Loading…
Identification of naturally isolated Southern Louisiana's algal strains and the effect of higher CO 2 content on fatty acid profiles for biodiesel production
Abstract BACKGROUND: Microalgae, with both high biomass productivity and oil content, are regarded as attractive candidates for the production of alternative biodiesel as well as for CO 2 biofixation. In the present study, four microalgal strains native to southeastern Louisiana's waters were i...
Saved in:
Published in: | Journal of chemical technology and biotechnology (1986) 2013-05, Vol.88 (5), p.948-957 |
---|---|
Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Abstract
BACKGROUND: Microalgae, with both high biomass productivity and oil content, are regarded as attractive candidates for the production of alternative biodiesel as well as for
CO
2
biofixation. In the present study, four microalgal strains native to southeastern Louisiana's waters were isolated and identified to evaluate their potential for the production of biodiesel. Selected strains were identified through genomic
DNA
in sequencing of either
16S rRNA
or
18S rRNA
genes followed by lipid and fatty acid content characterization and quantification.
RESULTS: High correlation was found with known nucleotide sequence identities at 98% with
Sellaphora pupula
, and 99% with
Synechococcus
sp.,
Chlorella sorokiniana
,
Scenedesmus abundans
, and
Chlorella vulgaris
(control). The fatty acid profiles of these organisms changed when using 5%
CO
2
aeration. Total fatty acids (
TFA
) decreased from 20.63 to 17.62, 54.83 to 24.4, and 29.82 to 23.99 g kg
−1
in
Synechococcus
sp.,
Sellaphora pupula
and
Chlorella sorokiniana
, respectively.
TFA
increased from 14.14 to 31.49 and 15.14 to 47.52 g kg
−1
dry biomass in
Scenedesmus abundans
and
Chlorella vulgaris
(control), respectively.
CONCLUSION:
Chlorella sorokiniana
, with a lower
C18
:3 and the highest biomass yield at 5%
CO
2
aeration, was found to be the best candidate for biodiesel production. © 2012 Society of Chemical Industry |
---|---|
ISSN: | 0268-2575 1097-4660 |
DOI: | 10.1002/jctb.3930 |