Development and validation of a minimal growth medium for recycling Chlorella vulgaris culture

► A method is presented for development of a highly assimilated minimal growth medium. ► The highly minimal growth medium proved effective for C. vulgaris growth. ► Ion accumulation was limited in a growth medium recycling experiment. ► Biomass productivity was maintained with the recycled medium. W...

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Bibliographic Details
Published in:Bioresource technology 2012-11, Vol.123, p.366-374
Main Authors: Hadj-Romdhane, F., Jaouen, P., Pruvost, J., Grizeau, D., Van Vooren, G., Bourseau, P.
Format: Article
Language:English
Subjects:
Biomass
Biotechnology
Carbon - analysis
Cell Culture Techniques - methods
Chemical and Process Engineering
Chlorella vulgaris
Chlorella vulgaris - drug effects
Chlorella vulgaris - growth & development
Chlorophyll - metabolism
Cultivation
Culture
culture media
Culture Media - pharmacology
economic productivity
Engineering Sciences
Growth medium
Ion assimilation
Ions
Life Sciences
microalgae
Pilot Projects
Productivity
Recycled
Recycling
Reproducibility of Results
Time Factors
Water recycling
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Summary:► A method is presented for development of a highly assimilated minimal growth medium. ► The highly minimal growth medium proved effective for C. vulgaris growth. ► Ion accumulation was limited in a growth medium recycling experiment. ► Biomass productivity was maintained with the recycled medium. When microalgae culture medium is recycled, ions (e.g. Na+, K+, Ca2+) that were not assimilated by the microalgae accumulate in the medium. Therefore, a growth medium (HAMGM) was developed that included ions that were more easily assimilated by Chlorella vulgaris, such as ammonium one (NH4+). Recycling performance was studied by carrying out 8-week continuous cultivation of C. vulgaris with recycled HAMGM medium. No loss of biomass productivity was observed compared to culture in a conventional medium, and accumulation of ions over time was negligible.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2012.07.085