BIOMASS NUTRIENT PROFILES OF THE MICROALGA PHAEODACTYLUM TRICORNUTUM

Autor:	M.M. Rebolloso-Fuentes, J.J. Ramos-Miras, José Luis Guil-Guerrero, A. Navarro-Pérez
Rok vydání:	2001
Předmět:	Pharmacology chemistry.chemical_classification biology Biophysics Biomass Fatty acid Photobioreactor Cell Biology biology.organism_classification Neutral Detergent Fiber Nutrient chemistry Botany Composition (visual arts) Phaeodactylum tricornutum Food science Carotenoid Food Science
Zdroj:	Scopus-Elsevier
ISSN:	1745-4514 0145-8884
Popis:	The microalga Phaeodactylum tricornutum was cultured under various conditions in an external tubular photobioreactor and in a bubble column. The proximate composition (moisture, ash, crude protein, available carbohydrates, fiber, lipids and energy), nitrate, nucleic acids, mineral elements (Na, K, Ca, Mg, Fe, Cu, Zn, Mn, P, S, As, Pb, Cd), C/N ratio, fatty acids and pigments (total carotenoids, carotenoid class and chlorophylls) were analyzed. On average, the biomass contained 36.4% crude protein, 26.1% available carbohydrates, 18.0% lipids, 15.9% ash and 0.25% neutral detergent fiber, on a dry wt basis. The mineral element contents in 100 g dry biomass were: Ca (1910 mg), K (1720 mg), Na (1430 mg), S (1050 mg), Mg (555 mg), Zn (373 mg), (Mn 31.4 mg), Cu (8.4 mg), and P (269 mg). Toxic heavy metal contents were negligible. The fatty acid content was (on percent dry wt): 0.65% in 14:0;1.28% in 16:0; 1.48% in 16:lω7; 0.34% in 16:2ω4; 0.75% in 16:3ω4 and 2.50% in 20:5ω3. Nutrient composition of biomass was highly influenced by means of the residence time in the culture bioreactor and the external irradiance. The biomass produced at low external irradiance was richer in protein and eicosapentaenoic acid.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cdffd5e120ece9987ddf3f3826eeeb5 https://doi.org/10.1111/j.1745-4514.2001.tb00724.x Zobrazit plný text záznamu