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Cho KH, Wolny J, Kase JA, Unno T, Pachepsky Y. Interactions of E. coli with algae and aquatic vegetation in natural waters. WATER RESEARCH 2022; 209:117952. [PMID: 34965489 DOI: 10.1016/j.watres.2021.117952] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 11/27/2021] [Accepted: 12/05/2021] [Indexed: 06/14/2023]
Abstract
Both algae and bacteria are essential inhabitants of surface waters. Their presence is of ecological significance and sometimes of public health concern triggering various control actions. Interactions of microalgae, macroalgae, submerged aquatic vegetation, and bacteria appear to be important phenomena necessitating a deeper understanding by those involved in research and management of microbial water quality. Given the long-standing reliance on Escherichia coli as an indicator of the potential presence of pathogens in natural waters, understanding its biology in aquatic systems is necessary. The major effects of algae and aquatic vegetation on E. coli growth and survival, including changes in the nutrient supply, modification of water properties and constituents, impact on sunlight radiation penetration, survival as related to substrate attachment, algal mediation of secondary habitats, and survival inhibition due to the release of toxic substances and antibiotics, are discussed in this review. An examination of horizontal gene transfer and antibiotic resistance potential, strain-specific interactions, effects on the microbial, microalgae, and grazer community structure, and hydrodynamic controls is given. Outlooks due to existing and expected consequences of climate change and advances in observation technologies via high-resolution satellite imaging, unmanned aerial vehicles (drones), and mathematical modeling are additionally covered. The multiplicity of interactions among bacteria, algae, and aquatic vegetation as well as multifaceted impacts of these interactions, create a wide spectrum of research opportunities and technology developments.
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Affiliation(s)
- Kyung Hwa Cho
- Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Jennifer Wolny
- Division of Microbiology, Office of Regulatory Science, Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, USA
| | - Julie A Kase
- Division of Microbiology, Office of Regulatory Science, Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, USA
| | - Tatsui Unno
- College of Applied Life Science, Jeju National University, Republic of Korea
| | - Yakov Pachepsky
- Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, U.S. Department of Agriculture, USA.
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Antimicrobial and Antioxidant Potential of Scenedesmus obliquus Microalgae in the Context of Integral Biorefinery Concept. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27020519. [PMID: 35056838 PMCID: PMC8778625 DOI: 10.3390/molecules27020519] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/10/2022] [Accepted: 01/12/2022] [Indexed: 12/30/2022]
Abstract
Small-scale photobioreactors (PBRs) in the inoculum stage were designed with internal (red or green) and external white LED light as an initial step of a larger-scale installation aimed at fulfilling the integral biorefinery concept for maximum utilization of microalgal biomass in a multifunctional laboratory. The specific growth rate of Scenedesmus obliquus (Turpin) Kützing biomass for given cultural conditions was analyzed by using MAPLE software. For the determination of total polyphenols, flavonoids, chlorophyll “a” and “b”, carotenoids and lipids, UHPLC-HRMS, ISO-20776/1, ISO-10993-5 and CUPRAC tests were carried out. Under red light growing, a higher content of polyphenols was found, while the green light favoured the flavonoid accumulation in the biomass. Chlorophylls, carotenoids and lipids were in the same order of magnitude in both samples. The dichloromethane extracts obtained from the biomass of each PBR synergistically potentiated at low concentrations (0.01–0.05 mg/mL) the antibacterial activity of penicillin, fluoroquinolones or oregano essential oil against the selected food-borne pathogens (Staphylococcus aureus, Escherichia coli and Salmonella typhimurium) without showing any in vitro cytotoxicity. Both extracts exhibited good cupric ion-reducing antioxidant capacity at concentrations above 0.042–0.08 mg/mL. The UHPLC-HRMS analysis revealed that both extracts contained long chain fatty acids and carotenoids thus explaining their antibacterial and antioxidant potential. The applied engineering approach showed a great potential to modify microalgae metabolism for the synthesis of target compounds by S. obliquus with capacity for the development of health-promoting nutraceuticals for poultry farming.
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Lykov AP, Uvarov IP, Gevorgiz RG, Zheleznova SN. Effect of the Lipid Fraction of Microalgae on Biochemical Parameters in Female C57BL/6 Mice. Bull Exp Biol Med 2022; 172:301-304. [PMID: 35001308 DOI: 10.1007/s10517-022-05381-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Indexed: 11/24/2022]
Abstract
We studied the effect of microalgae of various systematic groups added to the ration on the biochemical parameters of blood serum and liver and kidney tissue in rats. It was found that microalgae had different effects on the levels of proteins, lipids, and sex hormones, activity of aminotransaminases, and filtration capacity of the kidneys. Microalgae also affected the biochemical parameters of the liver and kidney tissues.
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Affiliation(s)
- A P Lykov
- Research Institute of Clinical and Experimental Lymphology - Affiliated Branch of Federal Research Centre Institute of Cytology and Genetics, Siberian Division of Russian Academy of Sciences, Novosibirsk, Russia.
| | - I P Uvarov
- Department of Veterinary Medicine of the City of Novosibirsk, Novosibirsk, Russia
| | - R G Gevorgiz
- Federal Research Centre O. A. Kovalevsky Institute of Biology of the Southern Seas, Russian Academy of Sciences, Sevastopol, Russia
| | - S N Zheleznova
- Federal Research Centre O. A. Kovalevsky Institute of Biology of the Southern Seas, Russian Academy of Sciences, Sevastopol, Russia
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Hasan EA, El-Hashash MA, Zahran MK, El-Rafie HM. Comparative study of chemical composition, antioxidant and anticancer activities of both Turbinaria decurrens Bory methanol extract and its biosynthesized gold nanoparticles. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.103005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Vieira MV, Turkiewicz IP, Tkacz K, Fuentes-Grünewald C, Pastrana LM, Fuciños P, Wojdyło A, Nowicka P. Microalgae as a Potential Functional Ingredient: Evaluation of the Phytochemical Profile, Antioxidant Activity and In-Vitro Enzymatic Inhibitory Effect of Different Species. Molecules 2021; 26:7593. [PMID: 34946676 PMCID: PMC8707863 DOI: 10.3390/molecules26247593] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 12/09/2021] [Accepted: 12/10/2021] [Indexed: 11/16/2022] Open
Abstract
The functional food market has been in a state of constant expansion due to the increasing awareness of the impact of the diet on human health. In the search for new natural resources that could act as a functional ingredient for the food industry, microalgae represent a promising alternative, considering their high nutritional value and biosynthesis of numerous bioactive compounds with reported biological properties. In the present work, the phytochemical profile, antioxidant activity, and enzymatic inhibitory effect aiming at different metabolic disorders (Alzheimer's disease, Type 2 diabetes, and obesity) were evaluated for the species Porphyridium purpureum, Chlorella vulgaris, Arthorspira platensis, and Nannochloropsis oculata. All the species presented bioactive diversity and important antioxidant activity, demonstrating the potential to be used as functional ingredients. Particularly, P. purpureum and N. oculata exhibited higher carotenoid and polyphenol content, which was reflected in their superior biological effects. Moreover, the species P. purpureum exhibited remarkable enzymatic inhibition for all the analyses.
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Affiliation(s)
- Marta Vinha Vieira
- Department of Fruit, Vegetable and Nutraceutical Plant Technology, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, 37 Chełmonskiego Street, 51-630 Wrocław, Poland; (M.V.V.); (I.P.T.); (K.T.)
- International Iberian Nanotechnology Laboratory, Food Processing and Nutrition Research Group, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (L.M.P.); (P.F.)
| | - Igor Piotr Turkiewicz
- Department of Fruit, Vegetable and Nutraceutical Plant Technology, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, 37 Chełmonskiego Street, 51-630 Wrocław, Poland; (M.V.V.); (I.P.T.); (K.T.)
| | - Karolina Tkacz
- Department of Fruit, Vegetable and Nutraceutical Plant Technology, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, 37 Chełmonskiego Street, 51-630 Wrocław, Poland; (M.V.V.); (I.P.T.); (K.T.)
| | | | - Lorenzo M. Pastrana
- International Iberian Nanotechnology Laboratory, Food Processing and Nutrition Research Group, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (L.M.P.); (P.F.)
| | - Pablo Fuciños
- International Iberian Nanotechnology Laboratory, Food Processing and Nutrition Research Group, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (L.M.P.); (P.F.)
| | - Aneta Wojdyło
- Department of Fruit, Vegetable and Nutraceutical Plant Technology, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, 37 Chełmonskiego Street, 51-630 Wrocław, Poland; (M.V.V.); (I.P.T.); (K.T.)
| | - Paulina Nowicka
- Department of Fruit, Vegetable and Nutraceutical Plant Technology, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, 37 Chełmonskiego Street, 51-630 Wrocław, Poland; (M.V.V.); (I.P.T.); (K.T.)
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Microalgal Systems for Wastewater Treatment: Technological Trends and Challenges towards Waste Recovery. ENERGIES 2021. [DOI: 10.3390/en14238112] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Wastewater (WW) treatment using microalgae has become a growing trend due the economic and environmental benefits of the process. As microalgae need CO2, nitrogen, and phosphorus to grow, they remove these potential pollutants from wastewaters, making them able to replace energetically expensive treatment steps in conventional WW treatment. Unlike traditional sludge, biomass can be used to produce biofuels, biofertilizers, high value chemicals, and even next-generation growth media for “organically” grown microalgal biomass targeting zero-waste policies and contributing to a more sustainable circular bioeconomy. The main challenge in this technology is the techno-economic feasibility of the system. Alternatives such as the isolation of novel strains, the use of native consortia, and the design of new bioreactors have been studied to overcome this and aid the scale-up of microalgal systems. This review focuses on the treatment of urban, industrial, and agricultural wastewaters by microalgae and their ability to not only remove, but also promote the reuse, of those pollutants. Opportunities and future prospects are discussed, including the upgrading of the produced biomass into valuable compounds, mainly biofuels.
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Gara-Ali M, Zili F, Hosni K, Ben Ouada H, Ben-Mahrez K. Lipophilic extracts of the thermophilic cyanobacterium Leptolyngbya sp. and chlorophyte Graesiella sp. and their potential use as food and anticancer agents. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sides R, Griess-Fishheimer S, Zaretsky J, Shitrit A, Kalev-Altman R, Rozner R, Beresh O, Dumont M, Penn S, Shahar R, Monsonego-Ornan E. The Use of Mushrooms and Spirulina Algae as Supplements to Prevent Growth Inhibition in a Pre-Clinical Model for an Unbalanced Diet. Nutrients 2021; 13:nu13124316. [PMID: 34959867 PMCID: PMC8705242 DOI: 10.3390/nu13124316] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/26/2021] [Accepted: 11/27/2021] [Indexed: 12/13/2022] Open
Abstract
Today’s eating patterns are characterized by the consumption of unbalanced diets (UBDs) resulting in a variety of health consequences on the one hand, and the consumption of dietary supplements in order to achieve overall health and wellness on the other. Balanced nutrition is especially crucial during childhood and adolescence as these time periods are characterized by rapid growth and development of the skeleton. We show the harmful effect of UBD on longitudinal bone growth, trabecular and cortical bone micro-architecture and bone mineral density; which were analyzed by micro-CT scanning. Three point bending tests demonstrate the negative effect of the diet on the mechanical properties of the bone material as well. Addition of Spirulina algae or Pleurotus eryngii or Agaricus bisporus mushrooms, to the UBD, was able to improve growth and impaired properties of the bone. 16SrRNA Sequencing identified dysbiosis in the UBD rats’ microbiota, with high levels of pro-inflammatory associated bacteria and low levels of bacteria associated with fermentation processes and bone related mechanisms. These results provide insight into the connection between diet, the skeletal system and the gut microbiota, and reveal the positive impact of three chosen dietary supplements on bone development and quality presumably through the microbiome composition.
