| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
The combined effects of blue light and dilution rate on lipid class and fatty acid composition of Tisochrysis lutea
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| Autores: |
Marchetti, Julie
Da Costa, Fiz
Bougaran, Gael
Quere, Claudie
Soudant, Philippe
Robert, Rene
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| Data: |
2018-06
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| Ano: |
2018
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| Palavras-chave: |
Tisochrysis lutea
Blue light
Dilution rate
Lipid classes
Fatty acids
Chemostat
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| 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).
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00412/52299/53355.pdf
DOI:10.1007/s10811-017-1340-y
https://archimer.ifremer.fr/doc/00412/52299/
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| Editor: |
Springer
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| Formato: |
application/pdf
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| Fonte: |
Journal Of Applied Phycology (0921-8971) (Springer), 2018-06 , Vol. 30 , N. 3 , P. 1483-1494
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| Direitos: |
Springer Science+Business Media B.V., part of Springer Nature 2017
info:eu-repo/semantics/openAccess
restricted use
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