NDLI: Continuous Microalgal Cultivation for Antioxidants Production

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Continuous Microalgal Cultivation for Antioxidants Production

Content Provider	MDPI
Author	Jenny, Fabiola López-Hernández Pedro, García-Alamilla Diana, Palma-Ramírez Carlos, Alfonso Álvarez-González Facundo, J. Márquez-Rocha Paredes-Rojas, Juan Carlos
Copyright Year	2020
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 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.
Starting Page	4171
e-ISSN	14203049
DOI	10.3390/molecules25184171
Journal	Molecules
Issue Number	18
Volume Number	25
Language	English
Publisher	MDPI
Publisher Date	2020-09-11
Access Restriction	Open
Subject Keyword	Molecules Paper and Wood Antioxidants Phenols Tocopherols Phycocyanin Continuous Cultivation Microalgae
Content Type	Text
Resource Type	Article

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