Productivity and biochemical composition of Tetradesmus obliquus and Phaeodactylum tricornutum : effects of different cultivation approaches
| Autor: | Anna Martello, Antonio Luca Langellotti, Silvia Buono, Angela Dibenedetto, Marina Massa, Antonella Angelini, Vincenzo Fogliano, Antonella Colucci |
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| Přispěvatelé: | Buono, S., Colucci, A., Angelini, A., Langellotti, A. L., Massa, M., Martello, A., Fogliano, V., Dibenedetto, A. |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
020209 energy Photobioreactor Biomass 02 engineering and technology Plant Science Chlorophyta CO fixation Aquatic Science Wastewater 01 natural sciences 010608 biotechnology Botany 0202 electrical engineering electronic engineering information engineering Microalgae Food science Phaeodactylum tricornutum VLAG biology fixation Carbon fixation Pond biology.organism_classification CO Anaerobic digestion Food Quality and Design Productivity (ecology) Biomass productivity |
| Zdroj: | Journal of Applied Phycology, 28(6), 3179-3192 Journal of Applied Phycology 28 (2016) 6 |
| ISSN: | 0921-8971 |
| Popis: | The present work evaluated biomass productivity, carbon dioxide fixation rate, and biochemical composition of two microalgal species, Phaeodactylum tricornutum (Bacillariophyta) and Tetradesmus obliquus (Chlorophyta), cultivated indoors in high-technology photobioreactors (HT-PBR) and outdoors both in pilot ponds and low-technology photobioreactors in a greenhouse in southern Italy. Microalgae were grown in standard media, under nitrogen starvation, and in two liquid digestates obtained from anaerobic digestion of agro-zootechnical and vegetable biomass. P. tricornutum, cultivated in semi-continuous mode in indoor HT-PBRs with standard medium, showed a biomass productivity of 21.0 ± 2.3 g m−2 d−1. Applying nitrogen starvation, the lipid productivity increased from 2.3 up to 4.5 ± 0.5 g m−2 d−1, with a 24 % decrease of biomass productivity. For T. obliquus, a biomass productivity of 9.1 ± 0.9 g m−2 d−1 in indoor HT-PBR was obtained using standard medium. Applying liquid digestates as fertilizers in open ponds, T. obliquus gave a biomass productivity (10.8 ± 2.0 g m−2 d−1) not statistically different from complete medium such as P. tricornutum (6.5 ± 2.2 g m−2 d−1). The biochemical data showed that the fatty acid composition of the microalgal biomass was affected by the different cultivation conditions for both microalgae. In conclusion, it was found that the microalgal productivity in standard medium was about doubled in HT-PBR compared to open ponds for P. tricornutum and was about 20 % higher for T. obliquus. |
| Databáze: | OpenAIRE |
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