Group, Mae Fah Luang University, Chiang Rai, Thailand
| | - Joel B Dacks
- Division of Infectious Diseases, University of Alberta, Edmonton, Alberta, Canada.,Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.,Institute of Evolutionary Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic
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Algal Biomass Accumulation in Waste Digestate after Anaerobic Digestion of Wheat Straw. FERMENTATION 2022. [DOI: 10.3390/fermentation8120715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cultivation of microalgae in waste digestate is a promising cost-effective and environmentally friendly strategy for algal biomass accumulation and valuable product production. Two different digestates obtained as by-products of the anaerobic fermentation at 35 °C and 55 °C of wheat straw as a renewable source for biogas production in laboratory-scale bioreactors were tested as cultivation media for microalgae after pretreatment with active carbon for clarification. The strains of microalgae involved were the red marine microalga Porphyridium cruentum, which reached 4.7 mg/mL dry matter when grown in thermophilic digestate and green freshwater microalga-Scenedesmus acutus, whose growth was the highest—7.3 mg/mL in the mesophilic digestate. During cultivation, algae reduced the available nutrient components in the liquid digestate at the expense of increasing their biomass. This biomass can find further applications in cosmetics, pharmacy, and feed. The nitrogen and phosphorus uptake from both digestates during algae cultivation was monitored and modeled. The results led to the idea of nonlinear dynamic approximations with an exponential character. The purpose was to develop relatively simple nonlinear dynamic models based on available experimental data, as knowing the mechanisms of the considered processes can permit creating protocols for industrial-scale algal production toward obtaining economically valuable products from microalgae grown in organic waste digestate.
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Shlosberg Y, Schuster G, Adir N. Self-Enclosed Bio-Photoelectrochemical Cell in Succulent Plants. ACS APPLIED MATERIALS & INTERFACES 2022; 14:53761-53766. [PMID: 36416535 DOI: 10.1021/acsami.2c15123] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Harvesting an electrical current from biological photosynthetic systems (live cells or isolated complexes) is typically achieved by immersion of the system into an electrolyte solution. In this study, we show that the aqueous solution found in the tissues of succulent plants can be used directly as a natural bio-photo electrochemical cell. Here, the thick water-preserving outer cuticle of the succulent Corpuscularia lehmannii serves as the electrochemical container, the inner water content as the electrolyte into which an iron anode and platinum cathode are introduced. We produce up to 20 μA/cm2 bias-free photocurrent. When 0.5 V bias is added to the iron anode, the current density increases ∼10-fold, and evolved hydrogen gas can be collected with a Faradaic efficiency of 2.1 and 3.5% in dark or light, respectively. The addition of the photosystem II inhibitor 3-(3,4-dichlorophenyl)-1,1-dimethylurea inhibits the photocurrent, indicating that water oxidation is the primary source of electrons in the light. Two-dimensional fluorescence measurements show that NADH and NADPH serve as the major mediating electron transfer molecules, functionally connecting photosynthesis to metal electrodes. This work presents a method to simultaneously absorb CO2 while producing an electrical current with minimal engineering requirements.
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Affiliation(s)
- Yaniv Shlosberg
- Grand Technion Energy Program, Technion, Haifa 32000, Israel
- Schulich Faculty of Chemistry, Technion, Haifa 320000, Israel
| | - Gadi Schuster
- Grand Technion Energy Program, Technion, Haifa 32000, Israel
- Faculty of Biology, Technion, Haifa 32000 Israel
| | - Noam Adir
- Grand Technion Energy Program, Technion, Haifa 32000, Israel
- Schulich Faculty of Chemistry, Technion, Haifa 320000, Israel
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Bortolini DG, Maciel GM, Fernandes IDAA, Pedro AC, Rubio FTV, Branco IG, Haminiuk CWI. Functional properties of bioactive compounds from Spirulina spp.: Current status and future trends. FOOD CHEMISTRY: MOLECULAR SCIENCES 2022; 5:100134. [PMID: 36177108 PMCID: PMC9513730 DOI: 10.1016/j.fochms.2022.100134] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 08/19/2022] [Accepted: 09/17/2022] [Indexed: 11/17/2022]
Abstract
Functional foods that contain bioactive compounds (BC) and provide health benefits; Spirulina is a cyanobacterium considered blue microalgae rich in BC; BC from Spirulina have interesting health effects; Chlorophyll, carotenoids, and phycocyanin are natural corants from Spirulina; Spirulina has potential as an ingredient for application in functional foods.
