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Evaluation of indigenous fresh water microalga Scenedesmus obtusus for feed and fuel applications: Effect of Carbon dioxide, light and nutrient sources on growth and biochemical characteristics.

IR@CSIR-CFTRI

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Relation http://ir.cftri.com/13342/
http://dx.doi.org/10.1016/j.biortech.2016.01.044
 
Title Evaluation of indigenous fresh water microalga Scenedesmus obtusus for feed
and fuel applications: Effect of Carbon dioxide, light and nutrient sources on
growth and biochemical characteristics.
 
Creator Sarat Chandra, T.
Deepak, R. S.
Maneesh Kumar, M.
Mukherji, S.
Chauhan, V. S.
Sarada, R.
Mudliar, S. N.
 
Subject 01 Algae
 
Description Scenedesmus obtusus, a freshwater microalga, was evaluated for its growth and biochemical characteristics under various culture conditions. S. obtusus was tolerant at all tested CO2 concentrations up to 20%. Among the different nitrogen sources, urea showed enhanced biomass productivities up to 2-fold compared to control, where the nitrogen source was sodium nitrate. Light intensity and photoperiod had a significant effect on growth rate and biomass productivity. The growth rate was observed maximum under continuous light exposure at the light intensities, 30μmolm(-2)sec(-1) and 60μmolm(-2)sec(-1) The species was able to tolerate the salinity levels up to 25mM NaCl, where, the increase in the concentration of NaCl suppressed the growth. Ammonium acetate and glycine showed better growth rate and biomass productivity indicating mixotrophic ability of S. obtusus. Supplementation of acetate and bicarbonate significantly enhanced the biomass productivity. Biodiesel properties of S. obtusus cultivated at various culture conditions were estimated.
 
Date 2016
 
Type Article
PeerReviewed
 
Format pdf
 
Language en
 
Identifier http://ir.cftri.com/13342/1/Bioresour%20Technol.%202016%20May%3B207430-9.pdf
Sarat Chandra, T. and Deepak, R. S. and Maneesh Kumar, M. and Mukherji, S. and Chauhan, V. S. and Sarada, R. and Mudliar, S. N. (2016) Evaluation of indigenous fresh water microalga Scenedesmus obtusus for feed and fuel applications: Effect of Carbon dioxide, light and nutrient sources on growth and biochemical characteristics. Bioresource Technology, 207. pp. 430-439.