Enhancement of Cell Growth and Lipid Content of a Freshwater Microalga Scenedesmus sp. by Optimizing Nitrogen, Phosphorus and Vitamin Concentrations for Biodiesel Production

Autor:	Neumara L. S. Hakalin, Lídia Maria P. Moraes, Amanda P. Paz, Donato A.G. Aranda
Rok vydání:	2014
Předmět:	Vitamin Biodiesel Phosphorus chemistry.chemical_element Biomass Biology biology.organism_classification complex mixtures Nitrogen chemistry.chemical_compound Nutrient chemistry Biodiesel production Botany Food science Scenedesmus
Zdroj:	Natural Science. :1044-1054
ISSN:	2150-4105 2150-4091
DOI:	10.4236/ns.2014.612095
Popis:	The effects of nitrogen, phosphorus and vitamin on growth and lipid content of a freshwater microalgae Scenedesmus sp. were investigated under indoor conditions. Nitrogen, phosphorus and vitamin presented significant statistical effect on lipid content, and a maximum lipid content of 29.3% was obtained, corresponded to increases of 90% when compared to those obtained with the original nutrients medium. On the other hand, only nitrogen and phosphorus presented significant statistical effect on cell growth, achieving ash free dry biomass, algal density, and specific growth rate of 1.3 g·L-1, 1.5E+07 cells mL-1, and 0.62 d-1, respectively. By the use of the desirability function, it was possible to maximize the cell growth and lipid content simultaneously. The fatty acid composition of the microalgal lipid comprises over 80% of saturated and monounsaturated fatty acids. Thus, Scenedesmus sp. biomass could be used as suitable feedstock for biodiesel production.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bb54a0c304e41e501f0bbfa1c407eaed https://doi.org/10.4236/ns.2014.612095 Zobrazit plný text záznamu