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Edible Microalgae and Their Bioactive Compounds in the Prevention and Treatment of Metabolic Alterations

1
Physiology Section, Department of Cell Biology, Physiology and Immunology, Faculty of Biology, University of Barcelona, 08007 Barcelona, Spain
2
Department of Biological Chemistry, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Anna Gramza-Michałowska
Nutrients 2021, 13(2), 563; https://doi.org/10.3390/nu13020563
Received: 28 December 2020 / Revised: 1 February 2021 / Accepted: 3 February 2021 / Published: 9 February 2021
(This article belongs to the Section Nutrition and Metabolism)
Marine and freshwater algae and their products are in growing demand worldwide because of their nutritional and functional properties. Microalgae (unicellular algae) will constitute one of the major foods of the future for nutritional and environmental reasons. They are sources of high-quality protein and bioactive molecules with potential application in the modern epidemics of obesity and diabetes. They may also contribute decisively to sustainability through carbon dioxide fixation and minimization of agricultural land use. This paper reviews current knowledge of the effects of consuming edible microalgae on the metabolic alterations known as metabolic syndrome (MS). These microalgae include Chlorella, Spirulina (Arthrospira) and Tetraselmis as well as Isochrysis and Nannochloropsis as candidates for human consumption. Chlorella biomass has shown antioxidant, antidiabetic, immunomodulatory, antihypertensive, and antihyperlipidemic effects in humans and other mammals. The components of microalgae reviewed suggest that they may be effective against MS at two levels: in the early stages, to work against the development of insulin resistance (IR), and later, when pancreatic -cell function is already compromised. The active components at both stages are antioxidant scavengers and anti-inflammatory lipid mediators such as carotenoids and -3 PUFAs (eicosapentaenoic acid/docosahexaenoic acid; EPA/DHA), prebiotic polysaccharides, phenolics, antihypertensive peptides, several pigments such as phycobilins and phycocyanin, and some vitamins, such as folate. As a source of high-quality protein, including an array of bioactive molecules with potential activity against the modern epidemics of obesity and diabetes, microalgae are proposed as excellent foods for the future. Moreover, their incorporation into the human diet would decisively contribute to a more sustainable world because of their roles in carbon dioxide fixation and reducing the use of land for agricultural purposes. View Full-Text
Keywords: Spirulina (Arthrospira); Chlorella; Isochrysis; Tetraselmis; Nannochloropsis; algae; omega 3; obesity; diabetes Spirulina (Arthrospira); Chlorella; Isochrysis; Tetraselmis; Nannochloropsis; algae; omega 3; obesity; diabetes
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MDPI and ACS Style

Ramos-Romero, S.; Torrella, J.R.; Pagès, T.; Viscor, G.; Torres, J.L. Edible Microalgae and Their Bioactive Compounds in the Prevention and Treatment of Metabolic Alterations. Nutrients 2021, 13, 563. https://doi.org/10.3390/nu13020563

AMA Style

Ramos-Romero S, Torrella JR, Pagès T, Viscor G, Torres JL. Edible Microalgae and Their Bioactive Compounds in the Prevention and Treatment of Metabolic Alterations. Nutrients. 2021; 13(2):563. https://doi.org/10.3390/nu13020563

Chicago/Turabian Style

Ramos-Romero, Sara, Joan R. Torrella, Teresa Pagès, Ginés Viscor, and Josep L. Torres 2021. "Edible Microalgae and Their Bioactive Compounds in the Prevention and Treatment of Metabolic Alterations" Nutrients 13, no. 2: 563. https://doi.org/10.3390/nu13020563

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