Effect of the Culture Nutrients on the Biomass and Lipid Productivities of Microalgae Dunaliella tertiolecta

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2013

Autores

Teresa M. Mata (Autor) FEUP; Ricardo Almeida (Autor) FEUP; Nídia de Sá Caetano (Autor) FEUP

Ata de Conferência Internacional

Título: ICHEAP-11: 11TH INTERNATIONAL CONFERENCE ON CHEMICAL AND PROCESS ENGINEERING, PTS 1-4

Páginas: 973-978

11th International Conference on Chemical and Process Engineering (ICheaP)

Milan, ITALY, JUN 02-05, 2013

Indexação

ISI Web of Knowledge - 26 Citações

ISI Web of Science

Scopus - 29 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas

Outras Informações

ID Authenticus: P-008-BH3

Abstract (EN): This work analyses the influence of macro and micronutrients on the growth, biomass and lipid productivities of Dunaliella tertiolecta (D. tertiolecta), showing that with the exception of Nitrogen (N) and Iron (Fe), the other nutrients added to the culture medium - Magnesium (Mg), Potassium (K), Manganese (Mn) and Zinc (Zn) - did not influence the studied parameters. The best maximum and average dry biomass productivities were respectively 141.8 mg/L/d and 63.1 mg/L/d, obtained in the 5th day of the test, by increasing the N concentration 10 times in comparison to the standard culture medium "artificial seawater medium with vitamins". In these conditions, the lipid content and maximum lipid productivity were respectively 33.5 % and 47.4 mg/L/d, corresponding to more than three times the value in the standard conditions (13.3 mg/L/d). Also, by increasing the Fe concentration 10 times in the culture medium, the maximum lipid productivity increased to almost the double, i.e. from 14.6 mg/L/d to 28.0 mg/L/d, obtained in the 28th day of the test. Therefore, N and Fe addition to the culture medium resulted in a significant increase in lipid productivity, suggesting that residual wastewaters rich in N or Fe could be used to cultivate D. tertiolecta for lipid production.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6