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Eladl SN, Elnabawy AM, Eltanahy EG. Recent biotechnological applications of value-added bioactive compounds from microalgae and seaweeds. BOTANICAL STUDIES 2024; 65:28. [PMID: 39312045 PMCID: PMC11420431 DOI: 10.1186/s40529-024-00434-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Accepted: 08/24/2024] [Indexed: 09/26/2024]
Abstract
Microalgae and seaweed have been consumed as food for several decades to combat starvation and food shortages worldwide. The most famous edible microalgae species are Nostoc, Spirulina, and Aphanizomenon, in addition to seaweeds, which are used in traditional medicine and food, such as Nori, which is one of the most popular foods containing Pyropia alga as a major ingredient. Recently, many applications use algae-derived polysaccharides such as agar, alginate, carrageenan, cellulose, fucoidan, mannan, laminarin, ulvan, and xylan as gelling agents in food, pharmaceuticals, and cosmetics industries. Moreover, pigments (carotenoids particularly astaxanthins, chlorophylls, and phycobilins), minerals, vitamins, polyunsaturated fatty acids, peptides, proteins, polyphenols, and diterpenes compounds are accumulated under specific cultivation and stress conditions in the algal cells to be harvested and their biomass used as a feedstock for the relevant industries and applications. No less critical is the use of algae in bioremediation, thus contributing significantly to environmental sustainability.This review will explore and discuss the various applications of microalgae and seaweeds, emphasising their role in bioremediation, recent products with algal added-value compounds that are now on the market, and novel under-developing applications such as bioplastics and nanoparticle production. Nonetheless, special attention is also drawn towards the limitations of these applications and the technologies applied, and how they may be overcome.
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Affiliation(s)
- Salma N Eladl
- Algae Biotechnology and Water Quality Lab, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
| | - Aya M Elnabawy
- Algae Biotechnology and Water Quality Lab, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
| | - Eladl G Eltanahy
- Algae Biotechnology and Water Quality Lab, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt.
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Maltseva I, Yakoviichuk A, Maltseva S, Cherkashina S, Kulikovskiy M, Maltsev Y. Biochemical and Antioxidant Characteristics of Chlorococcum oleofaciens (Chlorophyceae, Chlorophyta) under Various Cultivation Conditions. PLANTS (BASEL, SWITZERLAND) 2024; 13:2413. [PMID: 39273897 PMCID: PMC11397108 DOI: 10.3390/plants13172413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 08/20/2024] [Accepted: 08/22/2024] [Indexed: 09/15/2024]
Abstract
The functional state of enrichment cultures of the Chlorophycean strain Chlorococcum oleofaciens CAMU MZ-Ch4 under various cultivation conditions was studied. Experiments with different aeration conditions, cultivation durations, and nitrogen and phosphorus concentrations in the medium were carried out to evaluate the growth dynamics of the strain and its biochemical characteristics. The contents of chlorophylls, carotenoids, proteins, lipids, retinol, α-tocopherol, ascorbic acid, phenolic compounds, lipid peroxidation products, antioxidant enzymes (glutathione peroxidase, catalase, superoxide dismutase), and succinate dehydrogenase activity were measured. The lipid content on the fully supplemented Bold's basal medium increased to 381.03 mg g-1 dry weight at the late stationary growth phase. This value is 1.3-2.8 times higher than in other experiments. The use of aeration was associated with an increased content of proteins at 283.56 mg g-1 and of carotenoids at 2.12 mg g-1. Also, cultures at the early stationary growth phase with aeration showed the ability to accumulate phenolic compounds and ascorbic acid in amounts up to 0.32 mg g-1 and 0.19 mg g-1. The 74-day-old cultures had the highest contents of retinol (0.16 mg g-1) and α-tocopherol (0.68 mg g-1). Growth in nitrogen- and phosphorus-depleted media increased catalase and superoxide dismutase activity. A comprehensive analysis of all data showed that the antioxidant defence system is stress-resistant and flexible under varying aeration conditions and nitrogen and phosphorus availabilities. Thus, the strain CAMU MZ-Ch4 can be considered a potential producer of lipids, pigments, proteins, and vitamins under various culturing conditions.
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Affiliation(s)
- Irina Maltseva
- Faculty of Natural Sciences, Melitopol State University, 72312 Melitopol
| | - Aleksandr Yakoviichuk
- Faculty of Natural Sciences, Melitopol State University, 72312 Melitopol
- K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 127276 Moscow, Russia
| | - Svetlana Maltseva
- K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 127276 Moscow, Russia
| | | | - Maxim Kulikovskiy
- K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 127276 Moscow, Russia
| | - Yevhen Maltsev
- K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 127276 Moscow, Russia
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Bérard JB, Ouk TS, Sol V, Lefoulon L, Landolt C, Grenier K, Saad N, Robert E, Sibat M, Schreiber N, Guenin S, Picot L. Phototoxicity of the Ethanolic Extract of Skeletonema marinoi for the Dermocosmetic Improvement of Acne. Mar Drugs 2024; 22:343. [PMID: 39195459 DOI: 10.3390/md22080343] [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: 07/11/2024] [Revised: 07/25/2024] [Accepted: 07/26/2024] [Indexed: 08/29/2024] Open
Abstract
Acne is one of the most common dermatological conditions, peaking during adolescence and early adulthood, affecting about 85% of individuals aged 12-24. Although often associated with teenage years, acne can occur at any age, impacting over 25% of women and 12% of men in their forties. Treatment strategies vary depending on the severity, including the use of topical gels or creams containing benzoyl peroxide and retinoids, antibiotics, and systemic or topical isotretinoin. However, these treatments can cause irritation, allergies, and other toxic side effects. Currently, there is no natural-based alternative for antibacterial photodynamic therapy targeting acne using marine drugs or extracts. Through a bioguided screening approach, we identified the ethanol extract of Skeletonema marinoi as highly phototoxic against three bacterial species associated with acne-Cutibacterium acnes, Staphylococcus aureus, and Staphylococcus epidermidis. This extract exhibited phototoxicity in planktonic bacteria under white and red light, disrupted bacterial biofilms, reduced sebum production but also showed phototoxicity in keratinocytes, highlighting the importance of the specific targeting of treatment areas. Further investigations, including fractionation and high-resolution structural analysis, linked the observed phototoxicity to a high concentration of pheophorbide a in the extract. Given its notable in vitro efficacy, this extract holds promising potential for clinical evaluation to manage mild acne. This discovery paves the way for further exploration of Skeletonema pigment extracts, extending their potential applications beyond acne phototherapy to include dermocosmetics, veterinary medicine, and other phototherapy uses.
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Affiliation(s)
- Jean-Baptiste Bérard
- French Research Institute for Exploitation of the Sea (IFREMER), PHYTOX, 44000 Nantes, France
| | - Tan-Sothea Ouk
- Laboratoire des Agroressources, Biomolécules et Chimie pour l'Innovation en Santé (LABCiS), University of Limoges, UR 22722, 87000 Limoges, France
| | - Vincent Sol
- Laboratoire des Agroressources, Biomolécules et Chimie pour l'Innovation en Santé (LABCiS), University of Limoges, UR 22722, 87000 Limoges, France
| | - Louise Lefoulon
- French Research Institute for Exploitation of the Sea (IFREMER), PHYTOX, 44000 Nantes, France
| | - Cornelia Landolt
- Laboratoire des Agroressources, Biomolécules et Chimie pour l'Innovation en Santé (LABCiS), University of Limoges, UR 22722, 87000 Limoges, France
| | - Karine Grenier
- Laboratoire des Agroressources, Biomolécules et Chimie pour l'Innovation en Santé (LABCiS), University of Limoges, UR 22722, 87000 Limoges, France
| | - Naima Saad
- Laboratoire des Agroressources, Biomolécules et Chimie pour l'Innovation en Santé (LABCiS), University of Limoges, UR 22722, 87000 Limoges, France
| | - Elise Robert
- French Research Institute for Exploitation of the Sea (IFREMER), PHYTOX, 44000 Nantes, France
| | - Manoëlla Sibat
- French Research Institute for Exploitation of the Sea (IFREMER), PHYTOX, 44000 Nantes, France
| | - Nathalie Schreiber
- French Research Institute for Exploitation of the Sea (IFREMER), PHYTOX, 44000 Nantes, France
| | | | - Laurent Picot
- UMR CNRS 7266 LIENSs, La Rochelle Université, 17042 La Rochelle, France
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Anthony CJ, Lock C, Bentlage B. Rapid, high-throughput phenotypic profiling of endosymbiotic dinoflagellates (Symbiodiniaceae) using benchtop flow cytometry. PLoS One 2023; 18:e0290649. [PMID: 37708174 PMCID: PMC10501577 DOI: 10.1371/journal.pone.0290649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 08/05/2023] [Indexed: 09/16/2023] Open
Abstract
Endosymbiotic dinoflagellates (Family Symbiodiniaceae) are the primary producer of energy for many cnidarians, including corals. The intricate coral-dinoflagellate symbiotic relationship is becoming increasingly important under climate change, as its breakdown leads to mass coral bleaching and often mortality. Despite methodological progress, assessing the phenotypic traits of Symbiodiniaceae in-hospite remains a complex task. Bio-optics, biochemistry, or "-omics" techniques are expensive, often inaccessible to investigators, or lack the resolution required to understand single-cell phenotypic states within endosymbiotic dinoflagellate assemblages. To help address this issue, we developed a protocol that collects information on cell autofluorescence, shape, and size to simultaneously generate phenotypic profiles for thousands of Symbiodiniaceae cells, thus revealing phenotypic variance of the Symbiodiniaceae assemblage to the resolution of single cells. As flow cytometry is adopted as a robust and efficient method for cell counting, integration of our protocol into existing workflows allows researchers to acquire a new level of resolution for studies examining the acclimation and adaptation strategies of Symbiodiniaceae assemblages.
