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Continuous Microalgal Cultivation for Antioxidants Production

Microalgae, including cyanobacteria, represent a valuable source of natural compounds that have remarkable bioactive properties. Each microalga species produces a mixture of antioxidants with different amounts of each compound. Three aspects are important in the production of bioactive compounds: th...

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Autores principales: López-Hernández, Jenny Fabiola, García-Alamilla, Pedro, Palma-Ramírez, Diana, Álvarez-González, Carlos Alfonso, Paredes-Rojas, Juan Carlos, Márquez-Rocha, Facundo J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570968/
https://www.ncbi.nlm.nih.gov/pubmed/32933083
http://dx.doi.org/10.3390/molecules25184171
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author López-Hernández, Jenny Fabiola
García-Alamilla, Pedro
Palma-Ramírez, Diana
Álvarez-González, Carlos Alfonso
Paredes-Rojas, Juan Carlos
Márquez-Rocha, Facundo J.
author_facet López-Hernández, Jenny Fabiola
García-Alamilla, Pedro
Palma-Ramírez, Diana
Álvarez-González, Carlos Alfonso
Paredes-Rojas, Juan Carlos
Márquez-Rocha, Facundo J.
author_sort López-Hernández, Jenny Fabiola
collection PubMed
description Microalgae, including cyanobacteria, represent a valuable source of natural compounds that have remarkable bioactive properties. Each microalga species produces a mixture of antioxidants with different amounts of each compound. Three aspects are important in the production of bioactive compounds: the microalga species, the medium composition including light supplied and the photobioreactor design, and operation characteristics. In this study, the antioxidant content and productivity performance of four microalgae were assessed in batch and continuous cultures. Biomass productivity by the four microalgae was substantially enhanced under continuous cultivation by 5.9 to 6.3 times in comparison with batch cultures. The energetic yield, under the experimental conditions studied, ranged from 0.03 to 0.041 g biomass kJ(−1). Phenols, terpenoids, and alkaloids were produced by Spirulina platensis, Isochrysis galbana, and Tetraselmis suecica, whereas tocopherols and carotenoids were produced by the four microalgae, except for phycocyanin and allophycocyanin, which were only produced by S. platensis and Porphyridium cruentum. The findings demonstrate that the continuous cultivation of microalgae in photobioreactors is a convenient method of efficiently producing antioxidants.
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spelling pubmed-75709682020-10-28 Continuous Microalgal Cultivation for Antioxidants Production López-Hernández, Jenny Fabiola García-Alamilla, Pedro Palma-Ramírez, Diana Álvarez-González, Carlos Alfonso Paredes-Rojas, Juan Carlos Márquez-Rocha, Facundo J. Molecules Article Microalgae, including cyanobacteria, represent a valuable source of natural compounds that have remarkable bioactive properties. Each microalga species produces a mixture of antioxidants with different amounts of each compound. Three aspects are important in the production of bioactive compounds: the microalga species, the medium composition including light supplied and the photobioreactor design, and operation characteristics. In this study, the antioxidant content and productivity performance of four microalgae were assessed in batch and continuous cultures. Biomass productivity by the four microalgae was substantially enhanced under continuous cultivation by 5.9 to 6.3 times in comparison with batch cultures. The energetic yield, under the experimental conditions studied, ranged from 0.03 to 0.041 g biomass kJ(−1). Phenols, terpenoids, and alkaloids were produced by Spirulina platensis, Isochrysis galbana, and Tetraselmis suecica, whereas tocopherols and carotenoids were produced by the four microalgae, except for phycocyanin and allophycocyanin, which were only produced by S. platensis and Porphyridium cruentum. The findings demonstrate that the continuous cultivation of microalgae in photobioreactors is a convenient method of efficiently producing antioxidants. MDPI 2020-09-11 /pmc/articles/PMC7570968/ /pubmed/32933083 http://dx.doi.org/10.3390/molecules25184171 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
López-Hernández, Jenny Fabiola
García-Alamilla, Pedro
Palma-Ramírez, Diana
Álvarez-González, Carlos Alfonso
Paredes-Rojas, Juan Carlos
Márquez-Rocha, Facundo J.
Continuous Microalgal Cultivation for Antioxidants Production
title Continuous Microalgal Cultivation for Antioxidants Production
title_full Continuous Microalgal Cultivation for Antioxidants Production
title_fullStr Continuous Microalgal Cultivation for Antioxidants Production
title_full_unstemmed Continuous Microalgal Cultivation for Antioxidants Production
title_short Continuous Microalgal Cultivation for Antioxidants Production
title_sort continuous microalgal cultivation for antioxidants production
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570968/
https://www.ncbi.nlm.nih.gov/pubmed/32933083
http://dx.doi.org/10.3390/molecules25184171
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