Effect of salinity on growth of green alga Botryococcus braunii and its constituents

Growth of Botryococcus braunii (race ‘A’) and production of its constituents viz, hydrocarbon, carbohydrate, fatty acid, and carotenoids were influenced by different levels of salinity. Under salinity at 34 mM and 85 mM, 1.7–2.25-fold increase in the relative proportion of palmitic acid and two fold...

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Bibliographic Details
Published in:Bioresource technology 2007-02, Vol.98 (3), p.560-564
Main Authors: Rao, A. Ranga, Dayananda, C., Sarada, R., Shamala, T.R., Ravishankar, G.A.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biomass
Botryococcus braunii
Carbohydrate Metabolism
Carbohydrates
Carotenoids
Carotenoids - metabolism
Chlorophyll - metabolism
Chlorophyta - drug effects
Chlorophyta - metabolism
Fatty acids
Fundamental and applied biological sciences. Psychology
Hydrocarbon
Microalgae
Phosphates - metabolism
Salinity
Sodium Chloride - chemistry
Sodium Chloride - pharmacology
Time Factors
Water - chemistry
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Summary:Growth of Botryococcus braunii (race ‘A’) and production of its constituents viz, hydrocarbon, carbohydrate, fatty acid, and carotenoids were influenced by different levels of salinity. Under salinity at 34 mM and 85 mM, 1.7–2.25-fold increase in the relative proportion of palmitic acid and two fold increase in oleic acid were observed. A twofold increase in carotenoid content was noticed at 85 mM salinity with lutein (75% of total carotenoid) as the major carotenoid followed by β-carotene. The increase in biomass yields and changes in other constituents indicated the influence of salinity and the organism’s adaptability to the tested levels of salinity (17 mM to 85 mM).
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2006.02.007