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Affiliation(s)
| | - Colin Lock
- Marine Laboratory, University of Guam, Mangilao, Guam, United States of America
| | - Bastian Bentlage
- Marine Laboratory, University of Guam, Mangilao, Guam, United States of America
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Calabrone L, Carlini V, Noonan DM, Festa M, Ferrario C, Morelli D, Macis D, Fontana A, Pistelli L, Brunet C, Sansone C, Albini A. Skeletonema marinoi Extracts and Associated Carotenoid Fucoxanthin Downregulate Pro-Angiogenic Mediators on Prostate Cancer and Endothelial Cells. Cells 2023; 12:cells12071053. [PMID: 37048126 PMCID: PMC10093511 DOI: 10.3390/cells12071053] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 03/17/2023] [Accepted: 03/24/2023] [Indexed: 04/03/2023] Open
Abstract
The exploration of natural preventive molecules for nutraceutical and pharmaceutical use has recently increased. In this scenario, marine microorganisms represent an underestimated source of bioactive products endowed with beneficial effects on health that include anti-oxidant, anti-inflammatory, differentiating, anti-tumor, and anti-angiogenic activities. Here, we tested the potential chemopreventive and anti-angiogenic activities of an extract from the marine coastal diatom Skeletonema marinoi Sarno and Zingone (Sm) on prostate cancer (PCa) and endothelial cells. We also tested one of the main carotenoids of the diatom, the xanthophyll pigment fucoxanthin (Fuco). Fuco from the literature is a potential candidate compound involved in chemopreventive activities. Sm extract and Fuco were able to inhibit PCa cell growth and hinder vascular network formation of endothelial cells. The reduced number of cells was partially due to growth inhibition and apoptosis. We studied the molecular targets by qPCR and membrane antibody arrays. Angiogenesis and inflammation molecules were modulated. In particular, Fuco downregulated the expression of Angiopoietin 2, CXCL5, TGFβ, IL6, STAT3, MMP1, TIMP1 and TIMP2 in both prostate and endothelial cells. Our study confirmed microalgae-derived drugs as potentially relevant sources of novel nutraceuticals, providing candidates for potential dietary or dietary supplement intervention in cancer prevention approaches.
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Affiliation(s)
- Luana Calabrone
- IRCCS MultiMedica, 20138 Milan, Italy
- Correspondence: (L.C.); (A.A.)
| | | | - Douglas M. Noonan
- Department of Biotechnology and Life Sciences, University of Insubria, 21100 Varese, Italy
| | | | | | | | - Debora Macis
- IRCCS Istituto Europeo di Oncologia IEO, 20141 Milan, Italy
| | - Angelo Fontana
- Institute of Biomolecular Chemistry, Italian National Research Council (CNR), 80078 Pozzuoli, Italy
- Department of Biology, Università di Napoli “Federico II”, 80126 Napoli, Italy
| | - Luigi Pistelli
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy
| | | | | | - Adriana Albini
- IRCCS Istituto Europeo di Oncologia IEO, 20141 Milan, Italy
- Correspondence: (L.C.); (A.A.)
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Yakoviichuk A, Krivova Z, Maltseva S, Kochubey A, Kulikovskiy M, Maltsev Y. Antioxidant Status and Biotechnological Potential of New Vischeria vischeri (Eustigmatophyceae) Soil Strains in Enrichment Cultures. Antioxidants (Basel) 2023; 12:654. [PMID: 36978902 PMCID: PMC10045218 DOI: 10.3390/antiox12030654] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 03/08/2023] Open
Abstract
The functional state of enrichment cultures of the Eustigmatophycean strains Vischeria vischeri MZ-E3 and MZ-E4 after 25-day cultivation in the BBM medium was studied. The concentrations of chlorophyll a, total carotenoids, protein, vitamins A and E, fatty acid peroxidation product content, an antioxidant enzyme, and succinate dehydrogenase activity were measured. MZ-E3 succinate dehydrogenase activity was significantly higher by 2.21 times; the MZ-E4 strain had 2.94 times higher glutathione peroxidase activity. The MZ-E3 antioxidant activity index and the MZ-E3 unsaturation of fatty acids were 1.3 and 1.25 times higher than the MZ-E4. The retinol and α-tocopherol content of the MZ-E3 was 28.6% and 38.76% higher than MZ-E4. The main fatty acid profile differences were the 3.46-fold and 3.92-fold higher stearic and eicosapentaenoic acid content in the MZ-E4 biomass. MZ-E3 had higher antioxidant, energy, and metabolic and photosynthetic status than MZ-E4. The antioxidant status of the studied strains showed the dependence of the adaptive mechanisms of each, associated with differences in the ecological conditions of the biotopes from which they were isolated. These strains are promising for producing α-tocopherol and biomass enriched with omega-3 and omega-6 fatty acids.
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Affiliation(s)
- Aleksandr Yakoviichuk
- Faculty of Natural Sciences, A. Makarenko Melitopol State University, Melitopol 72312, Russia
| | - Zinaida Krivova
- Laboratory of Molecular Systematics of Aquatic Plants, K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, Moscow 127276, Russia
| | - Svetlana Maltseva
- Laboratory of Molecular Systematics of Aquatic Plants, K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, Moscow 127276, Russia
| | - Angelica Kochubey
- Faculty of Natural Sciences, A. Makarenko Melitopol State University, Melitopol 72312, Russia
| | - Maxim Kulikovskiy
- Laboratory of Molecular Systematics of Aquatic Plants, K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, Moscow 127276, Russia
| | - Yevhen Maltsev
- Laboratory of Molecular Systematics of Aquatic Plants, K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, Moscow 127276, Russia
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Pistelli L, Del Mondo A, Smerilli A, Corato F, Sansone C, Brunet C. Biotechnological response curve of the cyanobacterium Spirulina subsalsa to light energy gradient. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:28. [PMID: 36803279 PMCID: PMC9940373 DOI: 10.1186/s13068-023-02277-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/04/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Microalgae represent a suitable and eco-sustainable resource for human needs thanks to their fast growth ability, together with the great diversity in species and intracellular secondary bioactive metabolites. These high-added-value compounds are of great interest for human health or animal feed. The intracellular content of these valuable compound families is tightly associated with the microalgal biological state and responds to environmental cues, e.g., light. Our study develops a Biotechnological response curve strategy exploring the bioactive metabolites synthesis in the marine cyanobacterium Spirulina subsalsa over a light energy gradient. The Relative Light energy index generated in our study integrates the red, green and blue photon flux density with their relative photon energy. The Biotechnological response curve combined biochemical analysis of the macromolecular composition (total protein, lipid, and carbohydrate content), total sterols, polyphenols and flavonoids, carotenoids, phenolic compounds, vitamins (A, B1, B2, B6, B9, B12, C, D2, D3, E, H, and K1), phycobiliproteins, together with the antioxidant activity of the biomass as well as the growth ability and photosynthesis. RESULTS Results demonstrated that light energy significantly modulate the biochemical status of the microalga Spirulina subsalsa revealing the relevance of the light energy index to explain the light-induced biological variability. The sharp decrease of the photosynthetic rate at high light energy was accompanied with an increase of the antioxidant network response, such as carotenoids, total polyphenols, and the antioxidant capacity. Conversely, low light energy favorized the intracellular content of lipids and vitamins (B2, B6, B9, D3, K1, A, C, H, and B12) compared to high light energy. CONCLUSIONS Results of the Biotechnological response curves were discussed in their functional and physiological relevance as well as for the essence of their potential biotechnological applications. This study emphasized the light energy as a relevant tool to explain the biological responses of microalgae towards light climate variability, and, therefore, to design metabolic manipulation of microalgae.
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Affiliation(s)
- Luigi Pistelli
- Stazione zoologica Anton Dohrn, sede Molosiglio Marina Acton, via ammiraglio F. Acton, 55., 80133, Naples, Italy
| | - Angelo Del Mondo
- Stazione zoologica Anton Dohrn, sede Molosiglio Marina Acton, via ammiraglio F. Acton, 55., 80133, Naples, Italy
| | - Arianna Smerilli
- Stazione zoologica Anton Dohrn, sede Molosiglio Marina Acton, via ammiraglio F. Acton, 55., 80133, Naples, Italy
| | - Federico Corato
- Stazione zoologica Anton Dohrn, villa comunale, 80121, Naples, Italy
| | - Clementina Sansone
- Stazione zoologica Anton Dohrn, sede Molosiglio Marina Acton, via ammiraglio F. Acton, 55., 80133, Naples, Italy.
| | - Christophe Brunet
- Stazione zoologica Anton Dohrn, sede Molosiglio Marina Acton, via ammiraglio F. Acton, 55., 80133, Naples, Italy
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Sansone C, Pistelli L, Calabrone L, Del Mondo A, Fontana A, Festa M, Noonan DM, Albini A, Brunet C. The Carotenoid Diatoxanthin Modulates Inflammatory and Angiogenesis Pathways In Vitro in Prostate Cancer Cells. Antioxidants (Basel) 2023; 12:antiox12020359. [PMID: 36829917 PMCID: PMC9952135 DOI: 10.3390/antiox12020359] [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: 12/12/2022] [Revised: 01/23/2023] [Accepted: 01/27/2023] [Indexed: 02/05/2023] Open
Abstract
Xanthophylls, a group of carotenoids, have attracted attention as human health benefit compounds thanks to their functionality and bioavailability. The great antioxidant and anti-inflammatory abilities of diatoxanthin (Dt), a photoprotective xanthophyll synthetized by diatoms, were recently documented. This study investigates the capacity of Dt to intercept prostate cancer progression in vitro on different human cell lines, exploring its role against cancer proliferation and angiogenesis. Our results highlighted the chemopreventive role of Dt already at low concentration (44.1 pM) and suggest that the Dt-induced cancer cell death occurred through oxidative stress mechanisms. This hypothesis was supported by variations on the expression of key genes and proteins. Oxidative stress cell deaths (e.g., ferroptosis) are recently described types of cell death that are closely related to the pathophysiological processes of many diseases, such as tumors. Nonetheless, the interest of Dt was further strengthened by its ability to inhibit angiogenesis. The results are discussed considering the actual progress and requirements in cancer therapy, notably for prostate cancer.