Functional foods show non-toxic bioactive compounds that offer health benefits beyond their nutritional value and beneficially modulate one or more target functions in the body. In recent decades, there has been an increase in the trend toward consuming foods rich in bioactive compounds, less industrialized, and with functional properties. Spirulina, a cyanobacterium considered blue microalgae, widely found in South America, stands out for its rich composition of bioactive compounds, as well as unsaturated fatty acids and essential amino acids, which contribute to basic human nutrition and can be used as a protein source for diets free from animal products. In addition, they have colored compounds, such as chlorophylls, carotenoids, phycocyanins, and phenolic compounds which can be used as corants and natural antioxidants. In this context, this review article presents the main biological activities of spirulina as an anticancer, neuroprotective, probiotic, anti-inflammatory, and immune system stimulating effect. Furthermore, an overview of the composition of spirulina, its potential for different applications in functional foods, and its emerging technologies are covered in this review.
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Affiliation(s)
- Débora Gonçalves Bortolini
- Universidade Federal do Paraná (UFPR), Programa de Pós-Graduação em Engenharia de Alimentos (PPGEAL), Curitiba, Paraná CEP (81531-980), Brazil
| | - Giselle Maria Maciel
- Universidade Tecnológica Federal do Paraná (UTFPR), Departamento Acadêmico de Química e Biologia (DAQBi), Laboratório de Biotecnologia, Curitiba, Paraná CEP (81280-340), Brazil
| | - Isabela de Andrade Arruda Fernandes
- Universidade Federal do Paraná (UFPR), Programa de Pós-Graduação em Engenharia de Alimentos (PPGEAL), Curitiba, Paraná CEP (81531-980), Brazil
| | - Alessandra Cristina Pedro
- Universidade Federal do Paraná (UFPR), Programa de Pós-Graduação em Engenharia de Alimentos (PPGEAL), Curitiba, Paraná CEP (81531-980), Brazil
| | - Fernanda Thaís Vieira Rubio
- Universidade de São Paulo, Escola Politécnica, Department of Chemical Engineering, Main Campus, São Paulo, São Paulo 05508-080, Brazil
| | - Ivanise Guiherme Branco
- Universidade Estadual Paulista (UNESP), Departamento de Ciências Biológicas, Assis, São Paulo, São Paulo 19806-900, Brazil
| | - Charles Windson Isidoro Haminiuk
- Universidade Tecnológica Federal do Paraná (UTFPR), Departamento Acadêmico de Química e Biologia (DAQBi), Laboratório de Biotecnologia, Curitiba, Paraná CEP (81280-340), Brazil
- Corresponding author.
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Kumar Y, Kaur S, Kheto A, Munshi M, Sarkar A, Om Pandey H, Tarafdar A, Sindhu R, Sirohi R. Cultivation of microalgae on food waste: Recent advances and way forward. BIORESOURCE TECHNOLOGY 2022; 363:127834. [PMID: 36029984 DOI: 10.1016/j.biortech.2022.127834] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/18/2022] [Accepted: 08/21/2022] [Indexed: 06/15/2023]
Abstract
Microalgae are photosynthetic microbes that can synthesize compounds of therapeutic potential with wide applications in the food, bioprocessing and pharmaceutical sector. Recent research advances have therefore, focused on finding suitable economic substrates for the sustainable cultivation of microalgae. Among such substrates, food derived waste specifically from the starch, meat, dairy, brewery, oil and fruit and vegetable processing industries has gained popularity but poses numerous challenges. Pretreatment, dilution of waste water supernatants, mixing of different food waste streams, utilizing two-stage cultivation and other biorefinery approaches have been intensively explored for multifold improvement in microalgal biomass recovery from food waste. This review discusses the advances and challenges associated with cultivation of microalgae on food waste. The review suggests that there is a need to standardize different waste substrates in terms of general composition, genetically engineered microalgal strains, tackling process scalability issues, controlling wastewater toxicity and establishing a waste transportation chain.
