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