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Affiliation(s)
- Clementina Sansone
- Stazione Zoologica Anton Dohrn, Sede Molosiglio Marina Acton, 80133 Napoli, Italy
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy
- Correspondence: (C.S.); (C.B.)
| | - Luigi Pistelli
- Stazione Zoologica Anton Dohrn, Sede Molosiglio Marina Acton, 80133 Napoli, Italy
| | - Luana Calabrone
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy
| | - Angelo Del Mondo
- Stazione Zoologica Anton Dohrn, Sede Molosiglio Marina Acton, 80133 Napoli, Italy
| | - Angelo Fontana
- Institute of Biomolecular Chemistry, Italian National Research Council (CNR), 80078 Pozzuoli, Italy
| | - Marco Festa
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy
| | - Douglas M. Noonan
- Department of Biotechnology and Life Sciences, University of Insubria, 21100 Varese, Italy
- Unit of Molecular Pathology, Biochemistry and Immunology, IRCCS MultiMedica, 20138 Milan, Italy
| | - Adriana Albini
- IRCSS European Institute of Oncology (IEO), 20141 Milan, Italy
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Sede Molosiglio Marina Acton, 80133 Napoli, Italy
- Correspondence: (C.S.); (C.B.)
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Ciarcia R, Longobardi C, Ferrara G, Montagnaro S, Andretta E, Pagnini F, Florio S, Maruccio L, Lauritano C, Damiano S. The Microalga Skeletonema marinoi Induces Apoptosis and DNA Damage in K562 Cell Line by Modulating NADPH Oxidase. Molecules 2022; 27:8270. [PMID: 36500363 PMCID: PMC9739211 DOI: 10.3390/molecules27238270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
Chronic myeloid leukemia (CML) is a myeloproliferative disease that activates multiple signaling pathways, causing cells to produce higher levels of reactive oxygen species (ROS). Nicotinamide adenine dinucleotide phosphate (NADPH) oxidases (NOXs) are a major generator of ROS in leukemia, and marine natural products have shown promising activities for the treatment of hematopoietic malignancies. In the present study, we investigated the effect of the marine microalga Skeletonema marinoi (S.M.), a ubiquitous diatom that forms massive blooms in the oceans, on the human leukemia cell line K562. The effects of S.M. extract on cell viability, production of ROS, nitric oxide (NO), and apoptosis were examined. In this preliminary work, S.M. was able to decrease cell viability (p < 0.05) and increase apoptosis levels (p < 0.05) in K562 cells after 48 h of treatment. In addition, the levels of NOX, NO, and malondialdehyde (MDA) were reduced in K562-treated cells (p < 0.05), whereas the levels of SOD, CAT, and GPx increased during treatment (p < 0.05). Finally, analyzing Bax and Bcl-2 expression, we found a significant increase in the proapoptotic protein Bax and a sustained decrease in the antiapoptotic protein Bcl-2 (p < 0.05) in the K562-treated cells.
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Affiliation(s)
- Roberto Ciarcia
- Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”, Via Delpino n.1, 80137 Naples, Italy
| | - Consiglia Longobardi
- Department of Mental, Physical Health and Preventive Medicine, University of Campania “Luigi Vanvitelli”, Largo Madonna delle Grazie n.1, 80138 Naples, Italy
| | - Gianmarco Ferrara
- Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”, Via Delpino n.1, 80137 Naples, Italy
| | - Serena Montagnaro
- Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”, Via Delpino n.1, 80137 Naples, Italy
| | - Emanuela Andretta
- Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”, Via Delpino n.1, 80137 Naples, Italy
| | - Francesco Pagnini
- Department of Medicine and Surgery, Unit of Radiology, University of Parma, Via Università n. 12, 43126 Parma, Italy
| | - Salvatore Florio
- Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”, Via Delpino n.1, 80137 Naples, Italy
| | - Lucianna Maruccio
- Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”, Via Delpino n.1, 80137 Naples, Italy
| | - Chiara Lauritano
- Ecosustainable Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, Via Acton n. 55, 80133 Naples, Italy
| | - Sara Damiano
- Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”, Via Delpino n.1, 80137 Naples, Italy
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Maltseva SY, Kulikovskiy MS, Maltsev YI. Functional State of Coelastrella multistriata (Sphaeropleales, Chlorophyta) in an Enrichment Culture. Microbiology (Reading) 2022. [DOI: 10.1134/s0026261722601385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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11
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Jung F, Braune S, Jung CHG, Krüger-Genge A, Waldeck P, Petrick I, Küpper JH. Lipophilic and Hydrophilic Compounds from Arthrospira platensis and Its Effects on Tissue and Blood Cells-An Overview. Life (Basel) 2022; 12:1497. [PMID: 36294932 PMCID: PMC9605678 DOI: 10.3390/life12101497] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 09/14/2024] Open
Abstract
The cyanobacterium Arthrospira platensis (Spirulina platensis) is a natural source of considerable amounts of ingredients that are relevant for nutra- and pharmaceutical uses. Different hydrophilic and hydrophobic substances can be obtained by extraction from the biomass. The respective extraction techniques determine the composition of substances in the extract and thus its biological activity. In this short review, we provide an overview of the hydrophilic compounds (phenols, phycobiliproteins, polysaccharides, and vitamins) and lipophilic ingredients (chlorophylls, vitamins, fatty acids, and glycolipids) of Arthrospira platensis. The principal influences of these substances on blood and tissue cells are briefly summarized.
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Affiliation(s)
- Friedrich Jung
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany
| | - Steffen Braune
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany
- Faculty of Health Sciences Brandenburg, Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany
| | | | - Anne Krüger-Genge
- Department of Healthcare, Biomaterials and Cosmeceuticals, Fraunhofer-Institute for Applied Polymer Research, 14476 Potsdam-Golm, Germany
| | - Peter Waldeck
- Institute of Materials Chemistry, Thermodynamics, Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany
| | - Ingolf Petrick
- Institute of Materials Chemistry, Thermodynamics, Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany
| | - Jan-Heiner Küpper
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany
- Faculty of Health Sciences Brandenburg, Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany
- Carbon Biotech Social Enterprise AG, 01968 Senftenberg, Germany
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12
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Sansone C, Pistelli L, Del Mondo A, Calabrone L, Fontana A, Noonan DM, Albini A, Brunet C. The Microalgal Diatoxanthin Inflects the Cytokine Storm in SARS-CoV-2 Stimulated ACE2 Overexpressing Lung Cells. Antioxidants (Basel) 2022; 11:antiox11081515. [PMID: 36009234 PMCID: PMC9405469 DOI: 10.3390/antiox11081515] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 12/10/2022] Open
Abstract
Contact between SARS-CoV-2 and human lung cells involves the viral spike protein and the human angiotensin-converting enzyme 2 (ACE2) receptor on epithelial cells, the latter being strongly involved in the regulation of inflammation as well as blood pressure homeostasis. SARS-CoV-2 infection is characterized by a strong inflammatory response defined as a “cytokine storm”. Among recent therapeutic approaches against SARS-CoV-2 targeting the dramatic inflammatory reaction, some natural products are promising. Diatoms are microalgae able to produce bioactive secondary metabolites, such as the xanthophyll diatoxanthin (Dt). The aim of this study is to demonstrate the anti-inflammatory effects of Dt on the A549-hACE2 lung cell line, exploring its interaction with the ACE2 receptor, as well as depicting its role in inhibiting a cytokine storm induced by the SARS-CoV-2 spike glycoprotein. Results showed that Dt enhanced the cell metabolism, e.g., the percent of metabolically active cells, as well as the ACE2 enzymatic activity. Moreover, Dt strongly affected the response of the SARS-CoV-2 spike glycoprotein-exposed A549-hACE2 cells in decreasing the interleukin-6 production and increasing the interleukin-10 release. Moreover, Dt upregulated genes encoding for the interferon pathway related to antiviral defense and enhanced proteins belonging to the innate immunity response. The potential interest of Dt as a new therapeutic agent in the treatment and/or prevention of the severe inflammatory syndrome related to SARS-CoV-2 infection is postulated.
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Affiliation(s)
- Clementina Sansone
- Stazione Zoologica Anton Dohrn, sede Molosiglio Marina Acton, Via Ammiraglio F. Acton 55, 80133 Napoli, Italy; (L.P.); (A.D.M.); (L.C.)
- Institute of Biomolecular Chemistry, CNR, Via Campi Flegrei 34, Pozzuoli, 80078 Napoli, Italy;
- Correspondence: (C.S.); (C.B.); Tel.: +39-0815833262 (C.S. & C.B.)
| | - Luigi Pistelli
- Stazione Zoologica Anton Dohrn, sede Molosiglio Marina Acton, Via Ammiraglio F. Acton 55, 80133 Napoli, Italy; (L.P.); (A.D.M.); (L.C.)
| | - Angelo Del Mondo
- Stazione Zoologica Anton Dohrn, sede Molosiglio Marina Acton, Via Ammiraglio F. Acton 55, 80133 Napoli, Italy; (L.P.); (A.D.M.); (L.C.)
| | - Luana Calabrone
- Stazione Zoologica Anton Dohrn, sede Molosiglio Marina Acton, Via Ammiraglio F. Acton 55, 80133 Napoli, Italy; (L.P.); (A.D.M.); (L.C.)
- Unit of Molecular Pathology, Biochemistry and Immunology, IRCCS MultiMedica, 20138 Milan, Italy;
| | - Angelo Fontana
- Institute of Biomolecular Chemistry, CNR, Via Campi Flegrei 34, Pozzuoli, 80078 Napoli, Italy;
- Department of Biology, University of Naples “Federico II”, Via Cupa Nuova Cinthia 21, 80126 Napoli, Italy
| | - Douglas M. Noonan
- Unit of Molecular Pathology, Biochemistry and Immunology, IRCCS MultiMedica, 20138 Milan, Italy;
- Department of Biotechnology and Life Sciences, University of Insubria, 21100 Varese, Italy
| | - Adriana Albini
- IRCCS European Institute of Oncology, IEO, 20141 Milan, Italy;
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, sede Molosiglio Marina Acton, Via Ammiraglio F. Acton 55, 80133 Napoli, Italy; (L.P.); (A.D.M.); (L.C.)
