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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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/25/18/4171 |
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| author | Jenny Fabiola López-Hernández Pedro García-Alamilla Diana Palma-Ramírez Carlos Alfonso Álvarez-González Juan Carlos Paredes-Rojas Facundo J. Márquez-Rocha |
| author_facet | Jenny Fabiola López-Hernández Pedro García-Alamilla Diana Palma-Ramírez Carlos Alfonso Álvarez-González Juan Carlos Paredes-Rojas Facundo J. Márquez-Rocha |
| author_sort | Jenny Fabiola López-Hernández |
| collection | DOAJ |
| 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<sup>−1</sup>. Phenols, terpenoids, and alkaloids were produced by <i>Spirulina</i><i>platensis</i>, <i>Isochrysis</i><i>galbana</i>, and <i>Tetraselmis</i><i>suecica</i>, whereas tocopherols and carotenoids were produced by the four microalgae, except for phycocyanin and allophycocyanin, which were only produced by <i>S. platensis</i> and <i>Porphyridium</i><i>cruentum</i>. The findings demonstrate that the continuous cultivation of microalgae in photobioreactors is a convenient method of efficiently producing antioxidants. |
| first_indexed | 2024-03-10T16:23:14Z |
| format | Article |
| id | doaj.art-1f9a69fa54534e04b4fc778e7bb33479 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T16:23:14Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-1f9a69fa54534e04b4fc778e7bb334792023-11-20T13:28:51ZengMDPI AGMolecules1420-30492020-09-012518417110.3390/molecules25184171Continuous Microalgal Cultivation for Antioxidants ProductionJenny Fabiola López-Hernández0Pedro García-Alamilla1Diana Palma-Ramírez2Carlos Alfonso Álvarez-González3Juan Carlos Paredes-Rojas4Facundo J. Márquez-Rocha5Academic Division of Biological Sciences, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco 86150, MexicoAcademic Division of Agriculture and Livestock Science, Universidad Juárez Autónoma de Tabasco, Centro, Tabasco 86280, MexicoMexican Center for Cleaner Production, CDMX, Instituto Politécnico Nacional, Ciudad de México 07738, MexicoAcademic Division of Biological Sciences, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco 86150, MexicoMexican Center for Cleaner Production, CDMX, Instituto Politécnico Nacional, Ciudad de México 07738, MexicoMexican Center for Cleaner Production, Tabasco Unit, Instituto Politécnico Nacional, Cunduacán, Tabasco 86691, MexicoMicroalgae, 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<sup>−1</sup>. Phenols, terpenoids, and alkaloids were produced by <i>Spirulina</i><i>platensis</i>, <i>Isochrysis</i><i>galbana</i>, and <i>Tetraselmis</i><i>suecica</i>, whereas tocopherols and carotenoids were produced by the four microalgae, except for phycocyanin and allophycocyanin, which were only produced by <i>S. platensis</i> and <i>Porphyridium</i><i>cruentum</i>. The findings demonstrate that the continuous cultivation of microalgae in photobioreactors is a convenient method of efficiently producing antioxidants.https://www.mdpi.com/1420-3049/25/18/4171antioxidantsphenolstocopherolsphycocyanincontinuous cultivationmicroalgae |
| spellingShingle | Jenny Fabiola López-Hernández Pedro García-Alamilla Diana Palma-Ramírez Carlos Alfonso Álvarez-González Juan Carlos Paredes-Rojas Facundo J. Márquez-Rocha Continuous Microalgal Cultivation for Antioxidants Production Molecules antioxidants phenols tocopherols phycocyanin continuous cultivation microalgae |
| 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 | antioxidants phenols tocopherols phycocyanin continuous cultivation microalgae |
| url | https://www.mdpi.com/1420-3049/25/18/4171 |
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