Summary
The yield of three large scale cultures ofScenedesmus acutus, Chlorella vulgaris, andCoelastrum proboscideum was drum dried. The amino acid composition of the three species proved to compare well with the FAO (11) amino acid pattern except for methionine and isoleucine. Bio-assay evaluation of the three algal proteins gave the following values: protein efficiency ratio, 1.9–2.1; net protein ratio, 2,4–2.8; biological value, 75–78; digestibility coefficient 88–89; and calculated net protein utilization 67–69. Total nucleic acid content was about 4%. Uric acid content in the plasma of rats fed Scenedesmus, Chlorella, and Coelastrum diets was significantly higher (P < 0.05) than in plasma of rats fed on a casein diet.
Zusammenfassung
Proben von Massenkulturen der Algen Scenedesmus acutus, Chlorella vulgaris und Coelastrum proboscideum wurden getrocknet und untersucht. Die Aminosäurezusammensetzung der Proteine der drei Stämme war mit der von der FAO (11) empfohlenen vergleichbar außer für Methionin und Isoleucin. Die biologische Auswertung der drei Algenproteine ergab folgende Werte: Protein efficiency ratio 1,9–2,1; net protein ratio 2,4–2,8; biologischer Wert 75–78; digestibility coefficient 88–89; berechnete net protein utilization 67–69. Der Gesamt-Nucleinsäuregehalt betrug etwa 4%. Die Harnsäurekonzentration im Serum von mit Algen gefütterten Ratten war signifikant höher als bei Tieren mit einer Casein-Diät.
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The project was partially financed by the Federal Ministry for Research and Technology (BMFT) and the Egyptian Academy of Scientific Research and Technology (ASRT).
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Saleh, A.M., Hussein, L.A., Abdalla, F.E. et al. The nutritional quality of drum-dried algae produced in open door mass culture. Z Ernährungswiss 24, 256–263 (1985). https://doi.org/10.1007/BF02023671
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DOI: https://doi.org/10.1007/BF02023671