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Affiliation(s)
- Roni Sides
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (R.S.); (S.G.-F.); (J.Z.); (A.S.); (R.K.-A.); (R.R.); (O.B.); (S.P.)
| | - Shelley Griess-Fishheimer
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (R.S.); (S.G.-F.); (J.Z.); (A.S.); (R.K.-A.); (R.R.); (O.B.); (S.P.)
| | - Janna Zaretsky
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (R.S.); (S.G.-F.); (J.Z.); (A.S.); (R.K.-A.); (R.R.); (O.B.); (S.P.)
| | - Astar Shitrit
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (R.S.); (S.G.-F.); (J.Z.); (A.S.); (R.K.-A.); (R.R.); (O.B.); (S.P.)
| | - Rotem Kalev-Altman
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (R.S.); (S.G.-F.); (J.Z.); (A.S.); (R.K.-A.); (R.R.); (O.B.); (S.P.)
- Koret School of Veterinary, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (M.D.); (R.S.)
| | - Reut Rozner
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (R.S.); (S.G.-F.); (J.Z.); (A.S.); (R.K.-A.); (R.R.); (O.B.); (S.P.)
| | - Olga Beresh
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (R.S.); (S.G.-F.); (J.Z.); (A.S.); (R.K.-A.); (R.R.); (O.B.); (S.P.)
| | - Maïtena Dumont
- Koret School of Veterinary, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (M.D.); (R.S.)
| | - Svetlana Penn
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (R.S.); (S.G.-F.); (J.Z.); (A.S.); (R.K.-A.); (R.R.); (O.B.); (S.P.)
| | - Ron Shahar
- Koret School of Veterinary, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (M.D.); (R.S.)
| | - Efrat Monsonego-Ornan
- Institute of Biochemistry and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (R.S.); (S.G.-F.); (J.Z.); (A.S.); (R.K.-A.); (R.R.); (O.B.); (S.P.)
- Correspondence:
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Shahid A, Khurshid M, Aslam B, Muzammil S, Mehwish HM, Rajoka MSR, Hayat HF, Sarfraz MH, Razzaq MK, Nisar MA, Waseem M. Cyanobacteria derived compounds: Emerging drugs for cancer management. J Basic Microbiol 2021; 62:1125-1142. [PMID: 34747529 DOI: 10.1002/jobm.202100459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/11/2021] [Accepted: 10/22/2021] [Indexed: 11/06/2022]
Abstract
The wide diversity of cyanobacterial species and their role in a variety of biological activities have been reported in the previous few years. Cyanobacteria, especially from marine sources, constitutes a major source of biologically active metabolites that have gained great attention especially due to their anticancer potential. Numerous chemically diverse metabolites from various cyanobacterial species have been recognized to inhibit the growth and progression of tumor cells through the induction of apoptosis in many different types of cancers. These metabolites activate the apoptosis in the cancer cells by different molecular mechanisms, however, the dysregulation of the mitochondrial pathway, death receptors signaling pathways, and the activation of several caspases are the crucial mechanisms that got considerable interest. The array of metabolites and the range of mechanisms involved may also help to overcome the resistance acquired by the different tumor types against the ongoing therapeutic agents. Therefore, the primary or secondary metabolites from the cyanobacteria as well as their synthetic derivates could be used to develop novel anticancer drugs alone or in combination with other chemotherapeutic agents. In this study, we have discussed the role of cyanobacterial metabolites in the induction of cytotoxicity and the potential to inhibit the growth of cancer cells through the induction of apoptosis, cell signaling alteration, oxidative damage, and mitochondrial dysfunctions. Moreover, the various metabolites produced by cyanobacteria have been summarized with their anticancer mechanisms. Furthermore, the ongoing trials and future developments for the therapeutic implications of these compounds in cancer therapy have been discussed.
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Affiliation(s)
- Aqsa Shahid
- Faculty of Rehabilitation and Allied Health Sciences, Riphah International University, Faisalabad, Pakistan
| | - Mohsin Khurshid
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | - Bilal Aslam
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | - Saima Muzammil
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | | | - Muhammad Shahid Riaz Rajoka
- School of Basic Medicine, Health Science Center, Shenzhen University, Shenzhen, China.,Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Hafiz Fakhar Hayat
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | | | - Muhammad Khuram Razzaq
- Soybean Research Institute, National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing, China
| | - Muhammad Atif Nisar
- Department of Microbiology, Government College University, Faisalabad, Pakistan.,College of Science and Engineering, Flinders University, Bedford Park, Australia
| | - Muhammad Waseem
- Department of Microbiology, Government College University, Faisalabad, Pakistan
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Miguel SP, Ribeiro MP, Otero A, Coutinho P. Application of microalgae and microalgal bioactive compounds in skin regeneration. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102395] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Menaa F, Wijesinghe U, Thiripuranathar G, Althobaiti NA, Albalawi AE, Khan BA, Menaa B. Marine Algae-Derived Bioactive Compounds: A New Wave of Nanodrugs? Mar Drugs 2021; 19:484. [PMID: 34564146 PMCID: PMC8469996 DOI: 10.3390/md19090484] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/16/2021] [Accepted: 08/19/2021] [Indexed: 02/07/2023] Open
Abstract
Marine algae are rich in bioactive nutraceuticals (e.g., carbohydrates, proteins, minerals, fatty acids, antioxidants, and pigments). Biotic (e.g., plants, microorganisms) and abiotic factors (e.g., temperature, pH, salinity, light intensity) contribute to the production of primary and secondary metabolites by algae. Easy, profitable, and sustainable recovery methods include novel solid-liquid and liquid-liquid extraction techniques (e.g., supercritical, high pressure, microwave, ultrasound, enzymatic). The spectacular findings of algal-mediated synthesis of nanotheranostics has attracted further interest because of the availability of microalgae-based natural bioactive therapeutic compounds and the cost-effective commercialization of stable microalgal drugs. Algal extracts can serve as stabilizing/capping and reducing agents for the synthesis of thermodynamically stable nanoparticles (NPs). Different types of nanotherapeutics have been synthesized using physical, chemical, and biological methods. Marine algae are a fascinating source of lead theranostics compounds, and the development of nanotheranostics has been linked to enhanced drug efficacy and safety. Indeed, algae are remarkable nanobiofactories, and their pragmatic properties reside in their (i) ease of handling; (ii) capacity to absorb/accumulate inorganic metallic ions; (iii) cost-effectiveness; and (iv) capacity of eco-friendly, rapid, and healthier synthesis of NPs. Preclinical and clinical trials shall enable to really define effective algal-based nanotherapies. This review aims to provide an overview of the main algal compounds that are nutraceuticals and that can be extracted and purified for nanotheranostic purposes.
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Affiliation(s)
- Farid Menaa
- Department of Internal Medicine and Nanomedicine, Fluorotronics-CIC, San Diego, CA 92037, USA;
| | - Udari Wijesinghe
- Institute of Chemistry Ceylon, College of Chemical Sciences, Rajagiriya 10107, Sri Lanka; (U.W.); (G.T.)
| | - Gobika Thiripuranathar
- Institute of Chemistry Ceylon, College of Chemical Sciences, Rajagiriya 10107, Sri Lanka; (U.W.); (G.T.)
| | - Norah A. Althobaiti
- Biology Department, College of Science and Humanities, Shaqra University, Al Quwaiiyah 19257, Saudi Arabia;
| | - Aishah E. Albalawi
- Biology Department, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia;
| | - Barkat Ali Khan
- Department of Pharmacy, Gomal University, Dera Ismail Khan 29050, Pakistan;
| | - Bouzid Menaa
- Department of Internal Medicine and Nanomedicine, Fluorotronics-CIC, San Diego, CA 92037, USA;
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Silva M, Seijas P, Otero P. Exploitation of Marine Molecules to Manage Alzheimer's Disease. Mar Drugs 2021; 19:md19070373. [PMID: 34203244 PMCID: PMC8307759 DOI: 10.3390/md19070373] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/17/2021] [Accepted: 06/23/2021] [Indexed: 02/07/2023] Open
Abstract
Neurodegenerative diseases are sociosanitary challenges of today, as a result of increased average life expectancy, with Alzheimer’s disease being one of the most prevalent. This pathology is characterized by brain impairment linked to a neurodegenerative process culminating in cognitive decline and behavioral disorders. Though the etiology of this pathology is still unknown, it is usually associated with the appearance of senile plaques and neurofibrillary tangles. The most used prophylaxis relies on anticholinesterase drugs and NMDA receptor antagonists, whose main action is to relieve symptoms and not to treat or prevent the disease. Currently, the scientific community is gathering efforts to disclose new natural compounds effective against Alzheimer’s disease and other neurodegenerative pathologies. Marine natural products have been shown to be promising candidates, and some have been proven to exert a high neuroprotection effect, constituting a large reservoir of potential drugs and nutraceutical agents. The present article attempts to describe the processes of extraction and isolation of bioactive compounds derived from sponges, algae, marine bacteria, invertebrates, crustaceans, and tunicates as drug candidates against AD, with a focus on the success of pharmacological activity in the process of finding new and effective drug compounds.
