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

i

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. ; ...

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Journal Title:

Bioresource Technology
Personal Author:

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

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

PDF
Publisher:

Elsevier BV
Document Type:

Journal Article
Funding:

Grant no. NA10OAR4170084-1 ; Grant no. NA10OAR4170084-12 ; Grant no. NA14OAR4170087
Rights Information:

Accepted Manuscript
Compliance:

Library
Main Document Checksum:

urn:sha256:1fd65290308407a4573d2c7d8ec6d7db1a829cfccd8a63d004c01872fe8cf62a
Download URL:

https://repository.library.noaa.gov/view/noaa/57616/noaa_57616_DS1.pdf
File Type:

[PDF - 244.79 KB ]

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