Biomass Nutrient Profiles of Three Microalgae: Spirulina platensis, Chlorella vulgaris , and Isochrisis galbana

ABSTRACT: Nutritional composition was determined for Spirulina platensis, Chlorella vulgaris , and Isochrisis galbana cultures. Data include the proximate composition, energy value, mineral elements, and fatty acid composition. Sixteen strains of these microalgae were obtained as a percentage of total fat. Total PUFA, SFA contents, n ‐3/ n ‐6 ratios, and eicosapentaenoic acid (EPA)/docosahexaenoic acid (DHA) ratios were obtained. Protein content was high in Spirulina samples, whereas Isochrisis had the highest ash content. Spirulina is a rich source of γ‐linolenic acid (GLA); Chlorella was an important source of PUFAs. Spirulina is a rich source of K, Chlorella is rich in P, and Isochrisis is a good source of Ca and Mg. Se content of Isochrisis is higher than in the other microalgae.