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Affiliation(s)
- Marisa Silva
- MARE—Marine and Environmental Sciences Centre, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisbon, Portugal;
- Department of Plant Biology, Faculty of Science, University of Lisbon, Campo Grande, 1749-016 Lisbon, Portugal
| | - Paula Seijas
- Department of Pharmacology, Faculty of Pharmacy, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| | - Paz Otero
- Department of Pharmacology, Faculty of Pharmacy, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain;
- Department of Production and Characterization of Novel Foods, Institute of Food Science Research (CIAL), Campus of International Excellence UAM+CSIC, 28049 Madrid, Spain
- Nutrition and Bromatology Group, CITACA, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, 32004 Ourense, Spain
- Correspondence: or
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Saadaoui I, Rasheed R, Aguilar A, Cherif M, Al Jabri H, Sayadi S, Manning SR. Microalgal-based feed: promising alternative feedstocks for livestock and poultry production. J Anim Sci Biotechnol 2021; 12:76. [PMID: 34134776 PMCID: PMC8359609 DOI: 10.1186/s40104-021-00593-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 04/06/2021] [Indexed: 11/18/2022] Open
Abstract
There is an immediate need to identify alternative sources of high-nutrient feedstocks for domestic livestock production and poultry, not only to support growing food demands but also to produce microalgae-source functional foods with multiple health benefits. Various species of microalgae and cyanobacteria are used to supplement existing feedstocks. In this review, microalgae have been defined as a potential feedstock for domestic animals due to their abundance of proteins, carbohydrates, lipids, minerals, vitamins, and other high-value products. Additionally, the positive physiological effects on products of animals fed with microalgal biomass have been compiled and recommendations are listed to enhance the assimilation of biomolecules in ruminant and nonruminant animals, which possess differing digestive systems. Furthermore, the role of microalgae as prebiotics is also discussed. With regards to large scale cultivation of microalgae for use as feed, many economic trade-offs must be considered such as the selection of strains with desired nutritional properties, cultivation systems, and steps for downstream processing. These factors are highlighted with further investigations needed to reduce the overall costs of cultivation. Finally, this review outlines the pros and cons of utilizing microalgae as a supplementary feedstock for poultry and cattle, existing cultivation strategies, and the economics of large-scale microalgal production.
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Affiliation(s)
- Imen Saadaoui
- Center for Sustainable Development, College of Arts and Sciences, Qatar University, P.O.Box.2713, Doha, Qatar.
| | - Rihab Rasheed
- Center for Sustainable Development, College of Arts and Sciences, Qatar University, P.O.Box.2713, Doha, Qatar
| | - Ana Aguilar
- Department of Molecular Biosciences, UTEX Culture Collection of Algae, University of Texas at Austin, Austin, TX, 78712, USA
| | - Maroua Cherif
- Center for Sustainable Development, College of Arts and Sciences, Qatar University, P.O.Box.2713, Doha, Qatar
| | - Hareb Al Jabri
- Center for Sustainable Development, College of Arts and Sciences, Qatar University, P.O.Box.2713, Doha, Qatar
| | - Sami Sayadi
- Center for Sustainable Development, College of Arts and Sciences, Qatar University, P.O.Box.2713, Doha, Qatar
| | - Schonna R Manning
- Department of Molecular Biosciences, UTEX Culture Collection of Algae, University of Texas at Austin, Austin, TX, 78712, USA
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Fais G, Malavasi V, Scano P, Soru S, Caboni P, Cao G. Metabolomics and lipid profile analysis of Coccomyxa melkonianii SCCA 048. Extremophiles 2021; 25:357-368. [PMID: 34057605 PMCID: PMC8254698 DOI: 10.1007/s00792-021-01234-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 05/20/2021] [Indexed: 01/05/2023]
Abstract
With an unsupervised GC-MS metabolomics approach, polar metabolite changes of the microalgae Coccomyxa melkonianii SCCA 048 grown under standard conditions for seven weeks were studied. C. melkonianii was sampled at the Rio Irvi River, in the mining site of Montevecchio-Ingurtosu (Sardinia, Italy), which is severely contaminated by heavy metals and shows high concentrations of sulfates. The partial-least-square (PLS) analysis of the GC-MS data indicated that growth of C. melkonianii was characterized by an increase of the levels of threonic acid, myo-inositol, malic acid, and fumaric acid. Furthermore, at the sixth week of exponential phase the lipid fingerprint of C. melkonianii was studied by LC-QTOF-MS. C. melkonianii lipid extract characterized through an iterative MS/MS analysis showed the following percent levels: 61.34 ± 0.60% for triacylglycerols (TAG); 11.55 ± 0.09% for diacylglyceryltrimethyl homoserines (DGTS), 11.34 ± 0.10% for sulfoquinovosyldiacylglycerols (SQDG) and, 5.29 ± 0.04% for lysodiacylglyceryltrimethyl homoserines (LDGTS). Noteworthy, we were able to annotate different fatty acid ester of hydroxyl fatty acid, such as FAHFA (18:1_20:3), FAHFA (18:2_20:4), FAHFA (18:0_20:2), and FAHFA (18:1_18:0), with relevant biological activity. These approaches can be useful to study the biochemistry of this extremophile algae in the view of its potential exploitation in the phycoremediation of polluted mining areas.
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Affiliation(s)
- Giacomo Fais
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, via San Giorgio 12, 09124, Cagliari, Italy
| | - Veronica Malavasi
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, via San Giorgio 12, 09124, Cagliari, Italy
| | - Paola Scano
- Department of Life and Environmental Sciences, University of Cagliari, 09124, Cagliari, Italy
| | - Santina Soru
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, via San Giorgio 12, 09124, Cagliari, Italy
| | - Pierluigi Caboni
- Department of Life and Environmental Sciences, University of Cagliari, 09124, Cagliari, Italy.
| | - Giacomo Cao
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, via San Giorgio 12, 09124, Cagliari, Italy.,Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, piazza d'Armi, 09123, Cagliari, Italy
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Resende DI, Ferreira M, Magalhães C, Sousa Lobo J, Sousa E, Almeida IF. Trends in the use of marine ingredients in anti-aging cosmetics. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102273] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Adejumo SA, Oli AN, Okoye EI, Nwakile CD, Ojiako CM, Okezie UM, Okeke IJ, Ofomata CM, Attama AA, Okoyeh JN, Esimone CO. Biosurfactant Production Using Mutant Strains of Pseudomonas aeruginosa and Bacillus subtilis from Agro-industrial Wastes. Adv Pharm Bull 2021; 11:543-556. [PMID: 34513630 PMCID: PMC8421616 DOI: 10.34172/apb.2021.063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 10/19/2020] [Accepted: 10/19/2020] [Indexed: 12/22/2022] Open
Abstract
Purpose: Biosurfactants are applied in drug formulations to improve drug solubility and in some cases, treat diseases. This study is focused on generating, extracting, purifying and then characterizing biosurfactants from bacterial isolates of palm oil wastes and abattoir soil origins. Methods: Eight bacteria were isolated from the soil and sludge samples, out of which four (50%) were found to produce biosurfactants. Bacillus subtilis (37.5%) and Pseudomonas aeruginosa (50%) were isolated and identified from these samples using mineral salt medium, nutrient agar and Cetrimide agar. Mutant isolates of B. subtilis BS3 and P. aeruginosa PS2 were used to produce biosurfactants using mineral salt medium as enrichment medium and extraction was done using membrane filter. Results: The mutant strains B. subtilis BS3 and P. aeruginosa PS2 generated biosurfactants that displayed significant solubility and dissolution properties by enhancing the percentage solubility of piroxicam to 62.86 and 54.29% respectively, and achieved 51.71 and 48.71% dissolution of the drug in 0.1N HCl. Conclusion: From the results obtained, the produced biosurfactants could serve as a better alternative to conventional surfactants. Notably, the study indicated that the biosurfactant produced by mutant strain of B. subtilis produced more potent activities (surface tension reduction ability, high emulsification) than those of P. aeruginosa.
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Affiliation(s)
- Samson A. Adejumo
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Nigeria
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Federal University Oye Ekiti, Ekiti State, Nigeria
| | - Angus Nnamdi Oli
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Nigeria
| | - Ebere Innocent Okoye
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Nigeria
| | - Calistus Dozie Nwakile
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Nigeria
| | - Chioma Miracle Ojiako
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Nigeria
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Federal University Oye Ekiti, Ekiti State, Nigeria
| | - Ugochukwu Moses Okezie
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Nigeria
| | - Ifeanyi Justin Okeke
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Nigeria
| | - Chijioke M. Ofomata
- Department of Clinical Pharmacy and Pharmacy Management, Faculty of Pharmaceutical Sciences, Agulu, Nnamdi Azikiwe University, Awka
| | - Anthony A. Attama
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Jude N. Okoyeh
- Department of Biology and Clinical Laboratory Science, Division of Arts and Sciences, Neumann University, One Neumann Drive, Aston, PA 19014-1298, USA
| | - Charles Okechukwu Esimone
- Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Nigeria
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Kiran BR, Venkata Mohan S. Microalgal Cell Biofactory-Therapeutic, Nutraceutical and Functional Food Applications. PLANTS (BASEL, SWITZERLAND) 2021; 10:836. [PMID: 33919450 PMCID: PMC8143517 DOI: 10.3390/plants10050836] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/15/2021] [Accepted: 04/18/2021] [Indexed: 12/11/2022]
Abstract
Microalgae are multifaceted photosynthetic microorganisms with emerging business potential. They are present ubiquitously in terrestrial and aquatic environments with rich species diversity and are capable of producing significant biomass. Traditionally, microalgal biomass is being used as food and feed in many countries around the globe. The production of microalgal-based bioactive compounds at an industrial scale through biotechnological interventions is gaining interest more recently. The present review provides a detailed overview of the key algal metabolites, which plays a crucial role in nutraceutical, functional foods, and animal/aquaculture feed industries. Bioactive compounds of microalgae known to exhibit antioxidant, antimicrobial, antitumor, and immunomodulatory effects were comprehensively reviewed. The potential microalgal species and biological extracts against human pathogens were also discussed. Further, current technologies involved in upstream and downstream bioprocessing including cultivation, harvesting, and cell disruption were documented. Establishing microalgae as an alternative supplement would complement the sustainable and environmental requirements in the framework of human health and well-being.
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Affiliation(s)
| | - S. Venkata Mohan
- Bioengineering and Environmental Sciences Lab, Department of Energy and Environmental Engineering (DEE), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India;
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Jin X, Gong S, Yang B, Wu J, Li T, Wu H, Wu H, Xiang W. Transcriptomic analysis for phosphorus limitation-induced β-glucans accumulation in Chlorella sorokiniana SCSIO 46784 during the early phase of growth. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Production of Chlorella vulgaris Biomass in Tubular Photobioreactors during Different Culture Conditions. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11073106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Biomass of microalgae and the components contained in their cells can be used for the production of heat, electricity, and biofuels. The aim of the presented study was to determine the optimal conditions that will be the most favorable for the production of large amounts of microalgae biomass intended for energy purposes. The study analyzed the effect of the type of lighting, the time of lighting culture, and the pH of the culture medium on the growth of Chlorella vulgaris biomass. The experiment was carried out in vertical tube photobioreactors in three photoperiods: 12/12, 18/6, and 24/0 h (light/dark). Two types of lighting were used in the work: high-pressure sodium light and light-emitting diode. The increase in biomass was determined by the gravimetric method, by the spectrophotometric method on the basis of chlorophyll a contained in the microalgae cells. The number of microalgae cells was also determined with the use of a hemocytometer. The optimal conditions for the production of biomass were recorded at a neutral pH, illuminating the cultures for 18 h a day. The obtained results were 546 ± 7.88 mg·L−1 dry weight under sodium lighting and 543 ± 1.92 mg·L−1 dry weight under light-emitting diode, with maximum biomass productivity of 27.08 ± 7.80 and 25.00 ± 5.1 mg·L−1∙d−1, respectively. The maximum content of chlorophyll a in cells was determined in the 12/12 h cycle and pH 6 (136 ± 14.13 mg∙m−3) under light-emitting diode and 18/6 h, pH 7 (135 ± 6.17 mg∙m−3) under sodium light, with maximum productivity of 26.34 ± 2.01 mg·m−3∙d−1 (light-emitting diode) and 24.21 ± 8.89 mg·m−3∙d−1 (sodium light). The largest number of microalgae cells (2.1 × 106) was obtained at pH 7 and photoperiod of 18/6 h under sodium light, and 12/12 h under light-emitting diode. Based on the results, it can be concluded that the determination of the optimal parameters for the growth and development of microalgae determines the production of their biomass, and such research should be carried out before starting the large-scale production process. In quantifying the biomass during cultivation, it is advantageous to use direct measurement methods.