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Affiliation(s)
- Yogesh Kumar
- Department of Food Engineering and Technology, SLIET, Longowal 148 106, Punjab, India
| | - Samandeep Kaur
- Department of Food Engineering and Technology, SLIET, Longowal 148 106, Punjab, India
| | - Ankan Kheto
- Department of Food Process Engineering, NIT, Rourkela, Odisha, India
| | - Mohona Munshi
- Division of Food Technology, Department of Chemical Engineering, VFSTR, Guntur, A.P, India
| | - Ayan Sarkar
- Department of Food Process Engineering, NIT, Rourkela, Odisha, India
| | - Hari Om Pandey
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243 122, Uttar Pradesh, India
| | - Ayon Tarafdar
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243 122, Uttar Pradesh, India
| | - Raveendran Sindhu
- Department of Food Technology, TKM Institute of Technology, Kollam 691 505, Kerala, India
| | - Ranjna Sirohi
- Department of Food Technology, School of Health Sciences and Technology, University of Petroleum and Energy Studies, Dehradun 248 007, Uttarakhand, India.
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Chalermthai B, Giwa A, Moheimani N, Taher H. Techno-economic strategies for improving economic viability of β-carotene extraction using natural oil and supercritical solvent: A comparative assessment. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Yadav K, Vasistha S, Nawkarkar P, Kumar S, Rai MP. Algal biorefinery culminating multiple value-added products: recent advances, emerging trends, opportunities, and challenges. 3 Biotech 2022; 12:244. [PMID: 36033914 PMCID: PMC9402873 DOI: 10.1007/s13205-022-03288-y] [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: 04/12/2022] [Accepted: 07/29/2022] [Indexed: 11/01/2022] Open
Abstract
Algal biorefinery is rising as a prominent solution to economically fulfill the escalating global requirement for nutrition, feed, fuel, and medicines. In recent years, scientific productiveness associated with microalgae-based studies has elaborated in multiplied aspects, while translation to the commercial level continues to be missing. The present microalgal biorefinery has a challenge in long-term viability due to escalated market price of algal-mediated biofuels and bioproducts. Advancements are required in a few aspects like improvement in algae processing, energy investment, and cost analysis of microalgae biorefinery. Therefore, it is essential to recognize the modern work by understanding the knowledge gaps and hotspots driving business scale up. The microalgae biorefinery integrated with energy-based products, bioactive and green compounds, focusing on a circular bioeconomy, is urgently needed. A detailed investigation of techno-economic analysis (TEA) and life cycle assessment (LCA) is important to increase the market value of algal products. This review discusses the valorization of algal biomass for the value-added application that holds a sustainable approach and cost-competitive algal biorefinery. The current industries, policies, technology transfer trends, challenges, and future economic outlook are discussed. This study is an overview through scientometric investigation attempt to describe the research development contributing to this rising field.
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Affiliation(s)
- Kushi Yadav
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Sector-125, Noida, Uttar Pradesh 201313 India
| | - Shrasti Vasistha
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Sector-125, Noida, Uttar Pradesh 201313 India
| | - Prachi Nawkarkar
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, 110067 India
| | - Shashi Kumar
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, 110067 India
| | - Monika Prakash Rai
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Sector-125, Noida, Uttar Pradesh 201313 India
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Calijuri ML, Silva TA, Magalhães IB, Pereira ASADP, Marangon BB, Assis LRD, Lorentz JF. Bioproducts from microalgae biomass: Technology, sustainability, challenges and opportunities. CHEMOSPHERE 2022; 305:135508. [PMID: 35777544 DOI: 10.1016/j.chemosphere.2022.135508] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/22/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
Microalgae are a potential feedstock for several bioproducts, mainly from its primary and secondary metabolites. Lipids can be converted in high-value polyunsaturated fatty acids (PUFA) such as omega-3, carbohydrates are potential biohydrogen (bioH2) sources, proteins can be converted into biopolymers (such as bioplastics) and pigments can achieve high concentrations of valuable carotenoids. This work comprehends the current practices for the production of such products from microalgae biomass, with insights on technical performance, environmental and economical sustainability. For each bioproduct, discussion includes insights on bioprocesses, productivity, commercialization, environmental impacts and major challenges. Opportunities for future research, such as wastewater cultivation, arise as environmentally attractive alternatives for sustainable production with high potential for resource recovery and valorization. Still, microalgae biotechnology stands out as an attractive topic for it research and market potential.
