2024/01/01 by Johannes Magpusao, Indrawati Oey, Biniam Kebede · 1 voice
Energy · Environmental Science · #Algal biology and biofuel production #Aquatic Ecosystems and Phytoplankton Dynamics
paper · pdf · doi:10.48130/fia-0024-0007
openalex publication_date 2024/01/01 · openalex created_date 2024/03/29 · openalex updated_date 2026/08/01
Microalgae are increasingly regarded as a sustainable source of novel food and functional products due to their nutritional composition. This study aimed to conduct an in-depth analysis of the chemical, microstructural and rheological properties of <italic>Arthrospira</italic>, <italic>Isochrysis</italic>, <italic>Nannochloropsis</italic>, and <italic>Tetraselmis</italic> species. Chemometric data analysis was employed to integrate the multivariate data, investigate the classification among the four species, and identify discriminating and distinct features. <italic>Arthrospira</italic> is high in protein content, and <italic>Nannochloropsis</italic> is lipid-rich with dominantly polyunsaturated fatty acids. <italic>Isochrysis</italic> is rich in carotenoids and total phenolics, while <italic>Tetraselmis</italic> is high in carbohydrates. Key discriminant volatile markers encompass aldehydes, terpenes, and hydrocarbons for <italic>Arthrospira</italic>; ketones and alcohols for <italic>Nannochloropsis</italic>; aldehydes, ketones, and sulfur-containing compounds for <italic>Tetraselmis</italic>; and furans and aldehydes for <italic>Isochrysis</italic>. Moreover, <italic>Arthrospira</italic> and <italic>Isochrysis</italic> demonstrate elevated viscosity and notable thickening potential. In summary, the different microalgal biomass studied in this study showcase unique compositional, rheological, and volatile properties, highlighting their potential as functional ingredients for diverse applications in the food and pharmaceutical industries.