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Performance of Single and Two-Stage Cross-Flow Ultrafiltration Membrane in Fractionation of Peptide from Microalgae Protein Hydrolysate (Nannochloropsis gaditana). Processes (Basel) 2021. [DOI: 10.3390/pr9040610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Cross-flow ultrafiltration (UF) membrane with two different configurations; single (10 kDa and 5 kDa) and two-stage (10/5 kDa) in fractionating microalgae protein hydrolysate (MPH) were studied to obtain a low molecular weight of peptide. The effect of flow rate, trans-membrane pressure (TMP), and pH in fractionating MPH were evaluated based on permeate flux and peptide transmission. The results showed that, for single UF membrane, optimum operating parameters were at a flow rate of 23 mL/min, TMP of 1.5 bar, and pH of 9, with permeate flux of 43.65 L/m2 h (10 kDa) and 55.42 L/m2 h (5 kDa) and peptide transmission of 58.20% (10 kDa) and 67.34% (5 kDa). Meanwhile, for two-stage (10/5 kDa) UF membrane, the best parameters were observed at a flow rate of 23 mL/min, TMP of 1.5 bar, and pH of 2, with permeate flux of 69.85 L/m2 h and peptide transmission of 79.13%. Fractionation of MPH with two-stage UF membrane was observed to be better at producing a low molecular weight of peptide compared to single UF membrane. In conclusion, it was possible to produce permeate flux with a high amount of low molecular weight of peptide by controlling the operating parameters with the suitable configuration membrane.
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71
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Bahrulolum H, Nooraei S, Javanshir N, Tarrahimofrad H, Mirbagheri VS, Easton AJ, Ahmadian G. Green synthesis of metal nanoparticles using microorganisms and their application in the agrifood sector. J Nanobiotechnology 2021; 19:86. [PMID: 33771172 PMCID: PMC7995756 DOI: 10.1186/s12951-021-00834-3] [Citation(s) in RCA: 114] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 03/14/2021] [Indexed: 01/11/2023] Open
Abstract
The agricultural sector is currently facing many global challenges, such as climate change, and environmental problems such as the release of pesticides and fertilizers, which will be exacerbated in the face of population growth and food shortages. Therefore, the need to change traditional farming methods and replace them with new technologies is essential, and the application of nanotechnology, especially green technology offers considerable promise in alleviating these problems. Nanotechnology has led to changes and advances in many technologies and has the potential to transform various fields of the agricultural sector, including biosensors, pesticides, fertilizers, food packaging and other areas of the agricultural industry. Due to their unique properties, nanomaterials are considered as suitable carriers for stabilizing fertilizers and pesticides, as well as facilitating controlled nutrient transfer and increasing crop protection. The production of nanoparticles by physical and chemical methods requires the use of hazardous materials, advanced equipment, and has a negative impact on the environment. Thus, over the last decade, research activities in the context of nanotechnology have shifted towards environmentally friendly and economically viable 'green' synthesis to support the increasing use of nanoparticles in various industries. Green synthesis, as part of bio-inspired protocols, provides reliable and sustainable methods for the biosynthesis of nanoparticles by a wide range of microorganisms rather than current synthetic processes. Therefore, this field is developing rapidly and new methods in this field are constantly being invented to improve the properties of nanoparticles. In this review, we consider the latest advances and innovations in the production of metal nanoparticles using green synthesis by different groups of microorganisms and the application of these nanoparticles in various agricultural sectors to achieve food security, improve crop production and reduce the use of pesticides. In addition, the mechanism of synthesis of metal nanoparticles by different microorganisms and their advantages and disadvantages compared to other common methods are presented.
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Affiliation(s)
- Howra Bahrulolum
- Department of Industrial Environmental and Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), P.O.BOX: 14155-6343, 1497716316, Tehran, Iran
| | - Saghi Nooraei
- Department of Industrial Environmental and Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), P.O.BOX: 14155-6343, 1497716316, Tehran, Iran
| | - Nahid Javanshir
- Department of Industrial Environmental and Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), P.O.BOX: 14155-6343, 1497716316, Tehran, Iran
| | - Hossein Tarrahimofrad
- Department of Animal Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Vasighe Sadat Mirbagheri
- Department of Industrial Environmental and Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), P.O.BOX: 14155-6343, 1497716316, Tehran, Iran
- Faculty of Fisheries and Environment Science, Gorgan University of Agriculture Science and Natural Resources, Gorgan, Iran
| | - Andrew J Easton
- School of Life Sciences, Gibbet Hill Campus, University of Warwick, Coventry, UK
| | - Gholamreza Ahmadian
- Department of Industrial Environmental and Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), P.O.BOX: 14155-6343, 1497716316, Tehran, Iran.
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Prospects of Microalgae for Biomaterial Production and Environmental Applications at Biorefineries. SUSTAINABILITY 2021. [DOI: 10.3390/su13063063] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Microalgae are increasingly viewed as renewable biological resources for a wide range of chemical compounds that can be used as or transformed into biomaterials through biorefining to foster the bioeconomy of the future. Besides the well-established biofuel potential of microalgae, key microalgal bioactive compounds, such as lipids, proteins, polysaccharides, pigments, vitamins, and polyphenols, possess a wide range of biomedical and nutritional attributes. Hence, microalgae can find value-added applications in the nutraceutical, pharmaceutical, cosmetics, personal care, animal food, and agricultural industries. Microalgal biomass can be processed into biomaterials for use in dyes, paints, bioplastics, biopolymers, and nanoparticles, or as hydrochar and biochar in solid fuel cells and soil amendments. Equally important is the use of microalgae in environmental applications, where they can serve in heavy metal bioremediation, wastewater treatment, and carbon sequestration thanks to their nutrient uptake and adsorptive properties. The present article provides a comprehensive review of microalgae specifically focused on biomaterial production and environmental applications in an effort to assess their current status and spur further deployment into the commercial arena.
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Microalgae acclimatization in industrial wastewater and its effect on growth and primary metabolite composition. ALGAL RES 2021. [DOI: 10.1016/j.algal.2020.102163] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Chromochloris zofingiensis (Chlorophyceae) Divides by Consecutive Multiple Fission Cell-Cycle under Batch and Continuous Cultivation. BIOLOGY 2021; 10:biology10020157. [PMID: 33669470 PMCID: PMC7920477 DOI: 10.3390/biology10020157] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 02/13/2021] [Indexed: 01/18/2023]
Abstract
Simple Summary Microalgae are plant-like micro-organisms naturally found in fresh and marine water environments, inhabiting a vast range of ecosystems. They capture light energy through photosynthesis and convert low energy inorganic compounds (carbon dioxide and water) into high energy complex organic compounds, such as carbohydrates and fats. Chromochloris zofingiensis is a unicellular microalga currently under intensive research, due to its ability to produce high value pharmaceutical and nutritional pigments. Understanding its growth characteristics is crucial for the establishment of an efficient commercial production of those pigments from this alga. Thus, we have developed a method to stain the nucleus of the alga which enabled us to follow the division pattern under commonly used cultivation methods. We found that C. zofingiensis cells conduct consecutive DNA synthesis and divisions of the nucleus to produce 8 or 16 nuclei before it divides into 8 or 16 daughter cells, respectively. Under high light illumination, the whole process lasts several days, through which cells grow during the light period and divide during the dark period. These findings can be assimilated for the development of the biotechnology process for high pigment productivity. Abstract Several green algae can divide by multiple fission and spontaneously synchronize their cell cycle with the available light regime. The yields that can be obtained from a microalgal culture are directly affected by cell cycle events. Chromochloris zofingiensis is considered as one of the most promising microalgae for biotechnological applications due to its fast growth and the flexible trophic capabilities. It is intensively investigated in the context of bio-commodities production (carotenoids, storage lipids); however, the pattern of cell-cycle events under common cultivation strategies was not yet characterized for C. zofingiensis. In this study, we have employed fluorescence microscopy to characterize the basic cell-cycle dynamics under batch and continuous modes of phototrophic C. zofingiensis cultivation. Staining with SYBR green—applied in DMSO solution—enabled, for the first time, the clear and simple visualization of polynuclear stages in this microalga. Accordingly, we concluded that C. zofingiensis divides by a consecutive pattern of multiple fission, whereby it spontaneously synchronizes growth and cell division according to the available illumination regime. In high-light continuous culture or low-light batch culture, C. zofingiensis cell-cycle was completed within several light-dark (L/D) cycles (14 h/10 h); however, cell divisions were synchronized with the dark periods only in the high-light continuous culture. In both modes of cultivation, daughter cell release was mainly facilitated by division of 8 and 16-polynuclear cells. The results of this study are of both fundamental and applied science significance and are also important for the development of an efficient nuclear transformation system for C. zofingiensis.
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Kejžar J, Jagodic Hudobivnik M, Nečemer M, Ogrinc N, Masten Rutar J, Poklar Ulrih N. Characterization of Algae Dietary Supplements Using Antioxidative Potential, Elemental Composition, and Stable Isotopes Approach. Front Nutr 2021; 7:618503. [PMID: 33614692 PMCID: PMC7892597 DOI: 10.3389/fnut.2020.618503] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 12/29/2020] [Indexed: 11/23/2022] Open
Abstract
Dietary supplements based on algae, known for their nutritional value and bioactive properties, are popular products among consumers today. While commercial algal products are regarded safe by numerous studies, information about the production and origin of such products is scarce. In addition, dietary supplements are not as strictly regulated as food and medicinal drugs. We characterized different algal products (kelps: Laminariales, Spirulina spp., Chlorella spp., and Aphanizomenon flos-aquae), obtained on Slovenian market, based on their elemental composition (X-ray fluorescence, inductively coupled plasma–mass spectrometry), antioxidative potential [DPPH (2,2-diphenyl-1-picrylhydrazyl) assay, total phenolic content], and stable isotope values [carbon (C), nitrogen (N), and sulfur (S); elemental analyzer isotope ratio mass spectrometry (EA-IRMS) method]. Antioxidative potential is consistent among products of the same type, with A. flos-aquae samples having 4.4 times higher antioxidative potential compared to Chlorella spp. and 2.7 times higher compared to Spirulina spp. Levels of toxic trace elements (arsenic, cadmium, mercury, and lead) are below the maximum allowed values and as such do not pose risk to consumers' health. Samples of Spirulina spp. have relatively high δ15N (7.4 ‰ ± 4.4‰) values, which indicate use of organic nitrogen sources in certain samples. Likewise, different elemental composition and isotopic ratios of stable elements (C, N, and S) for the samples with Spirulina spp. or Chlorella spp. are the consequence of using different nutrient sources and algae-growing techniques. Statistical analysis (principal component analysis) has confirmed that all tested A. flos-aquae samples originate from the same source, supposedly Klamath Lake (Oregon, USA). Hawaiian Spirulina pacifica can also be differentiated from all the other samples because of its characteristically high metal content (iron, manganese, zinc, cobalt, nickel, vanadium). Chlorella spp. and Spirulina spp. require further analyses with larger number of samples, as differentiation is not possible based on results of this study.