- Correspondence: (C.S.); (C.B.); Tel.: +39-0815833262 (C.S. & C.B.)
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13
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Potential for the Production of Carotenoids of Interest in the Polar Diatom Fragilariopsis cylindrus. Mar Drugs 2022; 20:md20080491. [PMID: 36005496 PMCID: PMC9409807 DOI: 10.3390/md20080491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/15/2022] [Accepted: 07/27/2022] [Indexed: 01/25/2023] Open
Abstract
Carotenoid xanthophyll pigments are receiving growing interest in various industrial fields due to their broad and diverse bioactive and health beneficial properties. Fucoxanthin (Fx) and the inter-convertible couple diadinoxanthin–diatoxanthin (Ddx+Dtx) are acknowledged as some of the most promising xanthophylls; they are mainly synthesized by diatoms (Bacillariophyta). While temperate strains of diatoms have been widely investigated, recent years showed a growing interest in using polar strains, which are better adapted to the natural growth conditions of Nordic countries. The aim of the present study was to explore the potential of the polar diatom Fragilariopsis cylindrus in producing Fx and Ddx+Dtx by means of the manipulation of the growth light climate (daylength, light intensity and spectrum) and temperature. We further compared its best capacity to the strongest xanthophyll production levels reported for temperate counterparts grown under comparable conditions. In our hands, the best growing conditions for F. cylindrus were a semi-continuous growth at 7 °C and under a 12 h light:12 h dark photoperiod of monochromatic blue light (445 nm) at a PUR of 11.7 μmol photons m−2 s−1. This allowed the highest Fx productivity of 43.80 µg L−1 day−1 and the highest Fx yield of 7.53 µg Wh−1, more than two times higher than under ‘white’ light. For Ddx+Dtx, the highest productivity (4.55 µg L−1 day−1) was reached under the same conditions of ‘white light’ and at 0 °C. Our results show that F. cylindrus, and potentially other polar diatom strains, are very well suited for Fx and Ddx+Dtx production under conditions of low temperature and light intensity, reaching similar productivity levels as model temperate counterparts such as Phaeodactylum tricornutum. The present work supports the possibility of using polar diatoms as an efficient cold and low light-adapted bioresource for xanthophyll pigments, especially usable in Nordic countries.
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14
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Total Phenolic Content, Biomass Composition, and Antioxidant Activity of Selected Marine Microalgal Species with Potential as Aquaculture Feed. Antioxidants (Basel) 2022; 11:antiox11071320. [PMID: 35883811 PMCID: PMC9311600 DOI: 10.3390/antiox11071320] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 12/25/2022] Open
Abstract
There has been growing interest in microalgal biomolecules for health and cosmetics, as well as in the use of microalgae as aquaculture feed due to the need to replace fishmeal and fish oil with sustainable yet equally nutritious alternatives. Aim of this study is to evaluate the potential of five marine microalgal species, namely Chlorella minutissima, Dunaliella salina, Isochrysis galbana, Nannochloropsis oculata and Tisochrysis lutea, for the co-production of antioxidants and aquaculture feed. Batch cultivation was performed under saturating light intensity and continuous aeration. Freeze-dried biomass was extracted sequentially with water and methanol and evaluated for phenolic content and antioxidant activity, as well as proximate composition and fatty acid profile. Methanolic extracts of C. minutissima presented the highest phenolic content, measured with the Folin–Ciocalteu assay, and antioxidant activity. However, HPLC and LC-MS showed the presence of non-pigment compounds only in T. lutea. Total phenolic content and antioxidant activity were correlated to chlorophyll content. N. oculata and T. lutea were rich in eicosapentaenoic acid and docosahexaenoic acid, respectively, as well as in protein. In conclusion, N. oculata and T. lutea are suitable candidates for further optimization, while the data presented suggest that pigment effects on the Folin–Ciocalteu method require reconsideration.
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15
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Uma VS, Usmani Z, Sharma M, Diwan D, Sharma M, Guo M, Tuohy MG, Makatsoris C, Zhao X, Thakur VK, Gupta VK. Valorisation of algal biomass to value-added metabolites: emerging trends and opportunities. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2022; 22:1-26. [PMID: 35250414 PMCID: PMC8889523 DOI: 10.1007/s11101-022-09805-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
Algal biomass is a promising feedstock for sustainable production of a range of value-added compounds and products including food, feed, fuel. To further augment the commercial value of algal metabolites, efficient valorization methods and biorefining channels are essential. Algal extracts are ideal sources of biotechnologically viable compounds loaded with anti-microbial, anti-oxidative, anti-inflammatory, anti-cancerous and several therapeutic and restorative properties. Emerging technologies in biomass valorisation tend to reduce the significant cost burden in large scale operations precisely associated with the pre-treatment, downstream processing and waste management processes. In order to enhance the economic feasibility of algal products in the global market, comprehensive extraction of multi-algal product biorefinery is envisaged as an assuring strategy. Algal biorefinery has inspired the technologists with novel prospectives especially in waste recovery, carbon concentration/sequestration and complete utilisation of the value-added products in a sustainable closed-loop methodology. This review critically examines the latest trends in the algal biomass valorisation and the expansive feedstock potentials in a biorefinery perspective. The recent scope dynamics of algal biomass utilisation such as bio-surfactants, oleochemicals, bio-stimulants and carbon mitigation have also been discussed. The existing challenges in algal biomass valorisation, current knowledge gaps and bottlenecks towards commercialisation of algal technologies are discussed. This review is a comprehensive presentation of the road map of algal biomass valorisation techniques towards biorefinery technology. The global market view of the algal products, future research directions and emerging opportunities are reviewed.
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Affiliation(s)
- V. S. Uma
- Radiological and Environmental Safety Group, Department of Atomic Energy, Indira Gandhi Centre for Atomic Research (IGCAR), Govt of India, Kalpakkam, Tamil Nadu India
| | - Zeba Usmani
- Department of Applied Biology, University of Science and Technology, Meghalaya, 793101 India
| | - Minaxi Sharma
- Department of Applied Biology, University of Science and Technology, Meghalaya, 793101 India
| | - Deepti Diwan
- School of Medicine, Washington University, Saint Louis, MO USA
| | - Monika Sharma
- Department of Botany, Sri Avadh Raj Singh Smarak Degree College, Gonda, UP India
| | - Miao Guo
- Department of Engineering, Faculty of Natural and Mathematical Sciences, King’s College, Strand Campus, The Strand London, London, WC2R 2LS UK
| | - Maria G. Tuohy
- Molecular Glycobiotechnology Group, Biochemistry, School of Natural Sciences, Ryan Institute and MaREI, National University of Ireland, H91 TK33 Galway, Ireland
| | - Charalampos Makatsoris
- Department of Engineering, Faculty of Natural and Mathematical Sciences, King’s College, Strand Campus, The Strand London, London, WC2R 2LS UK
| | - Xiaobin Zhao
- Future Business Cambridge, Cambond Limited, Centre Kings Hedges Road, Cambridge, CB4 2HY UK
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, Scotland’s Rural College (SRUC), Kings Buildings, West Mains Road, EH9 3JG Edinburgh, UK
- School of Engineering, University of Petroleum & Energy Studies (UPES), 248007 Dehradun, India
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, Scotland’s Rural College (SRUC), Kings Buildings, West Mains Road, EH9 3JG Edinburgh, UK
- Center for Safe and Improved Food, Scotland’s Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh, EH9 3JG UK
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16
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Reza AHMM, Zhu X, Qin J, Tang Y. Microalgae-Derived Health Supplements to Therapeutic Shifts: Redox-Based Study Opportunities with AIE-Based Technologies. Adv Healthc Mater 2021; 10:e2101223. [PMID: 34468087 DOI: 10.1002/adhm.202101223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/16/2021] [Indexed: 12/14/2022]
Abstract
Reactive oxygen species (ROS) are highly reactive molecules, serve the normal signaling in different cell types. Targeting ROS as the chemical signals, different stress based strategies have been developed to synthesis different anti-inflammatory molecules in microalgae. These molecules could be utilized as health supplements in human. To provoke the ROS-mediated defence systems, their connotation with the associated conditions must be well understood, therefore, proper tools for studying ROS in natural state are essential. The in vivo detection of ROS with phosphorescent probes offers promising opportunities to study these molecules in a non-invasive manner. Most of the common problems in the traditional fluorescent probes are lower photostability, excitation intensity, slow responsiveness, and the microenvironment that challenge their performance. Some ROS-specific aggregationinduced emission luminogens (AIEgens) with pronounced spatial and temporal resolution have recently demonstrated high selectivity, rapid responsiveness, and efficacies to resolve the aggregation-caused quenching issues. The nanocomposites of some AIE-photosensitizers can also improve the ROS-mediated photodynamic therapy. These AIEgens could be used to induce bioactive components in microalgae through altering the ROS signaling, therefore are more auspicious for biomedical research. This study reviews the prospects of AIEgen-based technologies to understand the ROS mediated bio-physiological processes in microalgae for better healthcare benefits.
