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Open AccessArticle

Potential of Phaeodactylum tricornutum for Biodiesel Production under Natural Conditions in Chile

1
Energy Planning Program, Federal University of Rio de Janeiro, 21941-914 Rio de Janeiro, Brazil
2
CIETI, School of Engineering (ISEP), Polytechnic Institute of Porto (IPP), 4200-072 Porto, Portugal
3
LEPABE, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
4
GIBMAR, Biotechnology Centre, Concepción University, 4070386 Concepción, Chile
*
Author to whom correspondence should be addressed.
Energies 2018, 11(1), 54; https://doi.org/10.3390/en11010054
Received: 10 November 2017 / Revised: 22 December 2017 / Accepted: 25 December 2017 / Published: 28 December 2017
Diatoms are very diverse and highly productive organisms, found in a wide variety of environments. This study aims to analyze the growth and lipid composition of Phaeodactylum tricornutum, cultured in an outdoor pilot-scale bubble column photobioreactor under natural conditions in Chile for biodiesel production. Results showed that P. tricornutum cultures reached their highest biomass concentration (0.96 ± 0.04 kg m−3) after 14 days of culturing, at the stationary phase, with a volumetric productivity of 0.13 kg m−3 d−1. Biomass samples showed a total lipid content of 9.08 ± 0.38 wt %. The fatty acid methyl ester analysis revealed a composition of 24.39% C16-C18 fatty acids, 42.34% saturated fatty acids, 21.91% monounsaturated fatty acids and 31.41% polyunsaturated fatty acids. These findings suggest that P. tricornutum oil can be used as an alternative raw material for the production of biodiesel capable of meeting international quality standards. View Full-Text
Keywords: bubble column photobioreactor; lipids; microalgae; natural culture conditions; outdoor culture bubble column photobioreactor; lipids; microalgae; natural culture conditions; outdoor culture
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Branco-Vieira, M.; San Martin, S.; Agurto, C.; Santos, M.A.; Freitas, M.A.V.; Mata, T.M.; Martins, A.A.; Caetano, N.S. Potential of Phaeodactylum tricornutum for Biodiesel Production under Natural Conditions in Chile. Energies 2018, 11, 54.

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