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Affiliation(s)
- Jan Kejžar
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | | | - Marijan Nečemer
- Department of Low and Medium Energy Physics, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Nives Ogrinc
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Jasmina Masten Rutar
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Nataša Poklar Ulrih
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
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Exploring the Chemical Space of Macro- and Micro-Algae Using Comparative Metabolomics. Microorganisms 2021; 9:microorganisms9020311. [PMID: 33546180 PMCID: PMC7913273 DOI: 10.3390/microorganisms9020311] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/26/2021] [Accepted: 01/30/2021] [Indexed: 02/08/2023] Open
Abstract
With more than 156,000 described species, eukaryotic algae (both macro- and micro-algae) are a rich source of biological diversity, however their chemical diversity remains largely unexplored. Specialised metabolites with promising biological activities have been widely reported for seaweeds, and more recently extracts from microalgae have exhibited activity in anticancer, antimicrobial, and antioxidant screens. However, we are still missing critical information on the distinction of chemical profiles between macro- and microalgae, as well as the chemical space these metabolites cover. This study has used an untargeted comparative metabolomics approach to explore the chemical diversity of seven seaweeds and 36 microalgal strains. A total of 1390 liquid chromatography-mass spectrometry (LC-MS) features were detected, representing small organic algal metabolites, with no overlap between the seaweeds and microalgae. An in-depth analysis of four Dunaliella tertiolecta strains shows that environmental factors may play a larger role than phylogeny when classifying their metabolomic profiles.
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Tzachor A, Rozen O, Khatib S, Jensen S, Avni D. Photosynthetically Controlled Spirulina, but Not Solar Spirulina, Inhibits TNF-α Secretion: Potential Implications for COVID-19-Related Cytokine Storm Therapy. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2021; 23:149-155. [PMID: 33566210 PMCID: PMC7874025 DOI: 10.1007/s10126-021-10020-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 05/30/2023]
Abstract
An array of infections, including the novel coronavirus (SARS-CoV-2), trigger macrophage activation syndrome (MAS) and subsequently hypercytokinemia, commonly referred to as a cytokine storm (CS). It is postulated that CS is mainly responsible for critical COVID-19 cases, including acute respiratory distress syndrome (ARDS). Recognizing the therapeutic potential of Spirulina blue-green algae (Arthrospira platensis), in this in vitro stimulation study, LPS-activated macrophages and monocytes were treated with aqueous extracts of Spirulina, cultivated in either natural or controlled light conditions. We report that an extract of photosynthetically controlled Spirulina (LED Spirulina), at a concentration of 0.1 µg/mL, decreases macrophage and monocyte-induced TNF-α secretion levels by over 70% and 40%, respectively. We propose prompt in vivo studies in animal models and human subjects to determine the putative effectiveness of a natural, algae-based treatment for viral CS and ARDS, and explore the potential of a novel anti-TNF-α therapy.
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Affiliation(s)
- Asaf Tzachor
- Centre for the Study of Existential Risk & Cambridge Global Food Security Research Center, University of Cambridge, Cambridge, UK
| | - Or Rozen
- Sphingolipids, Active Metabolites and Immune Modulation Laboratory, MIGAL - Galilee Research Institute, Kiryat Shemona, Israel
| | - Soliman Khatib
- Natural compounds and analytical chemistry Laboratory, MIGAL - Galilee Research Institute and Tel Hai college, Kiryat Shemona, Israel
| | - Sophie Jensen
- MATIS - Food and Biotech Research and Development, Reykjavík, Iceland
| | - Dorit Avni
- Sphingolipids, Active Metabolites and Immune Modulation Laboratory, MIGAL - Galilee Research Institute, Kiryat Shemona, Israel.
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Digestate as Sustainable Nutrient Source for Microalgae—Challenges and Prospects. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11031056] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The interest in microalgae products has been increasing, and therefore the cultivation industry is growing steadily. To reduce the environmental impact and production costs arising from nutrients, research needs to find alternatives to the currently used artificial nutrients. Microalgae cultivation in anaerobic effluents (more specifically, digestate) represents a promising strategy for increasing sustainability and obtaining valuable products. However, digestate must be processed prior to its use as nutrient source. Depending on its composition, different methods are suitable for removing solids (e.g., centrifugation) and adjusting nutrient concentrations and ratios (e.g., dilution, ammonia stripping). Moreover, the resulting cultivation medium must be light-permeable. Various studies show that growth rates comparable to those in artificial media can be achieved when proper digestate treatment is used. The necessary steps for obtaining a suitable cultivation medium also depend on the microalgae species to be cultivated. Concerning the application of the biomass, legal aspects and impurities originating from digestate must be considered. Furthermore, microalgae species and their application fields are essential criteria when selecting downstream processing methods (harvest, disintegration, dehydration, product purification). Microalgae grown on digestate can be used to produce various products (e.g., bioenergy, animal feed, bioplastics, and biofertilizers). This review gives insight into the origin and composition of digestate, processing options to meet requirements for microalgae cultivation and challenges regarding downstream processing and products.
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79
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Mojiri A, Baharlooeian M, Zahed MA. The Potential of Chaetoceros muelleri in Bioremediation of Antibiotics: Performance and Optimization. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18030977. [PMID: 33499398 PMCID: PMC7908223 DOI: 10.3390/ijerph18030977] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 01/19/2021] [Accepted: 01/19/2021] [Indexed: 12/03/2022]
Abstract
Antibiotics are frequently applied to treat bacterial infections in humans and animals. However, most consumed antibiotics are excreted into wastewater as metabolites or in their original form. Therefore, removal of antibiotics from aquatic environments is of high research interest. In this study, we investigated the removal of sulfamethoxazole (SMX) and ofloxacin (OFX) with Chaetoceros muelleri, a marine diatom. The optimization process was conducted using response surface methodology (RSM) with two independent parameters, i.e., the initial concentration of antibiotics and contact time. The optimum removal of SMX and OFX were 39.8% (0.19 mg L−1) and 42.5% (0.21 mg L−1) at the initial concentration (0.5 mg L−1) and contact time (6.3 days). Apart from that, the toxicity effect of antibiotics on the diatom was monitored in different SMX and OFX concentrations (0 to 50 mg L−1). The protein (mg L−1) and carotenoid (μg L−1) content increased when the antibiotic concentration increased up to 20 mg L−1, while cell viability was not significantly affected up to 20 mg L−1 of antibiotic concentration. Protein content, carotenoid, and cell viability decreased during high antibiotic concentrations (more than 20 to 30 mg L−1). This study revealed that the use of Chaetoceros muelleri is an appealing solution to remove certain antibiotics from wastewater.
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Affiliation(s)
- Amin Mojiri
- Department of Civil and Environmental Engineering, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashihiroshima 739-8527, Japan
- Correspondence:
| | - Maedeh Baharlooeian
- Department of Marine Biology, Faculty of Marine Science and Oceanography, Khorramshahr University of Marine Science and Technology, Khorramshahr 64199-34619, Iran;
| | - Mohammad Ali Zahed
- Faculty of Biological Sciences, Kharazmi University, Tehran 15719-14911, Iran;
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80
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Alshuniaber MA, Krishnamoorthy R, AlQhtani WH. Antimicrobial activity of polyphenolic compounds from Spirulina against food-borne bacterial pathogens. Saudi J Biol Sci 2021; 28:459-464. [PMID: 33424328 PMCID: PMC7783674 DOI: 10.1016/j.sjbs.2020.10.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 10/16/2020] [Accepted: 10/18/2020] [Indexed: 01/18/2023] Open
Abstract
Food-borne drug-resistant bacteria have adverse impacts on both food manufacturers and consumers. Disillusionment with the efficacy of current preservatives and antibiotics for controlling food-borne pathogens, especially drug-resistant bacteria, has led to a search for safer alternatives from natural sources. Spirulina have been recognized as a food supplement, natural colorant, and enriched source of bioactive secondary metabolites. The main objectives of this study were to isolate polyphenolic compounds from Spirulina and analyze their antibacterial potential against drug-resistant food-borne bacterial pathogens. We found that fraction B of methanol extract contained a high quantity of polyphenols exhibiting broad spectrum antimicrobial effects against drug-resistant food-borne bacterial pathogens. Potential secondary metabolites, such as benzophenone, dihydro-methyl-phenylacridine, carbanilic acid, dinitrobenzoate, propanediamine, isoquinoline, piperidin, oxazolidin, and pyrrolidine, were identified by gas chromatography and mass spectrophotometry (GCMS). These metabolites are active against both gram-positive and gram-negative pathogens. Our work suggests that phenolic compounds from Spirulina provide a natural and sustainable source of food preservatives for future use.
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Affiliation(s)
- Mohammad A Alshuniaber
- Food Sciences and Nutrition Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Rajapandiyan Krishnamoorthy
- Food Sciences and Nutrition Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Wahida H AlQhtani
- Food Sciences and Nutrition Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
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81
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Vieira MV, Pastrana LM, Fuciños P. Microalgae Encapsulation Systems for Food, Pharmaceutical and Cosmetics Applications. Mar Drugs 2020; 18:E644. [PMID: 33333921 PMCID: PMC7765346 DOI: 10.3390/md18120644] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/05/2020] [Accepted: 12/08/2020] [Indexed: 12/13/2022] Open
Abstract
Microalgae are microorganisms with a singular biochemical composition, including several biologically active compounds with proven pharmacological activities, such as anticancer, antioxidant and anti-inflammatory activities, among others. These properties make microalgae an interesting natural resource to be used as a functional ingredient, as well as in the prevention and treatment of diseases, or cosmetic formulations. Nevertheless, natural bioactives often possess inherent chemical instability and/or poor solubility, which are usually associated with low bioavailability. As such, their industrial potential as a health-promoting substance might be severely compromised. In this context, encapsulation systems are considered as a promising and emerging strategy to overcome these shortcomings due to the presence of a surrounding protective layer. Diverse systems have already been reported in the literature for natural bioactives, where some of them have been successfully applied to microalgae compounds. Therefore, this review focuses on exploring encapsulation systems for microalgae biomass, their extracts, or purified bioactives for food, pharmaceutical, and cosmetic purposes. Moreover, this work also covers the most common encapsulation techniques and types of coating materials used, along with the main findings regarding the beneficial effects of these systems.
