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Biotecnologia de Dunaliella salina para produção de B caroteno

Authors: Navalho, João;

Biotecnologia de Dunaliella salina para produção de B caroteno

Abstract

O presente trabalho teve como objectivo a optimização do processo produtivo de (3 caroteno pela microalga Dunaliella salina, numa estratégia de produção em duas fases. Na primeira fase do processo, fase de optimização da produção de biomassa num sistema de cultivo em semi-contínuo, foram obtidas produtividades celulares de 170 000 cel/ml/dia para condições de final de Inverno e 470 000 cel/ml/dia em condições de Verão. Os valores de nitrato residual obtidos nas culturas da primeira fase. foram conpatíveis com a utilização directa das culturas como inoculo na segunda. Na fase de carotenogénese. realizada num sistema de "feed-batch", foram obtidas^produtividades de (3 caroteno de 477 mg/nr/dia para condições de final de Inverno e 621 mg/nr/dia em condições de Verão, o controlo da concentração de nitrato nas culturas mostrou-se eficaz na indução de síntese do pigmento e o teor em (3 caroteno e clorofila das culturas da primeira fase, mostrou ser um factor preponderante à obtenção de culturas de elevada relação (3 caroteno/clorofila na segunda.

Country
Portugal
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Keywords

Microalgas, Aquacultura, Dunaliella salina

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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