Optimizing photon dose and frequency to enhance lipid productivity of thermophilic algae for biofuel production

Said Abu-Ghosh; Zvy Dubinsky; Gabi Banet; David Iluz

doi:10.1016/j.biortech.2018.03.110

Optimizing photon dose and frequency to enhance lipid productivity of thermophilic algae for biofuel production

Said Abu-Ghosh, Zvy Dubinsky, Gabi Banet, David Iluz

The Mina and Everard Goodman Faculty of Life Sciences - at Bar-Ilan University

Dead Sea-Arava Science Center

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The aim of this work was to examine the potential of the thermophilic green microalga Micractinium sp. to accumulate triacylglycerols (TAGs) and to develop a light strategy to increase TAG productivity in this alga. To this end, dense cultures of Micractinium sp. were grown at 37 °C under nitrogen (N) starvation and exposed to a light intensity of 1000 µmol photons m⁻² s⁻¹ of different light regimes. The highest per-biomass TAG-content and maximal volumetric productivities of TAG were displayed by the cultures grown under flashing light of 5 Hz with 50% duty cycle. Based on the results, a sufficiently high-starting culture density should be combined with a high irradiance delivered by an appropriate light regime to enhance the production of biomass enriched TAGs.

Original language	English
Pages (from-to)	374-379
Number of pages	6
Journal	Bioresource Technology
Volume	260
DOIs	https://doi.org/10.1016/j.biortech.2018.03.110
State	Published - Jul 2018

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

Funding

This work was financially supported by the Ministry of National Infrastructure, Energy and Water Resources, Israel (No. 215–11–047 ). The Author Said Abu-Ghosh dedicates this work to his parents. Appendix A

Funders	Funder number
Ministry of National Infrastructure, Energy and Water Resources	215–11–047

Keywords

Biofuel
Biomass
Flashing light
Micractinium
TAG
Thermophilic algae

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2018.03.110

Cite this

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abstract = "The aim of this work was to examine the potential of the thermophilic green microalga Micractinium sp. to accumulate triacylglycerols (TAGs) and to develop a light strategy to increase TAG productivity in this alga. To this end, dense cultures of Micractinium sp. were grown at 37 °C under nitrogen (N) starvation and exposed to a light intensity of 1000 µmol photons m−2 s−1 of different light regimes. The highest per-biomass TAG-content and maximal volumetric productivities of TAG were displayed by the cultures grown under flashing light of 5 Hz with 50% duty cycle. Based on the results, a sufficiently high-starting culture density should be combined with a high irradiance delivered by an appropriate light regime to enhance the production of biomass enriched TAGs.",

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Optimizing photon dose and frequency to enhance lipid productivity of thermophilic algae for biofuel production

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

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