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Affiliation(s)
| | | | - Pablo Fuciños
- Food Processing and Nutrition Group, International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal; (M.V.V.); (L.M.P.)
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82
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Stirk WA, van Staden J. Potential of phytohormones as a strategy to improve microalgae productivity for biotechnological applications. Biotechnol Adv 2020; 44:107612. [DOI: 10.1016/j.biotechadv.2020.107612] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/27/2020] [Accepted: 08/13/2020] [Indexed: 12/26/2022]
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83
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Hussein HA, Maulidiani M, Abdullah MA. Microalgal metabolites as anti-cancer/anti-oxidant agents reduce cytotoxicity of elevated silver nanoparticle levels against non-cancerous vero cells. Heliyon 2020; 6:e05263. [PMID: 33102866 PMCID: PMC7578694 DOI: 10.1016/j.heliyon.2020.e05263] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/06/2020] [Accepted: 10/12/2020] [Indexed: 12/31/2022] Open
Abstract
Heavy metal pollution has become a major concern globally as it contaminates eco-system, water networks and as finely suspended particles in air. In this study, the effects of elevated silver nanoparticle (AgNPs) levels as a model system of heavy metals, in the presence of microalgal crude extracts (MCEs) at different ratios, were evaluated against the non-cancerous Vero cells, and the cancerous MCF-7 and 4T1 cells. The MCEs were developed from water (W) and ethanol (ETH) as green solvents. The AgNPs-MCEs-W at the 4:1 and 5:1 ratios (v/v) after 48 and 72 h treatment, respectively, showed the IC50 values of 83.17-95.49 and 70.79-91.20 μg/ml on Vero cells, 13.18-28.18 and 12.58-25.7 μg/ml on MCF-7; and 16.21-33.88 and 14.79-26.91 μg/ml on 4T1 cells. In comparison, the AgNPs-MCEs-ETH formulation achieved the IC50 values of 56.23-89.12 and 63.09-91.2 μg/ml on Vero cells, 10.47-19.95 and 13.48-26.61 μg/ml on MCF-7; 14.12-50.11 and 15.13-58.88 μg/ml on 4T1 cells, respectively. After 48 and 72 h treatment, the AgNPs-MCE-CHL at the 4:1 and 5:1 ratios exhibited the IC50 of 51.28-75.85 and 48.97-69.18 μg/ml on Vero cells, and higher cytotoxicity at 10.47-16.98 and 6.19-14.45 μg/ml against MCF-7 cells, and 15.84-31.62 and 12.58-24.54 μg/ml on 4T1 cells, respectively. The AgNPs-MCEs-W and ETH resulted in low apoptotic events in the Vero cells after 24 h, but very high early and late apoptotic events in the cancerous cells. The Liquid Chromatography-Mass Spectrometry-Electrospray Ionization (LC-MS-ESI) metabolite profiling of the MCEs exhibited 64 metabolites in negative ion and 56 metabolites in positive ion mode, belonging to different classes. The microalgal metabolites, principally the anti-oxidative components, could have reduced the toxicity of the AgNPs against Vero cells, whilst retaining the cytotoxicity against the cancerous cells.
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Affiliation(s)
- Hanaa Ali Hussein
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
- College of Dentistry, University of Basrah, Basrah, Iraq
| | - M. Maulidiani
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Mohd Azmuddin Abdullah
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
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84
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Chua ET, Dal'Molin C, Thomas-Hall S, Netzel ME, Netzel G, Schenk PM. Cold and dark treatments induce omega-3 fatty acid and carotenoid production in Nannochloropsis oceanica. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102059] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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85
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Abdelnour S, El-Saadony M, Saghir S, Abd El-Hack M, Al-shargi O, Al-Gabri N, Salama A. Mitigating negative impacts of heat stress in growing rabbits via dietary prodigiosin supplementation. Livest Sci 2020. [DOI: 10.1016/j.livsci.2020.104220] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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86
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Umerzakova M, Donenov B, Kainarbaeva Z, Kartay A, Sarieva R. Pilot Production of Spirulina Biomass and Obtaining
of Novel Biodegradable Surfactants. EURASIAN CHEMICO-TECHNOLOGICAL JOURNAL 2020. [DOI: 10.18321/ectj973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The research results describe the pilot production of microalgae biomass – Spirulina, especially in wintertime, using the geothermal energy of water to save the costs for heating of the pool photobioreactor and biomass drying box. For carrying out of the process a simplified nutrient medium consisting of geothermal water and salts: sodium bicarbonate, potassium nitrate, diammonium phosphate, and urea was developed. The conditions for the Spirulina biomass cultivation in wintertime were optimized. The technical and economic feasibility and conditions for large-scale production of Spirulina in Kazakhstan for commercial purposes are justified. It has been shown that the Spirulina biomass may serve as a feedstock for the production of biodegradable surfactants.
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87
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Tan JS, Lee SY, Chew KW, Lam MK, Lim JW, Ho SH, Show PL. A review on microalgae cultivation and harvesting, and their biomass extraction processing using ionic liquids. Bioengineered 2020; 11:116-129. [PMID: 31909681 PMCID: PMC6999644 DOI: 10.1080/21655979.2020.1711626] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
The richness of high-value bio-compounds derived from microalgae has made microalgae a promising and sustainable source of useful product. The present work starts with a review on the usage of open pond and photobioreactor in culturing various microalgae strains, followed by an in-depth evaluation on the common harvesting techniques used to collect microalgae from culture medium. The harvesting methods discussed include filtration, centrifugation, flocculation, and flotation. Additionally, the advanced extraction technologies using ionic liquids as extractive solvents applied to extract high-value bio-compounds such as lipids, carbohydrates, proteins, and other bioactive compounds from microalgae biomass are summarized and discussed. However, more work needs to be done to fully utilize the potential of microalgae biomass for the application in large-scale production of biofuels, food additives, and nutritive supplements.
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Affiliation(s)
- Jia Sen Tan
- Department of Biotechnology, Faculty of Applied Science, UCSI University, Kuala Lumpur, Malaysia
| | - Sze Ying Lee
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Sungai Long Campus, Kajang, Malaysia
| | - Kit Wayne Chew
- School of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Selangor, Malaysia
| | - Man Kee Lam
- Chemical Engineering Department, Universiti Teknologi PETRONAS, Perak, Malaysia.,Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia
| | - Jun Wei Lim
- Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia.,Fundamental and Applied Sciences Department, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia
| | - Shih-Hsin Ho
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Malaysia
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88
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Haske-Cornelius O, Vu T, Schmiedhofer C, Vielnascher R, Dielacher M, Sachs V, Grasmug M, Kromus S, Guebitz G. Cultivation of heterotrophic algae on enzymatically hydrolyzed municipal food waste. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101993] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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89
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Coulombier N, Nicolau E, Le Déan L, Barthelemy V, Schreiber N, Brun P, Lebouvier N, Jauffrais T. Effects of Nitrogen Availability on the Antioxidant Activity and Carotenoid Content of the Microalgae Nephroselmis sp. Mar Drugs 2020; 18:E453. [PMID: 32872415 PMCID: PMC7551860 DOI: 10.3390/md18090453] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 02/07/2023] Open
Abstract
Nephroselmis sp. was previously identified as a species of interest for its antioxidant properties owing to its high carotenoid content. In addition, nitrogen availability can impact biomass and specific metabolites' production of microalgae. To optimize parameters of antioxidant production, Nephroselmis sp. was cultivated in batch and continuous culture conditions in stirred closed photobioreactors under different nitrogen conditions (N-repletion, N-limitation, and N-starvation). The aim was to determine the influence of nitrogen availability on the peroxyl radical scavenging activity (oxygen radical absorbance capacity (ORAC) assay) and carotenoid content of Nephroselmis sp. Pigment analysis revealed a specific and unusual photosynthetic system with siphonaxanthin-type light harvesting complexes found in primitive green algae, but also high lutein content and xanthophyll cycle pigments (i.e., violaxanthin, antheraxanthin, and zeaxanthin), as observed in most advanced chlorophytes. The results indicated that N-replete conditions enhance carotenoid biosynthesis, which would correspond to a higher antioxidant capacity measured in Nephroselmis sp. Indeed, peroxyl radical scavenging activity and total carotenoids were higher under N-replete conditions and decreased sharply under N-limitation or starvation conditions. Considering individual carotenoids, siphonaxanthin, neoxanthin, xanthophyll cycle pigments, and lycopene followed the same trend as total carotenoids, while β-carotene and lutein stayed stable regardless of the nitrogen availability. Carotenoid productivities were also higher under N-replete treatment. The peroxyl radical scavenging activity measured with ORAC assay (63.6 to 154.9 µmol TE g-1 DW) and the lutein content (5.22 to 7.97 mg g-1 DW) were within the upper ranges of values reported previously for other microalgae. Furthermore, contents of siphonaxanthin ere 6 to 20% higher than in previous identified sources (siphonous green algae). These results highlight the potential of Nephroselmis sp. as a source of natural antioxidant and as a pigment of interest.
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Affiliation(s)
| | - Elodie Nicolau
- Ifremer, RBE/BRM/LPBA, Rue de l’île d’Yeu, 44311 Nantes, France; (E.N.); (N.S.)
| | - Loïc Le Déan
- Ifremer, IRD, Univ Nouvelle-Calédonie, Univ La Réunion, UMR 9220 ENTROPIE, BP 32078, 98800 Nouméa, New Caledonia; (L.L.D.); (V.B.); (P.B.); (T.J.)
| | - Vanille Barthelemy
- Ifremer, IRD, Univ Nouvelle-Calédonie, Univ La Réunion, UMR 9220 ENTROPIE, BP 32078, 98800 Nouméa, New Caledonia; (L.L.D.); (V.B.); (P.B.); (T.J.)
| | - Nathalie Schreiber
- Ifremer, RBE/BRM/LPBA, Rue de l’île d’Yeu, 44311 Nantes, France; (E.N.); (N.S.)
| | - Pierre Brun
- Ifremer, IRD, Univ Nouvelle-Calédonie, Univ La Réunion, UMR 9220 ENTROPIE, BP 32078, 98800 Nouméa, New Caledonia; (L.L.D.); (V.B.); (P.B.); (T.J.)
| | - Nicolas Lebouvier
- ISEA, EA7484, Université de la Nouvelle Calédonie, Campus de Nouville, 98851 Nouméa, New Caledonia;
| | - Thierry Jauffrais
- Ifremer, IRD, Univ Nouvelle-Calédonie, Univ La Réunion, UMR 9220 ENTROPIE, BP 32078, 98800 Nouméa, New Caledonia; (L.L.D.); (V.B.); (P.B.); (T.J.)