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Affiliation(s)
- Maria Lúcia Calijuri
- Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Department of Civil Engineering, Advanced Environmental Research Group - NPA, Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - Thiago Abrantes Silva
- Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Department of Civil Engineering, Advanced Environmental Research Group - NPA, Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Iara Barbosa Magalhães
- Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Department of Civil Engineering, Advanced Environmental Research Group - NPA, Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil.
| | - Alexia Saleme Aona de Paula Pereira
- Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Department of Civil Engineering, Advanced Environmental Research Group - NPA, Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Bianca Barros Marangon
- Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Department of Civil Engineering, Advanced Environmental Research Group - NPA, Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Letícia Rodrigues de Assis
- Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Department of Civil Engineering, Advanced Environmental Research Group - NPA, Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Juliana Ferreira Lorentz
- Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Department of Civil Engineering, Advanced Environmental Research Group - NPA, Av. Peter Henry Rolfs, S/n, Campus Universitário, Viçosa, Minas Gerais, 36570-900, Brazil
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Li Y, Li X, Liang ZP, Chang XY, Li FT, Wang XQ, Lian XJ. Progress of Microencapsulated Phycocyanin in Food and Pharma Industries: A Review. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27185854. [PMID: 36144588 PMCID: PMC9505125 DOI: 10.3390/molecules27185854] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 12/22/2022]
Abstract
Phycocyanin is a blue fluorescent protein with multi-bioactive functions. However, the multi-bioactivities and spectral stability of phycocyanin are susceptible to external environmental conditions, which limit its wide application. Here, the structure, properties, and biological activity of phycocyanin were discussed. This review highlights the significance of the microcapsules' wall materials which commonly protect phycocyanin from environmental interference and summarizes the current preparation principles and characteristics of microcapsules in food and pharma industries, including spray drying, electrospinning, electrospraying, liposome delivery, sharp-hole coagulation baths, and ion gelation. Moreover, the major technical challenge and corresponding countermeasures of phycocyanin microencapsulation are also appraised, providing insights for the broader application of phycocyanin.
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Spirulina (Arthrospira platensis) protein-rich extract as a natural emulsifier for oil-in-water emulsions: Optimization through a sequential experimental design strategy. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129264] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Sarkarat R, Mohamadnia S, Tavakoli O. Recent advances in non-conventional techniques for extraction of phycobiliproteins and carotenoids from microalgae. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1007/s43153-022-00256-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Production of photocurrent and hydrogen gas from intact plant leaves. Biosens Bioelectron 2022; 215:114558. [DOI: 10.1016/j.bios.2022.114558] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 07/02/2022] [Accepted: 07/07/2022] [Indexed: 11/23/2022]
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Zhou L, Li K, Duan X, Hill D, Barrow C, Dunshea F, Martin G, Suleria H. Bioactive compounds in microalgae and their potential health benefits. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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45
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Microalgal carotenoids: A promising alternative to synthetic dyes. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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46
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Recent Discoveries on Marine Organism Immunomodulatory Activities. Mar Drugs 2022; 20:md20070422. [PMID: 35877715 PMCID: PMC9324980 DOI: 10.3390/md20070422] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 11/29/2022] Open
Abstract
Marine organisms have been shown to be a valuable source for biologically active compounds for the prevention and treatment of cancer, inflammation, immune system diseases, and other pathologies. The advantage of studying organisms collected in the marine environment lies in their great biodiversity and in the variety of chemical structures of marine natural products. Various studies have focused on marine organism compounds with potential pharmaceutical applications, for instance, as immunomodulators, to treat cancer and immune-mediated diseases. Modulation of the immune system is defined as any change in the immune response that can result in the induction, expression, amplification, or inhibition of any phase of the immune response. Studies very often focus on the effects of marine-derived compounds on macrophages, as well as lymphocytes, by analyzing the release of mediators (cytokines) by using the immunological assay enzyme-linked immunosorbent assay (ELISA), Western blot, immunofluorescence, and real-time PCR. The main sources are fungi, bacteria, microalgae, macroalgae, sponges, mollusks, corals, and fishes. This review is focused on the marine-derived molecules discovered in the last three years as potential immunomodulatory drugs.
