Data/hora: 14/06/2024 03:06:31

Provedor de dados: | 5
País: | France
Título: | The combined effects of blue light and dilution rate on lipid class and fatty acid composition of Tisochrysis lutea
Autores: | Marchetti, Julie; Da Costa, Fiz; Bougaran, Gael; Quere, Claudie; Soudant, Philippe; Robert, Rene.
Data: | 2018-06
Ano: | 2018
Palavras-chave: | Tisochrysis lutea; Blue light; Dilution rate; Lipid classes; Fatty acids; Chemostat.
Resumo: | The lipid class and the fatty acid compositions of microalgae highly influence bivalve larval and post-larval development. Light is an essential environmental factor for microalgal culture, and quantity and quality of light may induce changes in the biochemical composition of the algae. The objective of this study was to investigate the effect of light spectrum (blue vs. white light) on lipid class and fatty acid compositions of Tisochrysis lutea cultured in a chemostat. Two different dilution rates (D) were assayed for each light spectrum: 0.2 and 0.7 day−1. Triacylglycerol (TAG), sterol, and hydrocarbon (HC) content increased sharply at low D. The proportion of alkenones was significantly reduced under blue light. Polyunsaturated fatty acids (PUFA), and particularly n-3 PUFA, content in phospholipids (PL) increased under blue light compared to white light at low D. Thus, blue light raised 22:6(n-3) levels in total lipids of T. lutea at low D. The cultivation of T. lutea in a chemostat at low D under blue light may improve nutritional value as feed for bivalve larvae by modifying the PUFA profile, especially increasing 22:6(n-3).
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00412/52299/53355.pdf

DOI:10.1007/s10811-017-1340-y

https://archimer.ifremer.fr/doc/00412/52299/

Editor: | Springer
Formato: | application/pdf
Fonte: | Journal Of Applied Phycology (0921-8971) (Springer), 2018-06 , Vol. 30 , N. 3 , P. 1483-1494

Fonte:

Springer Science+Business Media B.V., part of Springer Nature 2017

info:eu-repo/semantics/openAccess

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