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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...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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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. |
format | Online Article Text |
id | pubmed-7570968 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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