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Article

Variability in Macro- and Micronutrients of 15 Commercially Available Microalgae Powders

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Junior Research Group Nutritional Concepts, Institute of Nutritional Science, Friedrich Schiller University Jena, Dornburger Str. 29, 07743 Jena, Germany
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Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Jena-Halle-Leipzig, Dornburger Str. 25, 07743 Jena, Germany
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Competence Center Algal Biotechnology, Anhalt University of Applied Science, Bernburger Straße 55, 06366 Köthen, Germany
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Institute of Agricultural and Nutritional Science, Martin Luther University Halle-Wittenberg, Theodor-Lieser-Str. 11, 06120 Halle, Germany
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Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114–116, 14558 Nuthetal, Germany
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NutriAct-Competence Cluster Nutrition Research, Berlin-Potsdam, Arthur-Scheunert-Allee 114–116, 14558 Nuthetal, Germany
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Institute of Nutritional Science, Friedrich Schiller University Jena, Dornburger Str. 25, 07743 Jena, Germany
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Author to whom correspondence should be addressed.
Academic Editor: Cédric Delattre
Mar. Drugs 2021, 19(6), 310; https://doi.org/10.3390/md19060310
Received: 13 April 2021 / Revised: 22 May 2021 / Accepted: 24 May 2021 / Published: 27 May 2021
(This article belongs to the Collection Microalgal Active Biomolecules)
The nutrient composition of 15 commercially available microalgae powders of Arthrospira platensis, Chlorella pyrenoidosa and vulgaris, Dunaliella salina, Haematococcus pluvialis, Tetraselmis chuii, and Aphanizomenon flos-aquae was analyzed. The Dunaliella salina powders were characterized by a high content of carbohydrates, saturated fatty acids (SFAs), omega-6-polyunsaturated fatty acids (n6-PUFAs), heavy metals, and α-tocopherol, whereas the protein amounts, essential amino acids (EAAs), omega-3-PUFAs (n3-PUFAs), vitamins, and minerals were low. In the powder of Haematococcus pluvialis, ten times higher amounts of carotenoids compared to all other analyzed powders were determined, yet it was low in vitamins D and E, protein, and EAAs, and the n6/n3-PUFAs ratio was comparably high. Vitamin B12, quantified as cobalamin, was below 0.02 mg/100 g dry weight (d.w.) in all studied powders. Based on our analysis, microalgae such as Aphanizomenon and Chlorella may contribute to an adequate intake of critical nutrients such as protein with a high content of EAAs, dietary fibers, n3-PUFAs, Ca, Fe, Mg, and Zn, as well as vitamin D and E. Yet, the nutritional value of Aphanizomenon flos-aquae was slightly decreased by high contents of SFAs. The present data show that microalgae are rich in valuable nutrients, but the macro- and micronutrient profiles differ strongly between and within species. View Full-Text
Keywords: microalgae; nutrients; fatty acids; PUFAs; protein; N-factor; vitamin D; vitamin B12; minerals; trace elements microalgae; nutrients; fatty acids; PUFAs; protein; N-factor; vitamin D; vitamin B12; minerals; trace elements
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MDPI and ACS Style

Sandgruber, F.; Gielsdorf, A.; Baur, A.C.; Schenz, B.; Müller, S.M.; Schwerdtle, T.; Stangl, G.I.; Griehl, C.; Lorkowski, S.; Dawczynski, C. Variability in Macro- and Micronutrients of 15 Commercially Available Microalgae Powders. Mar. Drugs 2021, 19, 310. https://doi.org/10.3390/md19060310

AMA Style

Sandgruber F, Gielsdorf A, Baur AC, Schenz B, Müller SM, Schwerdtle T, Stangl GI, Griehl C, Lorkowski S, Dawczynski C. Variability in Macro- and Micronutrients of 15 Commercially Available Microalgae Powders. Marine Drugs. 2021; 19(6):310. https://doi.org/10.3390/md19060310

Chicago/Turabian Style

Sandgruber, Fabian, Annekathrin Gielsdorf, Anja C. Baur, Benjamin Schenz, Sandra M. Müller, Tanja Schwerdtle, Gabriele I. Stangl, Carola Griehl, Stefan Lorkowski, and Christine Dawczynski. 2021. "Variability in Macro- and Micronutrients of 15 Commercially Available Microalgae Powders" Marine Drugs 19, no. 6: 310. https://doi.org/10.3390/md19060310

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