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Affiliation(s)
- A. H. M. Mohsinul Reza
- College of Science and Engineering Flinders University South Australia 5042 Australia
- Institute for NanoScale Science and Technology Medical Device Research Institute College of Science and Engineering Flinders University South Australia 5042 Australia
| | - Xiaochen Zhu
- College of Science and Engineering Flinders University South Australia 5042 Australia
- Institute for NanoScale Science and Technology Medical Device Research Institute College of Science and Engineering Flinders University South Australia 5042 Australia
| | - Jianguang Qin
- College of Science and Engineering Flinders University South Australia 5042 Australia
| | - Youhong Tang
- College of Science and Engineering Flinders University South Australia 5042 Australia
- Institute for NanoScale Science and Technology Medical Device Research Institute College of Science and Engineering Flinders University South Australia 5042 Australia
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17
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Kapoor S, Singh M, Srivastava A, Chavali M, Chandrasekhar K, Verma P. Extraction and characterization of microalgae-derived phenolics for pharmaceutical applications: A systematic review. J Basic Microbiol 2021; 62:1044-1063. [PMID: 34766645 DOI: 10.1002/jobm.202100458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/18/2021] [Accepted: 10/31/2021] [Indexed: 12/11/2022]
Abstract
Microalgae are regarded as a rich trove of diverse secondary metabolites that exert remarkable biological activities. In particular, microalgae-derived bioactive phenolic compounds (MBPCs) are a boon to biopharmaceutical and nutraceutical industries due to their diverse bioactivities, including antimicrobial, anticancer, antiviral, and immunomodulatory activities. The state-of-the-art green technologies for extraction and purification of MBPCs, along with the modern progress in the identification and characterization of MBPCs, have accelerated the discovery of novel active pharmaceutical compounds. However, several factors regulate the production of these bioactive phenolic compounds in microalgae. Furthermore, some microalgae species produce toxic phenolic compounds that negatively impact the aquatic ecosystem, animal, and human life. Therefore, the focus of this review paper is to bring into light the current innovations in bioprospection, extraction, purification, and characterization of MBPCs. This review is also aimed at a better understanding of the physicochemical factors regulating the production of MBPCs at an industrial scale. Finally, the present review covers the recent advances in toxicological evaluation, diverse applications, and future prospects of MBPCs in biopharmaceutical industries.
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Affiliation(s)
- Sahil Kapoor
- Department of Botany, MS University of Baroda, Vadodara, Gujarat, India.,Department of Botany, Goswami Ganesh Dutta S.D. College, Chandigarh, India
| | - Meenakshi Singh
- Department of Botany, MS University of Baroda, Vadodara, Gujarat, India.,Department of Ecology & Biodiversity, Terracon Ecotech Pvt. Ltd., Mumbai, Maharashtra, India
| | - Atul Srivastava
- Department of Botany, MS University of Baroda, Vadodara, Gujarat, India
| | - Murthy Chavali
- Office of the Dean (Research) & Department of Chemistry, Faculty of Science & Technology, Alliance University (Central Campus), Bengaluru, Karnataka, India.,NTRC-MCETRC and Aarshanano Composite Technologies Pvt. Ltd., Guntur, Andhra Pradesh, India
| | - K Chandrasekhar
- School of Civil and Environmental Engineering, Yonsei University, Seoul, Republic of Korea
| | - Pradeep Verma
- Bioprocess and Bioenergy Laboratory, Department of Microbiology, Central University of Rajasthan, Ajmer, Rajasthan, India
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18
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Microalgal Co-Cultivation Prospecting to Modulate Vitamin and Bioactive Compounds Production. Antioxidants (Basel) 2021; 10:antiox10091360. [PMID: 34572991 PMCID: PMC8468856 DOI: 10.3390/antiox10091360] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 08/16/2021] [Accepted: 08/23/2021] [Indexed: 12/15/2022] Open
Abstract
Microalgal biotechnology is gaining importance. However, key issues in the pipeline from species selection towards large biomass production still require improvements to maximize the yield and lower the microalgal production costs. This study explores a co-cultivation strategy to improve the bioactive compounds richness of the harvested microalgal biomass. Based on their biotechnological potential, two diatoms (Skeletonema marinoi, Cyclotella cryptica) and one eustigmatophyte (Nannochloropsis oceanica) were grown alone or in combination. Concentrations of ten vitamins (A, B1, B2, B6, B12, C, D2, D3, E and H), carotenoids and polyphenols, together with total flavonoids, sterols, lipids, proteins and carbohydrates, were compared. Moreover, antioxidant capacity and chemopreventive potential in terms inhibiting four human tumor-derived and normal cell lines proliferation were evaluated. Co-cultivation can engender biomass with emergent properties regarding bioactivity or bioactive chemical profile, depending on the combined species. The high vitamin content of C. cryptica or N. oceanica further enhanced (until 10% more) when co-cultivated, explaining the two-fold increase of the antioxidant capacity of the combined C. cryptica and N. oceanica biomass. Differently, the chemopreventive activity was valuably enhanced when coupling the two diatoms C. cryptica and S. marinoi. The results obtained in this pilot study promote microalgal co-cultivation as a valuable strategy aiming to boost their application in eco-sustainable biotechnology.
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19
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Pistelli L, Sansone C, Smerilli A, Festa M, Noonan DM, Albini A, Brunet C. MMP-9 and IL-1β as Targets for Diatoxanthin and Related Microalgal Pigments: Potential Chemopreventive and Photoprotective Agents. Mar Drugs 2021; 19:354. [PMID: 34206447 PMCID: PMC8303339 DOI: 10.3390/md19070354] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 06/15/2021] [Accepted: 06/20/2021] [Indexed: 12/13/2022] Open
Abstract
Photochemoprevention can be a valuable approach to counteract the damaging effects of environmental stressors (e.g., UV radiations) on the skin. Pigments are bioactive molecules, greatly attractive for biotechnological purposes, and with promising applications for human health. In this context, marine microalgae are a valuable alternative and eco-sustainable source of pigments that still need to be taken advantage of. In this study, a comparative in vitro photochemopreventive effects of twenty marine pigments on carcinogenic melanoma model cell B16F0 from UV-induced injury was setup. Pigment modulation of the intracellular reactive oxygen species (ROS) concentration and extracellular release of nitric oxide (NO) was investigated. At the cell signaling level, interleukin 1-β (IL-1β) and matrix metallopeptidase 9 protein (MMP-9) protein expression was examined. These processes are known to be involved in the signaling pathway, from UV stress to cancer induction. Diatoxanthin resulted the best performing pigment in lowering MMP-9 levels and was able to strongly lower IL-1β. This study highlights the pronounced bioactivity of the exclusively aquatic carotenoid diatoxanthin, among the others. It is suggested increasing research efforts on this molecule, emphasizing that a deeper integration of plant ecophysiological studies into a biotechnological context could improve the exploration and exploitation of bioactive natural products.
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Affiliation(s)
- Luigi Pistelli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa Comunale, 80121 Napoli, Italy; (L.P.); (A.S.); (C.B.)
| | - Clementina Sansone
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa Comunale, 80121 Napoli, Italy; (L.P.); (A.S.); (C.B.)
| | - Arianna Smerilli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa Comunale, 80121 Napoli, Italy; (L.P.); (A.S.); (C.B.)
| | - Marco Festa
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy; (M.F.); (A.A.)
| | - Douglas M. Noonan
- Department of Biotechnology and Life Sciences, University of Insubria, 21100 Varese, Italy;
- Unit of Molecular Pathology, Biochemistry and Immunology, IRCCS MultiMedica, 20138 Milan, Italy
| | - Adriana Albini
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy; (M.F.); (A.A.)
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa Comunale, 80121 Napoli, Italy; (L.P.); (A.S.); (C.B.)
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20
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Tamaki S, Mochida K, Suzuki K. Diverse Biosynthetic Pathways and Protective Functions against Environmental Stress of Antioxidants in Microalgae. PLANTS (BASEL, SWITZERLAND) 2021; 10:1250. [PMID: 34205386 PMCID: PMC8234872 DOI: 10.3390/plants10061250] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 01/08/2023]
Abstract
Eukaryotic microalgae have been classified into several biological divisions and have evolutionarily acquired diverse morphologies, metabolisms, and life cycles. They are naturally exposed to environmental stresses that cause oxidative damage due to reactive oxygen species accumulation. To cope with environmental stresses, microalgae contain various antioxidants, including carotenoids, ascorbate (AsA), and glutathione (GSH). Carotenoids are hydrophobic pigments required for light harvesting, photoprotection, and phototaxis. AsA constitutes the AsA-GSH cycle together with GSH and is responsible for photooxidative stress defense. GSH contributes not only to ROS scavenging, but also to heavy metal detoxification and thiol-based redox regulation. The evolutionary diversity of microalgae influences the composition and biosynthetic pathways of these antioxidants. For example, α-carotene and its derivatives are specific to Chlorophyta, whereas diadinoxanthin and fucoxanthin are found in Heterokontophyta, Haptophyta, and Dinophyta. It has been suggested that AsA is biosynthesized via the plant pathway in Chlorophyta and Rhodophyta and via the Euglena pathway in Euglenophyta, Heterokontophyta, and Haptophyta. The GSH biosynthetic pathway is conserved in all biological kingdoms; however, Euglenophyta are able to synthesize an additional thiol antioxidant, trypanothione, using GSH as the substrate. In the present study, we reviewed and discussed the diversity of microalgal antioxidants, including recent findings.
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Affiliation(s)
- Shun Tamaki
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, Yokohama 230-0045, Japan; (K.M.); (K.S.)
| | - Keiichi Mochida
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, Yokohama 230-0045, Japan; (K.M.); (K.S.)
- RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan
- Kihara Institute for Biological Research, Yokohama City University, Yokohama 230-0045, Japan
- School of Information and Data Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Kengo Suzuki
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, Yokohama 230-0045, Japan; (K.M.); (K.S.)