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90
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Enhancing Sustainability by Improving Plant Salt Tolerance through Macro- and Micro-Algal Biostimulants. BIOLOGY 2020; 9:biology9090253. [PMID: 32872247 PMCID: PMC7564450 DOI: 10.3390/biology9090253] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/23/2020] [Accepted: 08/26/2020] [Indexed: 12/24/2022]
Abstract
Algal biomass, extracts, or derivatives have long been considered a valuable material to bring benefits to humans and cultivated plants. In the last decades, it became evident that algal formulations can induce multiple effects on crops (including an increase in biomass, yield, and quality), and that algal extracts contain a series of bioactive compounds and signaling molecules, in addition to mineral and organic nutrients. The need to reduce the non-renewable chemical input in agriculture has recently prompted an increase in the use of algal extracts as a plant biostimulant, also because of their ability to promote plant growth in suboptimal conditions such as saline environments is beneficial. In this article, we discuss some research areas that are critical for the implementation in agriculture of macro- and microalgae extracts as plant biostimulants. Specifically, we provide an overview of current knowledge and achievements about extraction methods, compositions, and action mechanisms of algal extracts, focusing on salt-stress tolerance. We also outline current limitations and possible research avenues. We conclude that the comparison and the integration of knowledge on the molecular and physiological response of plants to salt and to algal extracts should also guide the extraction procedures and application methods. The effects of algal biostimulants have been mainly investigated from an applied perspective, and the exploitation of different scientific disciplines is still much needed for the development of new sustainable strategies to increase crop tolerance to salt stress.
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91
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Xu L, Wang YY, Huang J, Chen CY, Wang ZX, Xie H. Silver nanoparticles: Synthesis, medical applications and biosafety. Theranostics 2020; 10:8996-9031. [PMID: 32802176 PMCID: PMC7415816 DOI: 10.7150/thno.45413] [Citation(s) in RCA: 363] [Impact Index Per Article: 90.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/26/2020] [Indexed: 12/17/2022] Open
Abstract
Silver nanoparticles (AgNPs) have been one of the most attractive nanomaterials in biomedicine due to their unique physicochemical properties. In this paper, we review the state-of-the-art advances of AgNPs in the synthesis methods, medical applications and biosafety of AgNPs. The synthesis methods of AgNPs include physical, chemical and biological routes. AgNPs are mainly used for antimicrobial and anticancer therapy, and also applied in the promotion of wound repair and bone healing, or as the vaccine adjuvant, anti-diabetic agent and biosensors. This review also summarizes the biological action mechanisms of AgNPs, which mainly involve the release of silver ions (Ag+), generation of reactive oxygen species (ROS), destruction of membrane structure. Despite these therapeutic benefits, their biological safety problems such as potential toxicity on cells, tissue, and organs should be paid enough attention. Besides, we briefly introduce a new type of Ag particles smaller than AgNPs, silver Ångstrom (Å, 1 Å = 0.1 nm) particles (AgÅPs), which exhibit better biological activity and lower toxicity compared with AgNPs. Finally, we conclude the current challenges and point out the future development direction of AgNPs.
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Affiliation(s)
- Li Xu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Xiangya Hospital of Central South University-Amcan Medical Biotechnology Co. Ltd. Joint Research Center, Changsha, Hunan 410008, China
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Yi-Yi Wang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Jie Huang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Xiangya Hospital of Central South University-Amcan Medical Biotechnology Co. Ltd. Joint Research Center, Changsha, Hunan 410008, China
| | - Chun-Yuan Chen
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Xiangya Hospital of Central South University-Amcan Medical Biotechnology Co. Ltd. Joint Research Center, Changsha, Hunan 410008, China
| | - Zhen-Xing Wang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Xiangya Hospital of Central South University-Amcan Medical Biotechnology Co. Ltd. Joint Research Center, Changsha, Hunan 410008, China
| | - Hui Xie
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Xiangya Hospital of Central South University-Amcan Medical Biotechnology Co. Ltd. Joint Research Center, Changsha, Hunan 410008, China
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Hunan Key Laboratory of Organ Injury, Aging and Regenerative Medicine, Changsha, Hunan 410008, China
- Hunan Key Laboratory of Bone Joint Degeneration and Injury, Changsha, Hunan 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
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92
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Mahmoud EA, El-Sayed BM, Mahsoub YH, El-Murr AEI, Neamat-Allah ANF. Effect of Chlorella vulgaris enriched diet on growth performance, hemato-immunological responses, antioxidant and transcriptomics profile disorders caused by deltamethrin toxicity in Nile tilapia (Oreochromis niloticus). FISH & SHELLFISH IMMUNOLOGY 2020; 102:422-429. [PMID: 32376299 DOI: 10.1016/j.fsi.2020.04.061] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 04/22/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
The toxic effect of deltamethrin (DM) was documented in aquaculture. There is no obtainable data on the effect of Chlorella vulgaris against DM toxicity. The current study focused on the effect of dietary supplementation with C. vulgaris (CV) on growth performance, innate immune response, antioxidant activities, and transcriptomics disorders induced by sub-lethal dose of DM in Oreochromis niloticus. A total number of 216 O. niloticus divided into four groups with tri-replicates. The 1st control group (CT) fed a basal diet, the second group fed diet enriched with 5% CV. The third group was exposed to DM (15 μg/L), where the last group fed CV and simultaneously exposed to DM as previous-mentioned. The procedure of CV feeding and DM exposure were continued for two months. Exposures to DM revealed in stunting of the growth parameters and lessening of survival ratio of tilapias with a significant decline of the erythrogram (macrocytic hypochromic anemic picture), and leucocytes immune cells and related parameters (immunoglobulin M, lysozyme) and sever shifting in the antioxidant indicators. Sever raise was monitored in hepatic and kidney markers. Also, genes expression related to immune and antioxidant parameters were severely impacted. Where tilapias received CV showed a significant increase in the growth and immune parameters besides to an improvement of hematological, antioxidant values and their related genes expressions. The fourth group that received CV simultaneous with DM exposure showed a soothing of the previous indicators and markers toward the values of tilapias fed on basal diet (CT). In turn, CV supplementation may be presented a protective effect alongside DM toxicity in O. niloticus appeared through soothing of the immune, antioxidant and related genes expressions in addition to its hepato-renal protective effects. Therefore, the current study recommended that an incorporating of 5% CV for tilapias diet could improve their growth performance, immunity, antioxidant and transcriptomics disorders induced by deltamethrin.
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Affiliation(s)
- Essam A Mahmoud
- Clinical Pathology Department, Faculty of Veterinary Medicine, Zagazig University, Atagneed Street, 44519, Zagazig, Sharkia, Egypt
| | - Badawi M El-Sayed
- Nutrition and Clinical Nutrition Department, Faculty of Veterinary Medicine, Zagazig University, Egypt.
| | - Yasser H Mahsoub
- Fish Diseases and Management Department, Faculty of Veterinary Medicine, Zagazig University, Egypt
| | - Abd Elhakeem I El-Murr
- Fish Diseases and Management Department, Faculty of Veterinary Medicine, Zagazig University, Egypt
| | - Ahmed N F Neamat-Allah
- Clinical Pathology Department, Faculty of Veterinary Medicine, Zagazig University, Atagneed Street, 44519, Zagazig, Sharkia, Egypt
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93
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Tabarzad M, Atabaki V, Hosseinabadi T. Anti-inflammatory Activity of Bioactive Compounds from Microalgae and Cyanobacteria by Focusing on the Mechanisms of Action. Mol Biol Rep 2020; 47:6193-6205. [PMID: 32557174 DOI: 10.1007/s11033-020-05562-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 05/27/2020] [Indexed: 12/13/2022]
Abstract
Microalgae and cyanobacteria are the potentially valuable source of bioactive compounds applied in the various industries and human usage in different fields of pharmaceutical, nutraceutical, and cosmetic disciplines. One of the interesting aspects is their application as the anti-inflammatory agents for treatment of inflammation related mal-conditions. Natural compounds are of great importance in the treatment of inflammations to reduce the reaction of immune system against pathogens, toxic compounds and damaged cells. A wide range of different metabolites with various chemical structures, including small molecules and peptides and proteins, polysaccharides, fatty acids and their derivatives have been found in microalgae and cyanobacteria which have anti-inflammatory activity. In this review, we summarized different metabolites with anti-inflammatory activity that were extracted from these microorganisms and their mechanisms. The bioactive compounds from microalgae and cyanobacteria have exhibited anti-inflammatory activity through different mechanisms acting intra- or extra- cellularly. So, they could be considered as promising anti-inflammatory agents in treatment of related diseases.
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Affiliation(s)
- Maryam Tabarzad
- Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahideh Atabaki
- Department of Pharmacognosy and Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tahereh Hosseinabadi
- Department of Pharmacognosy and Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Characterization of Endogenous Auxins and Gibberellins Produced by Chlorella sorokiniana TH01 under Phototrophic and Mixtrophic Cultivation Modes toward Applications in Microalgal Biorefinery and Crop Research. J CHEM-NY 2020. [DOI: 10.1155/2020/4910621] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Microalgae have been reported to produce endogenous phytohormones including auxins, gibberellins, cytokinins, brassinosteroids, and abscisic acid. Methanol residual released from microalgal lipid extraction usually contains a variety of bioactive compounds including the phytohormones; however, they are poorly characterized and used for other applications. This study aimed at investigating auxin, gibberellin, and cytokinin production of C. sorokiniana TH01 under phototrophic and mixtrophic cultivations. Moreover, endogenous auxins, gibberellins, and cytokinins in methanol residual obtained from the algal lipid extraction were characterized using HPLC-ESI-MS/MS toward application for crop and biorefinery research. Data showed that endogenous indole-3-acetic acid (IAA), 3-indolepropionic acid (IPA), gibberellin A4 (GA4), and gibberellin A7 (GA7) were detected in C. sorokiniana TH01 biomass. Under the phototrophic mode, total auxin and GA levels were reduced to 0.98 and 9.65 μg/g DW under salt stress (20 g NaCl/L) from 3.59 to 24.71 μg/g DW, respectively, measured for the control. Similarly, total auxins and GAs were also decreased to 0.56 and 2.86 μg/g DW, respectively, under mixtrophic growth with 6 g glucose/L. Total auxins and GAs determined in the water algal extract were 1062.7 and 2000.1 μg/L, respectively. Treatment with higher 40% (v/v) of the algal extract triggered earlier seed germination of rice and tomato plants in 2 and 1 days, respectively. Our new findings in capability of C. sorokiniana TH01 in endogenous phytohormone production contain fundamental merits for further optimization of the algal production (i.e., cultivation modes, conditions, lipids, biomass productivity, and hormone levels) to be used for biorefinery.
