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Optimization of Biopigment Extraction from Dunaliella salina Using Ultrasound: Perspectives for Microalgal Biorefineries

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Autor(es):
Hidalgo, Vitor Bertolassi ; Felix, Fellipe Cesar Cardoso de Souza ; Da Ros, Patricia Caroline Molgero
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: CHEMICAL ENGINEERING & TECHNOLOGY; v. 48, n. 8, p. 10-pg., 2025-08-12.
Resumo

Natural pigments of microbial origin have attracted industrial interest due to their safety profile, environmental compatibility, and lack of carcinogenic effects. This study aimed to optimize the extraction of chlorophylls and carotenoids from Dunaliella salina, which was cultivated in bubble column photobioreactors, followed by biomass harvesting and ethanol-based extraction assisted by probe ultrasound. A 22 factorial design was used to assess the effects of extraction time and ultrasound cycle. Results showed that extraction time significantly influenced all pigment extraction, favoring shorter durations, whereas the cycle was significant only for chlorophylls. The extraction conditions also enabled the recovery of beta-carotene, indicating a substantial production of pigments. (AU)

Processo FAPESP: 21/02677-4 - Obtenção de bioprodutos no contexto de biorrefinaria sustentável a base de microalgas
Beneficiário:Fellipe Cesar Cardoso de Souza Felix
Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
Processo FAPESP: 22/06209-8 - Estudo do potencial do biochar microalgal como suporte para obtenção de biocatalisadores sustentáveis no contexto de biorrefinarias visando à síntese de biocombustíveis
Beneficiário:Patricia Caroline Molgero da Rós
Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular