Continuous Microalgal Cultivation for Antioxidants Production
| Autor: | Juan Carlos Paredes-Rojas, Facundo J. Márquez-Rocha, Carlos Alfonso Álvarez-González, Jenny Fabiola López-Hernández, D. Palma-Ramírez, Pedro García-Alamilla |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Cyanobacteria Antioxidant Light medicine.medical_treatment Pharmaceutical Science Biomass Photobioreactor phenols continuous cultivation 01 natural sciences Article Analytical Chemistry lcsh:QD241-441 Photobioreactors Alkaloids lcsh:Organic chemistry 010608 biotechnology 0103 physical sciences Drug Discovery Phycocyanin Spectroscopy Fourier Transform Infrared medicine Spirulina Food science Physical and Theoretical Chemistry Carotenoid chemistry.chemical_classification biology 010308 nuclear & particles physics Chemistry Superoxide Dismutase Terpenes microalgae Organic Chemistry Haptophyta biology.organism_classification Carotenoids phycocyanin Terpenoid Culture Media antioxidants Chemistry (miscellaneous) Molecular Medicine Composition (visual arts) tocopherols |
| Zdroj: | Molecules Volume 25 Issue 18 Molecules, Vol 25, Iss 4171, p 4171 (2020) |
| ISSN: | 1420-3049 |
| DOI: | 10.3390/molecules25184171 |
| Popis: | 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&minus 1. Phenols, terpenoids, and alkaloids were produced by Spirulinaplatensis, Isochrysisgalbana, and Tetraselmissuecica, whereas tocopherols and carotenoids were produced by the four microalgae, except for phycocyanin and allophycocyanin, which were only produced by S. platensis and Porphyridiumcruentum. The findings demonstrate that the continuous cultivation of microalgae in photobioreactors is a convenient method of efficiently producing antioxidants. |
| Databáze: | OpenAIRE |
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