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Effect of ultrasound on Pseudoneochloris marina and Chlorella zofingiensis growth.
Pereira, Renata Nunes; Jaeschke, Débora Pez; Marczak, Ligia Damasceno Ferreira; Rech, Rosane; Mercali, Giovana Domeneghini.
Afiliación
  • Pereira RN; Department of Chemical Engineering, Federal University of Rio Grande do Sul (UFRGS), Engenheiro Luiz Englert Street, Porto Alegre, RS 90040-040, Brazil.
  • Jaeschke DP; College of Chemistry and Food, Federal University of Rio Grande, Rio Grande, RS 96203-900, Brazil.
  • Marczak LDF; Department of Chemical Engineering, Federal University of Rio Grande do Sul (UFRGS), Engenheiro Luiz Englert Street, Porto Alegre, RS 90040-040, Brazil.
  • Rech R; Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Bento Gonçalves Avenue, 9500, Porto Alegre, RS 91501-970, Brazil.
  • Mercali GD; Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Bento Gonçalves Avenue, 9500, Porto Alegre, RS 91501-970, Brazil. Electronic address: giovana.mercali@ufrgs.br.
Bioresour Technol ; 373: 128741, 2023 Apr.
Article en En | MEDLINE | ID: mdl-36791976
The present work evaluated the ultrasound (US) effects on the growth of Pseudoneochloris marina and Chlorella zofingiensis. For P. marina, US treatment did not increase cell proliferation and reduced cell density when used for 60 min (exponential phase, for 5 days), indicating a possible occurrence of cell damage. For C. zofingiensis, the application of discontinuous US for 10 min resulted in an increase of 65 % in biomass concentration compared to the control. These distinct behaviors indicate that microalgae species react differently to physical stimuli. After US treatment, a reduction of carotenoid, chlorophyll, lipid and protein concentrations was observed, which may be related to changes in the metabolic pathways to produce these compounds. Overall, the results of the present study show the potential of discontinuous US to enhance microalgae cell proliferation.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Chlorella / Microalgas / Chlorophyceae Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Chlorella / Microalgas / Chlorophyceae Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido