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Effects of light intensity on the growth and lipid accumulation of microalga Scenedesmus sp. 11-1 under nitrogen limitation.
- Source :
-
Applied biochemistry and biotechnology [Appl Biochem Biotechnol] 2012 Apr; Vol. 166 (8), pp. 2127-37. Date of Electronic Publication: 2012 Mar 14. - Publication Year :
- 2012
-
Abstract
- Scenedesmus spp. have been reported as potential microalgal species used for the lipid production. This study investigated the effects of light intensity (at three levels: 50, 250, and 400 μmol photons m(-2) s(-1)) on the growth and lipid production of Scenedesmus sp. 11-1 under N-limited condition. Carotenoid to chlorophyll ratio was higher when algae 11-1 grew under 250 and 400 μmol photons m(-2) s(-1) than that under 50 μmol photons m(-2) s(-1), while protein contents was lower. Highest biomass yield (3.88 g L(-1)), lipid content (41.1 %), and neutral lipid content (32.9 %) were achieved when algae 11-1 grew at 400 μmol photons m(-2) s(-1). Lipid production was slight lower at 250 μmol photons m(-2) s(-1) level compared to 400 μmol photons m(-2) s(-1). The major fatty acids in the neutral lipid of 11-1 were oleic acid (43-52 %), palmitic acid (24-27 %), and linoleic acid (7-11 %). In addition, polyunsaturated fatty acids had a positive correlation with total lipid production, and monounsaturated fatty acids had a negative one.
- Subjects :
- Dose-Response Relationship, Radiation
Fatty Acids chemistry
Fatty Acids metabolism
Microalgae radiation effects
Nitrates metabolism
Pigments, Biological metabolism
Plant Proteins metabolism
Scenedesmus radiation effects
Light
Lipid Metabolism radiation effects
Microalgae growth & development
Microalgae metabolism
Nitrogen deficiency
Scenedesmus growth & development
Scenedesmus metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1559-0291
- Volume :
- 166
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Applied biochemistry and biotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 22415786
- Full Text :
- https://doi.org/10.1007/s12010-012-9639-2