Light intensity impacts the production of biofuel intermediates in Heterosigma akashiwo growing on simulated flue gas containing carbon dioxide and nitric oxide

Bianco, Colleen M.; Stewart, Jennifer J.; Miller, Katherine R.; Fitzgerald, Catherine; Coyne, Kathryn J.

doi:10.1016/j.biortech.2016.07.119

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Light intensity impacts the production of biofuel intermediates in Heterosigma akashiwo growing on simulated flue gas containing carbon dioxide and nitric oxide

2016
By Bianco, Colleen M. ; Stewart, Jennifer J. ; Miller, Katherine R. ; ...
Source: Bioresource Technology, 219, 246-251

[PDF-244.79 KB]

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Journal Title:

Bioresource Technology
Personal Author:

Bianco, Colleen M. ; Stewart, Jennifer J. ; Miller, Katherine R. ; Fitzgerald, Catherine ; Coyne, Kathryn J.

Bianco, Colleen M. ; Stewart, Jennifer J. ; Miller, Katherine R. ; Fitzgerald, Catherine ; Coyne, Kathryn J. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research)
Description:

As a potential biofuel feedstock, the marine microalga, Heterosigma akashiwo, accumulates significant lipids, is capable of long-term growth in outdoor photobioreactors, and is an excellent candidate for the bioremediation of industrial emissions. Here, we evaluated resource partitioning in H. akashiwo growing on a CO2 and NO gas mixture under three light intensities: 160, 560, or 1200 μmol quanta m−2 s−1. Light levels had no effect on growth; however, cultures in high light accumulated 2.3-fold more carbohydrates and 17% fewer lipids. Light levels did not affect the percentage of saturated fatty acids, but mono-unsaturates increased by 6% and poly-unsaturates decreased by 12% in high light. The fatty acid profiles reported here suggest that H. akashiwo is a good candidate for the production of neutral lipids for biodiesel and also omega-3 fatty acids, and that the quality of biodiesel acquired from feedstocks grown under fluctuating light conditions would be relatively stable.
Keywords:

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Bioengineering Environmental Engineering General Medicine Renewable Energy, Sustainability And The Environment Waste Management And Disposal
Source:

Bioresource Technology, 219, 246-251
DOI:

https://doi.org/10.1016/j.biortech.2016.07.119
ISSN:

0960-8524
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PDF
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Elsevier BV
Document Type:

Journal Article
Funding:

Grant no. NA10OAR4170084-1 ; Grant no. NA10OAR4170084-12 ; Grant no. NA14OAR4170087

Grant no. NA10OAR4170084-1 ; Grant no. NA10OAR4170084-12 ; Grant no. NA14OAR4170087 Less -
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urn:sha256:1fd65290308407a4573d2c7d8ec6d7db1a829cfccd8a63d004c01872fe8cf62a
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https://repository.library.noaa.gov/view/noaa/57616/noaa_57616_DS1.pdf
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Light intensity impacts the production of biofuel intermediates in Heterosigma akashiwo growing on simulated flue gas containing carbon dioxide and nitric oxide

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