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95
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Rumin J, Nicolau E, Gonçalves de Oliveira Junior R, Fuentes-Grünewald C, Picot L. Analysis of Scientific Research Driving Microalgae Market Opportunities in Europe. Mar Drugs 2020; 18:E264. [PMID: 32443631 PMCID: PMC7281102 DOI: 10.3390/md18050264] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/12/2020] [Accepted: 05/14/2020] [Indexed: 12/19/2022] Open
Abstract
A bibliographic database of scientific papers published by authors affiliated to research institutions worldwide, especially focused in Europe and in the European Atlantic Area, and containing the keywords "microalga(e)" or "phytoplankton" was built. A corpus of 79,020 publications was obtained and analyzed using the Orbit Intellixir software to characterize the research trends related to microalgae markets, markets opportunities and technologies that could have important impacts on markets evolution. Six major markets opportunities, the production of biofuels, bioplastics, biofertilizers, nutraceuticals, pharmaceuticals and cosmetics, and two fast-evolving technological domains driving markets evolution, microalgae harvesting and extraction technologies and production of genetically modified (GM-)microalgae, were highlighted. We here present an advanced analysis of these research domains to give an updated overview of scientific concepts driving microalgae markets.
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Affiliation(s)
- Judith Rumin
- La Rochelle Université, UMRi CNRS 7266 LIENSs, Avenue Crépeau, 17042 La Rochelle, France; (J.R.); (R.G.d.O.J.)
| | - Elodie Nicolau
- IFREMER, Laboratoire BRM/PBA, Rue de l’Ile d’Yeu, 44311 Nantes, France;
| | | | | | - Laurent Picot
- La Rochelle Université, UMRi CNRS 7266 LIENSs, Avenue Crépeau, 17042 La Rochelle, France; (J.R.); (R.G.d.O.J.)
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Cantú-Bernal S, Domínguez-Gámez M, Medina-Peraza I, Aros-Uzarraga E, Ontiveros N, Flores-Mendoza L, Gomez-Flores R, Tamez-Guerra P, González-Ochoa G. Enhanced Viability and Anti-rotavirus Effect of Bifidobacterium longum and Lactobacillus plantarum in Combination With Chlorella sorokiniana in a Dairy Product. Front Microbiol 2020; 11:875. [PMID: 32477300 PMCID: PMC7236592 DOI: 10.3389/fmicb.2020.00875] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/15/2020] [Indexed: 01/01/2023] Open
Abstract
Microalgae and probiotics such as Bifidobacterium and Lactobacillus genera are associated with human beneficial effects. The aim of this study was to evaluate the activity of Chlorella sorokiniana on Bifidobacterium longum and Lactobacillus plantarum viability in a dairy product (flan) and its microbial effect against rotavirus, which is one of the major diarrhea-causing pathogens worldwide. Microalge were isolated from a Mexican river and characterized by molecular tools. Their prebiotic activity was evaluated by determining Bifidobacterium longum and Lactobacillus plantarum shelf-life after incorporation in the food matrix. In addition, HT-29 cells were infected with rotavirus Wa and treated with 1 × 109 CFU/mL L. plantarum and B. longum metabolites alone or in combination with 1 × 109 cells/mL Chlorella sorokiniana; viral titers in probiotics- and/or microalgae-treated cells were evaluated for antiviral activity. Results indicated that C. sorokiniana not only significantly (p < 0.05) improved L. plantarum and B. longum viability in flan, but also increased their antiviral activity; potent anti-rotavirus effect of C. sorokiniana alone was observed. Although more studies are needed, results suggest that incorporation of this microalga into a dairy product confers enhanced viability and antiviral effects, which indicates that C. sorokiniana might be used as an ingredient to design products with additional health benefits.
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Affiliation(s)
- Servando Cantú-Bernal
- Laboratorio de Inmunología y Virología, Departamento de Microbiología e Inmunología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| | - Maribel Domínguez-Gámez
- Laboratorio de Inmunología y Virología, Departamento de Microbiología e Inmunología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| | - Ivana Medina-Peraza
- Laboratorio de Microbiología e Inmunología, Departamento de Ciencias Químico Biológicas y Agropecuarias, Universidad de Sonora, Sonora, Mexico
| | - Elizama Aros-Uzarraga
- Laboratorio de Microbiología e Inmunología, Departamento de Ciencias Químico Biológicas y Agropecuarias, Universidad de Sonora, Sonora, Mexico
| | - Noé Ontiveros
- Laboratorio de Microbiología e Inmunología, Departamento de Ciencias Químico Biológicas y Agropecuarias, Universidad de Sonora, Sonora, Mexico
| | - Lilian Flores-Mendoza
- Laboratorio de Microbiología e Inmunología, Departamento de Ciencias Químico Biológicas y Agropecuarias, Universidad de Sonora, Sonora, Mexico
| | - Ricardo Gomez-Flores
- Laboratorio de Inmunología y Virología, Departamento de Microbiología e Inmunología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| | - Patricia Tamez-Guerra
- Laboratorio de Inmunología y Virología, Departamento de Microbiología e Inmunología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| | - Guadalupe González-Ochoa
- Laboratorio de Microbiología e Inmunología, Departamento de Ciencias Químico Biológicas y Agropecuarias, Universidad de Sonora, Sonora, Mexico
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Veas R, Rojas-Pirela M, Castillo C, Olea-Azar C, Moncada M, Ulloa P, Rojas V, Kemmerling U. Microalgae extracts: Potential anti-Trypanosoma cruzi agents? Biomed Pharmacother 2020; 127:110178. [PMID: 32371317 DOI: 10.1016/j.biopha.2020.110178] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/08/2020] [Accepted: 04/17/2020] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Chagas disease, caused by the protozoan parasiteTrypanosoma cruzi, has no effective treatment available. On the other hand, microalgae are aquatic organisms that constitute an interesting reservoir of biologically active metabolites. Moreover, some species of green and red algae present anti-protozoan activity. Our aim was to study the antiparasitic effects of aqueous, methanolic and ethanolic extracts from different microalgae. METHODS AND RESULTS Our results show that the methanolic extracts of S. obliquus and T. suecica as well as the ethanolic extracts of C. reinhardtii and T. suecica present trypanocidal activity on the infective extracellular trypomastigotes and intracellular amastigotes. In addition, the ethanolic extract of C. reinhardtii potentiates the activity of the conventional antichagasic drug nifurtimox. In order to identify some potential compounds with trypanocidal activity, we performed a phytochemical screening analyzing the presence of phenolic compounds, pigments and terpenoids. CONCLUSION The different microalgae extracts, particularly the ethanolic extract ofC. reinhardtii, are promising potential candidates for the development of future natural antichagasic drugs.
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Affiliation(s)
- Rhonda Veas
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile; Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago de Chile 8380453, Chile
| | - Maura Rojas-Pirela
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile
| | - Christian Castillo
- Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago de Chile 8380453, Chile
| | - Claudio Olea-Azar
- Departamento de Química Analítica e Inorgánica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago de Chile 8380494, Chile
| | - Mauricio Moncada
- Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago de Chile 8380453, Chile; Departamento de Química Analítica e Inorgánica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago de Chile 8380494, Chile
| | - Pablo Ulloa
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile; Instituto de Investigaciones Agropecuarias, INIA-La Platina, Santiago de Chile 8831314, Chile
| | - Verónica Rojas
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile.
| | - Ulrike Kemmerling
- Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago de Chile 8380453, Chile.
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Tang DYY, Khoo KS, Chew KW, Tao Y, Ho SH, Show PL. Potential utilization of bioproducts from microalgae for the quality enhancement of natural products. BIORESOURCE TECHNOLOGY 2020; 304:122997. [PMID: 32094007 DOI: 10.1016/j.biortech.2020.122997] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 02/04/2020] [Accepted: 02/08/2020] [Indexed: 05/11/2023]
Abstract
Microalgae are autotroph organisms that utilise light energy to synthesize various high-value bioactive compounds such as polysaccharides, proteins and lipids. Due to its fast growth rate and capability to survive in harsh environment, microalgae nowadays are applied in various industrial areas. The process of obtaining microalgae-based biomolecules starts with the selection of suitable microalgae strain, cultivation, followed by downstream processing of the biomass (i.e., pre-treatment, harvesting, extraction and purification). The end products of the processes are biofuels and other valuable bioproducts. Nevertheless, low production yield and high-cost downstream processes are the emerging bottlenecks which need to be addressed in the upscaling of extracted compounds from microalgae biomass. To conclude, tremendous efforts are required to overcome these challenges to revolutionize microalgae into a novel and green factory of different bioactive compounds for industrial necessities to satisfy and fulfil global demands.
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Affiliation(s)
- Doris Ying Ying Tang
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih 43500, Selangor Darul Ehsan, Malaysia
| | - Kuan Shiong Khoo
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih 43500, Selangor Darul Ehsan, Malaysia
| | - Kit Wayne Chew
- School of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih 43500, Selangor Darul Ehsan, Malaysia
| | - Yang Tao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Shih-Hsin Ho
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih 43500, Selangor Darul Ehsan, Malaysia.
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Ganley JG, Derbyshire ER. Linking Genes to Molecules in Eukaryotic Sources: An Endeavor to Expand Our Biosynthetic Repertoire. Molecules 2020; 25:E625. [PMID: 32023950 PMCID: PMC7036892 DOI: 10.3390/molecules25030625] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 01/23/2020] [Accepted: 01/30/2020] [Indexed: 02/06/2023] Open
Abstract
The discovery of natural products continues to interest chemists and biologists for their utility in medicine as well as facilitating our understanding of signaling, pathogenesis, and evolution. Despite an attenuation in the discovery rate of new molecules, the current genomics and transcriptomics revolution has illuminated the untapped biosynthetic potential of many diverse organisms. Today, natural product discovery can be driven by biosynthetic gene cluster (BGC) analysis, which is capable of predicting enzymes that catalyze novel reactions and organisms that synthesize new chemical structures. This approach has been particularly effective in mining bacterial and fungal genomes where it has facilitated the discovery of new molecules, increased the understanding of metabolite assembly, and in some instances uncovered enzymes with intriguing synthetic utility. While relatively less is known about the biosynthetic potential of non-fungal eukaryotes, there is compelling evidence to suggest many encode biosynthetic enzymes that produce molecules with unique bioactivities. In this review, we highlight how the advances in genomics and transcriptomics have aided natural product discovery in sources from eukaryotic lineages. We summarize work that has successfully connected genes to previously identified molecules and how advancing these techniques can lead to genetics-guided discovery of novel chemical structures and reactions distributed throughout the tree of life. Ultimately, we discuss the advantage of increasing the known biosynthetic space to ease access to complex natural and non-natural small molecules.
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Affiliation(s)
- Jack G Ganley
- Department of Chemistry, Duke University, 124 Science Drive, Durham, NC 27708-0346, USA
| | - Emily R Derbyshire
- Department of Chemistry, Duke University, 124 Science Drive, Durham, NC 27708-0346, USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, 213 Research Drive, Durham, NC 27710, USA
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