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Effects of nitrogen sources on growth density, lipid yield and eicosapentaenoic acid of Nannochloropsis oculata / 生物工程学报
Chinese Journal of Biotechnology ; (12): 1865-1869, 2013.
Artículo en Chino | WPRIM | ID: wpr-242444
ABSTRACT
Nitrogen source is one of the important factors that affect the microalgae growth and lipid accumulation. We studied the effects of various nitrogen sources (i.e. NaNO3, CO(NH2)2, NH4Cl and CH3COONH4) and amount on the growth density, lipid yield, and eicosapentaenoic acid (EPA) content of Nannochloropsis oculata by single factor experimental method. The results show that N. oculata preferred NH4+ as nitrogen source rather than NO3- and CO(NH2)2. NH4+ could promote the growth and lipid accumulation of N. oculata. With the increase of nitrogen concentration, the biomass and the content of polyunsaturated fatty acid (PUFA) increased, but the content of lipid decreased. CH3COONH4 was the most suitable for growth, accumulation of lipid and EPA of N. oculata among the four investigated nitrogen sources. The optimal concentration was 5.29 mmol/L.
Asunto(s)
Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Ácido Eicosapentaenoico / Estramenopilos / Microalgas / Lípidos / Metabolismo / Nitrógeno Idioma: Chino Revista: Chinese Journal of Biotechnology Año: 2013 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Ácido Eicosapentaenoico / Estramenopilos / Microalgas / Lípidos / Metabolismo / Nitrógeno Idioma: Chino Revista: Chinese Journal of Biotechnology Año: 2013 Tipo del documento: Artículo