Chemical composition of selected marine microalgae, with emphasis on lipid and carbohydrate production for potential use as feed resources

Abstract Marine microalgae are a promising sustainable source of lipids, omega-3 fatty acids, and carbohydrates. Selected species belonging to the Bacillariophyceae, Haptophyceae, Eustigmatophyceae, Prasinophyceae were characterised for cellular content carbon nitrogen, production yields total carbohydrates, ?-glucans. Carbon nitrogen showed hyperbolic decrease with increasing cell numbers Chaetoceros calcitrans , C. muelleri Skeletonema costatum Tetraselmis sp., Nannochloropsis oculata . Cultures Pavlova lutheri Tisochrysis lutea an increase in per cell, but content. The lipid N. T. increased decreasing relative growth rate; however, highest productivity lipids was found grown at 40% maximum specific rate. eicosapentaenoic acid docosahexaenoic ?-glucan fraction carbohydrates very low Out investigated, had yield ?-glucans, obtained when cultivated