- euglena Co., Ltd., Tokyo 108-0014, Japan
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21
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Sañé E, Del Mondo A, Ambrosino L, Smerilli A, Sansone C, Brunet C. The Recent Advanced in Microalgal Phytosterols: Bioactive Ingredients Along With Human-Health Driven Potential Applications. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.1938115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Elisabet Sañé
- Stazione Zoologica Anton Dohrn, Istituto Nazionale Di Biologia, Ecologia E Biotecnologie Marine, Napoli, Italy
| | - Angelo Del Mondo
- Stazione Zoologica Anton Dohrn, Istituto Nazionale Di Biologia, Ecologia E Biotecnologie Marine, Napoli, Italy
| | - Luca Ambrosino
- Stazione Zoologica Anton Dohrn, Istituto Nazionale Di Biologia, Ecologia E Biotecnologie Marine, Napoli, Italy
| | - Arianna Smerilli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale Di Biologia, Ecologia E Biotecnologie Marine, Napoli, Italy
| | - Clementina Sansone
- Stazione Zoologica Anton Dohrn, Istituto Nazionale Di Biologia, Ecologia E Biotecnologie Marine, Napoli, Italy
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Istituto Nazionale Di Biologia, Ecologia E Biotecnologie Marine, Napoli, Italy
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22
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Gao G, Zhao X, Jin P, Gao K, Beardall J. Current understanding and challenges for aquatic primary producers in a world with rising micro- and nano-plastic levels. JOURNAL OF HAZARDOUS MATERIALS 2021; 406:124685. [PMID: 33321322 DOI: 10.1016/j.jhazmat.2020.124685] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/22/2020] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
The impacts of micro- and nanoplastics (MNPs) on aquatic animals have been intensively studied; however, the extent and magnitude of potential effects of MNPs on aquatic primary producers are poorly understood. In this study, we quantitatively analyzed the published literature to examine the impacts of MNPs on growth, photosynthesis, pigments, and metabolism of aquatic microalgae. MNPs negatively affected growth of microalgae but usually had a high EC50 (>25 mg/L). However, positively charged MNPs had a much lower EC50 (<1 mg/L). MNPs lowered maximum photochemical efficiency of photosystem II (Fv/Fm) with the effect increasing with concentration of MNPs but diminishing with exposure time, and also reduced chlorophyll a content to enhanced extent with increased MNPs concentration. MNPs induced relatively higher changes in superoxide dismutase (SOD) and malondialdehyde (MDA) levels in marine algae than in freshwater algae. Reactive oxygen species (ROS) levels increased with MNPs concentration and exposure time while SOD levels first increased and then decreased with increasing MNPs concentration. Macrophytes were found to be able to trap MNPs via multiple mechanisms. Future work should focus on the mechanisms behind MNPs impacts on primary productivity and global carbon cycle, and the combined effects of MNPs with other environmental factors.
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Affiliation(s)
- Guang Gao
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China.
| | - Xin Zhao
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China
| | - Peng Jin
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Kunshan Gao
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China
| | - John Beardall
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China; School of Biological Sciences, Monash University, Clayton, VI 3800, Australia
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Del Mondo A, Smerilli A, Ambrosino L, Albini A, Noonan DM, Sansone C, Brunet C. Insights into phenolic compounds from microalgae: structural variety and complex beneficial activities from health to nutraceutics. Crit Rev Biotechnol 2021; 41:155-171. [PMID: 33530761 DOI: 10.1080/07388551.2021.1874284] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Phenolic compounds (PCs) are a family of secondary metabolites with recognized biological activities making them attractive for the biomedical "red" biotechnology. The development of the eco-sustainable production of natural bioactive metabolites requires using easy cultivable organisms, such as microalgae, which represents one of the most promising sources for biotechnological applications. Microalgae are photosynthetic organisms inhabiting aquatic systems, displaying high levels of biological and functional diversities, and are well-known producers of fatty acids and carotenoids. They are also rich in other families of bioactive molecules e.g. phenolic compounds. Microalgal PCs however are less investigated than other molecular components. This study aims to provide a state-of-art picture of the actual knowledge on microalgal phenolic compounds, reviewing information on the PC content variety and chemodiversity in microalgae, their environmental modulation, and we aim to report discuss data on PC biosynthetic pathways. We report the challenges of promoting microalgae as a relevant source of natural PCs, further enhancing the interests of microalgal "biofactories" for biotechnological applications (i.e. nutraceutical, pharmacological, or cosmeceutical products).
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Affiliation(s)
- Angelo Del Mondo
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Napoli, Italy
| | - Arianna Smerilli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Napoli, Italy
| | - Luca Ambrosino
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Napoli, Italy
| | - Adriana Albini
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, Milan, Italy
| | - Douglas M Noonan
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, Milan, Italy.,Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Clementina Sansone
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Napoli, Italy
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Napoli, Italy
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Del Mondo A, Smerilli A, Sané E, Sansone C, Brunet C. Challenging microalgal vitamins for human health. Microb Cell Fact 2020; 19:201. [PMID: 33138823 PMCID: PMC7607653 DOI: 10.1186/s12934-020-01459-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 10/17/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Vitamins' deficiency in humans is an important threat worldwide and requires solutions. In the concept of natural biofactory for bioactive compounds production, microalgae represent one of the most promising targets filling many biotechnological applications, and allowing the development of an eco-sustainable production of natural bioactive metabolites. Vitamins are probably one of the cutting edges of microalgal diversity compounds. MAIN TEXT Microalgae can usefully provide many of the required vitamins in humans, more than terrestrial plants, for instance. Indeed, vitamins D and K, little present in many plants or fruits, are instead available from microalgae. The same occurs for some vitamins B (B12, B9, B6), while the other vitamins (A, C, D, E) are also provided by microalgae. This large panel of vitamins diversity in microalgal cells represents an exploitable platform in order to use them as natural vitamins' producers for human consumption. This study aims to provide an integrative overview on vitamins content in the microalgal realm, and discuss on the great potential of microalgae as sources of different forms of vitamins to be included as functional ingredients in food or nutraceuticals for the human health. We report on the biological roles of vitamins in microalgae, the current knowledge on their modulation by environmental or biological forcing and on the biological activity of the different vitamins in human metabolism and health protection. CONCLUSION Finally, we critically discuss the challenges for promoting microalgae as a relevant source of vitamins, further enhancing the interests of microalgal "biofactory" for biotechnological applications, such as in nutraceuticals or cosmeceuticals.
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Affiliation(s)
- Angelo Del Mondo
- Stazione Zoologica Anton Dohrn, Istituto Nazionale Di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121, Napoli, Italy
| | - Arianna Smerilli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale Di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121, Napoli, Italy
| | - Elisabet Sané
- Stazione Zoologica Anton Dohrn, Istituto Nazionale Di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121, Napoli, Italy
| | - Clementina Sansone
- Stazione Zoologica Anton Dohrn, Istituto Nazionale Di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121, Napoli, Italy.
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Istituto Nazionale Di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121, Napoli, Italy
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25
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Milito A, Orefice I, Smerilli A, Castellano I, Napolitano A, Brunet C, Palumbo A. Insights into the Light Response of Skeletonema marinoi: Involvement of Ovothiol. Mar Drugs 2020; 18:md18090477. [PMID: 32962291 PMCID: PMC7551349 DOI: 10.3390/md18090477] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/14/2020] [Accepted: 09/17/2020] [Indexed: 12/19/2022] Open
Abstract
Diatoms are one of the most widespread groups of microalgae on Earth. They possess extraordinary metabolic capabilities, including a great ability to adapt to different light conditions. Recently, we have discovered that the diatom Skeletonema marinoi produces the natural antioxidant ovothiol B, until then identified only in clams. In this study, we investigated the light-dependent modulation of ovothiol biosynthesis in S. marinoi. Diatoms were exposed to different light conditions, ranging from prolonged darkness to low or high light, also differing in the velocity of intensity increase (sinusoidal versus square-wave distribution). The expression of the gene encoding the key ovothiol biosynthetic enzyme, ovoA, was upregulated by high sinusoidal light mimicking natural conditions. Under this situation higher levels of reactive oxygen species and nitric oxide as well as ovothiol and glutathione increase were detected. No ovoA modulation was observed under prolonged darkness nor low sinusoidal light. Unnatural conditions such as continuous square-wave light induced a very high oxidative stress leading to a drop in cell growth, without enhancing ovoA gene expression. Only one of the inducible forms of nitric oxide synthase, nos2, was upregulated by light with consequent production of NO under sinusoidal light and darkness conditions. Our data suggest that ovothiol biosynthesis is triggered by a combined light stress caused by natural distribution and increased photon flux density, with no influence from the daily light dose. These results open new perspectives for the biotechnological production of ovothiols, which are receiving a great interest for their biological activities in human model systems.
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Affiliation(s)
- Alfonsina Milito
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy;
- Department of Molecular Genetics, Centre for Research in Agricultural Genomics, Cerdanyola, 08193 Barcelona, Spain
- Correspondence: or (A.M.); (A.P.); Tel.: +39-081-5833 (ext. 293/276) (A.M.)
| | - Ida Orefice
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (I.O.); (A.S.); (C.B.)
| | - Arianna Smerilli
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (I.O.); (A.S.); (C.B.)
| | - Immacolata Castellano
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy;
| | - Alessandra Napolitano
- Department of Chemical Sciences, University of Naples “Federico II”, 80126 Naples, Italy;
| | - Christophe Brunet
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (I.O.); (A.S.); (C.B.)
| | - Anna Palumbo
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy;
- Correspondence: or (A.M.); (A.P.); Tel.: +39-081-5833 (ext. 293/276) (A.M.)
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26
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Dolganyuk V, Belova D, Babich O, Prosekov A, Ivanova S, Katserov D, Patyukov N, Sukhikh S. Microalgae: A Promising Source of Valuable Bioproducts. Biomolecules 2020; 10:E1153. [PMID: 32781745 PMCID: PMC7465300 DOI: 10.3390/biom10081153] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 12/20/2022] Open
Abstract
Microalgae are a group of autotrophic microorganisms that live in marine, freshwater and soil ecosystems and produce organic substances in the process of photosynthesis. Due to their high metabolic flexibility, adaptation to various cultivation conditions as well as the possibility of rapid growth, the number of studies on their use as a source of biologically valuable products is growing rapidly. Currently, integrated technologies for the cultivation of microalgae aiming to isolate various biologically active substances from biomass to increase the profitability of algae production are being sought. To implement this kind of development, the high productivity of industrial cultivation systems must be accompanied by the ability to control the biosynthesis of biologically valuable compounds in conditions of intensive culture growth. The review considers the main factors (temperature, pH, component composition, etc.) that affect the biomass growth process and the biologically active substance synthesis in microalgae. The advantages and disadvantages of existing cultivation methods are outlined. An analysis of various methods for the isolation and overproduction of the main biologically active substances of microalgae (proteins, lipids, polysaccharides, pigments and vitamins) is presented and new technologies and approaches aimed at using microalgae as promising ingredients in value-added products are considered.
