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Improvement of the growth of Arthrospira (Spirulina) platensis from Toliara (Madagascar): Effect of agitation, salinity and CO2 addition

Ravelonandro, Pierre H. and Ratianarivo, Dominique H. and Joannis-Cassan, Claire and Isambert, Arsène and Raherimandimby, Marson Improvement of the growth of Arthrospira (Spirulina) platensis from Toliara (Madagascar): Effect of agitation, salinity and CO2 addition. (2011) Food and Bioproducts Processing, 89 (3). 209-216. ISSN 0960-3085

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Official URL: https://doi.org/10.1016/j.fbp.2010.04.009

Abstract

Arthrospira (Spirulina) platensis Toliara isolated from alkaline and salt lakes in the south-western area of Madagascar is a potential source of proteins that could efficiently fight against food deficiency in developing countries like Madagascar. Up to now, productivity in this country has been low, so a better understanding of the growth conditions of this species is needed to improve its production. Growth experiments were undertaken in bubble columns at laboratory scale. The influence of agitation of the culture, medium salinity (ranging from 13 to 35gL−1) and CO2 addition (ranging from 0 to 2%, v/v) on growth and protein content was examined. Because Arthrospira cells are fragile, a bubble column without additional mixing gave the best growth. Arthrospira (Spirulina) platensis showed higher specific growth rate (μmax) and protein content for lower salinity. Addition of 1% of CO2 improved the productivity by near 60%. The feasability of semi-continuous culture was demonstrated and optimal culture conditions led to a mean productivity of 0.22±0.03gL−1d−1, a mean specific growth rate of 0.015±0.002h−1 and a protein content of 53±2% of total dry weight.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Université d'Antananarivo (MADAGASCAR)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > CentraleSupélec (FRANCE)
Laboratory name:
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Deposited By: Loetitia MOYA
Deposited On:23 Jan 2019 07:57

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