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Bio-Optical Measurements Indicative of Biogeochemical Transformations of Ocean Waters by Coral Reefs. REMOTE SENSING 2022. [DOI: 10.3390/rs14122892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The bio-optical properties of coral reef waters were examined across coral reef ecosystems not influenced by land-derived run-off, in the Great Barrier Reef lagoon (Heron Island) and the Coral Sea (the Coringa-Herald and Lihou Reefs). The aim was to determine whether the absorption properties, the concentration-specific absorption properties, and the phytoplankton and non-algal pigmented particle (NAP) absorption concentrations varied from the ocean waters flushing onto the reef at high tide to those waters on the reef or flushing off the reef at low tide. The optical and biogeochemical properties of on-reef waters systematically differed from the surrounding ocean waters. The chl a concentration values varied up to 7-fold and the NAP concentrations up to 29-fold; for the reef samples, the chl a values were on average 2 to 3 times lower than for the oceans whilst the NAP values were slightly higher on the reefs. The spectral absorption values of the chl a, NAP, and colored dissolved organic matter (CDOM) varied up to 6-fold for reef waters and up to 15-fold for ocean waters. The spectral absorption for chl a was up to 3-fold lower on the reef waters, the absorption by the CDOM was up to 2-fold higher and the NAP absorption was 1.6-fold higher on the reef waters. The concentration-specific absorption coefficients for chl a and NAP varied up to 9-fold in reef waters and up to 30-fold in ocean waters. In the case of Heron Island and Coringa-Herald cays, this concentration-specific absorption was on average 1.3 to 1.7-fold higher for chl a and up to 2-fold lower for NAP on the reefs. The Lihou Reef measurements were more ambiguous between the reef waters and ocean waters due to the complex nature and size of this reef. Based on our results, the assumption that the optical properties of on-reef waters and the adjacent ocean waters are the same was shown to be invalid. Ocean waters flowing on to the reef are higher in phytoplankton, whilst waters on the reef or flowing off the reefs are higher in CDOM and NAP. We found differences in the pico,- nano-, and microplankton distributions as well as in the ratios of photosynthetic to photoprotective pigments. The variability in the bio-optical properties between the reef waters and adjacent ocean waters has implications for the estimations of sunlight absorption along the water column, the UV penetration depth, the temperature distributions, and the nutrient and carbon fluxes in coral reef ecosystems. As Earth observation algorithms require proper parameterization for the water column effects when estimating benthic cover, the actual optical properties need to be used. These results will improve the use of Earth observation to systematically map the differences in the water quality between reefs and the adjacent ocean.