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Affiliation(s)
- Vyacheslav Dolganyuk
- Institute of Living Systems, Immanuel Kant Baltic Federal University, A. Nevskogo Street 14, 236016 Kaliningrad, Russia; (V.D.); (D.B.); (O.B.); (D.K.); (N.P.); (S.S.)
| | - Daria Belova
- Institute of Living Systems, Immanuel Kant Baltic Federal University, A. Nevskogo Street 14, 236016 Kaliningrad, Russia; (V.D.); (D.B.); (O.B.); (D.K.); (N.P.); (S.S.)
| | - Olga Babich
- Institute of Living Systems, Immanuel Kant Baltic Federal University, A. Nevskogo Street 14, 236016 Kaliningrad, Russia; (V.D.); (D.B.); (O.B.); (D.K.); (N.P.); (S.S.)
- Laboratory of Biocatalysis, Kemerovo State University, Krasnaya Street 6, 650043 Kemerovo, Russia;
| | - Alexander Prosekov
- Laboratory of Biocatalysis, Kemerovo State University, Krasnaya Street 6, 650043 Kemerovo, Russia;
| | - Svetlana Ivanova
- Natural Nutraceutical Biotesting Laboratory, Kemerovo State University, Krasnaya Street 6, 650043 Kemerovo, Russia
- Department of General Mathematics and Informatics, Kemerovo State University, Krasnaya Street 6, 650043 Kemerovo, Russia
| | - Dmitry Katserov
- Institute of Living Systems, Immanuel Kant Baltic Federal University, A. Nevskogo Street 14, 236016 Kaliningrad, Russia; (V.D.); (D.B.); (O.B.); (D.K.); (N.P.); (S.S.)
| | - Nikolai Patyukov
- Institute of Living Systems, Immanuel Kant Baltic Federal University, A. Nevskogo Street 14, 236016 Kaliningrad, Russia; (V.D.); (D.B.); (O.B.); (D.K.); (N.P.); (S.S.)
| | - Stanislav Sukhikh
- Institute of Living Systems, Immanuel Kant Baltic Federal University, A. Nevskogo Street 14, 236016 Kaliningrad, Russia; (V.D.); (D.B.); (O.B.); (D.K.); (N.P.); (S.S.)
- Laboratory of Biocatalysis, Kemerovo State University, Krasnaya Street 6, 650043 Kemerovo, Russia;
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27
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Wei L, You W, Gong Y, El Hajjami M, Liang W, Xu J, Poetsch A. Transcriptomic and proteomic choreography in response to light quality variation reveals key adaption mechanisms in marine Nannochloropsis oceanica. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 720:137667. [PMID: 32325597 DOI: 10.1016/j.scitotenv.2020.137667] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/04/2020] [Accepted: 02/29/2020] [Indexed: 06/11/2023]
Abstract
Photosynthetic organisms need to respond frequently to the fluctuation of light quality and light quantity in their habitat. In response to the fluctuation of different single wavelength lights, these organisms have to adjust and optimize the employment of light energy by redistributing excitation energy and remodeling photosystem stoichiometry or light complex structure. However, the response of whole cellular processes to fluctuations in single wavelength light is mostly unknown. Here, we report the transcriptomic and proteomic dynamics and metabolic adaptation mechanisms of Nannochloropsis oceanica to blue and red light. Preferential exposure to different light spectra induces massive reprogramming of the Nannochloropsis transcriptome and proteome. Combined with physiological and biochemical investigation, the rewiring of many cellular processes was observed, including carbon/nitrogen assimilation, photosynthesis, chlorophyll and cartenoid biosynthesis, reactive oxygen species (ROS) scavenging systems, and chromatin state regulation. A strong and rapid regulation of genes or proteins related to nitrogen metabolism, photosynthesis, chlorophyll synthesis, ROS scavenging system, and carotenoid metabolism were observed during 12 h and 24 h of exposure under red light. Additionally, two light harvesting complex proteins induced by blue light and one by red light were observed. The differential responses of N. oceanica to red and blue irradiation reveal how marine microalgae adapt to change in light quality and can be exploited for biofuel feedstock development.
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Affiliation(s)
- Li Wei
- Single-Cell Center, CAS Key Laboratory of Biofuels and Shandong Key Laboratory of Energy Genetics, Qingdao Institute of BioEnergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Wuxin You
- Single-Cell Center, CAS Key Laboratory of Biofuels and Shandong Key Laboratory of Energy Genetics, Qingdao Institute of BioEnergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China; Department of Plant Biochemistry, Ruhr University Bochum, Bochum, Germany
| | - Yanhai Gong
- Single-Cell Center, CAS Key Laboratory of Biofuels and Shandong Key Laboratory of Energy Genetics, Qingdao Institute of BioEnergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China
| | - Mohamed El Hajjami
- Department of Plant Biochemistry, Ruhr University Bochum, Bochum, Germany
| | - Wensi Liang
- Single-Cell Center, CAS Key Laboratory of Biofuels and Shandong Key Laboratory of Energy Genetics, Qingdao Institute of BioEnergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Xu
- Single-Cell Center, CAS Key Laboratory of Biofuels and Shandong Key Laboratory of Energy Genetics, Qingdao Institute of BioEnergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Ansgar Poetsch
- Department of Plant Biochemistry, Ruhr University Bochum, Bochum, Germany; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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28
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Milito A, Castellano I, Burn R, Seebeck FP, Brunet C, Palumbo A. First evidence of ovothiol biosynthesis in marine diatoms. Free Radic Biol Med 2020; 152:680-688. [PMID: 31935446 DOI: 10.1016/j.freeradbiomed.2020.01.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/10/2020] [Accepted: 01/10/2020] [Indexed: 12/26/2022]
Abstract
Ovothiols are histidine-derived thiols that are receiving a great interest for their biological activities in human model systems. Thanks to the position of the thiol group on the imidazole ring of histidine, these compounds exhibit unusual antioxidant properties. They have been revealing a very promising pharmacological potential due to their anti-proliferative and anti-inflammatory properties, as well as anti-fibrotic activities not always related to their antioxidant power. Ovothiols occur in three differentially methylated forms (A, B and C), isolated from ovary, eggs and biological fluids of many marine invertebrates, mollusks, microalgae, and pathogenic protozoa. These molecules are synthesized by two enzymes: the sulfoxide synthase OvoA and the sulfoxide lyase OvoB. OvoA catalyzes the insertion of the sulfur atom of cysteine on the imidazole ring of histidine, leading to the formation of a sulfoxide intermediate. This is then cleaved by OvoB, giving 5-thiohistidine, finally methylated on the imidazole ring thanks to the methyltransferase domain of OvoA. Recent studies have shown that OvoA homologs are encoded in a wide variety of genomes suggesting that ovothiol biosynthesis is much more widespread in nature than initially thought. Here we have investigated the OvoA occurrence in diatoms, one of the most abundant group of microalgae, dominating marine and freshwater environments. They are considered a very good model system for both biology/photophysiology studies and for biotechnological applications. We have performed comparative sequence and phylogenetic analyses of OvoA from diatoms, highlighting a high degree of conservation of the canonical domain architecture in the analyzed species, as well as a clear clustering of OvoA in the two different morphological groups, i.e. centric and pennate diatoms. The in silico analyses have also revealed that OvoA gene expression is modulated by growth conditions. More importantly, we have characterized the thiol fraction from cultures of the coastal centric diatom Skeletonema marinoi, providing the first evidence of ovothiol B biosynthesis in diatoms.
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Affiliation(s)
- Alfonsina Milito
- Dept. of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, 80121, Naples, Italy
| | - Immacolata Castellano
- Dept. of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, 80121, Naples, Italy
| | - Reto Burn
- Dept. of Chemistry, University of Basel, 4058, Basel, Switzerland
| | | | - Christophe Brunet
- Dept. of Marine Biotechnology, Stazione Zoologica Anton Dohrn, 80121, Naples, Italy
| | - Anna Palumbo
- Dept. of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, 80121, Naples, Italy.
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29
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Mc Gee D, Archer L, Smyth TJ, Fleming GT, Touzet N. Bioprospecting and LED-based spectral enhancement of antimicrobial activity of microalgae isolated from the west of Ireland. ALGAL RES 2020. [DOI: 10.1016/j.algal.2019.101704] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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30
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Mishra A, Medhi K, Malaviya P, Thakur IS. Omics approaches for microalgal applications: Prospects and challenges. BIORESOURCE TECHNOLOGY 2019; 291:121890. [PMID: 31378447 DOI: 10.1016/j.biortech.2019.121890] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/23/2019] [Accepted: 07/24/2019] [Indexed: 06/10/2023]
Abstract
In recent impetus of phycological research, microalgae have emerged as a potential candidate for various arena of application-driven research. Omics-based tactics are used for disentangling the regulation and network integration for biosynthesis/degradation of metabolic precursors, intermediates, end products, and identifying the networks that regulate the metabolic flux. Multi-omics coupled with data analytics have facilitated understanding of biological processes and allow ample access to diverse metabolic pathways utilized for genetic manipulations making microalgal factories more efficient. The present review discusses state-of-art "Algomics" and the prospect of microalgae and their role in symbiotic association by using omics approaches including genomics, transcriptomics, proteomics and metabolomics. Microalgal based uni- and multi-omics approaches are critically analyzed in wastewater treatment, metal toxicity and remediation, biofuel production, and therapeutics to provide an imminent outlook for an array of environmentally sustainable and economically viable microalgal applications.