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Hotos GN, Antoniadis TI. The Effect of Colored and White Light on Growth and Phycobiliproteins, Chlorophyll and Carotenoids Content of the Marine Cyanobacteria Phormidium sp. and Cyanothece sp. in Batch Cultures. Life (Basel) 2022; 12:837. [PMID: 35743868 PMCID: PMC9225148 DOI: 10.3390/life12060837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/26/2022] [Accepted: 06/02/2022] [Indexed: 11/16/2022] Open
Abstract
Two local marine cyanobacteria, Phormidium sp. and Cyanothece sp., were batch-cultured under 18-19.5 °C, at 40 ppt salinity, using white LED light of low (40 μmol photons/m2/s) and high (160 μmol/m2/s) intensity and, additionally, blue, green and red LED light. Yield was highest in high white light in both species (2.15 g dw/L in Phormidium, 1.47 g/L in Cyanothece), followed by green light (1.25 g/L) in Cyanothece and low white and green (1.26-1.33 g/L) in Phormidium. Green light maximized phycocyanin in Phormidium (0.45 mg/mL), while phycoerythrin was enhanced (0.17 mg/mL) by blue light and allophycocyanin by all colors (~0.80 mg/mL). All colors maximized phycocyanin in Cyanothece (~0.32 mg/mL), while phycoerythrin and allophycocyanin peaked under green light (~0.138 and 0.38 mg/mL, respectively). In Phormidium, maximization of chlorophyll-a (9.3 μg/mL) was induced by green light, while total carotenoids and b-carotene (3.05 and 0.89 μg/mL, respectively) by high white light. In Cyanothece, both white light intensities along with green maximized chlorophyll-a (~9 μg/mL) while high white light and green maximized total carotenoids (2.6-3.0 μg/mL). This study strongly indicates that these cyanobacteria can be cultured at the first stage under white light to accumulate sufficient biomass and, subsequently, under colored light for enhancing phycobiliproteins.
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Affiliation(s)
- George N. Hotos
- Plankton Culture Laboratory, Department of Animal Production, Fisheries and Aquaculture, University of Patras, 30200 Messolonghi, Greece;
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Rigi M, Ojagh SM, Alishahi A, Hasani S. Characterizing and Developing the Antioxidant and Antimicrobial Properties of the Nano-Encapsulated Bioactive Compounds of Spirulina platensis in Liposome. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2022. [DOI: 10.1080/10498850.2022.2081951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Mahin Rigi
- Department of Fisheries, Faculty of Fisheries and the Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Seyed Mahdi Ojagh
- Department of Fisheries, Faculty of Fisheries and the Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
- Department of Seafood Processing, Faculty of Marine Sciences, Tarbiat Modares University, Noor, Iran
| | - Alireza Alishahi
- Department of Fisheries, Faculty of Fisheries and the Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Shirin Hasani
- Department of Fisheries, Faculty of Fisheries and the Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
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do Nascimento TC, Pinheiro PN, Fernandes AS, Caetano PA, Jacob-Lopes E, Zepka LQ. Insights on the Bioaccessibility of Natural Pigments from Diatom Chaetoceros calcitrans. Molecules 2022; 27:3305. [PMID: 35630782 PMCID: PMC9147772 DOI: 10.3390/molecules27103305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/05/2022] [Accepted: 03/09/2022] [Indexed: 02/04/2023] Open
Abstract
This study aimed to investigate the bioaccessibility of carotenoids and chlorophylls from the biomass of microalgae Chaetoceros calcitrans. The samples were submitted to an in vitro digestion protocol, and the compounds were determined by HPLC-PDA-MS/MS. A total of 13 compounds were identified in all tests. After in vitro digestion, the relative bioaccessibility of carotenoids and chlorophylls ranged from 4 to 58%. The qualitative profile of carotenoids reflected the initial sample, with all-E-zeaxanthin (57.2%) being the most bioaccessible compound, followed by all-E-neochrome (31.26%), the latter being reported for the first time in the micellar fraction. On the other hand, among the chlorophylls only pheophytin a (15.01%) was bioaccessible. Furthermore, a chlorophyll derivative (Hydroxypheophytin a’) was formed after in vitro digestion. Considering all compounds, xanthophylls (12.03%) and chlorophylls (12.22%) were significantly (p < 0.05) more bioaccessible than carotenes (11.22%). Finally, the considerable individual bioaccessibilities found, especially for zeaxanthin, demonstrate the bioactive potential of this bioresource. However, the large reduction in the totality of compounds after in vitro digestion suggests that additional technological strategies should be explored in the future to increase the efficiency of micellarization and enhance its bioactive effects.
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Affiliation(s)
| | | | | | | | | | - Leila Q. Zepka
- Department of Food Technology and Science, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, RS, Brazil; (T.C.d.N.); (P.N.P.); (A.S.F.); (P.A.C.); (E.J.-L.)
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