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Affiliation(s)
- Arti Mishra
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Kristina Medhi
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Piyush Malaviya
- Department of Environmental Science, University of Jammu, Jammu (J&K), India
| | - Indu Shekhar Thakur
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India.
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31
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Sansone C, Brunet C. Promises and Challenges of Microalgal Antioxidant Production. Antioxidants (Basel) 2019; 8:E199. [PMID: 31252612 PMCID: PMC6680390 DOI: 10.3390/antiox8070199] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 06/20/2019] [Accepted: 06/25/2019] [Indexed: 11/17/2022] Open
Abstract
The exploration of natural antioxidants for nutraceuticals and pharmaceuticals industries has recently increased. This communication aims to grasp the relevance of microalgae in the panorama of natural antioxidant molecules supply to industrial applications as alternatives and/or complements to those typically used from higher plants. Microalgal richness in antioxidant compounds and scavenging ability compared to higher plants is discussed in the context of microalgal biodiversity. We mainly focus on families of powerful antioxidant compounds that have been scarcely investigated in microalgae, such as phenolic compounds, sterols, or vitamins, discussing the promise and challenges of microalgae as providers of health benefits, for instance, through their use as functional food ingredients.
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Affiliation(s)
- Clementina Sansone
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy
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32
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Smerilli A, Balzano S, Maselli M, Blasio M, Orefice I, Galasso C, Sansone C, Brunet C. Antioxidant and Photoprotection Networking in the Coastal Diatom Skeletonema marinoi. Antioxidants (Basel) 2019; 8:E154. [PMID: 31159429 PMCID: PMC6617368 DOI: 10.3390/antiox8060154] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 05/23/2019] [Accepted: 05/29/2019] [Indexed: 11/17/2022] Open
Abstract
Little is known on the antioxidant activity modulation in microalgae, even less in diatoms. Antioxidant molecule concentrations and their modulation in microalgae has received little attention and the interconnection between light, photosynthesis, photoprotection, and antioxidant network in microalgae is still unclear. To fill this gap, we selected light as external forcing to drive physiological regulation and acclimation in the costal diatom Skeletonema marinoi. We investigated the role of light regime on the concentration of ascorbic acid, phenolic compounds and among them flavonoids and their connection with photoprotective mechanisms. We compared three high light conditions, differing in either light intensity or wave distribution, with two low light conditions, differing in photoperiod, and a prolonged darkness. The change in light distribution, from sinusoidal to square wave distribution was also investigated. Results revealed a strong link between photoprotection, mainly relied on xanthophyll cycle operation, and the antioxidant molecules and activity modulation. This study paves the way for further investigation on the antioxidant capacity of diatoms, which resulted to be strongly forced by light conditions, also in the view of their potential utilization in nutraceuticals or new functional cosmetic products.
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Affiliation(s)
- Arianna Smerilli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Sergio Balzano
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Maira Maselli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
- Department of Biology, University of Copenhagen, Strandpromenaden 5, 3000 Helsingør, Denmark.
| | - Martina Blasio
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Ida Orefice
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Christian Galasso
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Clementina Sansone
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
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Su Y. The effect of different light regimes on pigments in Coscinodiscus granii. PHOTOSYNTHESIS RESEARCH 2019; 140:301-310. [PMID: 30478709 DOI: 10.1007/s11120-018-0608-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 11/20/2018] [Indexed: 06/09/2023]
Abstract
The influence of six different light regimes throughout the photosynthetically active radiation range (from 400 to 700 nm, including blue, green, yellow, red-orange, red, and white) at two intensities (100 and 300 µmol photons m-2 s-1) on pigmentation was assessed for the centric marine diatom Coscinodiscus granii for the first time. Chlorophyll (Chl) a and fucoxanthin were the dominating pigments in all treatments. The cellular concentrations of light harvesting pigment (Chl a, Chl c1 + c2, and fucoxanthin) were higher at 100 than at 300 µmol photons m-2 s-1 at all wavelengths, with the largest increases at red and blue light. The normalized concentrations of photoprotective pigments (violaxanthin, zeaxanthin, diadinoxanthin, and diatoxanthin) were higher at high light intensity than in cells grown at low light intensity. An increase in β-carotene in low light conditions is expected as the increased Chl a was related to increased photosynthetic subunits which require β-carotene (bound to photosystem core). At 300 µmol photons m-2 s-1, yellow light resulted in significantly lower concentration of most of the detected pigments than the other wavelengths. At 100 µmol photons m-2 s-1, W and B light led to statistically lower and higher concentration of most of the detected pigments than the other wavelengths, respectively.
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Affiliation(s)
- Yanyan Su
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark.
- Carlsberg Research Laboratory, Bjerregaardsvej 5, 2500, Valby, Denmark.
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Galasso C, Gentile A, Orefice I, Ianora A, Bruno A, Noonan DM, Sansone C, Albini A, Brunet C. Microalgal Derivatives as Potential Nutraceutical and Food Supplements for Human Health: A Focus on Cancer Prevention and Interception. Nutrients 2019; 11:E1226. [PMID: 31146462 PMCID: PMC6627306 DOI: 10.3390/nu11061226] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/17/2019] [Accepted: 05/21/2019] [Indexed: 12/13/2022] Open
Abstract
Epidemiological studies are providing strong evidence on beneficial health effects from dietary measures, leading scientists to actively investigate which foods and which specific agents in the diet can prevent diseases. Public health officers and medical experts should collaborate toward the design of disease prevention diets for nutritional intervention. Functional foods are emerging as an instrument for dietary intervention in disease prevention. Functional food products are technologically developed ingredients with specific health benefits. Among promising sources of functional foods and chemopreventive diets of interest, microalgae are gaining worldwide attention, based on their richness in high-value products, including carotenoids, proteins, vitamins, essential amino acids, omega-rich oils and, in general, anti-inflammatory and antioxidant compounds. Beneficial effects of microalgae on human health and/or wellness could in the future be useful in preventing or delaying the onset of cancer and cardiovascular diseases. During the past decades, microalgal biomass was predominately used in the health food market, with more than 75% of the annual microalgal biomass production being employed for the manufacture of powders, tablets, capsules or pastilles. In this review, we report and discuss the present and future role of microalgae as marine sources of functional foods/beverages for human wellbeing, focusing on perspectives in chemoprevention. We dissected this topic by analyzing the different classes of microalgal compounds with health outputs (based on their potential chemoprevention activities), the biodiversity of microalgal species and how to improve their cultivation, exploring the perspective of sustainable food from the sea.
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Affiliation(s)
- Christian Galasso
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Antonio Gentile
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Ida Orefice
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Adrianna Ianora
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Antonino Bruno
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy.
| | - Douglas M Noonan
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy.
- Department of Biotechnology and Life Sciences, University of Insubria, 211000 Varese, Italy.
| | | | - Adriana Albini
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy.
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy.
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
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Hwang SW, Choi HI, Sim SJ. Acidic cultivation of Haematococcus pluvialis for improved astaxanthin production in the presence of a lethal fungus. BIORESOURCE TECHNOLOGY 2019; 278:138-144. [PMID: 30685617 DOI: 10.1016/j.biortech.2019.01.080] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 01/15/2019] [Accepted: 01/19/2019] [Indexed: 06/09/2023]
Abstract
An acidic cultivation strategy was developed to prevent contamination of a lethal fungus Paraphysoderma sedebokerensis in Haematococcus pluvialis culture for astaxanthin production. Instead of generally used neutral pH, an acidic condition (pH 4) was applied to the cultivation, resulting in a significant inhibition of the fungal contamination. This could be ascribed to the acidity-associated denaturation of a surface protein of P. sedebokerensis, which plays an important role in recognition of H. pluvialis. Stress relief strategies including stepwise light irradiation and naturally occurring nitrogen deficiency were employed in the induction stage to minimize the reduction of astaxanthin production caused by acidic pH. Accordingly, an astaxanthin titer of 84.8 mg L-1 was obtained, which is 141-fold of that from the completely contaminated culture and double of that without the stress relief methods. This strategy provides a persistent contamination control method that can be used for practical astaxanthin production by H. pluvialis.
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Affiliation(s)
- Sung-Won Hwang
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
| | - Hong Il Choi
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
| | - Sang Jun Sim
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, South Korea.
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Orefice I, Musella M, Smerilli A, Sansone C, Chandrasekaran R, Corato F, Brunet C. Role of nutrient concentrations and water movement on diatom's productivity in culture. Sci Rep 2019; 9:1479. [PMID: 30728371 PMCID: PMC6365584 DOI: 10.1038/s41598-018-37611-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 12/10/2018] [Indexed: 02/06/2023] Open
Abstract
Microalgal growth maximization is becoming a duty for enhancing the biotechnological fate of these photosynthetic microorganisms. This study, based on an extensive set of data, aims to revisit diatom’s cultivation in laboratory with the objective to increase growth rate and biomass production. We investigated the growth ability and resource requirements of the coastal diatom Skeletonema marinoi Sarno & Zingone grown in laboratory in the conventional f/2 medium with aeration and in two modified conditions: (i) the same medium with water movement inside and (ii) an enriched medium with the same water movement. Results revealed that, by doubling the concentration of phosphate, silicate, microelements and vitamins, growth rate was successfully enhanced, preventing phosphate or silicate limitation in the f/2 culture medium. Yet, irrespective of the media (f/2 or enriched one), water movement induced an increase of growth efficiency compared to aeration, affecting nutrients’ requirement and consumption by diatoms. This study is an important step for enhancing diatom biomass production, reducing its cost, as required in the blue biotechnology context.
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Affiliation(s)
- Ida Orefice
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy
| | - Margherita Musella
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy
| | - Arianna Smerilli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy
| | - Clementina Sansone
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy
| | - Raghu Chandrasekaran
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy.,CAS in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, 608502, Tamil Nadu, India
| | - Federico Corato
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy.
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